{"id":"CVE-2025-37997","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: fix region locking in hash types\n\nRegion locking introduced in v5.6-rc4 contained three macros to handle\nthe region locks: ahash_bucket_start(), ahash…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: fix region locking in hash types\n\nRegion locking introduced in v5.6-rc4 contained three macros to handle\nthe region locks: ahash_bucket_start(), ahash…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-667"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.4.24, < 5.4.294","linux_kernel >= 5.5.8, < 5.6","linux_kernel >= 5.6.1, < 5.10.238","linux_kernel >= 5.11, < 5.15.183","linux_kernel >= 5.16, < 6.1.139","linux_kernel >= 6.2, < 6.6.91","linux_kernel >= 6.7, < 6.12.29","linux_kernel >= 6.13, < 6.14.7","linux_kernel = 5.6","linux_kernel = 6.15","debian_linux = 11.0"],"patched":["linux_kernel 6.14.7"],"published":"2025-05-29","updated":"2026-10-15","sourceUpdated":"2026-10-15T22:18:23.573","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-37997","references":[{"url":"https://git.kernel.org/stable/c/00cfc5fad1491796942a948808afb968a0a3f35b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/226ce0ec38316d9e3739e73a64b6b8304646c658","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/6e002ecc1c8cfdfc866b9104ab7888da54613e59","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/82c1eb32693bc48251d92532975e19160987e5b9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8478a729c0462273188263136880480729e9efca","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a3dfec485401943e315c394c29afe2db8f9481d6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/aa77294b0f73bb8265987591460cd25b8722c3df","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e2ab67672b2288521a6146034a971f9a82ffc5c5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"epss":0.00181,"epssPercentile":0.07607,"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-15T21:46:37.316861Z"},"ingestedAt":"2026-10-15T22:48:25.487Z","slug":"CVE-2025-37997","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: ipset: fix region locking in hash types\n\nRegion locking introduced in v5.6-rc4 contained three macros to handle\nthe region locks: ahash_bucket_start(), ahash_bucket_end() which gave\nback the start and end hash bucket values belonging to a given region\nlock and ahash_region() which should give back the region lock belonging\nto a given hash bucket. The latter was incorrect which can lead to a\nrace condition between the garbage collector and adding new elements\nwhen a hash type of set is defined with timeouts.\n\n## Affected\n\n- `linux_kernel >= 5.4.24, < 5.4.294`\n- `linux_kernel >= 5.5.8, < 5.6`\n- `linux_kernel >= 5.6.1, < 5.10.238`\n- `linux_kernel >= 5.11, < 5.15.183`\n- `linux_kernel >= 5.16, < 6.1.139`\n- `linux_kernel >= 6.2, < 6.6.91`\n- `linux_kernel >= 6.7, < 6.12.29`\n- `linux_kernel >= 6.13, < 6.14.7`\n- `linux_kernel = 5.6`\n- `linux_kernel = 6.15`\n- `debian_linux = 11.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.14.7`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}