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linux/drivers/pcmcia
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Armin Wolf 04bb8af40a pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db() 
[ Upstream commit c85fd9422fe0f5d667305efb27f56d09eab120b0 ]

When nonstatic_release_resource_db() frees all resources associated
with an PCMCIA socket, it forgets to free socket_data too, causing
a memory leak observable with kmemleak:

unreferenced object 0xc28d1000 (size 64):
  comm "systemd-udevd", pid 297, jiffies 4294898478 (age 194.484s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 f0 85 0e c3 00 00 00 00  ................
    00 00 00 00 0c 10 8d c2 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffda4245>] __kmem_cache_alloc_node+0x2d7/0x4a0
    [<7e51f0c8>] kmalloc_trace+0x31/0xa4
    [<d52b4ca0>] nonstatic_init+0x24/0x1a4 [pcmcia_rsrc]
    [<a2f13e08>] pcmcia_register_socket+0x200/0x35c [pcmcia_core]
    [<a728be1b>] yenta_probe+0x4d8/0xa70 [yenta_socket]
    [<c48fac39>] pci_device_probe+0x99/0x194
    [<84b7c690>] really_probe+0x181/0x45c
    [<8060fe6e>] __driver_probe_device+0x75/0x1f4
    [<b9b76f43>] driver_probe_device+0x28/0xac
    [<648b766f>] __driver_attach+0xeb/0x1e4
    [<6e9659eb>] bus_for_each_dev+0x61/0xb4
    [<25a669f3>] driver_attach+0x1e/0x28
    [<d8671d6b>] bus_add_driver+0x102/0x20c
    [<df0d323c>] driver_register+0x5b/0x120
    [<942cd8a4>] __pci_register_driver+0x44/0x4c
    [<e536027e>] __UNIQUE_ID___addressable_cleanup_module188+0x1c/0xfffff000 [iTCO_vendor_support]

Fix this by freeing socket_data too.

Tested on a Acer Travelmate 4002WLMi by manually binding/unbinding
the yenta_cardbus driver (yenta_socket).

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Message-ID: <20230512184529.5094-1-W_Armin@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-08-26 15:26:45 +02:00
..
at91_cf.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
bcm63xx_pcmcia.c
drivers/pcmcia: Convert timers to use timer_setup()
2017-11-04 12:03:13 +01:00
bcm63xx_pcmcia.h
…
cardbus.c
pcmcia: include cs_internal.h for missing declarations
2019-11-22 07:03:04 +01:00
cirrus.h
…
cistpl.c
pcmcia: include <pcmcia/ds.h> for pcmcia_parse_tuple
2019-11-22 07:03:04 +01:00
cs_internal.h
pcmcia: make pccard_loop_tuple() static
2020-05-18 11:16:39 +02:00
cs.c
pcmcia: fix setting of kthread task states
2022-01-27 10:54:03 +01:00
db1xxx_ss.c
treewide: Use fallthrough pseudo-keyword
2020-08-23 17:36:59 -05:00
ds.c
dma-mapping: remove DMA_MASK_NONE
2020-09-25 06:12:15 +02:00
electra_cf.c
powerpc: add an ioremap_phb helper
2020-06-02 10:59:10 -07:00
i82092.c
pcmcia: i82092: fix a null pointer dereference bug
2021-08-12 13:22:16 +02:00
i82092aa.h
PCMCIA/i82092: delete enter/leave macro
2019-12-16 11:49:54 +01:00
i82365.c
drivers/pcmcia: Convert timers to use timer_setup()
2017-11-04 12:03:13 +01:00
i82365.h
…
Kconfig
pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boards
2022-06-14 18:32:30 +02:00
Makefile
pcmcia: add MAX1600 library
2018-12-04 22:37:38 +00:00
max1600.c
pcmcia: add MAX1600 library
2018-12-04 22:37:38 +00:00
max1600.h
pcmcia: add MAX1600 library
2018-12-04 22:37:38 +00:00
o2micro.h
…
omap_cf.c
pcmcia: omap: remove useless cast for driver.name
2020-03-14 14:32:02 +01:00
pcmcia_cis.c
pcmcia: make pccard_loop_tuple() static
2020-05-18 11:16:39 +02:00
pcmcia_resource.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pd6729.c
treewide: kzalloc() -> kcalloc()
2018-06-12 16:19:22 -07:00
pd6729.h
…
pxa2xx_balloon3.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_base.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 256
2019-06-05 17:30:27 +02:00
pxa2xx_base.h
…
pxa2xx_cm_x2xx.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_cm_x255.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_cm_x270.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_colibri.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_e740.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_hx4700.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_mainstone.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_palmld.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_palmtc.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_palmtx.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_sharpsl.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_stargate2.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_trizeps4.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
pxa2xx_viper.c
…
pxa2xx_vpac270.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
ricoh.h
pcmcia: Implement CLKRUN protocol disabling for Ricoh bridges
2018-10-01 12:17:03 +02:00
rsrc_iodyn.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
rsrc_mgr.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
rsrc_nonstatic.c
pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db()
2023-08-26 15:26:45 +02:00
sa11xx_base.c
…
sa11xx_base.h
…
sa1100_generic.c
ARM: sa1100/shannon: convert to generic CF sockets
2018-04-06 15:53:22 +01:00
sa1100_generic.h
ARM: sa1100/shannon: convert to generic CF sockets
2018-04-06 15:53:22 +01:00
sa1100_h3600.c
ARM: sa1100/h3xxx: switch h3xxx PCMCIA to use gpiod APIs
2018-03-24 14:17:09 +00:00
sa1100_simpad.c
pcmcia: remove some unused space characters
2020-03-31 18:48:22 +02:00
sa1111_badge4.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sa1111_generic.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
sa1111_generic.h
…
sa1111_jornada720.c
ARM: sa1100/jornada720: switch PCMCIA to gpiod APIs
2018-12-04 22:37:38 +00:00
sa1111_lubbock.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
sa1111_neponset.c
ARM: sa1100/neponset: switch PCMCIA to MAX1600 library and gpiod APIs
2018-12-04 22:37:38 +00:00
soc_common.c
gpiolib: Pass array info to get/set array functions
2018-09-13 11:16:54 +02:00
soc_common.h
pcmcia: soc_common.h: Replace zero-length array with flexible-array member
2020-03-28 07:52:13 +01:00
socket_sysfs.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
tcic.c
drivers/pcmcia: Convert timers to use timer_setup()
2017-11-04 12:03:13 +01:00
tcic.h
…
ti113x.h
…
topic.h
…
vg468.h
…
vrc4171_card.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
vrc4173_cardu.c
…
vrc4173_cardu.h
…
xxs1500_ss.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
yenta_socket.c
pcmcia: Use CardBus window names (PCI_CB_BRIDGE_IO_0_WINDOW etc) when freeing
2020-05-21 15:53:07 -05:00
yenta_socket.h
…