CVE-2022-50422
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
scsi: libsas: Fix use-after-free bug in smp_execute_task_sg()
In the Linux kernel, the following vulnerability has been resolved: scsi: libsas: Fix use-after-free bug in smp_execute_task_sg() When executing SMP task failed, the smp_execute_task_sg() calls del_timer() to delete "slow_task->timer". However, if the timer handler sas_task_internal_timedout() is running, the del_timer() in smp_execute_task_sg() will not stop it and a UAF will happen. The process is shown below: (thread 1) | (thread 2) smp_execute_task_sg() | sas_task_internal_timedout() ... | del_timer() | ... | ... sas_free_task(task) | kfree(task->slow_task) //FREE| | task->slow_task->... //USE Fix by calling del_timer_sync() in smp_execute_task_sg(), which makes sure the timer handler have finished before the "task->slow_task" is deallocated.
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) |
|---|---|---|---|---|---|
| 2908d778ab3e244900c310974e1fc1c69066e450 | affected | git | 117331a2a5227fb4369c2a1f321d3e3e2e2ef8fe | Unavailable | None listed |
| 2908d778ab3e244900c310974e1fc1c69066e450 | affected | git | a9e5176ead6de64f572ad5c87a72825d9d3c82ae | Unavailable | None listed |
| 2908d778ab3e244900c310974e1fc1c69066e450 | affected | git | e45a1516d2933703a4823d9db71e17c3abeba24f | Unavailable | None listed |
| 2908d778ab3e244900c310974e1fc1c69066e450 | affected | git | f7a785177611ffc97d645fcbc196e6de6ad2421d | Unavailable | None listed |
| 2908d778ab3e244900c310974e1fc1c69066e450 | affected | git | 2e12ce270f0d926085c1209cc90397e307deef97 | Unavailable | None listed |
| 2908d778ab3e244900c310974e1fc1c69066e450 | affected | git | 46ba53c30666717cb06c2b3c5d896301cd00d0c0 | 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) |
|---|---|---|---|---|---|
| 2.6.19 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.19 | Unavailable | None listed |
| 5.4.220 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.150 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.75 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.19.17 | unaffected | semver | Unavailable | 5.19.* | None listed |
| 6.0.3 | unaffected | semver | Unavailable | 6.0.* | None listed |
| 6.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |