{"id":"CVE-2026-80813","title":"nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()\n\nWhen a host issues an Identify command with CNS 07h (Active Namespace ID\nList for a specific I/O…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 61dc1a37e04d4003a19095f54883358330034a39","Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 2bc1e33ff6a558c8ceef7c0077f3ef70a15fcba2","Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 123d664ac98d6f3464462ad4a530474b91ba9890","Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 79aba4c9403419d822972d2851f2a96a2c0531cf","Linux 6.13"],"published":"2026-09-04","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:44:07.048Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80813","references":[{"url":"https://git.kernel.org/stable/c/61dc1a37e04d4003a19095f54883358330034a39"},{"url":"https://git.kernel.org/stable/c/2bc1e33ff6a558c8ceef7c0077f3ef70a15fcba2"},{"url":"https://git.kernel.org/stable/c/123d664ac98d6f3464462ad4a530474b91ba9890"},{"url":"https://git.kernel.org/stable/c/79aba4c9403419d822972d2851f2a96a2c0531cf"}],"tags":["cve.org"],"epss":0.00209,"epssPercentile":0.10313,"ingestedAt":"2026-10-19T09:16:01.507Z","slug":"CVE-2026-80813","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()\n\nWhen a host issues an Identify command with CNS 07h (Active Namespace ID\nList for a specific I/O Command Set), nvmet_execute_identify_nslist() is\ncalled with match_css set. The command-set filter dereferences req->ns,\nbut this handler never calls nvmet_req_find_ns(), so req->ns is always\nNULL (nvmet_req_init() resets it to NULL). As soon as an enabled\nnamespace with an NSID greater than the requested value exists,\nreq->ns->csi dereferences a NULL pointer and oopses.\n\nBesides the crash, the comparison is logically wrong: to filter the list\nby command set it must test the command set of the namespace being\niterated, not a single fixed value. Use the loop variable ns->csi.\n\n## Affected\n\n- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 61dc1a37e04d4003a19095f54883358330034a39`\n- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 2bc1e33ff6a558c8ceef7c0077f3ef70a15fcba2`\n- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 123d664ac98d6f3464462ad4a530474b91ba9890`\n- `Linux >= 61c9967cd63448292a64f9ee9aeb6e2053e3a624 < 79aba4c9403419d822972d2851f2a96a2c0531cf`\n- `Linux 6.13`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}