CVE-2022-50494
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)
thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash
In the Linux kernel, the following vulnerability has been resolved: thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash When CPU 0 is offline and intel_powerclamp is used to inject idle, it generates kernel BUG: BUG: using smp_processor_id() in preemptible [00000000] code: bash/15687 caller is debug_smp_processor_id+0x17/0x20 CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+ #57 Call Trace: <TASK> dump_stack_lvl+0x49/0x63 dump_stack+0x10/0x16 check_preemption_disabled+0xdd/0xe0 debug_smp_processor_id+0x17/0x20 powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp] ... ... Here CPU 0 is the control CPU by default and changed to the current CPU, if CPU 0 offlined. This check has to be performed under cpus_read_lock(), hence the above warning. Use get_cpu() instead of smp_processor_id() to avoid this BUG. [ rjw: Subject edits ]
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) |
|---|---|---|---|---|---|
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 3e799e815097febbcb81b472285be824f5d089f9 | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 0f91f66c568b316b19cb042cf50584467b3bdff4 | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 6904727db0eb62fb0c2dce1cf331c341d97ee4b7 | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 5a646c38f648185ee2c62f2a19da3c6f04e27612 | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 513943bf879d45005213e6f5cfb7d9e9943f589f | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 5614908434451aafbf9b24cb5247cf1d21269f76 | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 6e2a347b304224b2aeb1c0ea000d1cf8a02cc592 | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 418fae0700e85a498062424f8656435c32cdb200 | Unavailable | None listed |
| d6d71ee4a14ae602db343ec48c491851d7ec5267 | affected | git | 68b99e94a4a2db6ba9b31fe0485e057b9354a640 | 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) |
|---|---|---|---|---|---|
| 3.9 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.9 | Unavailable | None listed |
| 4.9.331 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.296 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.262 | unaffected | semver | Unavailable | 4.19.* | 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 |