{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-46021", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.092Z", "datePublished": "2026-05-27T12:56:23.515Z", "dateUpdated": "2026-10-15T01:19:59.016Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-19T11:59:02.097Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal: core: Fix thermal zone governor cleanup issues\n\nIf thermal_zone_device_register_with_trips() fails after adding\na thermal governor to the thermal zone being registered, the\ngovernor is not removed from it as appropriate which may lead to\na memory leak.\n\nIn turn, thermal_zone_device_unregister() calls thermal_set_governor()\nwithout acquiring the thermal zone lock beforehand which may race with\na governor update via sysfs and may lead to a use-after-free in that\ncase.\n\nAddress these issues by adding two thermal_set_governor() calls, one to\nthermal_release() to remove the governor from the given thermal zone,\nand one to the thermal zone registration error path to cover failures\npreceding the thermal zone device registration." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/thermal/thermal_core.c" ], "versions": [ { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "a172fa18bc370b776ac1510abb0dcb50a7a35fac", "status": "affected", "versionType": "git" }, { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "8e563d8db50f303171aceb79eec0807e7ba06951", "status": "affected", "versionType": "git" }, { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "d4eb861adde5ce22e459fbd29366f47bb2167977", "status": "affected", "versionType": "git" }, { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "37a430a2d4e66ec8238da6c7f7e48809bf265e13", "status": "affected", "versionType": "git" }, { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "f412e541d25a3dfaf3d53e012ade6ff03cae8a45", "status": "affected", "versionType": "git" }, { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "75f8f3c3e09122270986de9d7aa347d701676761", "status": "affected", "versionType": "git" }, { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "64d4ebf91d082034bbc5ae3ba2d7fd800bc02d06", "status": "affected", "versionType": "git" }, { "version": "e33df1d2f3a0141cd79e770f31999ba0dd7ebfa8", "lessThan": "41ff66baf81c6541f4f985dd7eac4494d03d9440", "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/thermal_core.c" ], "versions": [ { "version": "4.2", "status": "affected" }, { "version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.259", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.210", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.176", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.86", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "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": "4.2", "versionEndExcluding": "5.10.259" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "5.15.210" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.1.176" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.6.140" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.12.86" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "6.18.27" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.0.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.2", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/a172fa18bc370b776ac1510abb0dcb50a7a35fac" }, { "url": "https://git.kernel.org/stable/c/8e563d8db50f303171aceb79eec0807e7ba06951" }, { "url": "https://git.kernel.org/stable/c/d4eb861adde5ce22e459fbd29366f47bb2167977" }, { "url": "https://git.kernel.org/stable/c/37a430a2d4e66ec8238da6c7f7e48809bf265e13" }, { "url": "https://git.kernel.org/stable/c/f412e541d25a3dfaf3d53e012ade6ff03cae8a45" }, { "url": "https://git.kernel.org/stable/c/75f8f3c3e09122270986de9d7aa347d701676761" }, { "url": "https://git.kernel.org/stable/c/64d4ebf91d082034bbc5ae3ba2d7fd800bc02d06" }, { "url": "https://git.kernel.org/stable/c/41ff66baf81c6541f4f985dd7eac4494d03d9440" } ], "title": "thermal: core: Fix thermal zone governor cleanup issues", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:19:59.016Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": 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