Riskcovery

CVE-2026-80813

nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()

State
Published
Severity
Not scored
Published
Sep 4, 2026
Updated
Oct 19, 2026
Reserved
Aug 26, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()

When a host issues an Identify command with CNS 07h (Active Namespace ID List for a specific I/O Command Set), nvmet_execute_identify_nslist() is called with match_css set. The command-set filter dereferences req->ns, but this handler never calls nvmet_req_find_ns(), so req->ns is always NULL (nvmet_req_init() resets it to NULL). As soon as an enabled namespace with an NSID greater than the requested value exists, req->ns->csi dereferences a NULL pointer and oopses.

Besides the crash, the comparison is logically wrong: to filter the list by command set it must test the command set of the namespace being iterated, not a single fixed value. Use the loop variable ns->csi.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 61c9967cd63448292a64f9ee9aeb6e2053e3a624 to before 61dc1a37e04d4003a19095f54883358330034a39Affected
  • 61c9967cd63448292a64f9ee9aeb6e2053e3a624 to before 2bc1e33ff6a558c8ceef7c0077f3ef70a15fcba2Affected
  • 61c9967cd63448292a64f9ee9aeb6e2053e3a624 to before 123d664ac98d6f3464462ad4a530474b91ba9890Affected
  • 61c9967cd63448292a64f9ee9aeb6e2053e3a624 to before 79aba4c9403419d822972d2851f2a96a2c0531cfAffected
LinuxLinux
  • 6.13Affected
  • before 6.13Not affected
  • 6.18.47 through 6.18.*Not affected
  • 7.1.11 through 7.1.*Not affected
  • 7.2.1 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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