CVE-2023-53091
ext4: update s_journal_inum if it changes after journal replay
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ext4: update s_journal_inum if it changes after journal replay When mounting a crafted ext4 image, s_journal_inum may change after journal replay, which is obviously unreasonable because we have successfully loaded and replayed the journal through the old s_journal_inum. And the new s_journal_inum bypasses some of the checks in ext4_get_journal(), which may trigger a null pointer dereference problem. So if s_journal_inum changes after the journal replay, we ignore the change, and rewrite the current journal_inum to the superblock.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 2, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
345c0dbf3a30872d9b204db96b5857cd00808cae < 499fef2030fb754c68b1c7cb3a799a3bc1d0d925 345c0dbf3a30872d9b204db96b5857cd00808cae < 70e66bdeae4d0f7c8e87762f425b68aedd5e8955 345c0dbf3a30872d9b204db96b5857cd00808cae < ee0c5277d4fab920bd31345c49e193ecede9ecef 345c0dbf3a30872d9b204db96b5857cd00808cae < 3039d8b8692408438a618fac2776b629852663c3 51890201da4d654f6ca131bc45a0e892bb10de1d 7eff961ca9f364be255d279346517ba0158ec8e3 a9855260fe8d8680bf8c4f0d8303b696c861e99b 795762468125a6412c089651e74f780bee154118 2fd4629de51974002f4e9cf1a35a1926dd6c9d99
Linux / Linux
5.2
References
git.kernel.org: https://git.kernel.org/stable/c/499fef2030fb754c68b1c7cb3a799a3bc1d0d925 git.kernel.org: https://git.kernel.org/stable/c/70e66bdeae4d0f7c8e87762f425b68aedd5e8955 git.kernel.org: https://git.kernel.org/stable/c/ee0c5277d4fab920bd31345c49e193ecede9ecef git.kernel.org: https://git.kernel.org/stable/c/3039d8b8692408438a618fac2776b629852663c3