Xiao Ni bf240fee5b async_xor: check src_offs is not NULL before updating it ... commit 9be148e408df7d361ec5afd6299b7736ff3928b0 upstream. When PAGE_SIZE is greater than 4kB, multiple stripes may share the same page. Thus, src_offs is added to async_xor_offs() with array of offsets. However, async_xor() passes NULL src_offs to async_xor_offs(). In such case, src_offs should not be updated. Add a check before the update. Fixes: ceaf2966ab08(async_xor: increase src_offs when dropping destination page) Cc: stable@vger.kernel.org # v5.10+ Reported-by: Oleksandr Shchirskyi <oleksandr.shchirskyi@linux.intel.com> Tested-by: Oleksandr Shchirskyi <oleksandr.shchirskyi@intel.com> Signed-off-by: Xiao Ni <xni@redhat.com> Signed-off-by: Song Liu <song@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-06-16 12:01:40 +02:00
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async_memcpy.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335	2019-06-05 17:37:06 +02:00
async_pq.c	md/raid6: let syndrome computor support different page offset	2020-09-24 16:44:44 -07:00
async_raid6_recov.c	md/raid6: let async recovery function support different page offset	2020-09-24 16:44:44 -07:00
async_tx.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335	2019-06-05 17:37:06 +02:00
async_xor.c	async_xor: check src_offs is not NULL before updating it	2021-06-16 12:01:40 +02:00
Kconfig	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
raid6test.c	md/raid6: let async recovery function support different page offset	2020-09-24 16:44:44 -07:00