CVE-2026-98445: Linux kernel · xfs: don't let memory failures leak blocks and kill repairs
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in b15c79fca28060fd9c7e77f2c3ebc4ba023974e8 : patch Linux kernel soon.
Data as of 26 Oct 2026, 13:47 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 6% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in b15c79fca28060fd9c7e77f2c3ebc4ba023974e8, ab1c416d2377cdc16123ef521aac4da1c468c3d4, 3380151cf0ce8ad0c1d356fed51e4b69e1d28e50 +1
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 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 b15c79fca28060fd9c7e77f2c3ebc4ba023974e8, ab1c416d2377cdc16123ef521aac4da1c468c3d4, 3380151cf0ce8ad0c1d356fed51e4b69e1d28e50 or 0e0d3372a84029da1768c7a4c4601484af5b58a2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
This vulnerability has been fixed in specific Linux kernel commits identified by the fixedVersions hashes. Users should update to a Linux kernel version that includes these fixes to prevent the issue. Since this is a kernel-level fix, applying the updated kernel version is the recommended remediation.
Description
A vulnerability in the Linux kernel's XFS filesystem repair code could cause memory allocation failures to leak blocks and disrupt filesystem repairs. The issue arises because the code cannot both undo transactions and return errors properly, potentially leading to filesystem downtime. The fix involves changing the allocation method to avoid failure in a small memory reservation, preventing the problem.
References
- git.kernel.org/stable/c/3380151cf0ce8ad0c1d356fed51e4b69e1d28e50 (opens in a new tab)
- git.kernel.org/stable/c/b15c79fca28060fd9c7e77f2c3ebc4ba023974e8 (opens in a new tab)
- git.kernel.org/stable/c/0e0d3372a84029da1768c7a4c4601484af5b58a2 (opens in a new tab)
- git.kernel.org/stable/c/ab1c416d2377cdc16123ef521aac4da1c468c3d4 (opens in a new tab)