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.
Affected products
linux: linux kernel
References9
- git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0 Patch
- git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13 Patch
- git.kernel.org/stable/c/bc9843c39f9932a8b36efd1d362ea00bb88e4e78 Patch
- git.kernel.org/stable/c/0348fa0ada37cef7c6b5ab2a428bb2c6aee784e4
- git.kernel.org/stable/c/50352fc103928e10e8729abc79a0d05abef26c4d
- git.kernel.org/stable/c/83d705d35e583cb1b1eacf196dfe7b77d442018e
- git.kernel.org/stable/c/c5cedee5d97382176573bbe21e1724e737a5eb64
- git.kernel.org/stable/c/d1bd8b9edc6752d10f84d28ff64f842401ce336d
- cert-portal.siemens.com/productcert/html/ssa-784472.html
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 3 · as of 12 November 2026
- CWE
- CWE-476
Could this be exploited in your environment?
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