{"id":"AZL-58789","summary":"CVE-2024-26686 affecting package kernel for versions less than 6.6.82.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/proc: do_task_stat: use sig-\u003estats_lock to gather the threads/children stats\n\nlock_task_sighand() can trigger a hard lockup.  If NR_CPUS threads call\ndo_task_stat() at the same time and the process has NR_THREADS, it will\nspin with irqs disabled O(NR_CPUS * NR_THREADS) time.\n\nChange do_task_stat() to use sig-\u003estats_lock to gather the statistics\noutside of -\u003esiglock protected section, in the likely case this code will\nrun lockless.","modified":"2026-04-01T05:19:20.985978Z","published":"2024-04-03T15:15:52Z","upstream":["CVE-2024-26686"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26686"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.82.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-58789.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}