CVE-2022-49010 (GCVE-0-2022-49010)

Vulnerability from cvelistv5 – Published: 2024-10-21 20:06 – Updated: 2025-05-04 08:27
VLAI?
Title
hwmon: (coretemp) Check for null before removing sysfs attrs
Summary
In the Linux kernel, the following vulnerability has been resolved: hwmon: (coretemp) Check for null before removing sysfs attrs If coretemp_add_core() gets an error then pdata->core_data[indx] is already NULL and has been kfreed. Don't pass that to sysfs_remove_group() as that will crash in sysfs_remove_group(). [Shortened for readability] [91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20_label' <cpu offline> [91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188 [91855.165103] #PF: supervisor read access in kernel mode [91855.194506] #PF: error_code(0x0000) - not-present page [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfs_remove_group+0xc/0x80 ... [91855.796571] Call Trace: [91855.810524] coretemp_cpu_offline+0x12b/0x1dd [coretemp] [91855.841738] ? coretemp_cpu_online+0x180/0x180 [coretemp] [91855.871107] cpuhp_invoke_callback+0x105/0x4b0 [91855.893432] cpuhp_thread_fun+0x8e/0x150 ... Fix this by checking for NULL first.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < fb503d077ff7b43913503eaf72995d1239028b99 (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 070d5ea4a0592a37ad96ce7f7b6b024f90bb009f (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 280110db1a7d62ad635b103bafc3ae96e8bef75c (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 89eecabe6a47403237f45aafd7d24f93cb973653 (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < f06e0cd01eab954bd5f2190c9faa79bb5357e05b (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < 7692700ac818866d138a8de555130a6e70e6ac16 (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < ae6c8b6e5d5628df1c475c0a8fca1465e205c95b (git)
Affected: 199e0de7f5df31a4fc485d4aaaf8a07718252ace , < a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a (git)
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    Linux Linux Affected: 3.0
Unaffected: 0 , < 3.0 (semver)
Unaffected: 4.9.335 , ≤ 4.9.* (semver)
Unaffected: 4.14.301 , ≤ 4.14.* (semver)
Unaffected: 4.19.268 , ≤ 4.19.* (semver)
Unaffected: 5.4.226 , ≤ 5.4.* (semver)
Unaffected: 5.10.158 , ≤ 5.10.* (semver)
Unaffected: 5.15.82 , ≤ 5.15.* (semver)
Unaffected: 6.0.12 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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