Detections
Analytics
CVE-2026-23442
medium
Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: add NULL checks for idev in SRv6 paths __in6_dev_get() can return NULL when the device has no IPv6 configuration (e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER). Add NULL checks for idev returned by __in6_dev_get() in both seg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL pointer dereferences.
References
https://git.kernel.org/stable/c/c5cedee5d97382176573bbe21e1724e737a5eb64
https://git.kernel.org/stable/c/bc9843c39f9932a8b36efd1d362ea00bb88e4e78
https://git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13
https://git.kernel.org/stable/c/50352fc103928e10e8729abc79a0d05abef26c4d
https://git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0