vulnerability

Huawei EulerOS: CVE-2024-43828: kernel security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Aug 17, 2024
Added
Oct 9, 2024
Modified
Aug 13, 2025

Description

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

ext4: fix infinite loop when replaying fast_commit

When doing fast_commit replay an infinite loop may occur due to an
uninitialized extent_status struct. ext4_ext_determine_insert_hole() does
not detect the replay and calls ext4_es_find_extent_range(), which will
return immediately without initializing the 'es' variable.

Because 'es' contains garbage, an integer overflow may happen causing an
infinite loop in this function, easily reproducible using fstest generic/039.

This commit fixes this issue by unconditionally initializing the structure
in function ext4_es_find_extent_range().

Thanks to Zhang Yi, for figuring out the real problem!

Solutions

huawei-euleros-2_0_sp11-upgrade-bpftoolhuawei-euleros-2_0_sp11-upgrade-kernelhuawei-euleros-2_0_sp11-upgrade-kernel-abi-stablelistshuawei-euleros-2_0_sp11-upgrade-kernel-toolshuawei-euleros-2_0_sp11-upgrade-kernel-tools-libshuawei-euleros-2_0_sp11-upgrade-python3-perf
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