In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: drop logically empty buckets in mtype_del mtype_del() counts empty slots below n->pos in k, but it only drops the bucket when both n->pos and k are zero. This misses buckets whose live entries have all been removed while n->pos still points past deleted slots. Treat a bucket as empty when all positions below n->pos are unused and release it directly instead of shrinking it further.
Fix
Patch, vendor advisory and mitigation references on NVD 8
- https://git.kernel.org/stable/c/58f3a14826d4e6b0d5421f1a64be280b48601ea2 Patch
- https://git.kernel.org/stable/c/68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4 Patch
- https://git.kernel.org/stable/c/6cea34d7ec6829b62f521a37a287f670144a2233 Patch
- https://git.kernel.org/stable/c/9862ef9ab0a116c6dca98842aab7de13a252ae02 Patch
- https://git.kernel.org/stable/c/ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb Patch
- https://git.kernel.org/stable/c/b7eef00f08b92b0b9efe8ae0df6d0005e6199323 Patch
- https://git.kernel.org/stable/c/c098ff857e7ca923539164af5b3c2fe3e8f8afaf Patch
- https://git.kernel.org/stable/c/ceacaa76f221a6577aba945bb8873c2e640aeba4 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 5.5 · linuxNVD modified 2026-10-15 02:19
Affected (CPE criteria) 12
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.6:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.6:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.6:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.6:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.6:rc7:*:*:*:*:*:*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:*:*:*:*:*:*
References 11
- https://git.kernel.org/stable/c/58f3a14826d4e6b0d5421f1a64be280b48601ea2 Patch
- https://git.kernel.org/stable/c/68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4 Patch
- https://git.kernel.org/stable/c/6cea34d7ec6829b62f521a37a287f670144a2233 Patch
- https://git.kernel.org/stable/c/9862ef9ab0a116c6dca98842aab7de13a252ae02 Patch
- https://git.kernel.org/stable/c/ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb Patch
- https://git.kernel.org/stable/c/b7eef00f08b92b0b9efe8ae0df6d0005e6199323 Patch
- https://git.kernel.org/stable/c/c098ff857e7ca923539164af5b3c2fe3e8f8afaf Patch
- https://git.kernel.org/stable/c/ceacaa76f221a6577aba945bb8873c2e640aeba4 Patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html