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Commit 9ff4a5ef authored by Herbert Xu's avatar Herbert Xu Committed by Ye Bin
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crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak

mainline inclusion
from mainline-v6.10-rc1
commit d3b17c6d9dddc2db3670bc9be628b122416a3d26
category: bugfix
bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAC3MY
CVE: CVE-2024-39493

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d3b17c6d9dddc2db3670bc9be628b122416a3d26



---------------------------

Using completion_done to determine whether the caller has gone
away only works after a complete call.  Furthermore it's still
possible that the caller has not yet called wait_for_completion,
resulting in another potential UAF.

Fix this by making the caller use cancel_work_sync and then freeing
the memory safely.

Fixes: 7d42e097607c ("crypto: qat - resolve race condition during AER recovery")
Cc: <stable@vger.kernel.org> #6.8+
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: default avatarGiovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>

Conflicts:
        drivers/crypto/qat/qat_common/adf_aer.c
	drivers/crypto/intel/qat/qat_common/adf_aer.c
[Fix context diff]
Signed-off-by: default avatarYe Bin <yebin10@huawei.com>
parent 8585cfc0
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