CVE-2026-93257: Linux kernel · block: handle nogenerate/noverify properly in fs-integrity
Affects Linux kernelSource CVE Database V5
Not known to be exploited : upgrade to b681c740e6d645f7d7477e9208db57917c6c0fbc or 3bf9a21e7bccfd8c35b440efd114c61cc9838a41 when convenient.
Data as of 26 Oct 2026, 17:16 UTC
Rated Medium by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in b681c740e6d645f7d7477e9208db57917c6c0fbc, 3bf9a21e7bccfd8c35b440efd114c61cc9838a41
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Linux kernel to b681c740e6d645f7d7477e9208db57917c6c0fbc or 3bf9a21e7bccfd8c35b440efd114c61cc9838a41.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix for this vulnerability is available in the Linux kernel versions identified by commits b681c740e6d645f7d7477e9208db57917c6c0fbc and 3bf9a21e7bccfd8c35b440efd114c61cc9838a41. Users and administrators should update to these fixed versions or later to remediate the issue.
Description
A vulnerability in the Linux kernel's block layer related to fs-integrity handling has been fixed. The issue involved improper handling of nogenerate/noverify flags, which could cause incorrect metadata generation and crashes during verification. The fix ensures that BIP_CHECK flags are properly checked before generating or verifying PI information, aligning behavior with the block layer's auto-generated metadata.