CVE-2025-37997

High

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: fix region locking in hash types Region locking introduced in v5.6-rc4 contained three macros to handle the region locks: ahash_bucket_start(), ahash_bucket_end() which gave back the start and end hash bucket values belonging to a given region lock and ahash_region() which should give back the region lock belonging to a given hash bucket. The latter was incorrect which can lead to a race condition between the garbage collector and adding new elements when a hash type of set is defined with timeouts.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedMay 29, 2025
First seenMay 29, 2025

How to fix

Update
  • linux linux_kernel5.4.294, 5.6, 5.10.238, 5.15.183, 6.1.139, 6.6.91, 6.12.29, 6.14.7 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel5.4.24 ≤ v < 5.4.294, 5.5.8 ≤ v < 5.6, 5.6.1 ≤ v < 5.10.238, 5.11 ≤ v < 5.15.183, 5.16 ≤ v < 6.1.139, 6.2 ≤ v < 6.6.91, 6.7 ≤ v < 6.12.29, 6.13 ≤ v < 6.14.7, 5.6, 6.155.4.294, 5.6, 5.10.238, 5.15.183, 6.1.139, 6.6.91, 6.12.29, 6.14.7
debian debian_linux11.0—

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