CVE-2023-54238
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-54238
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54238.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-54238
- Downstream
- Published
- 2025-12-30T12:11:27.702Z
- Modified
- 2025-12-30T20:38:17.906580Z
- Summary
- mlx5: fix skb leak while fifo resync and push
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
mlx5: fix skb leak while fifo resync and push
During ptp resync operation SKBs were poped from the fifo but were never freed neither by napiconsume nor by devkfreeskbany. Add call to napiconsumeskb to properly free SKBs.
Another leak was happening because mlx5eskbfifohasroom() had an error in the check. Comparing free running counters works well unless C promotes the types to something wider than the counter. In this case counters are u16 but the result of the substraction is promouted to int and it causes wrong result (negative value) of the check when producer have already overlapped but consumer haven't yet. Explicit cast to u16 fixes the issue.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54238.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/234cffda95e1049f58e8ec136ef105c633f0ed19
- https://git.kernel.org/stable/c/68504c66d08c70fb92799722e25a932d311d74fd
- https://git.kernel.org/stable/c/e435941b1da1a0be4ff8a7ae425774c76a5ac514
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54238.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-54238
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced58a518948f60153e8f6cb8361d2712aa3a1af94aFixed234cffda95e1049f58e8ec136ef105c633f0ed19Fixed68504c66d08c70fb92799722e25a932d311d74fdFixede435941b1da1a0be4ff8a7ae425774c76a5ac514
Affected versions
v5.*
v5.19
v5.19-rc7
v5.19-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.1.1
v6.1.10
v6.1.11
v6.1.12
v6.1.13
v6.1.14
v6.1.15
v6.1.16
v6.1.17
v6.1.2
v6.1.3
v6.1.4
v6.1.5
v6.1.6
v6.1.7
v6.1.8
v6.1.9
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.2.1
v6.2.2
v6.2.3
v6.2.4