CVE-2026-45860
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
netfilter: nf_conncount: increase the connection clean up limit to 64
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conncount: increase the connection clean up limit to 64 After the optimization to only perform one GC per jiffy, a new problem was introduced. If more than 8 new connections are tracked per jiffy the list won't be cleaned up fast enough possibly reaching the limit wrongly. In order to prevent this issue, only skip the GC if it was already triggered during the same jiffy and the increment is lower than the clean up limit. In addition, increase the clean up limit to 64 connections to avoid triggering GC too often and do more effective GCs. This has been tested using a HTTP server and several performance tools while having nft_connlimit/xt_connlimit or OVS limit configured. Output of slowhttptest + OVS limit at 52000 connections: slow HTTP test status on 340th second: initializing: 0 pending: 432 connected: 51998 error: 0 closed: 0 service available: YES
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| f106694733c66a48740c25bc4e212e9b2ea364ce | affected | git | a5c9e14e0e8923218ae881d5e78c990c07694966 | Unavailable | None listed |
| be69850b461e7b491d87a22e33ab76fdd04b725e | affected | git | 13eede458fdf231f1bf96a398feea4ad1553f14c | Unavailable | None listed |
| d265929930e2ffafc744c0ae05fb70acd53be1ee | affected | git | fa85432d58c8e74b39333edbf8d28df2985dfc79 | Unavailable | None listed |
| d265929930e2ffafc744c0ae05fb70acd53be1ee | affected | git | 0792ad077d776c2dcf20f0484e2461ded1b77a24 | Unavailable | None listed |
| d265929930e2ffafc744c0ae05fb70acd53be1ee | affected | git | 3d0994ed0aa1fc0a2c5e620b765e8defdd021bff | Unavailable | None listed |
| d265929930e2ffafc744c0ae05fb70acd53be1ee | affected | git | 6e5fa7add3e76da068a478d905be64be8fa4e80a | Unavailable | None listed |
| d265929930e2ffafc744c0ae05fb70acd53be1ee | affected | git | 0af0812baf2d363176c9b76fc07e33f13aede8db | Unavailable | None listed |
| d265929930e2ffafc744c0ae05fb70acd53be1ee | affected | git | 21d033e472735ecec677f1ae46d6740b5e47a4f3 | Unavailable | None listed |
| 5.10.248 | affected | semver | 5.10.252 | Unavailable | None listed |
| 5.15.198 | affected | semver | 5.15.202 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.19 | Unavailable | None listed |
| 5.10.252 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.202 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.165 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.128 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.75 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.14 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.4 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |