Description
In the Linux kernel, the following vulnerability has been resolved: backlight: led_bl: Hold led_access lock when calling led_sysfs_disable() Lockdep detects the following issue on led-backlight removal: [ 142.315935] ------------[ cut here ]------------ [ 142.315954] WARNING: CPU: 2 PID: 292 at drivers/leds/led-core.c:455 led_sysfs_enable+0x54/0x80 ... [ 142.500725] Call trace: [ 142.503176] led_sysfs_enable+0x54/0x80 (P) [ 142.507370] led_bl_remove+0x80/0xa8 [led_bl] [ 142.511742] platform_remove+0x30/0x58 [ 142.515501] device_remove+0x54/0x90 ... Indeed, led_sysfs_enable() has to be called with the led_access lock held. Hold the lock when calling led_sysfs_disable().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
ae232e45acf9621f2c96b41ca3af006ac7552c33 to < 87d947a0607be384bfe7bb0935884a711e35ca07affectedae232e45acf9621f2c96b41ca3af006ac7552c33 to < 74c7d67a3c305fc1fa03c32a838e8446fb7aee14affectedae232e45acf9621f2c96b41ca3af006ac7552c33 to < b447885ec9130cf86f355e011dc6b94d6ccfb5b7affectedae232e45acf9621f2c96b41ca3af006ac7552c33 to < 1c82f5a393d8b9a5c1ea032413719862098afd4baffectedae232e45acf9621f2c96b41ca3af006ac7552c33 to < 61a5c565fd2442d3128f3bab5f022658adc3a4e6affectedae232e45acf9621f2c96b41ca3af006ac7552c33 to < 11d128f7eacec276c75cf4712880a6307ca9c885affectedae232e45acf9621f2c96b41ca3af006ac7552c33 to < b8ddf5107f53789448900f04fa220f34cd2f777eaffectedae232e45acf9621f2c96b41ca3af006ac7552c33 to < 276822a00db3c1061382b41e72cafc09d6a0ec30affected
Linux Linux
Default version status: affected
5.6affected0 to < 5.6unaffected5.10.237 to ≤ 5.10.*unaffected5.15.181 to ≤ 5.15.*unaffected6.1.136 to ≤ 6.1.*unaffected6.6.88 to ≤ 6.6.*unaffected6.12.24 to ≤ 6.12.*unaffected6.13.12 to ≤ 6.13.*unaffected6.14.3 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/87d947a0607be384bfe7bb0935884a711e35ca07 ↗
- https://git.kernel.org/stable/c/74c7d67a3c305fc1fa03c32a838e8446fb7aee14 ↗
- https://git.kernel.org/stable/c/b447885ec9130cf86f355e011dc6b94d6ccfb5b7 ↗
- https://git.kernel.org/stable/c/1c82f5a393d8b9a5c1ea032413719862098afd4b ↗
- https://git.kernel.org/stable/c/61a5c565fd2442d3128f3bab5f022658adc3a4e6 ↗
- https://git.kernel.org/stable/c/11d128f7eacec276c75cf4712880a6307ca9c885 ↗
- https://git.kernel.org/stable/c/b8ddf5107f53789448900f04fa220f34cd2f777e ↗
- https://git.kernel.org/stable/c/276822a00db3c1061382b41e72cafc09d6a0ec30 ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html ↗
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html ↗