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| author |   Xiao Ni <xni@redhat.com> | 2021-05-28 14:16:38 +0800 |
|---|---|---|
| committer |   Song Liu <song@kernel.org> | 2021-06-10 19:40:14 -0700 |
| commit | 9be148e408df7d361ec5afd6299b7736ff3928b0 (patch) | |
| tree | e6b21a9198837ae3e9d8a48adbc1f6126a9522d6 /crypto/tea.c | |
| parent | bcache: avoid oversized read request in cache missing code path (diff) | |
| download | linux-dev-9be148e408df7d361ec5afd6299b7736ff3928b0.tar.xz linux-dev-9be148e408df7d361ec5afd6299b7736ff3928b0.zip | |
async_xor: check src_offs is not NULL before updating it
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>
Diffstat (limited to 'crypto/tea.c')
0 files changed, 0 insertions, 0 deletions