{"id":"CVE-2024-38618","summary":"ALSA: timer: Set lower bound of start tick time","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: timer: Set lower bound of start tick time\n\nCurrently ALSA timer doesn't have the lower limit of the start tick\ntime, and it allows a very small size, e.g. 1 tick with 1ns resolution\nfor hrtimer.  Such a situation may lead to an unexpected RCU stall,\nwhere  the callback repeatedly queuing the expire update, as reported\nby fuzzer.\n\nThis patch introduces a sanity check of the timer start tick time, so\nthat the system returns an error when a too small start size is set.\nAs of this patch, the lower limit is hard-coded to 100us, which is\nsmall enough but can still work somehow.","modified":"2026-04-16T04:39:48.981990154Z","published":"2024-06-19T13:56:17.422Z","related":["SUSE-SU-2024:2360-1","SUSE-SU-2024:2372-1","SUSE-SU-2024:2381-1","SUSE-SU-2024:2394-1","SUSE-SU-2024:2561-1","SUSE-SU-2024:2571-1","SUSE-SU-2024:2896-1","SUSE-SU-2024:2939-1","SUSE-SU-2024:2973-1","SUSE-SU-2024:3189-1","SUSE-SU-2024:3251-1","SUSE-SU-2024:3252-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38618.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2c95241ac5fc90c929d6c0c023e84bf0d30e84c3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/68396c825c43664b20a3a1ba546844deb2b4e48f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/74bfb8d90f2601718ae203faf45a196844c01fa1"},{"type":"WEB","url":"https://git.kernel.org/stable/c/83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bdd0aa055b8ec7e24bbc19513f3231958741d0ab"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ceab795a67dd28dd942d0d8bba648c6c0f7a044b"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/38xxx/CVE-2024-38618.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-38618"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"bbaf5e97337287479eb78dbc3822d9560bbfd2e2"},{"fixed":"68396c825c43664b20a3a1ba546844deb2b4e48f"},{"fixed":"74bfb8d90f2601718ae203faf45a196844c01fa1"},{"fixed":"bdd0aa055b8ec7e24bbc19513f3231958741d0ab"},{"fixed":"83f0ba8592b9e258fd80ac6486510ab1dcd7ad6e"},{"fixed":"ceab795a67dd28dd942d0d8bba648c6c0f7a044b"},{"fixed":"2c95241ac5fc90c929d6c0c023e84bf0d30e84c3"},{"fixed":"abb1ad69d98cf1ff25bb14fff0e7c3f66239e1cd"},{"fixed":"4a63bd179fa8d3fcc44a0d9d71d941ddd62f0c4e"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-38618.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L"}]}