CVE-2026-64253
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)
kernel/fork: clear PF_BLOCK_TS in copy_process()
In the Linux kernel, the following vulnerability has been resolved: kernel/fork: clear PF_BLOCK_TS in copy_process() PF_BLOCK_TS is only set in blk_time_get_ns() when current->plug is non-NULL, and blk_finish_plug() clears it via __blk_flush_plug() before NULLing the plug pointer. copy_process() breaks the invariant by inheriting PF_BLOCK_TS from the parent while resetting the child's plug to NULL. Clear PF_BLOCK_TS alongside that assignment so callers can rely on "PF_BLOCK_TS set implies current->plug != NULL" and dereference current->plug unguarded.
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) |
|---|---|---|---|---|---|
| 06b23f92af87a84d70881b2ecaa72e00f7838264 | affected | git | ee0801aceabdf583392477baf69a290b09448b8f | Unavailable | None listed |
| 06b23f92af87a84d70881b2ecaa72e00f7838264 | affected | git | 99e6c712cc300883b8cbf03347d5359ec1a4d6dd | Unavailable | None listed |
| 06b23f92af87a84d70881b2ecaa72e00f7838264 | affected | git | 77bba61a20f1b3d206f4f90e10a7bb3cd90b9619 | Unavailable | None listed |
| 06b23f92af87a84d70881b2ecaa72e00f7838264 | affected | git | fd38b75c4b43295b10d69772a46d1c74dbd6fc81 | 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) |
|---|---|---|---|---|---|
| 6.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.9 | Unavailable | None listed |
| 6.12.95 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.38 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.3 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |