CVE-2024-26654

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ALSA: sh: aica: reorder cleanup operations to avoid UAF bugs The dreamcastcard->timer could schedule the spu_dma_work and the spu_dma_work could also arm the dreamcastcard->timer. When the snd_pcm_substream is closing, the aica_channel will be deallocated. But it could still be dereferenced in the worker thread. The reason is that del_timer() will return directly regardless of whether the timer handler is running or not and the worker could be rescheduled in the timer handler. As a result, the UAF bug will happen. The racy...

Affected product and versions

Product

Linux Linux, linux kernel, debian linux

Affected versions

>= 198de43d758ca2700e2b52b49c0b189b4931466c < eeb2a2ca0b8de7e1c66afaf719529154e7dc60b2, >= 198de43d758ca2700e2b52b49c0b189b4931466c < 4206ad65a0ee76920041a755bd3c17c6ba59bba2, >= 198de43d758ca2700e2b52b49c0b189b4931466c < aa39e6878f61f50892ee2dd9d2176f72020be845, >= 198de43d758ca2700e2b52b49c0b189b4931466c < 8c990221681688da34295d6d76cc2f5b963e83f5, >= 198de43d758ca2700e2b52b49c0b189b4931466c < 9d66ae0e7bb78b54e1e0525456c6b54e1d132046, >= 198de43d758ca2700e2b52b49c0b189b4931466c < 61d4787692c1fccdc268ffa7a891f9c149f50901, >= 198de43d758ca2700e2b52b49c0b189b4931466c < e955e8a7f38a856fc6534ba4e6bffd4d5cc80ac3, >= 198de43d758ca2700e2b52b49c0b189b4931466c < 3c907bf56905de7d27b329afaf59c2fb35d17b04, >= 198de43d758ca2700e2b52b49c0b189b4931466c < 051e0840ffa8ab25554d6b14b62c9ab9e4901457, >= 2.6.23, >= 2.6.23 < 4.19.312, >= 4.20 < 5.4.274, >= 5.5 < 5.10.215, >= 5.11 < 5.15.154, >= 5.16 < 6.1.84, >= 6.2 < 6.6.24, >= 6.7 < 6.7.12, >= 6.8 < 6.8.3, 6.9, 10.0

Fixed versions

4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, 6.7.12, 6.8.3

Technical data

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-416