CVE-2023-53116nvmet: avoid potential UAF in nvmet_req_complete()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: nvmet: avoid potential UAF in nvmet_req_complete() An nvme target ->queue_response() operation implementation may free the request passed as argument. Such implementation potentially could result in a use after free of the request pointer when percpu_ref_put() is called in nvmet_req_complete(). Avoid such problem by using a local variable to save the sq pointer before calling __nvmet_req_complete(), thus avoiding dereferencing the req pointer after that function call.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from a07b4970f464f13640e28e16dad6cfa33647cc99 before e5d99b29012bbf0e86929403209723b2806500c1; from a07b4970f464f13640e28e16dad6cfa33647cc99 before fafcb4b26393870c45462f9af6a48e581dbbcf7e; from a07b4970f464f13640e28e16dad6cfa33647cc99 before 04c394208831d5e0d5cfee46722eb0f033cd4083; from a07b4970f464f13640e28e16dad6cfa33647cc99 before a6317235da8aa7cb97529ebc8121cc2a4c4c437a; from a07b4970f464f13640e28e16dad6cfa33647cc99 before f1d5888a5efe345b63c430b256e95acb0a475642; from a07b4970f464f13640e28e16dad6cfa33647cc99 before bcd535f07c58342302a2cd2bdd8894fe0872c8a9; from a07b4970f464f13640e28e16dad6cfa33647cc99 before 8ed9813871038b25a934b21ab76b5b7dbf44fc3a; from a07b4970f464f13640e28e16dad6cfa33647cc99 before 6173a77b7e9d3e202bdb9897b23f2a8afe7bf286 | CNA record |
linux linux_kernel linux:linux_kernel | from 4.8 before 4.14.311; from 4.15 before 4.19.279; from 4.20 before 5.4.238; from 5.5 before 5.10.176; from 5.11 before 5.15.104; from 5.16 before 6.1.21; from 6.2 before 6.2.8; 6.3; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/e5d99b29012bbf0e86929403209723b2806500c1patch
- https://git.kernel.org/stable/c/fafcb4b26393870c45462f9af6a48e581dbbcf7epatch
- https://git.kernel.org/stable/c/04c394208831d5e0d5cfee46722eb0f033cd4083patch
- https://git.kernel.org/stable/c/a6317235da8aa7cb97529ebc8121cc2a4c4c437apatch
- https://git.kernel.org/stable/c/f1d5888a5efe345b63c430b256e95acb0a475642patch
- https://git.kernel.org/stable/c/bcd535f07c58342302a2cd2bdd8894fe0872c8a9patch
- https://git.kernel.org/stable/c/8ed9813871038b25a934b21ab76b5b7dbf44fc3apatch
- https://git.kernel.org/stable/c/6173a77b7e9d3e202bdb9897b23f2a8afe7bf286patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.