CVE-2026-98089bonding: alb: fix uninitialized transport header access in alb_determine_nd()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: bonding: alb: fix uninitialized transport header access in alb_determine_nd() alb_determine_nd() uses icmp6_hdr(skb) to inspect ICMPv6 headers. However, in xmit paths (e.g. packets sent via AF_PACKET / raw sockets or forwarded packets), skb->transport_header is not guaranteed to be initialized. While pskb_network_may_pull() ensures the packet data is linear starting from the network header, it does not set or adjust the transport header offset. Dereferencing icmp6_hdr(skb) can therefore access out-of-bounds memory. Fetch the icmp6hdr directly after ipv6hdr following pskb_network_may_pull(), and reload ipv6hdr in case pskb_may_pull() reallocated skb->head. Also remove the unused bond argument from alb_determine_nd().
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Undergoing Analysis
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 before 862c8eb6947689c44fe11353755576a3672563a5; from 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 before 7adb1bf25b0c5cedfb49b6e82844394d4f3c0d99; from 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 before e39cf90bd856443542b97933289749fca07476bf; from 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 before 27314f96d29b54e815e7a9b84c3273f1895e68e2; from 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 before 3b178894931a268c09126a5b53630f343e10e296; from 0da8aa00bfcfeb3f4e6537dd8e2001e0727ba549 before 70f3995830d3f1e79faa14eb0605914f778feca9 | CNA record |
References
- https://git.kernel.org/stable/c/862c8eb6947689c44fe11353755576a3672563a5
- https://git.kernel.org/stable/c/7adb1bf25b0c5cedfb49b6e82844394d4f3c0d99
- https://git.kernel.org/stable/c/e39cf90bd856443542b97933289749fca07476bf
- https://git.kernel.org/stable/c/27314f96d29b54e815e7a9b84c3273f1895e68e2
- https://git.kernel.org/stable/c/3b178894931a268c09126a5b53630f343e10e296
- https://git.kernel.org/stable/c/70f3995830d3f1e79faa14eb0605914f778feca9
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.