{"id":"CVE-2021-47357","details":"In the Linux kernel, the following vulnerability has been resolved:\n\natm: iphase: fix possible use-after-free in ia_module_exit()\n\nThis module's remove path calls del_timer(). However, that function\ndoes not wait until the timer handler finishes. This means that the\ntimer handler may still be running after the driver's remove function\nhas finished, which would result in a use-after-free.\n\nFix by calling del_timer_sync(), which makes sure the timer handler\nhas finished, and unable to re-schedule itself.","modified":"2026-03-13T05:16:32.245580Z","published":"2024-05-21T15:15:22Z","related":["SUSE-SU-2024:1979-1","SUSE-SU-2024:1983-1","SUSE-SU-2024:2184-1"],"references":[{"type":"FIX","url":"https://git.kernel.org/stable/c/9e161687855175334ca93c6c3ccb221731194479"},{"type":"FIX","url":"https://git.kernel.org/stable/c/a832ee2f2145f57443b2d565f8cb5490e8339f42"},{"type":"FIX","url":"https://git.kernel.org/stable/c/c9172498d4d62c9b64e5fb37c1ee0343e65fe51b"},{"type":"FIX","url":"https://git.kernel.org/stable/c/d1fb12412874c94ad037e11d0ecdd1140a439297"},{"type":"FIX","url":"https://git.kernel.org/stable/c/e759ff76ebbbfcdcf83b6634c54dc47828573d8b"},{"type":"FIX","url":"https://git.kernel.org/stable/c/1c72e6ab66b9598cac741ed397438a52065a8f1f"},{"type":"FIX","url":"https://git.kernel.org/stable/c/b58d246a058ae88484758cd4ab27b3180fd5ecf8"},{"type":"FIX","url":"https://git.kernel.org/stable/c/bcdd2be48edd8c6867fb44112cb8d18086beae29"},{"type":"FIX","url":"https://git.kernel.org/stable/c/89ce0b0747f319eb70f85bc820dcc43cebbd5417"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47357.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"4.4.276"}]},{"events":[{"introduced":"4.5"},{"fixed":"4.9.276"}]},{"events":[{"introduced":"4.10"},{"fixed":"4.14.240"}]},{"events":[{"introduced":"4.15"},{"fixed":"4.19.198"}]},{"events":[{"introduced":"4.20"},{"fixed":"5.4.133"}]},{"events":[{"introduced":"5.5"},{"fixed":"5.10.51"}]},{"events":[{"introduced":"5.11"},{"fixed":"5.12.18"}]},{"events":[{"introduced":"5.13"},{"fixed":"5.13.3"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}