vulnerability

Huawei EulerOS: CVE-2023-52983: kernel security update

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Aug 9, 2025
Added
Aug 13, 2025
Modified
Aug 13, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

block, bfq: fix uaf for bfqq in bic_set_bfqq()

After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"),
bic->bfqq will be accessed in bic_set_bfqq(), however, in some context
bic->bfqq will be freed, and bic_set_bfqq() is called with the freed
bic->bfqq.

Fix the problem by always freeing bfqq after bic_set_bfqq().

Solutions

huawei-euleros-2_0_sp13-upgrade-bpftoolhuawei-euleros-2_0_sp13-upgrade-kernelhuawei-euleros-2_0_sp13-upgrade-kernel-abi-stablelistshuawei-euleros-2_0_sp13-upgrade-kernel-toolshuawei-euleros-2_0_sp13-upgrade-kernel-tools-libshuawei-euleros-2_0_sp13-upgrade-python3-perf
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