CVE-2026-97527scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock
- 8.8HighCVSS base score
- 0.34%Exploitation in 30 daysEPSS · top 72% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock The fcport->unsol_ctx_head list is modified from several contexts without a common lock. Entries are added in qla2xxx_process_purls_iocb() from the response queue ISR (under the qpair qp_lock), while they are removed from qla2xxx_process_purls_pkt() (DPC/purex worker), qla_nvme_xmt_ls_rsp() (NVMe-FC transport callback) and qla_nvme_release_lsrsp_cmd_kref() (SRB completion). The qpair qp_lock cannot serialize this per-fcport list since multiqueue adapters add entries through different qpairs, so a concurrent add and delete (or two concurrent deletes) can corrupt the list pointers. Introduce a dedicated per-fcport spinlock, unsol_ctx_lock, initialized in qla2x00_alloc_fcport(), and take it around every list_add_tail()/list_del() on unsol_ctx_head. The add nests under the existing qp_lock; no delete path takes qp_lock, so the lock order is consistent and deadlock free.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 26 days later
· 26 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.8 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.34% · top 72% of all CVEs (15 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
- affected 875386b98857822b77ac7f95bdf367b70af5b78c – < 6c71726cdfda93ae169a75c7b1697eb870303125
- affected 875386b98857822b77ac7f95bdf367b70af5b78c – < c1ee12eecbab9674fb73c9e00a93fac655d5a5dc
- affected 875386b98857822b77ac7f95bdf367b70af5b78c – < b211d138cad86f749826d6132db6388eded992d8
- affected 875386b98857822b77ac7f95bdf367b70af5b78c – < 4d8ad6bc8cc5eff1870cef00a0d611f38f8b6bd0
- affected 875386b98857822b77ac7f95bdf367b70af5b78c – < 76da0c43c63eb0496649e372ac64466364d0fe7d
- affected 6.6
- unaffected < 6.6
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/6c71726cdfda93ae169a75c7b1697eb870303125 (opens in a new tab)
- https://git.kernel.org/stable/c/c1ee12eecbab9674fb73c9e00a93fac655d5a5dc (opens in a new tab)
- https://git.kernel.org/stable/c/b211d138cad86f749826d6132db6388eded992d8 (opens in a new tab)
- https://git.kernel.org/stable/c/4d8ad6bc8cc5eff1870cef00a0d611f38f8b6bd0 (opens in a new tab)
- https://git.kernel.org/stable/c/76da0c43c63eb0496649e372ac64466364d0fe7d (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86835 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-97527)Record last updated .