CVE-2023-53116
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.52%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.52% probability · 43th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/04c394208831d5e0d5cfee46722eb0f033cd4083Patch
- https://git.kernel.org/stable/c/6173a77b7e9d3e202bdb9897b23f2a8afe7bf286Patch
- https://git.kernel.org/stable/c/8ed9813871038b25a934b21ab76b5b7dbf44fc3aPatch
- https://git.kernel.org/stable/c/a6317235da8aa7cb97529ebc8121cc2a4c4c437aPatch
- https://git.kernel.org/stable/c/bcd535f07c58342302a2cd2bdd8894fe0872c8a9Patch
- https://git.kernel.org/stable/c/e5d99b29012bbf0e86929403209723b2806500c1Patch
- https://git.kernel.org/stable/c/f1d5888a5efe345b63c430b256e95acb0a475642Patch
- https://git.kernel.org/stable/c/fafcb4b26393870c45462f9af6a48e581dbbcf7ePatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.