In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix OOB read/write in network-coding decode batadv_nc_skb_decode_packet() trusts coded_len and checks only against skb->len. XOR starts at sizeof(struct batadv_unicast_packet), reducing payload headroom, and the source skb length is not verified, allowing an out-of-bounds read and a small out-of-bounds write. Validate that coded_len fits within the payload area of both destination and source sk_buffs before XORing.
Fix
Patch, vendor advisory and mitigation references on NVD 8
- https://git.kernel.org/stable/c/1e36c6c8dc8023b4bbe9a16e819f9998b9b6a183 Patch
- https://git.kernel.org/stable/c/20080709457bc1e920eb002483d7d981d9b2ac1c Patch
- https://git.kernel.org/stable/c/30fc47248f02b8a14a61df469e1da4704be1a19f Patch
- https://git.kernel.org/stable/c/5d334bce9fad58cf328d8fa14ea1fff855819863 Patch
- https://git.kernel.org/stable/c/a67c6397fcb7e842d3c595243049940970541c48 Patch
- https://git.kernel.org/stable/c/bb37252c9af1cb250f34735ee98f80b46be3cef1 Patch
- https://git.kernel.org/stable/c/d77b6ff0ce35a6d0b0b7b9581bc3f76d041d4087 Patch
- https://git.kernel.org/stable/c/dce6c2aa70e94c04c523b375dfcc664d7a0a560a Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · linux, debianNVD modified 2026-10-19 21:10
Affected (CPE criteria) 6
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
References 12
- https://git.kernel.org/stable/c/1e36c6c8dc8023b4bbe9a16e819f9998b9b6a183 Patch
- https://git.kernel.org/stable/c/20080709457bc1e920eb002483d7d981d9b2ac1c Patch
- https://git.kernel.org/stable/c/30fc47248f02b8a14a61df469e1da4704be1a19f Patch
- https://git.kernel.org/stable/c/5d334bce9fad58cf328d8fa14ea1fff855819863 Patch
- https://git.kernel.org/stable/c/a67c6397fcb7e842d3c595243049940970541c48 Patch
- https://git.kernel.org/stable/c/bb37252c9af1cb250f34735ee98f80b46be3cef1 Patch
- https://git.kernel.org/stable/c/d77b6ff0ce35a6d0b0b7b9581bc3f76d041d4087 Patch
- https://git.kernel.org/stable/c/dce6c2aa70e94c04c523b375dfcc664d7a0a560a Patch
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://cert-portal.siemens.com/productcert/html/ssa-089022.html