CVE-2025-21639
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)
sctp: sysctl: rto_min/max: avoid using current->nsproxy
In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: rto_min/max: avoid using current->nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the reader's/writer's netns vs only from the opener's netns. - current->nsproxy can be NULL in some cases, resulting in an 'Oops' (null-ptr-deref), e.g. when the current task is exiting, as spotted by syzbot [1] using acct(2). The 'net' structure can be obtained from the table->data using container_of(). Note that table->data could also be used directly, as this is the only member needed from the 'net' structure, but that would increase the size of this fix, to use '*data' everywhere 'net->sctp.rto_min/max' is used.
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) |
|---|---|---|---|---|---|
| 4f3fdf3bc59cafd14c3bc2c2369efad34c7aa8b5 | affected | git | c8d179f3b1c1d60bf4484f50aa67b4c70f91bff9 | Unavailable | None listed |
| 4f3fdf3bc59cafd14c3bc2c2369efad34c7aa8b5 | affected | git | 246428bfb9e7db15c5cd08e1d0eca41b65af2b06 | Unavailable | None listed |
| 4f3fdf3bc59cafd14c3bc2c2369efad34c7aa8b5 | affected | git | 0f78f09466744589e420935e646ae78212a38290 | Unavailable | None listed |
| 4f3fdf3bc59cafd14c3bc2c2369efad34c7aa8b5 | affected | git | 4059507e34aa5fe0fa9fd5b2b5f0c8b26ab2d482 | Unavailable | None listed |
| 4f3fdf3bc59cafd14c3bc2c2369efad34c7aa8b5 | affected | git | dc9d0e3cfd16f66fbf0862857c6b391c8613ca9f | Unavailable | None listed |
| 4f3fdf3bc59cafd14c3bc2c2369efad34c7aa8b5 | affected | git | c87f1f6ade56c711f8736901e330685b453e420e | Unavailable | None listed |
| 4f3fdf3bc59cafd14c3bc2c2369efad34c7aa8b5 | affected | git | 9fc17b76fc70763780aa78b38fcf4742384044a5 | 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) |
|---|---|---|---|---|---|
| 3.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.13 | Unavailable | None listed |
| 5.4.290 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.234 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.177 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.125 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.72 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.10 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13 | unaffected | original_commit_for_fix | Unavailable | * | None listed |