CVE-2023-53091

ext4: update s_journal_inum if it changes after journal replay

State: Published
Severity: Not scored
Published: May 2, 2025
Updated: May 23, 2026
Reserved: May 2, 2025

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	345c0dbf3a30872d9b204db96b5857cd00808cae to before 499fef2030fb754c68b1c7cb3a799a3bc1d0d925Affected 345c0dbf3a30872d9b204db96b5857cd00808cae to before 70e66bdeae4d0f7c8e87762f425b68aedd5e8955Affected 345c0dbf3a30872d9b204db96b5857cd00808cae to before ee0c5277d4fab920bd31345c49e193ecede9ecefAffected 345c0dbf3a30872d9b204db96b5857cd00808cae to before 3039d8b8692408438a618fac2776b629852663c3Affected 51890201da4d654f6ca131bc45a0e892bb10de1dAffected 7eff961ca9f364be255d279346517ba0158ec8e3Affected a9855260fe8d8680bf8c4f0d8303b696c861e99bAffected 795762468125a6412c089651e74f780bee154118Affected 2fd4629de51974002f4e9cf1a35a1926dd6c9d99Affected 3.16.85 to before 3.17Affected 4.4.221 to before 4.5Affected 4.9.221 to before 4.10Affected 4.14.178 to before 4.15Affected 4.19.73 to before 4.20Affected
LinuxLinux	5.2Affected before 5.2Not affected 5.15.104 through 5.15.Not affected 6.1.21 through 6.1.Not affected 6.2.8 through 6.2.*Not affected 6.3 and laterNot affected

Product

Versions

LinuxLinux

345c0dbf3a30872d9b204db96b5857cd00808cae to before 499fef2030fb754c68b1c7cb3a799a3bc1d0d925Affected
345c0dbf3a30872d9b204db96b5857cd00808cae to before 70e66bdeae4d0f7c8e87762f425b68aedd5e8955Affected
345c0dbf3a30872d9b204db96b5857cd00808cae to before ee0c5277d4fab920bd31345c49e193ecede9ecefAffected
345c0dbf3a30872d9b204db96b5857cd00808cae to before 3039d8b8692408438a618fac2776b629852663c3Affected
51890201da4d654f6ca131bc45a0e892bb10de1dAffected
7eff961ca9f364be255d279346517ba0158ec8e3Affected
a9855260fe8d8680bf8c4f0d8303b696c861e99bAffected
795762468125a6412c089651e74f780bee154118Affected
2fd4629de51974002f4e9cf1a35a1926dd6c9d99Affected
3.16.85 to before 3.17Affected
4.4.221 to before 4.5Affected
4.9.221 to before 4.10Affected
4.14.178 to before 4.15Affected
4.19.73 to before 4.20Affected

LinuxLinux

5.2Affected
before 5.2Not affected
5.15.104 through 5.15.*Not affected
6.1.21 through 6.1.*Not affected
6.2.8 through 6.2.*Not affected
6.3 and laterNot affected

References

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