CVE-2026-23442
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < 0348fa0ada37cef7c6b5ab2a428bb2c6aee784e4 | affected |
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < 83d705d35e583cb1b1eacf196dfe7b77d442018e | affected |
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < d1bd8b9edc6752d10f84d28ff64f842401ce336d | affected |
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < 50352fc103928e10e8729abc79a0d05abef26c4d | affected |
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < bc9843c39f9932a8b36efd1d362ea00bb88e4e78 | affected |
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < c5cedee5d97382176573bbe21e1724e737a5eb64 | affected |
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < a25853c9feea7bbf31d157ff6e004d2d3b4f7f13 | affected |
| Linux | Linux | 1ababeba4a21f3dba3da3523c670b207fb2feb62 < 06413793526251870e20402c39930804f14d59c0 | affected |
| Linux | Linux | 4.10 | affected |
| Linux | Linux | 0 < 4.10 | unaffected |
| Linux | Linux | 5.10.258 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.136 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.83 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.25 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.10 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/0348fa0ada37cef7c6b5ab2a428bb2c6aee784e4
- https://git.kernel.org/stable/c/83d705d35e583cb1b1eacf196dfe7b77d442018e
- https://git.kernel.org/stable/c/d1bd8b9edc6752d10f84d28ff64f842401ce336d
- https://git.kernel.org/stable/c/50352fc103928e10e8729abc79a0d05abef26c4d
- https://git.kernel.org/stable/c/bc9843c39f9932a8b36efd1d362ea00bb88e4e78
- https://git.kernel.org/stable/c/c5cedee5d97382176573bbe21e1724e737a5eb64
- https://git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13
- https://git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0
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