CVE-2025-21726
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)
padata: avoid UAF for reorder_work
In the Linux kernel, the following vulnerability has been resolved: padata: avoid UAF for reorder_work Although the previous patch can avoid ps and ps UAF for _do_serial, it can not avoid potential UAF issue for reorder_work. This issue can happen just as below: crypto_request crypto_request crypto_del_alg padata_do_serial ... padata_reorder // processes all remaining // requests then breaks while (1) { if (!padata) break; ... } padata_do_serial // new request added list_add // sees the new request queue_work(reorder_work) padata_reorder queue_work_on(squeue->work) ... <kworker context> padata_serial_worker // completes new request, // no more outstanding // requests crypto_del_alg // free pd <kworker context> invoke_padata_reorder // UAF of pd To avoid UAF for 'reorder_work', get 'pd' ref before put 'reorder_work' into the 'serial_wq' and put 'pd' ref until the 'serial_wq' finish.
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) |
|---|---|---|---|---|---|
| bbefa1dd6a6d53537c11624752219e39959d04fb | affected | git | f4f1b1169fc3694f9bc3e28c6c68dbbf4cc744c0 | Unavailable | None listed |
| bbefa1dd6a6d53537c11624752219e39959d04fb | affected | git | 4c6209efea2208597dbd3e52dc87a0d1a8f2dbe1 | Unavailable | None listed |
| bbefa1dd6a6d53537c11624752219e39959d04fb | affected | git | 7000507bb0d2ceb545c0a690e0c707c897d102c2 | Unavailable | None listed |
| bbefa1dd6a6d53537c11624752219e39959d04fb | affected | git | 6f45ef616775b0ce7889b0f6077fc8d681ab30bc | Unavailable | None listed |
| bbefa1dd6a6d53537c11624752219e39959d04fb | affected | git | 8ca38d0ca8c3d30dd18d311f1a7ec5cb56972cac | Unavailable | None listed |
| bbefa1dd6a6d53537c11624752219e39959d04fb | affected | git | a54091c24220a4cd847d5b4f36d678edacddbaf0 | Unavailable | None listed |
| bbefa1dd6a6d53537c11624752219e39959d04fb | affected | git | dd7d37ccf6b11f3d95e797ebe4e9e886d0332600 | Unavailable | None listed |
| b4c8ed0bf977760a206997b6429a7ac91978f440 | affected | git | Unavailable | Unavailable | None listed |
| e43d65719527043f1ef79ecba9d4ede58cbc7ffe | affected | git | Unavailable | Unavailable | None listed |
| 5.4.19 | affected | semver | 5.5 | Unavailable | None listed |
| 5.5.3 | affected | semver | 5.6 | 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) |
|---|---|---|---|---|---|
| 5.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.6 | Unavailable | None listed |
| 5.10.235 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.179 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.129 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.76 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.13 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.13.2 | unaffected | semver | Unavailable | 6.13.* | None listed |
| 6.14 | unaffected | original_commit_for_fix | Unavailable | * | None listed |