CVE-2025-39764
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
netfilter: ctnetlink: remove refcounting in expectation dumpers
In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: remove refcounting in expectation dumpers Same pattern as previous patch: do not keep the expectation object alive via refcount, only store a cookie value and then use that as the skip hint for dump resumption. AFAICS this has the same issue as the one resolved in the conntrack dumper, when we do if (!refcount_inc_not_zero(&exp->use)) to increment the refcount, there is a chance that exp == last, which causes a double-increment of the refcount and subsequent memory leak.
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) |
|---|---|---|---|---|---|
| cf6994c2b9812a9f02b99e89df411ffc5db9c779 | affected | git | b05500444b8eb97644efdd180839a04a706be97c | Unavailable | None listed |
| cf6994c2b9812a9f02b99e89df411ffc5db9c779 | affected | git | bada48ad5b0590e318d0f79636ff62a2ef9f4955 | Unavailable | None listed |
| cf6994c2b9812a9f02b99e89df411ffc5db9c779 | affected | git | 64b7684042246e3238464c66894e30ba30c7e851 | Unavailable | None listed |
| cf6994c2b9812a9f02b99e89df411ffc5db9c779 | affected | git | 9e5021a906532ca16e2aac69c0607711e1c70b1f | Unavailable | None listed |
| cf6994c2b9812a9f02b99e89df411ffc5db9c779 | affected | git | 078d33c95bf534d37aa04269d1ae6158e20082d5 | Unavailable | None listed |
| cf6994c2b9812a9f02b99e89df411ffc5db9c779 | affected | git | a4d634ded4d3d400f115d84f654f316f249531c9 | Unavailable | None listed |
| cf6994c2b9812a9f02b99e89df411ffc5db9c779 | affected | git | 1492e3dcb2be3aa46d1963da96aa9593e4e4db5a | 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) |
|---|---|---|---|---|---|
| 2.6.23 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.23 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.78 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.16.2 | unaffected | semver | Unavailable | 6.16.* | None listed |
| 6.17 | unaffected | original_commit_for_fix | Unavailable | * | None listed |