Tracker / CVE-2022-48971
CVE-2022-48971
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix not cleanup led when bt_init fails bt_init() calls bt_leds_init() to register led, but if it fails later, bt_leds_cleanup() is not called to unregister it. This can cause panic if the argument "bluetooth-power" in text is freed and then another led_trigger_register() tries to access it: BUG: unable to handle page fault for address: ffffffffc06d3bc0 RIP: 0010:strcmp+0xc/0x30 Call Trace: <TASK> led_trigger_register+0x10d/0x4f0 led_trigger_register_simple+0x7d/0x100 bt_init+0x39/0xf7 [bluetooth] do_one_initcall+0xd0/0x4e0
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 4.20 → 5.4.227 |
| linux | linux_kernel · 4.9 → 4.19.269 |
| linux | linux_kernel · 5.11 → 5.15.83 |
| linux | linux_kernel · 5.16 → 6.0.13 |
| linux | linux_kernel · 5.5 → 5.10.159 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.