CVE-2025-21774: can: rockchip: rkcanfd_handle_rx_fifo_overflow_int(): bail out if skb cannot be allocated

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-02-27 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: can: rockchip: rkcanfd_handle_rx_fifo_overflow_int(): bail out if skb cannot be allocated Fix NULL pointer check in rkcanfd_handle_rx_fifo_overflow_int() to bail out if skb cannot be allocated.

Affected products

Linux kernel: from 6.12 before 6.12.16; from 6.13 before 6.13.4; 6.14-rc1, 6.14-rc2 — fixed in 6.12.16, 6.13.4

How to fix

Upgrade to a fixed version: Linux kernel 6.12.16, 6.13.4. Check the vendor advisory for mitigations.

References

https://git.kernel.org/stable/c/118fb35681bd2c0d2afa22f7be0ef94bb4d06849
https://git.kernel.org/stable/c/946750e7865df2e70045071051abf768785dd570
https://git.kernel.org/stable/c/f7f0adfe64de08803990dc4cbecd2849c04e314a

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