CVE-2024-38618

In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Set lower bound of start tick time Currently ALSA timer doesn't have the lower limit of the start tick time, and it allows a very small size, e.g. 1 tick with 1ns resolution for hrtimer. Such a situation may lead to an unexpected RCU stall, where the callback repeatedly queuing the expire update, as reported by fuzzer. This patch introduces a sanity check of the timer start tick time, so that the system returns an error when a too small start size is set. As of this patch, the lower limit is hard-coded to 100us, which is small enough but can still work somehow.

• linux linux kernel (< 4.19.316) • linux linux kernel (>= 4.20 < 5.4.278) • linux linux kernel (>= 5.5 < 5.10.219) • linux linux kernel (>= 5.11 < 5.15.161) • linux linux kernel (>= 5.16 < 6.1.93) • linux linux kernel (>= 6.2 < 6.6.33) • linux linux kernel (>= 6.7 < 6.9.3)