CVE-2026-43101

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux9ee11f0fff205b4b3df9750bff5e94f97c71b6a0 < 4198aab6f000b4febb18ea820fea20634dd789c7affected
LinuxLinux9ee11f0fff205b4b3df9750bff5e94f97c71b6a0 < 3719c234fa94c37c955b1ecd3742ef280ec135e6affected
LinuxLinux9ee11f0fff205b4b3df9750bff5e94f97c71b6a0 < 4e65a8b8daa18d63255ec58964dd192c7fdd9f8baffected
LinuxLinux5.15affected
LinuxLinux0 < 5.15unaffected
LinuxLinux6.18.24 <= 6.18.*unaffected
LinuxLinux6.19.14 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References