Orta CVSS 5.5
CVE-2022-50494: Linux Kernel: güvenlik açığı
Açıklama (NVD)
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 ]
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS
- %0,16 (yüzdelik 6)
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 3.9 | — | 4.9.331 |
| linux-linux-kernel | 4.10 | — | 4.14.296 |
| linux-linux-kernel | 4.15 | — | 4.19.262 |
| linux-linux-kernel | 4.20 | — | 5.4.220 |
| linux-linux-kernel | 5.5 | — | 5.10.150 |
| linux-linux-kernel | 5.11 | — | 5.15.75 |
| linux-linux-kernel | 5.16 | — | 5.19.17 |
| linux-linux-kernel | 6.0 | — | 6.0.3 |