{"id":"CVE-2022-49010","state":"PUBLISHED","title":"hwmon: (coretemp) Check for null before removing sysfs attrs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (coretemp) Check for null before removing sysfs attrs\n\nIf coretemp_add_core() gets an error then pdata->core_data[indx]\nis already NULL and has been kfreed. Don't pass that to\nsysfs_remove_group() as that will crash in sysfs_remove_group().\n\n[Shortened for readability]\n[91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label'\n<cpu offline>\n[91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188\n[91855.165103] #PF: supervisor read access in kernel mode\n[91855.194506] #PF: error_code(0x0000) - not-present page\n[91855.224445] PGD 0 P4D 0\n[91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI\n...\n[91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80\n...\n[91855.796571] Call Trace:\n[91855.810524]  coretemp_cpu_offline+0x12b/0x1dd [coretemp]\n[91855.841738]  ? coretemp_cpu_online+0x180/0x180 [coretemp]\n[91855.871107]  cpuhp_invoke_callback+0x105/0x4b0\n[91855.893432]  cpuhp_thread_fun+0x8e/0x150\n...\n\nFix this by checking for NULL first.","publishedAt":"2024-10-21T20:06:21.423Z","updatedAt":"2026-05-11T18:51:27.659Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"fb503d077ff7b43913503eaf72995d1239028b99","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"070d5ea4a0592a37ad96ce7f7b6b024f90bb009f","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"280110db1a7d62ad635b103bafc3ae96e8bef75c","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"89eecabe6a47403237f45aafd7d24f93cb973653","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"f06e0cd01eab954bd5f2190c9faa79bb5357e05b","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"7692700ac818866d138a8de555130a6e70e6ac16","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"ae6c8b6e5d5628df1c475c0a8fca1465e205c95b","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/coretemp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.0","versionType":"semver"},{"version":"4.9.335","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.301","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.268","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.226","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.158","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.82","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.12","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/coretemp.c"]}],"references":["https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99","https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f","https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c","https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653","https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b","https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16","https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b","https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49010.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49010","state":"PUBLISHED","datePublished":"2024-10-21T20:06:21.423Z","dateUpdated":"2026-05-11T18:51:27.659Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-08-22T01:27:53.644Z"},"containers":{"cna":{"title":"hwmon: (coretemp) Check for null before removing sysfs attrs","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (coretemp) Check for null before removing sysfs attrs\n\nIf coretemp_add_core() gets an error then pdata->core_data[indx]\nis already NULL and has been kfreed. Don't pass that to\nsysfs_remove_group() as that will crash in sysfs_remove_group().\n\n[Shortened for readability]\n[91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label'\n<cpu offline>\n[91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188\n[91855.165103] #PF: supervisor read access in kernel mode\n[91855.194506] #PF: error_code(0x0000) - not-present page\n[91855.224445] PGD 0 P4D 0\n[91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI\n...\n[91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80\n...\n[91855.796571] Call Trace:\n[91855.810524]  coretemp_cpu_offline+0x12b/0x1dd [coretemp]\n[91855.841738]  ? coretemp_cpu_online+0x180/0x180 [coretemp]\n[91855.871107]  cpuhp_invoke_callback+0x105/0x4b0\n[91855.893432]  cpuhp_thread_fun+0x8e/0x150\n...\n\nFix this by checking for NULL first."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"fb503d077ff7b43913503eaf72995d1239028b99","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"070d5ea4a0592a37ad96ce7f7b6b024f90bb009f","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"280110db1a7d62ad635b103bafc3ae96e8bef75c","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"89eecabe6a47403237f45aafd7d24f93cb973653","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"f06e0cd01eab954bd5f2190c9faa79bb5357e05b","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"7692700ac818866d138a8de555130a6e70e6ac16","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"ae6c8b6e5d5628df1c475c0a8fca1465e205c95b","versionType":"git"},{"version":"199e0de7f5df31a4fc485d4aaaf8a07718252ace","status":"affected","lessThan":"a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/coretemp.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.0","versionType":"semver"},{"version":"4.9.335","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.301","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.268","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.226","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.158","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.82","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.12","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/coretemp.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99"},{"url":"https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f"},{"url":"https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c"},{"url":"https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653"},{"url":"https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b"},{"url":"https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16"},{"url":"https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b"},{"url":"https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:51:27.659Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"4.9.335"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"4.14.301"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"4.19.268"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.4.226"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.10.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.15.82"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.0.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2022-49010","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-10-22T13:13:58.658832Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-22T13:18:38.960Z"}}]}}}