Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 345c0dbf3a30872d9b204db96b5857cd00808cae before 499fef2030fb754c68b1c7cb3a799a3bc1d0d925; affected 345c0dbf3a30872d9b204db96b5857cd00808cae before 70e66bdeae4d0f7c8e87762f425b68aedd5e8955; affected 345c0dbf3a30872d9b204db96b5857cd00808cae before ee0c5277d4fab920bd31345c49e193ecede9ecef; affected 345c0dbf3a30872d9b204db96b5857cd00808cae before 3039d8b8692408438a618fac2776b629852663c3; affected 51890201da4d654f6ca131bc45a0e892bb10de1d; affected 7eff961ca9f364be255d279346517ba0158ec8e3; affected a9855260fe8d8680bf8c4f0d8303b696c861e99b; affected 795762468125a6412c089651e74f780bee154118; affected 2fd4629de51974002f4e9cf1a35a1926dd6c9d99; affected 3.16.85 before 3.17; affected 4.4.221 before 4.5; affected 4.9.221 before 4.10; affected 4.14.178 before 4.15; affected 4.19.73 before 4.20 |
| Linux / Linux | affected 5.2; unaffected 0 before 5.2; unaffected 5.15.104 through 5.15.*; unaffected 6.1.21 through 6.1.*; unaffected 6.2.8 through 6.2.*; unaffected 6.3 through * |
CWE
No CWE identifiers supplied.