CVE-2026-31418
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < c098ff857e7ca923539164af5b3c2fe3e8f8afaf | affected |
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < 58f3a14826d4e6b0d5421f1a64be280b48601ea2 | affected |
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb | affected |
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < 6cea34d7ec6829b62f521a37a287f670144a2233 | affected |
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < b7eef00f08b92b0b9efe8ae0df6d0005e6199323 | affected |
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < 68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4 | affected |
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < ceacaa76f221a6577aba945bb8873c2e640aeba4 | affected |
| Linux | Linux | 8af1c6fbd9239877998c7f5a591cb2c88d41fb66 < 9862ef9ab0a116c6dca98842aab7de13a252ae02 | affected |
| Linux | Linux | 6c717726f341fd8f39a3ec2dcf5d98d9d28a2769 | affected |
| Linux | Linux | d2997d64dfa65082236bca1efd596b6c935daf5e | affected |
| Linux | Linux | 5.4.24 < 5.5 | affected |
| Linux | Linux | 5.5.8 < 5.6 | affected |
| Linux | Linux | 5.6 | affected |
| Linux | Linux | 0 < 5.6 | unaffected |
| Linux | Linux | 5.10.253 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.203 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.168 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.134 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.81 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.22 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.12 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/c098ff857e7ca923539164af5b3c2fe3e8f8afaf
- https://git.kernel.org/stable/c/58f3a14826d4e6b0d5421f1a64be280b48601ea2
- https://git.kernel.org/stable/c/ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb
- https://git.kernel.org/stable/c/6cea34d7ec6829b62f521a37a287f670144a2233
- https://git.kernel.org/stable/c/b7eef00f08b92b0b9efe8ae0df6d0005e6199323
- https://git.kernel.org/stable/c/68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4
- https://git.kernel.org/stable/c/ceacaa76f221a6577aba945bb8873c2e640aeba4
- https://git.kernel.org/stable/c/9862ef9ab0a116c6dca98842aab7de13a252ae02
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