CVE-2026-97528: Linux kernel · scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error
Affects Linux kernelSource CVE Database V5
Not known to be exploited · CVSS 8.8 High · fixed in e46160a5d4fa59bf4d5f3412b6b5cb79edb967dd : patch Linux kernel soon.
Data as of 26 Oct 2026, 17:16 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 e46160a5d4fa59bf4d5f3412b6b5cb79edb967dd, cbbf1484496aac86038e67ac984949af58009d4b, c55d649a6cc246c3ccd5d118faea230c46b60f35 +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– |
Description
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error qla_nvme_xmt_ls_rsp() obtains uctx, which was linked into fcport->unsol_ctx_head by qla2xxx_process_purls_iocb() and is still linked when the NVMe transport calls back to transmit the LS response. On the error (out:) path the function frees uctx with kfree() but never removes it from the list. This leaves a freed node in fcport->unsol_ctx_head: the next list_add_tail() for that fcport writes through the freed node, and a subsequent list_del() can corrupt the list or panic. Unlink uctx with list_del() before kfree() on the error path, matching the other free sites in qla_nvme_release_lsrsp_cmd_kref() and qla2xxx_process_purls_pkt(). qla2x00_rel_sp() in the failure path only returns the SRB to its pool and does not invoke sp->put_fn, so the out: path is the sole free and uctx is always still linked there.
References
- git.kernel.org/stable/c/925a9129a514b7c3bc0a8af01e51868adbb9a83e (opens in a new tab)
- git.kernel.org/stable/c/cbbf1484496aac86038e67ac984949af58009d4b (opens in a new tab)
- git.kernel.org/stable/c/a95fc5f1c12bba1dbff72bd2611e7fad0758831b (opens in a new tab)
- git.kernel.org/stable/c/c55d649a6cc246c3ccd5d118faea230c46b60f35 (opens in a new tab)
- git.kernel.org/stable/c/e46160a5d4fa59bf4d5f3412b6b5cb79edb967dd (opens in a new tab)