CVE-2021-47669
High
Description
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().
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedApr 17, 2025
First seenApr 17, 2025
Weakness typeCWE-416Use after free
How to fix
Update
- linux linux_kernel4.14.218, 4.19.171, 5.4.93, 5.10.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.12 ≤ v < 4.14.218, 4.15 ≤ v < 4.19.171, 4.20 ≤ v < 5.4.93, 5.5 ≤ v < 5.10.11, 5.11 | 4.14.218, 4.19.171, 5.4.93, 5.10.11 |
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