by Kastro
Paper/Archive/CVE-2023-53116

CVE-2023-53116

Linux Linux — nvmet: avoid potential UAF in nvmet_req_complete()

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
38
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 45.2.452 × 209.0No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < e5d99b29012bbf0e86929403209723b2806500c1e5d99b29012bbf0e86929403209723b2806500c1CNA
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < fafcb4b26393870c45462f9af6a48e581dbbcf7efafcb4b26393870c45462f9af6a48e581dbbcf7eCNA
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < 04c394208831d5e0d5cfee46722eb0f033cd408304c394208831d5e0d5cfee46722eb0f033cd4083CNA
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < a6317235da8aa7cb97529ebc8121cc2a4c4c437aa6317235da8aa7cb97529ebc8121cc2a4c4c437aCNA
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < f1d5888a5efe345b63c430b256e95acb0a475642f1d5888a5efe345b63c430b256e95acb0a475642CNA
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < bcd535f07c58342302a2cd2bdd8894fe0872c8a9bcd535f07c58342302a2cd2bdd8894fe0872c8a9CNA
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < 8ed9813871038b25a934b21ab76b5b7dbf44fc3a8ed9813871038b25a934b21ab76b5b7dbf44fc3aCNA
Linuxa07b4970f464f13640e28e16dad6cfa33647cc99 – < 6173a77b7e9d3e202bdb9897b23f2a8afe7bf2866173a77b7e9d3e202bdb9897b23f2a8afe7bf286CNA
Linux4.84.14.311CNA

Scores by source

Linux (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgit.kernel.org/stable/c/e5d99b29012bbf0e86929403209723b2806500c1refgit.kernel.org/stable/c/fafcb4b26393870c45462f9af6a48e581dbbcf7erefgit.kernel.org/stable/c/04c394208831d5e0d5cfee46722eb0f033cd4083refgit.kernel.org/stable/c/a6317235da8aa7cb97529ebc8121cc2a4c4c437arefgit.kernel.org/stable/c/f1d5888a5efe345b63c430b256e95acb0a475642refgit.kernel.org/stable/c/bcd535f07c58342302a2cd2bdd8894fe0872c8a9refgit.kernel.org/stable/c/8ed9813871038b25a934b21ab76b5b7dbf44fc3arefgit.kernel.org/stable/c/6173a77b7e9d3e202bdb9897b23f2a8afe7bf286