{"id":"CVE-2026-23104","summary":"ice: fix devlink reload call trace","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix devlink reload call trace\n\nCommit 4da71a77fc3b (\"ice: read internal temperature sensor\") introduced\ninternal temperature sensor reading via HWMON. ice_hwmon_init() was added\nto ice_init_feature() and ice_hwmon_exit() was added to ice_remove(). As a\nresult if devlink reload is used to reinit the device and then the driver\nis removed, a call trace can occur.\n\nBUG: unable to handle page fault for address: ffffffffc0fd4b5d\nCall Trace:\n string+0x48/0xe0\n vsnprintf+0x1f9/0x650\n sprintf+0x62/0x80\n name_show+0x1f/0x30\n dev_attr_show+0x19/0x60\n\nThe call trace repeats approximately every 10 minutes when system\nmonitoring tools (e.g., sadc) attempt to read the orphaned hwmon sysfs\nattributes that reference freed module memory.\n\nThe sequence is:\n1. Driver load, ice_hwmon_init() gets called from ice_init_feature()\n2. Devlink reload down, flow does not call ice_remove()\n3. Devlink reload up, ice_hwmon_init() gets called from\n   ice_init_feature() resulting in a second instance\n4. Driver unload, ice_hwmon_exit() called from ice_remove() leaving the\n   first hwmon instance orphaned with dangling pointer\n\nFix this by moving ice_hwmon_exit() from ice_remove() to\nice_deinit_features() to ensure proper cleanup symmetry with\nice_hwmon_init().","modified":"2026-04-02T17:30:13.602852990Z","published":"2026-02-04T16:08:25.604Z","related":["CGA-f2w7-75c4-xmjj","SUSE-SU-2026:0962-1","SUSE-SU-2026:1081-1","SUSE-SU-2026:20667-1","SUSE-SU-2026:20720-1","SUSE-SU-2026:20838-1","SUSE-SU-2026:20845-1","SUSE-SU-2026:20876-1","SUSE-SU-2026:20931-1","openSUSE-SU-2026:20416-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23104.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/87c1dacca197cc64e06fedeb269e3dd6699bae60"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ac7dd0f813fb65ff2fd9543900c3009f8e84110"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3f867e7a04678640ebcbfb81893c59f4af48586"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23104.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23104"},{"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":"4da71a77fc3be1fcb680c8d78e1a1fb8017905ad"},{"fixed":"8ac7dd0f813fb65ff2fd9543900c3009f8e84110"},{"fixed":"87c1dacca197cc64e06fedeb269e3dd6699bae60"},{"fixed":"d3f867e7a04678640ebcbfb81893c59f4af48586"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23104.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.78"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.8"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-23104.json"}}],"schema_version":"1.7.5"}