{"id":"CVE-2026-23104","state":"PUBLISHED","title":"ice: fix devlink reload call trace","description":"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().","publishedAt":"2026-02-04T16:08:25.604Z","updatedAt":"2026-05-11T22:00:11.918Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4da71a77fc3be1fcb680c8d78e1a1fb8017905ad","status":"affected","lessThan":"8ac7dd0f813fb65ff2fd9543900c3009f8e84110","versionType":"git"},{"version":"4da71a77fc3be1fcb680c8d78e1a1fb8017905ad","status":"affected","lessThan":"87c1dacca197cc64e06fedeb269e3dd6699bae60","versionType":"git"},{"version":"4da71a77fc3be1fcb680c8d78e1a1fb8017905ad","status":"affected","lessThan":"d3f867e7a04678640ebcbfb81893c59f4af48586","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_main.c"]}],"references":["https://git.kernel.org/stable/c/8ac7dd0f813fb65ff2fd9543900c3009f8e84110","https://git.kernel.org/stable/c/87c1dacca197cc64e06fedeb269e3dd6699bae60","https://git.kernel.org/stable/c/d3f867e7a04678640ebcbfb81893c59f4af48586"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23104.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23104","state":"PUBLISHED","datePublished":"2026-02-04T16:08:25.604Z","dateUpdated":"2026-05-11T22:00:11.918Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:45.966Z"},"containers":{"cna":{"title":"ice: fix devlink reload call trace","descriptions":[{"lang":"en","value":"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()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"4da71a77fc3be1fcb680c8d78e1a1fb8017905ad","status":"affected","lessThan":"8ac7dd0f813fb65ff2fd9543900c3009f8e84110","versionType":"git"},{"version":"4da71a77fc3be1fcb680c8d78e1a1fb8017905ad","status":"affected","lessThan":"87c1dacca197cc64e06fedeb269e3dd6699bae60","versionType":"git"},{"version":"4da71a77fc3be1fcb680c8d78e1a1fb8017905ad","status":"affected","lessThan":"d3f867e7a04678640ebcbfb81893c59f4af48586","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.8","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/ice/ice_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/8ac7dd0f813fb65ff2fd9543900c3009f8e84110"},{"url":"https://git.kernel.org/stable/c/87c1dacca197cc64e06fedeb269e3dd6699bae60"},{"url":"https://git.kernel.org/stable/c/d3f867e7a04678640ebcbfb81893c59f4af48586"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:00:11.918Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.12.78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}