{"id":"CVE-2026-74461","summary":"i2c: imx: Cancel hrtimer before clearing slave pointer","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: imx: Cancel hrtimer before clearing slave pointer\n\nIn i2c_imx_unreg_slave(), the slave pointer is set to NULL after\ndisabling interrupts.  However, a pending interrupt might already\nhave started the hrtimer (i2c_imx_slave_timeout) before the pointer\nwas cleared.  If the hrtimer fires after i2c_imx-\u003eslave is set to\nNULL, the timer callback i2c_imx_slave_finish_op() will call\ni2c_imx_slave_event() with a NULL slave pointer, which results in a\nuse-after-free / NULL pointer dereference.\n\nFix by canceling the hrtimer and waiting for it to complete after\ndisabling interrupts, before clearing the slave pointer.","modified":"2026-08-18T03:56:29.815414066Z","published":"2026-08-15T12:27:01.924Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74461.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/6ac7702b6cc2b94aaed9ef2d95bfbefcdc90061f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/753060f2b77ff2f386addbd3ecadb95b9f90cddd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a8a1f9ac3d763e721586f15479ef9140b216ddf3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/affd62f5719a78135b7441aa49c8cab3c3b5e838"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dab4762ee7f3fd0a01980d5407ba48d0261d3bff"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74461.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74461"},{"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":"f7414cd6923fd7f78e57086fc964ba2dc25db5c1"},{"fixed":"a8a1f9ac3d763e721586f15479ef9140b216ddf3"},{"fixed":"753060f2b77ff2f386addbd3ecadb95b9f90cddd"},{"fixed":"affd62f5719a78135b7441aa49c8cab3c3b5e838"},{"fixed":"dab4762ee7f3fd0a01980d5407ba48d0261d3bff"},{"fixed":"6ac7702b6cc2b94aaed9ef2d95bfbefcdc90061f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74461.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"6.6.151"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.103"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.44"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74461.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}