can: dev: can_restart: fix use after free bug
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.8epss 0.2%
probabilidade de exploração
0.2%top 87% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
can: dev: can_restart: fix use after free bug
After calling netif_rx_ni(skb), dereferencing skb is unsafe.
Especially, the can_frame cf which aliases skb memory is accessed
after the netif_rx_ni() in:
stats->rx_bytes += cf->len;
Reordering the lines solves the issue.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Produtos afetados
Linux · LinuxReferências
https://git.kernel.org/stable/c/03f16c5075b22c8902d2af739969e878b0879c94https://git.kernel.org/stable/c/08ab951787098ae0b6c0364aeea7a8138226f234https://git.kernel.org/stable/c/260925a0b7d2da5449f8ecfd02c1405e0c8a45b8https://git.kernel.org/stable/c/593c072b7b3c4d7044416eb039d9ad706bedd67ahttps://git.kernel.org/stable/c/92668d28c7e6a7a2ba07df287669ffcdf650c421https://git.kernel.org/stable/c/ac48ef15826e83f4206c47add61072e8fc76d328https://git.kernel.org/stable/c/bbc6847b9b8978b520f62fbc7c68c54ef0f8d282