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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-45897

netfilter: nft_counter: serialize reset with spinlock

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • fb1adb05ea87b6149e65a31e511756c4f470d0cd to < e13194e60217db02c2e7202375d9e5951267d87baffected
  • f123293db16dcd0cd81b246ae60e6362f0025d0a to < de6601f1374fab124cd9276df6671f64d940ceb4affected
  • 3cb03edb4de33fd04c4ea55f47397b96a8657c53 to < 48cf7918d10c66cb6b05226fa3fa5daf0c891089affected
  • 3cb03edb4de33fd04c4ea55f47397b96a8657c53 to < cd968dcdec6aee79a2d399e4f6e0eca63c3b45e1affected
  • 3cb03edb4de33fd04c4ea55f47397b96a8657c53 to < 0cdc6d5a26f2d1f7f15a43526841b679445c32e2affected
  • 3cb03edb4de33fd04c4ea55f47397b96a8657c53 to < 779c60a5190c42689534172f4b49e927c9959e4eaffected
  • 6.1.107 to < 6.1.188affected
  • 6.6.48 to < 6.6.157affected

Linux Linux

Default version status: affected

  • 6.7affected
  • 0 to < 6.7unaffected
  • 6.1.188 to ≤ 6.1.*unaffected
  • 6.6.157 to ≤ 6.6.*unaffected
  • 6.12.101 to ≤ 6.12.*unaffected
  • 6.18.42 to ≤ 6.18.*unaffected
  • 6.19.4 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References