bpf: Disable xfrm_decode_session hook attachment
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 89% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
bpf: Disable xfrm_decode_session hook attachment
BPF LSM programs can currently attach to xfrm_decode_session(). That
hook may return an error, but security_skb_classify_flow() calls it
from a void path and triggers BUG_ON() if an error is returned.
Disable BPF attachment to the hook to prevent a BPF LSM program from
turning packet classification into a full panic.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/12091470c6b4c1c14b2de12dcbae2ada6cb6d20bhttps://git.kernel.org/stable/c/1bb3b6a5c3c5cc814eae4ff0212fdced36f8bce9https://git.kernel.org/stable/c/49fa1be621dde8f526d36e5791aded8fafda1e9chttps://git.kernel.org/stable/c/4ae780d173ef40d4f7cb76935dc2d55fbf380009https://git.kernel.org/stable/c/6b44c6660aa1c9b843e450a623ac4a8484919dcehttps://git.kernel.org/stable/c/aa265d47308775c5501073b08133623bcb5421f9