Tetsuo Handa b2192cfeba misc: vmw_vmci: explicitly initialize vmci_datagram payload ... KMSAN complains that vmci_check_host_caps() left the payload part of check_msg uninitialized. ===================================================== BUG: KMSAN: uninit-value in kmsan_check_memory+0xd/0x10 CPU: 1 PID: 1 Comm: swapper/0 Tainted: G B 5.11.0-rc7+ #4 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 02/27/2020 Call Trace: dump_stack+0x21c/0x280 kmsan_report+0xfb/0x1e0 kmsan_internal_check_memory+0x202/0x520 kmsan_check_memory+0xd/0x10 iowrite8_rep+0x86/0x380 vmci_guest_probe_device+0xf0b/0x1e70 pci_device_probe+0xab3/0xe70 really_probe+0xd16/0x24d0 driver_probe_device+0x29d/0x3a0 device_driver_attach+0x25a/0x490 __driver_attach+0x78c/0x840 bus_for_each_dev+0x210/0x340 driver_attach+0x89/0xb0 bus_add_driver+0x677/0xc40 driver_register+0x485/0x8e0 __pci_register_driver+0x1ff/0x350 vmci_guest_init+0x3e/0x41 vmci_drv_init+0x1d6/0x43f do_one_initcall+0x39c/0x9a0 do_initcall_level+0x1d7/0x259 do_initcalls+0x127/0x1cb do_basic_setup+0x33/0x36 kernel_init_freeable+0x29a/0x3ed kernel_init+0x1f/0x840 ret_from_fork+0x1f/0x30 Uninit was created at: kmsan_internal_poison_shadow+0x5c/0xf0 kmsan_slab_alloc+0x8d/0xe0 kmem_cache_alloc+0x84f/0xe30 vmci_guest_probe_device+0xd11/0x1e70 pci_device_probe+0xab3/0xe70 really_probe+0xd16/0x24d0 driver_probe_device+0x29d/0x3a0 device_driver_attach+0x25a/0x490 __driver_attach+0x78c/0x840 bus_for_each_dev+0x210/0x340 driver_attach+0x89/0xb0 bus_add_driver+0x677/0xc40 driver_register+0x485/0x8e0 __pci_register_driver+0x1ff/0x350 vmci_guest_init+0x3e/0x41 vmci_drv_init+0x1d6/0x43f do_one_initcall+0x39c/0x9a0 do_initcall_level+0x1d7/0x259 do_initcalls+0x127/0x1cb do_basic_setup+0x33/0x36 kernel_init_freeable+0x29a/0x3ed kernel_init+0x1f/0x840 ret_from_fork+0x1f/0x30 Bytes 28-31 of 36 are uninitialized Memory access of size 36 starts at ffff8881675e5f00 ===================================================== Fixes: 1f16643991 ("VMCI: guest side driver implementation.") Cc: <stable@vger.kernel.org> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Link: https://lore.kernel.org/r/20210402121742.3917-2-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-04-05 12:29:31 +02:00
..
Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
vmci_context.c	misc: vmw_vmci: fix kernel info-leak by initializing dbells in vmci_ctx_get_chkpt_doorbells()	2020-12-09 19:36:26 +01:00
vmci_context.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_datagram.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_datagram.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_doorbell.c	misc: vmw_vmci: explicitly initialize vmci_notify_bm_set_msg struct	2021-04-05 12:29:31 +02:00
vmci_doorbell.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_driver.c	vsock/vmci: make vmci_vsock_cb_host_called static	2019-11-20 12:39:29 -08:00
vmci_driver.h	vsock/vmci: register vmci_transport only when VMCI guest/host are active	2019-11-14 18:12:18 -08:00
vmci_event.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_event.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_guest.c	misc: vmw_vmci: explicitly initialize vmci_datagram payload	2021-04-05 12:29:31 +02:00
vmci_handle_array.c	VMCI: Fix integer overflow in VMCI handle arrays	2019-06-21 16:04:05 +02:00
vmci_handle_array.h	VMCI: Fix integer overflow in VMCI handle arrays	2019-06-21 16:04:05 +02:00
vmci_host.c	vmci_host: print unexpanded names of ioctl requests in debug messages	2021-03-24 08:26:31 +01:00
vmci_queue_pair.c	drivers/misc/vmw_vmci: restrict too big queue size in qp_host_alloc_queue	2021-02-09 12:22:32 +01:00
vmci_queue_pair.h	misc/vmw_vmci: fix typo	2021-01-26 19:18:01 +01:00
vmci_resource.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_resource.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_route.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00
vmci_route.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 321	2019-06-05 17:37:05 +02:00