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().

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 5efb3350230fef831167740e69e6db2861101186
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 356984d1a5c32e94810cbb6c8dc7d8ff2d4d919a
0 affected < 7.2.4
Linux Linux affected
Version Status Constraints
7.2.4 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/356984d1a5c32e94810cbb6c8dc7d8ff2d4d919a cve-icon cve-icon cve-icon
https://git.kernel.org/stable/c/5efb3350230fef831167740e69e6db2861101186 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-89601 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-89601 cve-icon
History

Sat, 12 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-821
References
Metrics threat_severity

None

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L'}

threat_severity

Moderate

Fri, 11 Sep 2026 23:45:00 +0000

Type Values Removed Values Added
Description 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().
Title ext2: Fix lost inode updates for IS_SYNC inodes
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-11T19:45:04.667Z

Reserved: 2026-09-11T19:38:34.732Z

Link: CVE-2026-89601

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-11T20:19:44.993

Modified: 2026-09-11T20:19:44.993

Link: CVE-2026-89601

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-11T19:45:04Z

Links: CVE-2026-89601 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-12T04:00:07Z

Weaknesses