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linux/drivers/dma-buf
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Pavel Sakharov 156c226cbb dma-buf: Fix NULL pointer dereference in sanitycheck() 
[ Upstream commit 2295bd846765c766701e666ed2e4b35396be25e6 ]

If due to a memory allocation failure mock_chain() returns NULL, it is
passed to dma_fence_enable_sw_signaling() resulting in NULL pointer
dereference there.

Call dma_fence_enable_sw_signaling() only if mock_chain() succeeds.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: d62c43a953ce ("dma-buf: Enable signaling on fence for selftests")
Signed-off-by: Pavel Sakharov <p.sakharov@ispras.ru>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240319231527.1821372-1-p.sakharov@ispras.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-04-10 16:35:40 +02:00
..
heaps
dma-buf/heaps: Don't assert held reservation lock for dma-buf mmapping
2023-06-21 20:22:20 +03:00
dma-buf-sysfs-stats.c
dma-buf: Fix the typo in DMA-BUF statistics doc
2023-07-27 09:43:33 +02:00
dma-buf-sysfs-stats.h
dma-buf: fix dma_buf_export init order v2
2022-12-13 08:31:45 +01:00
dma-buf.c
dma-buf: Change locking policy for mmap()
2023-06-21 20:22:20 +03:00
dma-fence-array.c
dma-buf/fence-array: Add fence deadline support
2023-03-25 10:55:07 -07:00
dma-fence-chain.c
dma-buf/fence-chain: Add fence deadline support
2023-03-28 13:38:52 -07:00
dma-fence-unwrap.c
dma-buf: add dma_fence_timestamp helper
2023-10-05 11:05:58 +02:00
dma-fence.c
dma-buf: fix an error pointer vs NULL bug
2023-07-06 19:50:23 +05:30
dma-heap.c
driver core: class: remove module * from class_create()
2023-03-17 15:16:33 +01:00
dma-resv.c
dma-buf: fix check in dma_resv_add_fence
2023-12-08 08:52:19 +01:00
Kconfig
dma-buf: deprecate DMABUF_SYSFS_STATS
2022-06-23 10:51:43 +02:00
Makefile
dma-buf: cleanup dma_fence_unwrap implementation
2022-05-30 14:16:32 +02:00
selftest.c
…
selftest.h
…
selftests.h
dma-buf: add dma_fence_unwrap v2
2022-03-25 14:18:28 +01:00
st-dma-fence-chain.c
dma-buf: Fix NULL pointer dereference in sanitycheck()
2024-04-10 16:35:40 +02:00
st-dma-fence-unwrap.c
dma-buf: Enable signaling on fence for selftests
2022-09-16 15:53:25 +02:00
st-dma-fence.c
dma-buf: Enable signaling on fence for selftests
2022-09-16 15:53:25 +02:00
st-dma-resv.c
dma-buf: Enable signaling on fence for selftests
2022-09-16 15:53:25 +02:00
sw_sync.c
dma-buf/sw_sync: Avoid recursive lock during fence signal
2023-08-23 10:22:49 +02:00
sync_debug.c
…
sync_debug.h
…
sync_file.c
dma-buf: add dma_fence_timestamp helper
2023-10-05 11:05:58 +02:00
sync_trace.h
…
udmabuf.c
drm-misc-next for v6.6:
2023-07-17 15:37:57 +02:00