CVE-2021-47232EPSS p48.0%
CVE-2021-47232CVE-2021-47232
linux / linux_kernel
Description
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.
Scoring
| CVSS | 9.8 () |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.62% probability of exploitation · percentile 48.0% · 2026-10-05T12:00:23Z |
| Last modified | 2026-08-04 |