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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
345c0dbf3a30872d9b204db96b5857cd00808cae to < 499fef2030fb754c68b1c7cb3a799a3bc1d0d925affected345c0dbf3a30872d9b204db96b5857cd00808cae to < 70e66bdeae4d0f7c8e87762f425b68aedd5e8955affected345c0dbf3a30872d9b204db96b5857cd00808cae to < ee0c5277d4fab920bd31345c49e193ecede9ecefaffected345c0dbf3a30872d9b204db96b5857cd00808cae to < 3039d8b8692408438a618fac2776b629852663c3affected51890201da4d654f6ca131bc45a0e892bb10de1daffected7eff961ca9f364be255d279346517ba0158ec8e3affecteda9855260fe8d8680bf8c4f0d8303b696c861e99baffected795762468125a6412c089651e74f780bee154118affected2fd4629de51974002f4e9cf1a35a1926dd6c9d99affected3.16.85 to < 3.17affected4.4.221 to < 4.5affected4.9.221 to < 4.10affected4.14.178 to < 4.15affected4.19.73 to < 4.20affected
Linux Linux
Default version status: affected
5.2affected0 to < 5.2unaffected5.15.104 to ≤ 5.15.*unaffected6.1.21 to ≤ 6.1.*unaffected6.2.8 to ≤ 6.2.*unaffected6.3 to ≤ *unaffected