CVE-2024-56651

Published: December 28, 2024Last modified: December 28, 2024

Description

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.

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Status

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