CVE-2026-31418

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-31418
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
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
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*
History

20 May 2026, 19:32

Type Values Removed Values Added
First Time Linux linux Kernel
Linux
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/58f3a14826d4e6b0d5421f1a64be280b48601ea2 - () https://git.kernel.org/stable/c/58f3a14826d4e6b0d5421f1a64be280b48601ea2 - Patch
References () https://git.kernel.org/stable/c/68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4 - () https://git.kernel.org/stable/c/68ca0eea0af02bed36c5e2c13e9fa1647c31a7d4 - Patch
References () https://git.kernel.org/stable/c/6cea34d7ec6829b62f521a37a287f670144a2233 - () https://git.kernel.org/stable/c/6cea34d7ec6829b62f521a37a287f670144a2233 - Patch
References () https://git.kernel.org/stable/c/9862ef9ab0a116c6dca98842aab7de13a252ae02 - () https://git.kernel.org/stable/c/9862ef9ab0a116c6dca98842aab7de13a252ae02 - Patch
References () https://git.kernel.org/stable/c/ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb - () https://git.kernel.org/stable/c/ad92ee87462f9a3061361d392e9dbfe2e5c1c9fb - Patch
References () https://git.kernel.org/stable/c/b7eef00f08b92b0b9efe8ae0df6d0005e6199323 - () https://git.kernel.org/stable/c/b7eef00f08b92b0b9efe8ae0df6d0005e6199323 - Patch
References () https://git.kernel.org/stable/c/c098ff857e7ca923539164af5b3c2fe3e8f8afaf - () https://git.kernel.org/stable/c/c098ff857e7ca923539164af5b3c2fe3e8f8afaf - Patch
References () https://git.kernel.org/stable/c/ceacaa76f221a6577aba945bb8873c2e640aeba4 - () https://git.kernel.org/stable/c/ceacaa76f221a6577aba945bb8873c2e640aeba4 - Patch
CWE NVD-CWE-noinfo
CPE cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.6:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*

18 Apr 2026, 09:16

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/58f3a14826d4e6b0d5421f1a64be280b48601ea2 -
  • () https://git.kernel.org/stable/c/c098ff857e7ca923539164af5b3c2fe3e8f8afaf -

13 Apr 2026, 14:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-13 14:16

Updated : 2026-05-20 19:32

NVD link : CVE-2026-31418

Mitre link : CVE-2026-31418

CVE.ORG link : CVE-2026-31418

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo