{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-92504", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-16T12:21:13.872Z", "datePublished": "2026-09-17T16:10:16.731Z", "dateUpdated": "2026-10-19T09:04:10.385Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:04:10.385Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal: intel: int3400: clean up ODVP on probe failures\n\nevaluate_odvp() creates per-ODVP sysfs files before the thermal zone\nand later probe resources are registered. The current unwind path only\ncalls cleanup_odvp() from the late sysfs failure path, so failures after\nevaluate_odvp() but before that label, including\nthermal_tripless_zone_device_register() failures, leave the ODVP files\nand storage behind.\n\nMove the ODVP cleanup to the common ART/TRT unwind path so every failure\nafter evaluate_odvp() releases the ODVP state. Also clear the cached\nODVP pointers in cleanup_odvp(), because evaluate_odvp() can already call\nit for partial setup failures while probe continues." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - evaluate_odvp() in int3400_thermal_probe() creates odvpN attributes on the INT3400/INTC104x ACPI platform device; after a failed unwind the UAF is hit by reading those files in odvp_show(), not by a network or radio protocol payload.\nAC:H - The leak runs only when int3400_thermal_probe() fails after evaluate_odvp() but before the old free_sysfs label (thermal_tripless_zone_device_register(), sysfs_create_group() for uuids/imok, or device_create_bin_file()), or when evaluate_odvp() itself fails after allocating attrs; those are -ENOMEM/kernfs errors the attacker cannot force.\nPR:L - evaluate_odvp() creates each odvpN with mode 0444 on priv->pdev->dev.kobj; after probe kfree(priv) via free_art_trt without cleanup_odvp(), an unprivileged local user can open those leftover files and run odvp_show() with no CAP_SYS_ADMIN.\nUI:N - The attacker reads the leftover odvpN sysfs attributes themselves; no other user must mount media, bind int3400_thermal, or confirm a prompt.\nS:U - odvp_show() dereferences the probe-freed int3400_thermal_priv in the host kernel; this is not a VM, IOMMU, or sandbox escape.\nC:H - odvp_show() evaluates odvp_attr->priv->odvp[odvp_attr->odvp] after int3400_thermal_probe() kfree(priv) on free_art_trt, a slab UAF of int3400_thermal_priv that discloses kernel memory once that object is reclaimed.\nI:H - cleanup_odvp() used to leave priv->odvp/priv->odvp_attrs set after evaluate_odvp()'s out_err path; a later evaluate_odvp() from int3400_thermal_change_mode() or INT3400_ODVP_CHANGED then writes ACPI integers through the freed odvp buffer, and remove-path cleanup_odvp() double-frees it.\nA:H - odvp_show() dereferencing the freed priv, and evaluate_odvp() writing through a dangling priv->odvp, oops or panic the kernel." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/thermal/intel/int340x_thermal/int3400_thermal.c" ], "versions": [ { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "5798c714fccf1b4939a98a812b9073da365172c8", "status": "affected", "versionType": "git" }, { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "bfd6df12ce6781e4bf1c7177dab42a8780177960", "status": "affected", "versionType": "git" }, { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "ad13e550ce51c66560bafd315eb5d09f2ee7c4ce", "status": "affected", "versionType": "git" }, { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "08df725b927512fa9672b146a00766da478b6c2e", "status": "affected", "versionType": "git" }, { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "bc0e96267a6715fcc4b81cf980034a5e65703780", "status": "affected", "versionType": "git" }, { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "d7b025d3fdf3cf8b726ce1d13f434f57477972bb", "status": "affected", "versionType": "git" }, { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "169772cd2147c517be5cfda2710d17f8c90d6f10", "status": "affected", "versionType": "git" }, { "version": "006f006f1e5c48e5ddd6515eab2c9a7b27ce1144", "lessThan": "d83dc9ce57a746a6dca28439bcc0575d26fa6986", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/thermal/intel/int340x_thermal/int3400_thermal.c" ], "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.270", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.221", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.10.270" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.15.221" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.1.188" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.6.157" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.12.110" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.18.52" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.2.6" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "7.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/5798c714fccf1b4939a98a812b9073da365172c8" }, { "url": "https://git.kernel.org/stable/c/bfd6df12ce6781e4bf1c7177dab42a8780177960" }, { "url": "https://git.kernel.org/stable/c/ad13e550ce51c66560bafd315eb5d09f2ee7c4ce" }, { "url": "https://git.kernel.org/stable/c/08df725b927512fa9672b146a00766da478b6c2e" }, { "url": "https://git.kernel.org/stable/c/bc0e96267a6715fcc4b81cf980034a5e65703780" }, { "url": "https://git.kernel.org/stable/c/d7b025d3fdf3cf8b726ce1d13f434f57477972bb" }, { "url": "https://git.kernel.org/stable/c/169772cd2147c517be5cfda2710d17f8c90d6f10" }, { "url": "https://git.kernel.org/stable/c/d83dc9ce57a746a6dca28439bcc0575d26fa6986" } ], "title": "thermal: intel: int3400: clean up ODVP on probe failures", "x_generator": { "engine": "bippy-1.2.0" } } } }