CVE-2024-56651

can: hi311x: hi3110_can_ist(): fix potential use-after-free

CVSS 7.8 HIGHEPSS 0.2%CWE-416

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.8EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

27 Dec 2024Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

In the Linux kernel, the following vulnerability has been resolved: can: hi311x: hi3110_can_ist(): fix potential use-after-free The commit a22bd630cfff ("can: hi311x: do not report txerr and rxerr during bus-off") removed the reporting of rxerr and txerr even in case of correct operation (i. e. not bus-off). The error count information added to the CAN frame after netif_rx() is a potential use after free, since there is no guarantee that the skb is in the same state. It might be freed or reused. Fix the issue by postponing the netif_rx() call in case of txerr and rxerr reporting.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Linux · Linux

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References

https://git.kernel.org/stable/c/1128022009444faf49359bd406cd665b177cb643 https://git.kernel.org/stable/c/4ad77eb8f2e07bcfa0e28887d3c7dbb732d92cc1 https://git.kernel.org/stable/c/9ad86d377ef4a19c75a9c639964879a5b25a433b https://git.kernel.org/stable/c/bc30b2fe8c54694f8ae08a5b8a5d174d16d93075 https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html