netfilter: nf_set_pipapo_avx2: fix initial map fill
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 94% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_set_pipapo_avx2: fix initial map fill
If the first field doesn't cover the entire start map, then we must zero
out the remainder, else we leak those bits into the next match round map.
The early fix was incomplete and did only fix up the generic C
implementation.
A followup patch adds a test case to nft_concat_range.sh.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/251496ce1728c9fd47bd2b20a7b21b20b9a020cahttps://git.kernel.org/stable/c/39bab2d3517b5b50c609b4f8c66129bf619fffa0https://git.kernel.org/stable/c/8068e1e42b46518ce680dc6470bcd710efc3fa0ahttps://git.kernel.org/stable/c/8164d0efaf370c425dc69a1e8216940d09e7de0chttps://git.kernel.org/stable/c/90bc7f5a244aadee4292b28098b7c98aadd4b3aahttps://git.kernel.org/stable/c/b5ad58285f9217d68cd5ea2ad86ce254a3fe7c4dhttps://git.kernel.org/stable/c/ea77c397bff8b6d59f6d83dae1425b08f465e8b5https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html