CVE-2026-45897

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_counter: serialize reset with spinlock Add a global static spinlock to serialize counter fetch+reset operations, preventing concurrent dump-and-reset from underrunning values. The lock is taken before fetching the total so that two parallel resets cannot both read the same counter values and then both subtract them. A global lock is used for simplicity since resets are infrequent. If this becomes a bottleneck, it can be replaced with a per-net lock later.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

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/0cdc6d5a26f2d1f7f15a43526841b679445c32e2	Patch
https://git.kernel.org/stable/c/48cf7918d10c66cb6b05226fa3fa5daf0c891089
https://git.kernel.org/stable/c/779c60a5190c42689534172f4b49e927c9959e4e	Patch
https://git.kernel.org/stable/c/cd968dcdec6aee79a2d399e4f6e0eca63c3b45e1
https://git.kernel.org/stable/c/de6601f1374fab124cd9276df6671f64d940ceb4
https://git.kernel.org/stable/c/e13194e60217db02c2e7202375d9e5951267d87b

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-27 14:17

Updated : 2026-09-14 12:17

NVD link : CVE-2026-45897

Mitre link : CVE-2026-45897

CVE.ORG link : CVE-2026-45897

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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