CVE-2021-47669
can: vxcan: vxcan_xmit: fix use after free bug
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug After calling netif_rx_ni(skb), dereferencing skb is unsafe. Especially, the canfd_frame cfd which aliases skb memory is accessed after the netif_rx_ni().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Apr 17, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
a8f820a380a2a06fc4fe1a54159067958f800929 < 6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105 a8f820a380a2a06fc4fe1a54159067958f800929 < 9b820875a32a3443d67bfd368e93038354e98052 a8f820a380a2a06fc4fe1a54159067958f800929 < a24476b37167816e6352ca1a2cf3769847774f70 a8f820a380a2a06fc4fe1a54159067958f800929 < e771a874076115df8bff27d325edfd2340e4ec69 a8f820a380a2a06fc4fe1a54159067958f800929 < 75854cad5d80976f6ea0f0431f8cedd3bcc475cb
Linux / Linux
4.12
References
git.kernel.org: https://git.kernel.org/stable/c/6d6dcf2399cdd26f7f5426ca8dd8366b7f2ca105 git.kernel.org: https://git.kernel.org/stable/c/9b820875a32a3443d67bfd368e93038354e98052 git.kernel.org: https://git.kernel.org/stable/c/a24476b37167816e6352ca1a2cf3769847774f70 git.kernel.org: https://git.kernel.org/stable/c/e771a874076115df8bff27d325edfd2340e4ec69 git.kernel.org: https://git.kernel.org/stable/c/75854cad5d80976f6ea0f0431f8cedd3bcc475cb