CVE-2025-21980
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)
sched: address a potential NULL pointer dereference in the GRED scheduler.
In the Linux kernel, the following vulnerability has been resolved: sched: address a potential NULL pointer dereference in the GRED scheduler. If kzalloc in gred_init returns a NULL pointer, the code follows the error handling path, invoking gred_destroy. This, in turn, calls gred_offload, where memset could receive a NULL pointer as input, potentially leading to a kernel crash. When table->opt is NULL in gred_init(), gred_change_table_def() is not called yet, so it is not necessary to call ->ndo_setup_tc() in gred_offload().
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) |
|---|---|---|---|---|---|
| f25c0515c521375154c62c72447869f40218c861 | affected | git | d02c9acd68950a444acda18d514e2b41f846cb7f | Unavailable | None listed |
| f25c0515c521375154c62c72447869f40218c861 | affected | git | 0f0a152957d64ce45b4c27c687e7d087e8f45079 | Unavailable | None listed |
| f25c0515c521375154c62c72447869f40218c861 | affected | git | 68896dd50180b38ea552e49a6a00b685321e5769 | Unavailable | None listed |
| f25c0515c521375154c62c72447869f40218c861 | affected | git | 5f996b4f80c2cef1f9c77275055e7fcba44c9199 | Unavailable | None listed |
| f25c0515c521375154c62c72447869f40218c861 | affected | git | 115ef44a98220fddfab37a39a19370497cd718b9 | 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) |
|---|---|---|---|---|---|
| 5.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.16 | Unavailable | None listed |
| 6.1.132 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.84 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.20 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.8 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |