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.
Fix
Patch, vendor advisory and mitigation references on NVD 3
- https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6 Patch
- https://git.kernel.org/stable/c/4198aab6f000b4febb18ea820fea20634dd789c7 Patch
- https://git.kernel.org/stable/c/4e65a8b8daa18d63255ec58964dd192c7fdd9f8b Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 4
- CwesCWE-476NVD modified 2026-10-21 13:18
- Cpes+8 CPE criteria (now 8)NVD modified 2026-10-21 13:18
- StatusPublished → ModifiedNVD modified 2026-10-21 13:18
- First seenCVSS 7.5 · linuxNVD modified 2026-10-21 12:40
Affected (CPE criteria) 8
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
References 5
- https://git.kernel.org/stable/c/34b8390ac0ba57004b90ea568ac06f50bf896a80
- https://git.kernel.org/stable/c/3719c234fa94c37c955b1ecd3742ef280ec135e6 Patch
- https://git.kernel.org/stable/c/4198aab6f000b4febb18ea820fea20634dd789c7 Patch
- https://git.kernel.org/stable/c/4e65a8b8daa18d63255ec58964dd192c7fdd9f8b Patch
- https://git.kernel.org/stable/c/f87aa5d1a7f56727a768757613a303b4245444a1