CVE-2026-89601
ext2: Fix lost inode updates for IS_SYNC inodes
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: ext2: Fix lost inode updates for IS_SYNC inodes ext2_setsize() and ext2_xattr_set2() had a construct like: if (IS_SYNC(inode)) { sync_inode_metadata(inode, 1); } else { mark_inode_dirty(inode); } which leads to lost inode updates for IS_SYNC inodes because sync_inode_metadata() does anything only if the inode is already dirty and hence inode updates may be simply lost. Fix the problem by unconditionally marking the inode dirty and *then* call sync_inode_metadata().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 11, 2026 |
| Last Updated | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 55e66d84b5272c425b324a2b247cdacacf1e10b9 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b879565effd88fc119c2efea3f3868a9997ed9ba 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e54de654423bee98d1ba50379b09daf97c7854a6 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5481766125041e71662f2e32ee0e91ad5f4d07f4 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5efb3350230fef831167740e69e6db2861101186 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 356984d1a5c32e94810cbb6c8dc7d8ff2d4d919a
Linux / Linux
2.6.12
References
git.kernel.org: https://git.kernel.org/stable/c/55e66d84b5272c425b324a2b247cdacacf1e10b9 git.kernel.org: https://git.kernel.org/stable/c/b879565effd88fc119c2efea3f3868a9997ed9ba git.kernel.org: https://git.kernel.org/stable/c/e54de654423bee98d1ba50379b09daf97c7854a6 git.kernel.org: https://git.kernel.org/stable/c/5481766125041e71662f2e32ee0e91ad5f4d07f4 git.kernel.org: https://git.kernel.org/stable/c/5efb3350230fef831167740e69e6db2861101186 git.kernel.org: https://git.kernel.org/stable/c/356984d1a5c32e94810cbb6c8dc7d8ff2d4d919a