Vulnerability details
CVE-2025-37997
Linux Linux
netfilter: ipset: fix region locking in hash types
CVSS 3.1
7.8High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 5.6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | a469bab3386aebff33c59506f3a95e35b91118fd | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.4.24 ≤ v < 5.4.294 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5.5.8 ≤ v < 5.6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 5dd9488ae41070b69d2f4acb580f77db5705f9ca ≤ v < 00cfc5fad1491796942a948808afb968a0a3f35b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f66ee0410b1c3481ee75e5db9b34547b4d582465 ≤ v < e2ab67672b2288521a6146034a971f9a82ffc5c5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f66ee0410b1c3481ee75e5db9b34547b4d582465 ≤ v < 6e002ecc1c8cfdfc866b9104ab7888da54613e59 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f66ee0410b1c3481ee75e5db9b34547b4d582465 ≤ v < 8478a729c0462273188263136880480729e9efca | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f66ee0410b1c3481ee75e5db9b34547b4d582465 ≤ v < a3dfec485401943e315c394c29afe2db8f9481d6 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f66ee0410b1c3481ee75e5db9b34547b4d582465 ≤ v < aa77294b0f73bb8265987591460cd25b8722c3df | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f66ee0410b1c3481ee75e5db9b34547b4d582465 ≤ v < 82c1eb32693bc48251d92532975e19160987e5b9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | f66ee0410b1c3481ee75e5db9b34547b4d582465 ≤ v < 226ce0ec38316d9e3739e73a64b6b8304646c658 | CVEProject cvelistV5 (CNA) |
References and advisories
10- https://git.kernel.org/stable/c/00cfc5fad1491796942a948808afb968a0a3f35b
- https://git.kernel.org/stable/c/226ce0ec38316d9e3739e73a64b6b8304646c658
- https://git.kernel.org/stable/c/82c1eb32693bc48251d92532975e19160987e5b9
- https://git.kernel.org/stable/c/aa77294b0f73bb8265987591460cd25b8722c3df
- https://git.kernel.org/stable/c/a3dfec485401943e315c394c29afe2db8f9481d6
- https://git.kernel.org/stable/c/e2ab67672b2288521a6146034a971f9a82ffc5c5
- https://git.kernel.org/stable/c/6e002ecc1c8cfdfc866b9104ab7888da54613e59
- https://git.kernel.org/stable/c/8478a729c0462273188263136880480729e9efca
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html
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Details
- Published
- 2025-05-29
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.18%
Probability of exploitation in 30 days
7.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —