CVE-2026-68357
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)
watchdog: pretimeout: Fix UAF in watchdog_unregister_governor()
In the Linux kernel, the following vulnerability has been resolved: watchdog: pretimeout: Fix UAF in watchdog_unregister_governor() When a watchdog governor is unregistered, it updates existing watchdog devices that were using this governor by falling back to `default_gov`. If the governor being unregistered is currently set as `default_gov`, the `default_gov` is never cleared. This leads to 2 use-after-free issues: 1. New watchdog devices registered after this point will inherit the dangling `default_gov`. 2. Existing watchdog devices using the unregistered governor will have their `wdd->gov` reassigned to the dangling `default_gov`. Fix the UAF by clearing `default_gov` if it matches the governor being unregistered.
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) |
|---|---|---|---|---|---|
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | b9ae33faa96bdec6bc60e4c5f8f53786182e4207 | Unavailable | None listed |
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | 472ec1e34ff0bb26379805cae808f658cce58c35 | Unavailable | None listed |
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | 7a2ee3ec6f208307eca1119a343c7b5d39c03708 | Unavailable | None listed |
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | 2e47b91b9b4020fcc01def14d6b6556d66074cf4 | Unavailable | None listed |
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | 0ca252720f0e38411cfec3431db9bb1aed0a412c | Unavailable | None listed |
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | 7d1658b066de30f4b23afc14814d22416a971e6e | Unavailable | None listed |
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | 7993d626983cc58fbde9607333cfd2d57725c197 | Unavailable | None listed |
| da0d12ff2b829a35e9921918e925d79497b82bef | affected | git | 7362ba0f9c96ac3ad6a2ca3995bd9fc9a28a8661 | 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) |
|---|---|---|---|---|---|
| 4.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.9 | Unavailable | None listed |
| 5.10.265 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.216 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.148 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.101 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.42 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.6 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |