CRITICALCVSS 9.8

CVE-2021-47232

CVE-2021-47232 updated by NVD

Modified: 2026-08-06
Sources: nvd

Summary

In the Linux kernel, the following vulnerability has been resolved: can: j1939: fix Use-after-Free, hold skb ref while in use This patch fixes a Use-after-Free found by the syzbot. The problem is that a skb is taken from the per-session skb queue, without incrementing the ref count. This leads to a Use-after-Free if the skb is taken concurrently from the session queue due to a CTS.

References

https://nvd.nist.gov/vuln/detail/CVE-2021-47232

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