5.5 Medium

CVE-2024-50205 In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-lib: Avoid division by zero in…

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-lib: Avoid division by zero in apply_constraint_to_size() The step variable is initialized to zero. It is changed in the loop, but if it's not changed it will remain zero. Add a variable check before the division. The observed behavior was introduced by commit 826b5de90c0b ("ALSA: firewire-lib: fix insufficient PCM rule for period/buffer size"), and it is difficult to show that any of the interval parameters will satisfy the snd_interval_test() condition with data from the amdtp_rate_table[] table. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products and versions

Product	Affected versions	Fixed in
Linux 6.12	earliest → < 6.12	6.12
Linux 6.11	earliest → < 6.11.6	6.11.6
Linux 6.6	earliest → < 6.6.59	6.6.59
Linux 6.1	earliest → < 6.1.115	6.1.115
Linux 5.15	earliest → < 5.15.170	5.15.170
Linux 5.10	earliest → < 5.10.229	5.10.229
Linux 5.4	earliest → < 5.4.285	5.4.285
Linux	4.20	No fix stated
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1	earliest → < 1.1.1	1.1.1