CVE-2026-43101
HIGH severity · CVSS 7.5 · CWE-476
7.5CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: fix potential NULL dereferences in __ioam6_fill_trace_data() We need to check __in6_dev_get() for possible NULL value, as suggested by Yiming Qian. Also add skb_dst_dev_rcu() instead of skb_dst_dev(), and two missing READ_ONCE(). Note that @dev can't be NULL.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)1%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6Patch
- https://git.kernel.org/stable/c/4198aab6f000b4febb18ea820fea20634dd789c7Patch
- https://git.kernel.org/stable/c/4e65a8b8daa18d63255ec58964dd192c7fdd9f8bPatch
- https://git.kernel.org/stable/c/34b8390ac0ba57004b90ea568ac06f50bf896a80
- https://git.kernel.org/stable/c/dd0d2827b3643ff307c766865f8e31eab5cbd1f5
- https://git.kernel.org/stable/c/f87aa5d1a7f56727a768757613a303b4245444a1