CVE-2026-97527: Linux kernel · scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 8.8 High · fixed in c1ee12eecbab9674fb73c9e00a93fac655d5a5dc : patch Linux kernel soon.
Data as of 26 Oct 2026, 20:13 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 27% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in c1ee12eecbab9674fb73c9e00a93fac655d5a5dc, b211d138cad86f749826d6132db6388eded992d8, 76da0c43c63eb0496649e372ac64466364d0fe7d +2
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 25 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 to a fixed release listed under Affected software.
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
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| LinuxLinux | Affected
| Fixed in– |
AI-suggested
A fix is available and has been applied in Linux kernel version 6.6 and related commits. Users should update to Linux kernel 6.6 or later where the per-fcport spinlock serialization is implemented to prevent concurrent list corruption. No additional mitigation is required beyond applying the official fix.
Description
CVE-2026-97527 is a high-severity vulnerability in the Linux kernel's qla2xxx SCSI driver. It involves improper serialization of the NVMe unsolicited context list (unsol_ctx_head) accessed concurrently without a dedicated lock. This can lead to list corruption due to concurrent modifications from multiple contexts. The issue is fixed by introducing a per-fcport spinlock to serialize list operations, preventing race conditions and ensuring data integrity.
References
- git.kernel.org/stable/c/6c71726cdfda93ae169a75c7b1697eb870303125 (opens in a new tab)
- git.kernel.org/stable/c/c1ee12eecbab9674fb73c9e00a93fac655d5a5dc (opens in a new tab)
- git.kernel.org/stable/c/b211d138cad86f749826d6132db6388eded992d8 (opens in a new tab)
- git.kernel.org/stable/c/4d8ad6bc8cc5eff1870cef00a0d611f38f8b6bd0 (opens in a new tab)
- git.kernel.org/stable/c/76da0c43c63eb0496649e372ac64466364d0fe7d (opens in a new tab)