linux: In the Linux kernel, the following vulnerability has been resolved: can: vxcan: vxcan_xmit: fix use after free bug...
CVE-2021-47669 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47669, released April 17, 2025. It is not reported as exploited. Patch Radar priority: High.
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().
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 5.10.12-1 | DEBIAN-CVE-2021-47669 | Apr 17, 2025 |
| linux · Debian 13.5 (trixie) | 5.10.12-1 | DEBIAN-CVE-2021-47669 | Apr 17, 2025 |
| linux · Debian 14 | 5.10.12-1 | DEBIAN-CVE-2021-47669 | Apr 17, 2025 |
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