809380 Commits

Author SHA1 Message Date
Zheng Wang
bcda4624e8 misc: sgi-gru: fix use-after-free error in gru_set_context_option, gru_fault and gru_handle_user_call_os
[ Upstream commit 643a16a0eb1d6ac23744bb6e90a00fc21148a9dc ]

In some bad situation, the gts may be freed gru_check_chiplet_assignment.
The call chain can be gru_unload_context->gru_free_gru_context->gts_drop
and kfree finally. However, the caller didn't know if the gts is freed
or not and use it afterwards. This will trigger a Use after Free bug.

Fix it by introducing a return value to see if it's in error path or not.
Free the gts in caller if gru_check_chiplet_assignment check failed.

Fixes: 55484c45dbec ("gru: allow users to specify gru chiplet 2")
Signed-off-by: Zheng Wang <zyytlz.wz@163.com>
Acked-by: Dimitri Sivanich <sivanich@hpe.com>
Link: https://lore.kernel.org/r/20221110035033.19498-1-zyytlz.wz@163.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
ruanjinjie
1695b1adcc misc: tifm: fix possible memory leak in tifm_7xx1_switch_media()
[ Upstream commit fd2c930cf6a5b9176382c15f9acb1996e76e25ad ]

If device_register() returns error in tifm_7xx1_switch_media(),
name of kobject which is allocated in dev_set_name() called in device_add()
is leaked.

Never directly free @dev after calling device_register(), even
if it returned an error! Always use put_device() to give up the
reference initialized.

Fixes: 2428a8fe2261 ("tifm: move common device management tasks from tifm_7xx1 to tifm_core")
Signed-off-by: ruanjinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20221117064725.3478402-1-ruanjinjie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
Zhengchao Shao
04dd47a2e1 test_firmware: fix memory leak in test_firmware_init()
[ Upstream commit 7610615e8cdb3f6f5bbd9d8e7a5d8a63e3cabf2e ]

When misc_register() failed in test_firmware_init(), the memory pointed
by test_fw_config->name is not released. The memory leak information is
as follows:
unreferenced object 0xffff88810a34cb00 (size 32):
  comm "insmod", pid 7952, jiffies 4294948236 (age 49.060s)
  hex dump (first 32 bytes):
    74 65 73 74 2d 66 69 72 6d 77 61 72 65 2e 62 69  test-firmware.bi
    6e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  n...............
  backtrace:
    [<ffffffff81b21fcb>] __kmalloc_node_track_caller+0x4b/0xc0
    [<ffffffff81affb96>] kstrndup+0x46/0xc0
    [<ffffffffa0403a49>] __test_firmware_config_init+0x29/0x380 [test_firmware]
    [<ffffffffa040f068>] 0xffffffffa040f068
    [<ffffffff81002c41>] do_one_initcall+0x141/0x780
    [<ffffffff816a72c3>] do_init_module+0x1c3/0x630
    [<ffffffff816adb9e>] load_module+0x623e/0x76a0
    [<ffffffff816af471>] __do_sys_finit_module+0x181/0x240
    [<ffffffff89978f99>] do_syscall_64+0x39/0xb0
    [<ffffffff89a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: c92316bf8e94 ("test_firmware: add batched firmware tests")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20221119035721.18268-1-shaozhengchao@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
Yuan Can
28652ffa73 serial: sunsab: Fix error handling in sunsab_init()
[ Upstream commit 1a6ec673fb627c26e2267ca0a03849f91dbd9b40 ]

The sunsab_init() returns the platform_driver_register() directly without
checking its return value, if platform_driver_register() failed, the
allocated sunsab_ports is leaked.
Fix by free sunsab_ports and set it to NULL when platform_driver_register()
failed.

Fixes: c4d37215a824 ("[SERIAL] sunsab: Convert to of_driver framework.")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221123061212.52593-1-yuancan@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
Gabriel Somlo
1a0cbe9def serial: altera_uart: fix locking in polling mode
[ Upstream commit 1307c5d33cce8a41dd77c2571e4df65a5b627feb ]

Since altera_uart_interrupt() may also be called from
a poll timer in "serving_softirq" context, use
spin_[lock_irqsave|unlock_irqrestore] variants, which
are appropriate for both softirq and hardware interrupt
contexts.

Fixes: 2f8b9c15cd88 ("altera_uart: Add support for polling mode (IRQ-less)")
Signed-off-by: Gabriel Somlo <gsomlo@gmail.com>
Link: https://lore.kernel.org/r/20221122200426.888349-1-gsomlo@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
Jiri Slaby
6eae9d038c tty: serial: altera_uart_{r,t}x_chars() need only uart_port
[ Upstream commit 3af44d9bb0539d5fa27d6159d696fda5f3747bff ]

Both altera_uart_{r,t}x_chars() need only uart_port, not altera_uart. So
pass the former from altera_uart_interrupt() directly.

Apart it maybe saves a dereference, this makes the transition of
altera_uart_tx_chars() easier to follow in the next patch.

Cc: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Acked-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220920052049.20507-4-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 1307c5d33cce ("serial: altera_uart: fix locking in polling mode")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
Jiri Slaby
931f8d315a tty: serial: clean up stop-tx part in altera_uart_tx_chars()
[ Upstream commit d9c128117da41cf4cb0e80ae565b5d3ac79dffac ]

The "stop TX" path in altera_uart_tx_chars() is open-coded, so:
* use uart_circ_empty() to check if the buffer is empty, and
* when true, call altera_uart_stop_tx().

Cc: Tobias Klauser <tklauser@distanz.ch>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Acked-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20220920052049.20507-3-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 1307c5d33cce ("serial: altera_uart: fix locking in polling mode")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
Xiongfeng Wang
dfd15c5550 serial: pch: Fix PCI device refcount leak in pch_request_dma()
[ Upstream commit 8be3a7bf773700534a6e8f87f6ed2ed111254be5 ]

As comment of pci_get_slot() says, it returns a pci_device with its
refcount increased. The caller must decrement the reference count by
calling pci_dev_put().

Since 'dma_dev' is only used to filter the channel in filter(), we can
call pci_dev_put() before exiting from pch_request_dma(). Add the
missing pci_dev_put() for the normal and error path.

Fixes: 3c6a483275f4 ("Serial: EG20T: add PCH_UART driver")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20221122114559.27692-1-wangxiongfeng2@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
delisun
3a25c7891d serial: pl011: Do not clear RX FIFO & RX interrupt in unthrottle.
[ Upstream commit 032d5a71ed378ffc6a2d41a187d8488a4f9fe415 ]

Clearing the RX FIFO will cause data loss.
Copy the pl011_enabl_interrupts implementation, and remove the clear
interrupt and FIFO part of the code.

Fixes: 211565b10099 ("serial: pl011: UPSTAT_AUTORTS requires .throttle/unthrottle")
Signed-off-by: delisun <delisun@pateo.com.cn>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20221110020108.7700-1-delisun@pateo.com.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:26 +01:00
Jiamei Xie
78d837ce20 serial: amba-pl011: avoid SBSA UART accessing DMACR register
[ Upstream commit 94cdb9f33698478b0e7062586633c42c6158a786 ]

Chapter "B Generic UART" in "ARM Server Base System Architecture" [1]
documentation describes a generic UART interface. Such generic UART
does not support DMA. In current code, sbsa_uart_pops and
amba_pl011_pops share the same stop_rx operation, which will invoke
pl011_dma_rx_stop, leading to an access of the DMACR register. This
commit adds a using_rx_dma check in pl011_dma_rx_stop to avoid the
access to DMACR register for SBSA UARTs which does not support DMA.

When the kernel enables DMA engine with "CONFIG_DMA_ENGINE=y", Linux
SBSA PL011 driver will access PL011 DMACR register in some functions.
For most real SBSA Pl011 hardware implementations, the DMACR write
behaviour will be ignored. So these DMACR operations will not cause
obvious problems. But for some virtual SBSA PL011 hardware, like Xen
virtual SBSA PL011 (vpl011) device, the behaviour might be different.
Xen vpl011 emulation will inject a data abort to guest, when guest is
accessing an unimplemented UART register. As Xen VPL011 is SBSA
compatible, it will not implement DMACR register. So when Linux SBSA
PL011 driver access DMACR register, it will get an unhandled data abort
fault and the application will get a segmentation fault:
Unhandled fault at 0xffffffc00944d048
Mem abort info:
  ESR = 0x96000000
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x00: ttbr address size fault
Data abort info:
  ISV = 0, ISS = 0x00000000
  CM = 0, WnR = 0
swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000020e2e000
[ffffffc00944d048] pgd=100000003ffff803, p4d=100000003ffff803, pud=100000003ffff803, pmd=100000003fffa803, pte=006800009c090f13
Internal error: ttbr address size fault: 96000000 [#1] PREEMPT SMP
...
Call trace:
 pl011_stop_rx+0x70/0x80
 tty_port_shutdown+0x7c/0xb4
 tty_port_close+0x60/0xcc
 uart_close+0x34/0x8c
 tty_release+0x144/0x4c0
 __fput+0x78/0x220
 ____fput+0x1c/0x30
 task_work_run+0x88/0xc0
 do_notify_resume+0x8d0/0x123c
 el0_svc+0xa8/0xc0
 el0t_64_sync_handler+0xa4/0x130
 el0t_64_sync+0x1a0/0x1a4
Code: b9000083 b901f001 794038a0 8b000042 (b9000041)
---[ end trace 83dd93df15c3216f ]---
note: bootlogd[132] exited with preempt_count 1
/etc/rcS.d/S07bootlogd: line 47: 132 Segmentation fault start-stop-daemon

This has been discussed in the Xen community, and we think it should fix
this in Linux. See [2] for more information.

[1] https://developer.arm.com/documentation/den0094/c/?lang=en
[2] https://lists.xenproject.org/archives/html/xen-devel/2022-11/msg00543.html

Fixes: 0dd1e247fd39 (drivers: PL011: add support for the ARM SBSA generic UART)
Signed-off-by: Jiamei Xie <jiamei.xie@arm.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20221117103237.86856-1-jiamei.xie@arm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Sven Peter
e6a90d9d90 usb: typec: Check for ops->exit instead of ops->enter in altmode_exit
[ Upstream commit b6ddd180e3d9f92c1e482b3cdeec7dda086b1341 ]

typec_altmode_exit checks if ops->enter is not NULL but then calls
ops->exit a few lines below. Fix that and check for the function
pointer it's about to call instead.

Fixes: 8a37d87d72f0 ("usb: typec: Bus type for alternate modes")
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/20221114165924.33487-1-sven@svenpeter.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Gaosheng Cui
e6b0adff99 staging: vme_user: Fix possible UAF in tsi148_dma_list_add
[ Upstream commit 357057ee55d3c99a5de5abe8150f7bca04f8e53b ]

Smatch report warning as follows:

drivers/staging/vme_user/vme_tsi148.c:1757 tsi148_dma_list_add() warn:
  '&entry->list' not removed from list

In tsi148_dma_list_add(), the error path "goto err_dma" will not
remove entry->list from list->entries, but entry will be freed,
then list traversal may cause UAF.

Fix by removeing it from list->entries before free().

Fixes: b2383c90a9d6 ("vme: tsi148: fix first DMA item mapping")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20221117035914.2954454-1-cuigaosheng1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Linus Walleij
b5e479e6d3 usb: fotg210-udc: Fix ages old endianness issues
[ Upstream commit 46ed6026ca2181c917c8334a82e3eaf40a6234dd ]

The code in the FOTG210 driver isn't entirely endianness-agnostic
as reported by the kernel robot sparse testing. This came to
the surface while moving the files around.

The driver is only used on little-endian systems, so this causes
no real-world regression, but it is nice to be strict and have
some compile coverage also on big endian machines, so fix it
up with the right LE accessors.

Fixes: b84a8dee23fd ("usb: gadget: add Faraday fotg210_udc driver")
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/linux-usb/202211110910.0dJ7nZCn-lkp@intel.com/
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20221111090317.94228-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Rafael Mendonca
5e38c7bb88 uio: uio_dmem_genirq: Fix deadlock between irq config and handling
[ Upstream commit 118b918018175d9fcd8db667f905012e986cc2c9 ]

This fixes a concurrency issue addressed in commit 34cb27528398 ("UIO: Fix
concurrency issue"):

  "In a SMP case there was a race condition issue between
  Uio_pdrv_genirq_irqcontrol() running on one CPU and irq handler on
  another CPU. Fix it by spin_locking shared resources access inside irq
  handler."

The implementation of "uio_dmem_genirq" was based on "uio_pdrv_genirq" and
it is used in a similar manner to the "uio_pdrv_genirq" driver with respect
to interrupt configuration and handling. At the time "uio_dmem_genirq" was
merged, both had the same implementation of the 'uio_info' handlers
irqcontrol() and handler(), thus, both had the same concurrency issue
mentioned by the above commit. However, the above patch was only applied to
the "uio_pdrv_genirq" driver.

Split out from commit 34cb27528398 ("UIO: Fix concurrency issue").

Fixes: 0a0c3b5a24bd ("Add new uio device for dynamic memory allocation")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Link: https://lore.kernel.org/r/20220930224100.816175-3-rafaelmendsr@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Rafael Mendonca
ac5585bb06 uio: uio_dmem_genirq: Fix missing unlock in irq configuration
[ Upstream commit 9de255c461d1b3f0242b3ad1450c3323a3e00b34 ]

Commit b74351287d4b ("uio: fix a sleep-in-atomic-context bug in
uio_dmem_genirq_irqcontrol()") started calling disable_irq() without
holding the spinlock because it can sleep. However, that fix introduced
another bug: if interrupt is already disabled and a new disable request
comes in, then the spinlock is not unlocked:

root@localhost:~# printf '\x00\x00\x00\x00' > /dev/uio0
root@localhost:~# printf '\x00\x00\x00\x00' > /dev/uio0
root@localhost:~# [   14.851538] BUG: scheduling while atomic: bash/223/0x00000002
[   14.851991] Modules linked in: uio_dmem_genirq uio myfpga(OE) bochs drm_vram_helper drm_ttm_helper ttm drm_kms_helper drm snd_pcm ppdev joydev psmouse snd_timer snd e1000fb_sys_fops syscopyarea parport sysfillrect soundcore sysimgblt input_leds pcspkr i2c_piix4 serio_raw floppy evbug qemu_fw_cfg mac_hid pata_acpi ip_tables x_tables autofs4 [last unloaded: parport_pc]
[   14.854206] CPU: 0 PID: 223 Comm: bash Tainted: G           OE      6.0.0-rc7 #21
[   14.854786] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
[   14.855664] Call Trace:
[   14.855861]  <TASK>
[   14.856025]  dump_stack_lvl+0x4d/0x67
[   14.856325]  dump_stack+0x14/0x1a
[   14.856583]  __schedule_bug.cold+0x4b/0x5c
[   14.856915]  __schedule+0xe81/0x13d0
[   14.857199]  ? idr_find+0x13/0x20
[   14.857456]  ? get_work_pool+0x2d/0x50
[   14.857756]  ? __flush_work+0x233/0x280
[   14.858068]  ? __schedule+0xa95/0x13d0
[   14.858307]  ? idr_find+0x13/0x20
[   14.858519]  ? get_work_pool+0x2d/0x50
[   14.858798]  schedule+0x6c/0x100
[   14.859009]  schedule_hrtimeout_range_clock+0xff/0x110
[   14.859335]  ? tty_write_room+0x1f/0x30
[   14.859598]  ? n_tty_poll+0x1ec/0x220
[   14.859830]  ? tty_ldisc_deref+0x1a/0x20
[   14.860090]  schedule_hrtimeout_range+0x17/0x20
[   14.860373]  do_select+0x596/0x840
[   14.860627]  ? __kernel_text_address+0x16/0x50
[   14.860954]  ? poll_freewait+0xb0/0xb0
[   14.861235]  ? poll_freewait+0xb0/0xb0
[   14.861517]  ? rpm_resume+0x49d/0x780
[   14.861798]  ? common_interrupt+0x59/0xa0
[   14.862127]  ? asm_common_interrupt+0x2b/0x40
[   14.862511]  ? __uart_start.isra.0+0x61/0x70
[   14.862902]  ? __check_object_size+0x61/0x280
[   14.863255]  core_sys_select+0x1c6/0x400
[   14.863575]  ? vfs_write+0x1c9/0x3d0
[   14.863853]  ? vfs_write+0x1c9/0x3d0
[   14.864121]  ? _copy_from_user+0x45/0x70
[   14.864526]  do_pselect.constprop.0+0xb3/0xf0
[   14.864893]  ? do_syscall_64+0x6d/0x90
[   14.865228]  ? do_syscall_64+0x6d/0x90
[   14.865556]  __x64_sys_pselect6+0x76/0xa0
[   14.865906]  do_syscall_64+0x60/0x90
[   14.866214]  ? syscall_exit_to_user_mode+0x2a/0x50
[   14.866640]  ? do_syscall_64+0x6d/0x90
[   14.866972]  ? do_syscall_64+0x6d/0x90
[   14.867286]  ? do_syscall_64+0x6d/0x90
[   14.867626]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
[...] stripped
[   14.872959]  </TASK>

('myfpga' is a simple 'uio_dmem_genirq' driver I wrote to test this)

The implementation of "uio_dmem_genirq" was based on "uio_pdrv_genirq" and
it is used in a similar manner to the "uio_pdrv_genirq" driver with respect
to interrupt configuration and handling. At the time "uio_dmem_genirq" was
introduced, both had the same implementation of the 'uio_info' handlers
irqcontrol() and handler(). Then commit 34cb27528398 ("UIO: Fix concurrency
issue"), which was only applied to "uio_pdrv_genirq", ended up making them
a little different. That commit, among other things, changed disable_irq()
to disable_irq_nosync() in the implementation of irqcontrol(). The
motivation there was to avoid a deadlock between irqcontrol() and
handler(), since it added a spinlock in the irq handler, and disable_irq()
waits for the completion of the irq handler.

By changing disable_irq() to disable_irq_nosync() in irqcontrol(), we also
avoid the sleeping-while-atomic bug that commit b74351287d4b ("uio: fix a
sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()") was trying to
fix. Thus, this fixes the missing unlock in irqcontrol() by importing the
implementation of irqcontrol() handler from the "uio_pdrv_genirq" driver.
In the end, it reverts commit b74351287d4b ("uio: fix a
sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()") and change
disable_irq() to disable_irq_nosync().

It is worth noting that this still does not address the concurrency issue
fixed by commit 34cb27528398 ("UIO: Fix concurrency issue"). It will be
addressed separately in the next commits.

Split out from commit 34cb27528398 ("UIO: Fix concurrency issue").

Fixes: b74351287d4b ("uio: fix a sleep-in-atomic-context bug in uio_dmem_genirq_irqcontrol()")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Link: https://lore.kernel.org/r/20220930224100.816175-2-rafaelmendsr@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Rafael Mendonca
03cfbd141e vfio: platform: Do not pass return buffer to ACPI _RST method
[ Upstream commit e67e070632a665c932d534b8b800477bb3111449 ]

The ACPI _RST method has no return value, there's no need to pass a return
buffer to acpi_evaluate_object().

Fixes: d30daa33ec1d ("vfio: platform: call _RST method when using ACPI")
Signed-off-by: Rafael Mendonca <rafaelmendsr@gmail.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20221018152825.891032-1-rafaelmendsr@gmail.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Yang Yingliang
3bb9c92c27 class: fix possible memory leak in __class_register()
[ Upstream commit 8c3e8a6bdb5253b97ad532570f8b5db5f7a06407 ]

If class_add_groups() returns error, the 'cp->subsys' need be
unregister, and the 'cp' need be freed.

We can not call kset_unregister() here, because the 'cls' will
be freed in callback function class_release() and it's also
freed in caller's error path, it will cause double free.

So fix this by calling kobject_del() and kfree_const(name) to
cleanup kobject. Besides, call kfree() to free the 'cp'.

Fault injection test can trigger this:

unreferenced object 0xffff888102fa8190 (size 8):
  comm "modprobe", pid 502, jiffies 4294906074 (age 49.296s)
  hex dump (first 8 bytes):
    70 6b 74 63 64 76 64 00                          pktcdvd.
  backtrace:
    [<00000000e7c7703d>] __kmalloc_track_caller+0x1ae/0x320
    [<000000005e4d70bc>] kstrdup+0x3a/0x70
    [<00000000c2e5e85a>] kstrdup_const+0x68/0x80
    [<000000000049a8c7>] kvasprintf_const+0x10b/0x190
    [<0000000029123163>] kobject_set_name_vargs+0x56/0x150
    [<00000000747219c9>] kobject_set_name+0xab/0xe0
    [<0000000005f1ea4e>] __class_register+0x15c/0x49a

unreferenced object 0xffff888037274000 (size 1024):
  comm "modprobe", pid 502, jiffies 4294906074 (age 49.296s)
  hex dump (first 32 bytes):
    00 40 27 37 80 88 ff ff 00 40 27 37 80 88 ff ff  .@'7.....@'7....
    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........
  backtrace:
    [<00000000151f9600>] kmem_cache_alloc_trace+0x17c/0x2f0
    [<00000000ecf3dd95>] __class_register+0x86/0x49a

Fixes: ced6473e7486 ("driver core: class: add class_groups support")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221026082803.3458760-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:25 +01:00
Kartik
7c0b0107a5 serial: tegra: Read DMA status before terminating
[ Upstream commit 109a951a9f1fd8a34ebd1896cbbd5d5cede880a7 ]

Read the DMA status before terminating the DMA, as doing so deletes
the DMA desc.

Also, to get the correct transfer status information, pause the DMA
using dmaengine_pause() before reading the DMA status.

Fixes: e9ea096dd225 ("serial: tegra: add serial driver")
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Signed-off-by: Kartik <kkartik@nvidia.com>
Link: https://lore.kernel.org/r/1666105086-17326-1-git-send-email-kkartik@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Dmitry Osipenko
94bf6360b2 tty: serial: tegra: Activate RX DMA transfer by request
[ Upstream commit d5e3fadb70125c6c41f692cf1c0e626c12e11de1 ]

This allows DMA engine to go into runtime-suspended mode whenever there is
no data to receive, instead of keeping DMA active all the time while TTY
is opened (i.e. permanently active in practice, like in the case of UART
Bluetooth).

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20200112180919.5194-2-digetx@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Krishna Yarlagadda
77b138bf30 serial: tegra: Add PIO mode support
[ Upstream commit 1dce2df3ee06e4f10fd9b8919a0f2e90e0ac3188 ]

Add PIO mode support in receive and transmit path with RX interrupt
trigger of 16 bytes for Tegra194 and older chips.

Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/1567572187-29820-13-git-send-email-kyarlagadda@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Krishna Yarlagadda
b1dc1bb6b0 serial: tegra: report clk rate errors
[ Upstream commit d781ec21bae6ff8f9e07682e8947a654484611f5 ]

Standard UART controllers support +/-4% baud rate error tolerance.
Tegra186 only supports 0% to +4% error tolerance whereas other Tegra
chips support standard +/-4% rate. Add chip data for knowing error
tolerance level for each soc. Creating new compatible for Tegra194
chip as it supports baud rate error tolerance of -2 to +2%, different
from older chips.

Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/1567572187-29820-12-git-send-email-kyarlagadda@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Krishna Yarlagadda
fe1e568133 serial: tegra: add support to adjust baud rate
[ Upstream commit f04a3cc8d4550463e0c15be59d91177a5def1ca5 ]

Add support to adjust baud rates to fall under supported tolerance
range through DT.

Tegra186 chip has a hardware issue resulting in frame errors when
tolerance level for baud rate is negative. Provided entries to adjust
baud rate to be within acceptable range and work with devices that
can send negative baud rate. Also report error when baud rate set is
out of tolerance range of controller updated in device tree.

Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/1567572187-29820-11-git-send-email-kyarlagadda@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Krishna Yarlagadda
d0907bdd81 serial: tegra: add support to use 8 bytes trigger
[ Upstream commit 7799a3aa81279637031abad19e56e4bbf1481d4e ]

Add support to use 8 bytes trigger for Tegra186 SOC.

Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/1567572187-29820-9-git-send-email-kyarlagadda@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Krishna Yarlagadda
fed2e5ed69 serial: tegra: set maximum num of uart ports to 8
[ Upstream commit 53d0a062cb771d62cd205d9e2845fe26c9989142 ]

Set maximum number of UART ports to 8 as older chips have 5 ports and
Tergra186 and later chips will have 8 ports. Add this info to chip
data. Read device tree compatible of this driver and register uart
driver with max ports of matching chip data.

Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/1567572187-29820-8-git-send-email-kyarlagadda@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Krishna Yarlagadda
f76c7f13ff serial: tegra: check for FIFO mode enabled status
[ Upstream commit 222dcdff3405a31803aecd3bf66f62d46b8bda98 ]

Chips prior to Tegra186 needed delay of 3 UART clock cycles to avoid
data loss. This issue is fixed in Tegra186 and a new flag is added to
check if FIFO mode is enabled. chip data updated to check if this flag
is available for a chip. Tegra186 has new compatible to enable this
flag.

Signed-off-by: Shardar Shariff Md <smohammed@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/1567572187-29820-7-git-send-email-kyarlagadda@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Ahung Cheng
8d54956ddf serial: tegra: avoid reg access when clk disabled
[ Upstream commit 494f79bd2365703e4093efa0ecf4b139d83aba97 ]

This avoids two race conditions from the UART shutdown sequence both
leading to 'Machine check error in AXI2APB' and kernel oops.

One was that the clock was disabled before the DMA was terminated making
it possible for the DMA callbacks to be called after the clock was
disabled. These callbacks could write to the UART registers causing
timeout.

The second was that the clock was disabled before the UART was
completely flagged as closed. This is done after the shutdown is called
and a new write could be started after the clock was disabled.
tegra_uart_start_pio_tx could be called causing timeout.

Given that the baud rate is reset at the end of shutdown sequence, this
fix is to examine the baud rate to avoid register access from both race
conditions.

Besides, terminate the DMA before disabling the clock.

Signed-off-by: Ahung Cheng <ahcheng@nvidia.com>
Signed-off-by: Shardar Mohammed <smohammed@nvidia.com>
Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com>
Link: https://lore.kernel.org/r/1567572187-29820-3-git-send-email-kyarlagadda@nvidia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 109a951a9f1f ("serial: tegra: Read DMA status before terminating")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:24 +01:00
Yang Yingliang
a524e7fed6 drivers: dio: fix possible memory leak in dio_init()
[ Upstream commit e63e99397b2613d50a5f4f02ed07307e67a190f1 ]

If device_register() returns error, the 'dev' and name needs be
freed. Add a release function, and then call put_device() in the
error path, so the name is freed in kobject_cleanup() and to the
'dev' is freed in release function.

Fixes: 2e4c77bea3d8 ("m68k: dio - Kill warn_unused_result warnings")
Fixes: 1fa5ae857bb1 ("driver core: get rid of struct device's bus_id string array")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221109064036.1835346-1-yangyingliang@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Dragos Tatulea
bc2f5760b4 IB/IPoIB: Fix queue count inconsistency for PKEY child interfaces
[ Upstream commit dbc94a0fb81771a38733c0e8f2ea8c4fa6934dc1 ]

There are 2 ways to create IPoIB PKEY child interfaces:
1) Writing a PKEY to /sys/class/net/<ib parent interface>/create_child.
2) Using netlink with iproute.

While with sysfs the child interface has the same number of tx and
rx queues as the parent, with netlink there will always be 1 tx
and 1 rx queue for the child interface. That's because the
get_num_tx/rx_queues() netlink ops are missing and the default value
of 1 is taken for the number of queues (in rtnl_create_link()).

This change adds the get_num_tx/rx_queues() ops which allows for
interfaces with multiple queues to be created over netlink. This
constant only represents the max number of tx and rx queues on that
net device.

Fixes: 9baa0b036410 ("IB/ipoib: Add rtnl_link_ops support")
Signed-off-by: Dragos Tatulea <dtatulea@nvidia.com>
Link: https://lore.kernel.org/r/f4a42c8aa43c02d5ae5559a60c3e5e0f18c82531.1670485816.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Xiongfeng Wang
6b9e43c409 hwrng: geode - Fix PCI device refcount leak
[ Upstream commit 9f6ec8dc574efb7f4f3d7ee9cd59ae307e78f445 ]

for_each_pci_dev() is implemented by pci_get_device(). The comment of
pci_get_device() says that it will increase the reference count for the
returned pci_dev and also decrease the reference count for the input
pci_dev @from if it is not NULL.

If we break for_each_pci_dev() loop with pdev not NULL, we need to call
pci_dev_put() to decrease the reference count. We add a new struct
'amd_geode_priv' to record pointer of the pci_dev and membase, and then
add missing pci_dev_put() for the normal and error path.

Fixes: ef5d862734b8 ("[PATCH] Add Geode HW RNG driver")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Xiongfeng Wang
e246f5eff2 hwrng: amd - Fix PCI device refcount leak
[ Upstream commit ecadb5b0111ea19fc7c240bb25d424a94471eb7d ]

for_each_pci_dev() is implemented by pci_get_device(). The comment of
pci_get_device() says that it will increase the reference count for the
returned pci_dev and also decrease the reference count for the input
pci_dev @from if it is not NULL.

If we break for_each_pci_dev() loop with pdev not NULL, we need to call
pci_dev_put() to decrease the reference count. Add the missing
pci_dev_put() for the normal and error path.

Fixes: 96d63c0297cc ("[PATCH] Add AMD HW RNG driver")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Gaosheng Cui
005f8c3d14 crypto: img-hash - Fix variable dereferenced before check 'hdev->req'
[ Upstream commit 04ba54e5af8f8f0137b08cb51a0b3a2e1ea46c94 ]

Smatch report warning as follows:

drivers/crypto/img-hash.c:366 img_hash_dma_task() warn: variable
dereferenced before check 'hdev->req'

Variable dereferenced should be done after check 'hdev->req',
fix it.

Fixes: d358f1abbf71 ("crypto: img-hash - Add Imagination Technologies hw hash accelerator")
Fixes: 10badea259fa ("crypto: img-hash - Fix null pointer exception")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Zhang Xiaoxu
164a86980b orangefs: Fix sysfs not cleanup when dev init failed
[ Upstream commit ea60a4ad0cf88b411cde6888b8c890935686ecd7 ]

When the dev init failed, should cleanup the sysfs, otherwise, the
module will never be loaded since can not create duplicate sysfs
directory:

  sysfs: cannot create duplicate filename '/fs/orangefs'

  CPU: 1 PID: 6549 Comm: insmod Tainted: G        W          6.0.0+ #44
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014
  Call Trace:
   <TASK>
   dump_stack_lvl+0x34/0x44
   sysfs_warn_dup.cold+0x17/0x24
   sysfs_create_dir_ns+0x16d/0x180
   kobject_add_internal+0x156/0x3a0
   kobject_init_and_add+0xcf/0x120
   orangefs_sysfs_init+0x7e/0x3a0 [orangefs]
   orangefs_init+0xfe/0x1000 [orangefs]
   do_one_initcall+0x87/0x2a0
   do_init_module+0xdf/0x320
   load_module+0x2f98/0x3330
   __do_sys_finit_module+0x113/0x1b0
   do_syscall_64+0x35/0x80
   entry_SYSCALL_64_after_hwframe+0x46/0xb0

  kobject_add_internal failed for orangefs with -EEXIST, don't try to register things with the same name in the same directory.

Fixes: 2f83ace37181 ("orangefs: put register_chrdev immediately before register_filesystem")
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Wang Yufen
6243b13bf7 RDMA/hfi1: Fix error return code in parse_platform_config()
[ Upstream commit 725349f8ba1e78a146c6ff8f3ee5e2712e517106 ]

In the previous iteration of the while loop, the "ret" may have been
assigned a value of 0, so the error return code -EINVAL may have been
incorrectly set to 0. To fix set valid return code before calling to
goto.

Fixes: 97167e813415 ("staging/rdma/hfi1: Tune for unknown channel if configuration file is absent")
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Link: https://lore.kernel.org/r/1669953638-11747-1-git-send-email-wangyufen@huawei.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Gaosheng Cui
3007f96ca2 scsi: snic: Fix possible UAF in snic_tgt_create()
[ Upstream commit e118df492320176af94deec000ae034cc92be754 ]

Smatch reports a warning as follows:

drivers/scsi/snic/snic_disc.c:307 snic_tgt_create() warn:
  '&tgt->list' not removed from list

If device_add() fails in snic_tgt_create(), tgt will be freed, but
tgt->list will not be removed from snic->disc.tgt_list, then list traversal
may cause UAF.

Remove from snic->disc.tgt_list before free().

Fixes: c8806b6c9e82 ("snic: driver for Cisco SCSI HBA")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20221117035100.2944812-1-cuigaosheng1@huawei.com
Acked-by: Narsimhulu Musini <nmusini@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Chen Zhongjin
cf74d1197c scsi: fcoe: Fix transport not deattached when fcoe_if_init() fails
[ Upstream commit 4155658cee394b22b24c6d64e49247bf26d95b92 ]

fcoe_init() calls fcoe_transport_attach(&fcoe_sw_transport), but when
fcoe_if_init() fails, &fcoe_sw_transport is not detached and leaves freed
&fcoe_sw_transport on fcoe_transports list. This causes panic when
reinserting module.

 BUG: unable to handle page fault for address: fffffbfff82e2213
 RIP: 0010:fcoe_transport_attach+0xe1/0x230 [libfcoe]
 Call Trace:
  <TASK>
  do_one_initcall+0xd0/0x4e0
  load_module+0x5eee/0x7210
  ...

Fixes: 78a582463c1e ("[SCSI] fcoe: convert fcoe.ko to become an fcoe transport provider driver")
Signed-off-by: Chen Zhongjin <chenzhongjin@huawei.com>
Link: https://lore.kernel.org/r/20221115092442.133088-1-chenzhongjin@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:23 +01:00
Shang XiaoJing
5debd337f5 scsi: ipr: Fix WARNING in ipr_init()
[ Upstream commit e6f108bffc3708ddcff72324f7d40dfcd0204894 ]

ipr_init() will not call unregister_reboot_notifier() when
pci_register_driver() fails, which causes a WARNING. Call
unregister_reboot_notifier() when pci_register_driver() fails.

notifier callback ipr_halt [ipr] already registered
WARNING: CPU: 3 PID: 299 at kernel/notifier.c:29
notifier_chain_register+0x16d/0x230
Modules linked in: ipr(+) xhci_pci_renesas xhci_hcd ehci_hcd usbcore
led_class gpu_sched drm_buddy video wmi drm_ttm_helper ttm
drm_display_helper drm_kms_helper drm drm_panel_orientation_quirks
agpgart cfbft
CPU: 3 PID: 299 Comm: modprobe Tainted: G        W
6.1.0-rc1-00190-g39508d23b672-dirty #332
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.15.0-0-g2dd4b9b3f840-prebuilt.qemu.org 04/01/2014
RIP: 0010:notifier_chain_register+0x16d/0x230
Call Trace:
 <TASK>
 __blocking_notifier_chain_register+0x73/0xb0
 ipr_init+0x30/0x1000 [ipr]
 do_one_initcall+0xdb/0x480
 do_init_module+0x1cf/0x680
 load_module+0x6a50/0x70a0
 __do_sys_finit_module+0x12f/0x1c0
 do_syscall_64+0x3f/0x90
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

Fixes: f72919ec2bbb ("[SCSI] ipr: implement shutdown changes and remove obsolete write cache parameter")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20221113064513.14028-1-shangxiaojing@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:22 +01:00
Yang Yingliang
76a5041e48 scsi: fcoe: Fix possible name leak when device_register() fails
[ Upstream commit 47b6a122c7b69a876c7ee2fc064a26b09627de9d ]

If device_register() returns an error, the name allocated by dev_set_name()
needs to be freed. As the comment of device_register() says, one should use
put_device() to give up the reference in the error path. Fix this by
calling put_device(), then the name can be freed in kobject_cleanup().

The 'fcf' is freed in fcoe_fcf_device_release(), so the kfree() in the
error path can be removed.

The 'ctlr' is freed in fcoe_ctlr_device_release(), so don't use the error
label, just return NULL after calling put_device().

Fixes: 9a74e884ee71 ("[SCSI] libfcoe: Add fcoe_sysfs")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221112094310.3633291-1-yangyingliang@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:22 +01:00
Yang Yingliang
49f63d5699 scsi: hpsa: Fix possible memory leak in hpsa_add_sas_device()
[ Upstream commit fda34a5d304d0b98cc967e8763b52221b66dc202 ]

If hpsa_sas_port_add_rphy() returns an error, the 'rphy' allocated in
sas_end_device_alloc() needs to be freed. Address this by calling
sas_rphy_free() in the error path.

Fixes: d04e62b9d63a ("hpsa: add in sas transport class")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221111043012.1074466-1-yangyingliang@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:22 +01:00
Yang Yingliang
2acd1ecc2e scsi: hpsa: Fix error handling in hpsa_add_sas_host()
[ Upstream commit 4ef174a3ad9b5d73c1b6573e244ebba2b0d86eac ]

hpsa_sas_port_add_phy() does:
  ...
  sas_phy_add()  -> may return error here
  sas_port_add_phy()
  ...

Whereas hpsa_free_sas_phy() does:
  ...
  sas_port_delete_phy()
  sas_phy_delete()
  ...

If hpsa_sas_port_add_phy() returns an error, hpsa_free_sas_phy() can not be
called to free the memory because the port and the phy have not been added
yet.

Replace hpsa_free_sas_phy() with sas_phy_free() and kfree() to avoid kernel
crash in this case.

Fixes: d04e62b9d63a ("hpsa: add in sas transport class")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20221110151129.394389-1-yangyingliang@huawei.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:22 +01:00
Zhang Yiqun
e4ec204289 crypto: tcrypt - Fix multibuffer skcipher speed test mem leak
[ Upstream commit 1aa33fc8d4032227253ceb736f47c52b859d9683 ]

In the past, the data for mb-skcipher test has been allocated
twice, that means the first allcated memory area is without
free, which may cause a potential memory leakage. So this
patch is to remove one allocation to fix this error.

Fixes: e161c5930c15 ("crypto: tcrypt - add multibuf skcipher...")
Signed-off-by: Zhang Yiqun <zhangyiqun@phytium.com.cn>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:22 +01:00
Yuan Can
f4d1c14e8b scsi: hpsa: Fix possible memory leak in hpsa_init_one()
[ Upstream commit 9c9ff300e0de07475796495d86f449340d454a0c ]

The hpda_alloc_ctlr_info() allocates h and its field reply_map. However, in
hpsa_init_one(), if alloc_percpu() failed, the hpsa_init_one() jumps to
clean1 directly, which frees h and leaks the h->reply_map.

Fix by calling hpda_free_ctlr_info() to release h->replay_map and h instead
free h directly.

Fixes: 8b834bff1b73 ("scsi: hpsa: fix selection of reply queue")
Signed-off-by: Yuan Can <yuancan@huawei.com>
Link: https://lore.kernel.org/r/20221122015751.87284-1-yuancan@huawei.com
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:22 +01:00
Don Brace
b62e7453a9 scsi: hpsa: use local workqueues instead of system workqueues
[ Upstream commit 0119208885b3faf2459de6d3fcc6d090580b906f ]

Avoid system stalls by switching to local workqueue.

Reviewed-by: Justin Lindley <justin.lindley@microsemi.com>
Reviewed-by: David Carroll <david.carroll@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: 9c9ff300e0de ("scsi: hpsa: Fix possible memory leak in hpsa_init_one()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:22 +01:00
Zhang Xiaoxu
7340ca9f78 RDMA/rxe: Fix NULL-ptr-deref in rxe_qp_do_cleanup() when socket create failed
[ Upstream commit f67376d801499f4fa0838c18c1efcad8840e550d ]

There is a null-ptr-deref when mount.cifs over rdma:

  BUG: KASAN: null-ptr-deref in rxe_qp_do_cleanup+0x2f3/0x360 [rdma_rxe]
  Read of size 8 at addr 0000000000000018 by task mount.cifs/3046

  CPU: 2 PID: 3046 Comm: mount.cifs Not tainted 6.1.0-rc5+ #62
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc3
  Call Trace:
   <TASK>
   dump_stack_lvl+0x34/0x44
   kasan_report+0xad/0x130
   rxe_qp_do_cleanup+0x2f3/0x360 [rdma_rxe]
   execute_in_process_context+0x25/0x90
   __rxe_cleanup+0x101/0x1d0 [rdma_rxe]
   rxe_create_qp+0x16a/0x180 [rdma_rxe]
   create_qp.part.0+0x27d/0x340
   ib_create_qp_kernel+0x73/0x160
   rdma_create_qp+0x100/0x230
   _smbd_get_connection+0x752/0x20f0
   smbd_get_connection+0x21/0x40
   cifs_get_tcp_session+0x8ef/0xda0
   mount_get_conns+0x60/0x750
   cifs_mount+0x103/0xd00
   cifs_smb3_do_mount+0x1dd/0xcb0
   smb3_get_tree+0x1d5/0x300
   vfs_get_tree+0x41/0xf0
   path_mount+0x9b3/0xdd0
   __x64_sys_mount+0x190/0x1d0
   do_syscall_64+0x35/0x80
   entry_SYSCALL_64_after_hwframe+0x46/0xb0

The root cause of the issue is the socket create failed in
rxe_qp_init_req().

So move the reset rxe_qp_do_cleanup() after the NULL ptr check.

Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20221122151437.1057671-1-zhangxiaoxu5@huawei.com
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00
Uwe Kleine-König
61b8bf60ed crypto: ccree - Make cc_debugfs_global_fini() available for module init function
[ Upstream commit 8e96729fc26c8967db45a3fb7a60387619f77a22 ]

ccree_init() calls cc_debugfs_global_fini(), the former is an init
function and the latter an exit function though.

A modular build emits:

	WARNING: modpost: drivers/crypto/ccree/ccree.o: section mismatch in reference: init_module (section: .init.text) -> cc_debugfs_global_fini (section: .exit.text)

(with CONFIG_DEBUG_SECTION_MISMATCH=y).

Fixes: 4f1c596df706 ("crypto: ccree - Remove debugfs when platform_driver_register failed")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00
Xiongfeng Wang
bb6ca4f054 RDMA/hfi: Decrease PCI device reference count in error path
[ Upstream commit 9b51d072da1d27e1193e84708201c48e385ad912 ]

pci_get_device() will increase the reference count for the returned
pci_dev, and also decrease the reference count for the input parameter
*from* if it is not NULL.

If we break out the loop in node_affinity_init() with 'dev' not NULL, we
need to call pci_dev_put() to decrease the reference count. Add missing
pci_dev_put() in error path.

Fixes: c513de490f80 ("IB/hfi1: Invalid NUMA node information can cause a divide by zero")
Signed-off-by: Xiongfeng Wang <wangxiongfeng2@huawei.com>
Link: https://lore.kernel.org/r/20221117131546.113280-1-wangxiongfeng2@huawei.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00
Zeng Heng
5427d904e3 PCI: Check for alloc failure in pci_request_irq()
[ Upstream commit 2d9cd957d40c3ac491b358e7cff0515bb07a3a9c ]

When kvasprintf() fails to allocate memory, it returns a NULL pointer.
Return error from pci_request_irq() so we don't dereference it.

[bhelgaas: commit log]
Fixes: 704e8953d3e9 ("PCI/irq: Add pci_request_irq() and pci_free_irq() helpers")
Link: https://lore.kernel.org/r/20221121020029.3759444-1-zengheng4@huawei.com
Signed-off-by: Zeng Heng <zengheng4@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00
Harshit Mogalapalli
4a8087d0cc scsi: scsi_debug: Fix a warning in resp_write_scat()
[ Upstream commit 216e179724c1d9f57a8ababf8bd7aaabef67f01b ]

As 'lbdof_blen' is coming from user, if the size in kzalloc() is >=
MAX_ORDER then we hit a warning.

Call trace:

sg_ioctl
 sg_ioctl_common
   scsi_ioctl
    sg_scsi_ioctl
     blk_execute_rq
      blk_mq_sched_insert_request
       blk_mq_run_hw_queue
        __blk_mq_delay_run_hw_queue
         __blk_mq_run_hw_queue
          blk_mq_sched_dispatch_requests
           __blk_mq_sched_dispatch_requests
            blk_mq_dispatch_rq_list
             scsi_queue_rq
              scsi_dispatch_cmd
               scsi_debug_queuecommand
                schedule_resp
                 resp_write_scat

If you try to allocate a memory larger than(>=) MAX_ORDER, then kmalloc()
will definitely fail.  It creates a stack trace and messes up dmesg.  The
user controls the size here so if they specify a too large size it will
fail.

Add __GFP_NOWARN in order to avoid too large allocation warning.  This is
detected by static analysis using smatch.

Fixes: 481b5e5c7949 ("scsi: scsi_debug: add resp_write_scat function")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/r/20221111100526.1790533-1-harshit.m.mogalapalli@oracle.com
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00
Mark Zhang
362dc0f981 RDMA/nldev: Return "-EAGAIN" if the cm_id isn't from expected port
[ Upstream commit ecacb3751f254572af0009b9501e2cdc83a30b6a ]

When filling a cm_id entry, return "-EAGAIN" instead of 0 if the cm_id
doesn'the have the same port as requested, otherwise an incomplete entry
may be returned, which causes "rdam res show cm_id" to return an error.

For example on a machine with two rdma devices with "rping -C 1 -v -s"
running background, the "rdma" command fails:
  $ rdma -V
  rdma utility, iproute2-5.19.0
  $ rdma res show cm_id
  link mlx5_0/- cm-idn 0 state LISTEN ps TCP pid 28056 comm rping src-addr 0.0.0.0:7174
  error: Protocol not available

While with this fix it succeeds:
  $ rdma res show cm_id
  link mlx5_0/- cm-idn 0 state LISTEN ps TCP pid 26395 comm rping src-addr 0.0.0.0:7174
  link mlx5_1/- cm-idn 0 state LISTEN ps TCP pid 26395 comm rping src-addr 0.0.0.0:7174

Fixes: 00313983cda6 ("RDMA/nldev: provide detailed CM_ID information")
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Link: https://lore.kernel.org/r/a08e898cdac5e28428eb749a99d9d981571b8ea7.1667810736.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00
Dongdong Zhang
620ab4d506 f2fs: fix normal discard process
[ Upstream commit b5f1a218ae5e4339130d6e733f0e63d623e09a2c ]

In the DPOLICY_BG mode, there is a conflict between
the two conditions "i + 1 < dpolicy->granularity" and
"i < DEFAULT_DISCARD_GRANULARITY". If i = 15, the first
condition is false, it will enter the second condition
and dispatch all small granularity discards in function
 __issue_discard_cmd_orderly. The restrictive effect
of the first condition to small discards will be
invalidated. These two conditions should align.

Fixes: 20ee4382322c ("f2fs: issue small discard by LBA order")
Signed-off-by: Dongdong Zhang <zhangdongdong1@oppo.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00
John Johansen
384e4d832e apparmor: Fix abi check to include v8 abi
[ Upstream commit 1b5a6198f5a9d0aa5497da0dc4bcd4fc166ee516 ]

The v8 abi is supported by the kernel but the userspace supported
version check does not allow for it. This was missed when v8 was added
due to a bug in the userspace compiler which was setting an older abi
version for v8 encoding (which is forward compatible except on the
network encoding). However it is possible to detect the network
encoding by checking the policydb network support which the code
does. The end result was that missing the abi flag worked until
userspace was fixed and began correctly checking for the v8 abi
version.

Fixes: 56974a6fcfef ("apparmor: add base infastructure for socket mediation")
Signed-off-by: John Johansen <john.johansen@canonical.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-01-18 11:30:21 +01:00