CVE-2023-53091None▾ SunlitIn 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 u…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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.
Linux >= 345c0dbf3a30872d9b204db96b5857cd00808cae < 499fef2030fb754c68b1c7cb3a799a3bc1d0d925Linux >= 345c0dbf3a30872d9b204db96b5857cd00808cae < 70e66bdeae4d0f7c8e87762f425b68aedd5e8955Linux >= 345c0dbf3a30872d9b204db96b5857cd00808cae < ee0c5277d4fab920bd31345c49e193ecede9ecefLinux >= 345c0dbf3a30872d9b204db96b5857cd00808cae < 3039d8b8692408438a618fac2776b629852663c3Linux 51890201da4d654f6ca131bc45a0e892bb10de1dLinux 7eff961ca9f364be255d279346517ba0158ec8e3Linux a9855260fe8d8680bf8c4f0d8303b696c861e99bLinux 795762468125a6412c089651e74f780bee154118Linux 2fd4629de51974002f4e9cf1a35a1926dd6c9d99Linux >= 3.16.85 < 3.17Linux >= 4.4.221 < 4.5Linux >= 4.9.221 < 4.10Linux >= 4.14.178 < 4.15Linux >= 4.19.73 < 4.20Linux 5.2Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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