CVE-2022-49010hwmon: (coretemp) Check for null before removing sysfs attrs
- 5.5MediumCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 19 months later
· 19 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < fb503d077ff7b43913503eaf72995d1239028b99
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < 070d5ea4a0592a37ad96ce7f7b6b024f90bb009f
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < 280110db1a7d62ad635b103bafc3ae96e8bef75c
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < 89eecabe6a47403237f45aafd7d24f93cb973653
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < f06e0cd01eab954bd5f2190c9faa79bb5357e05b
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < 7692700ac818866d138a8de555130a6e70e6ac16
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < ae6c8b6e5d5628df1c475c0a8fca1465e205c95b
- affected 199e0de7f5df31a4fc485d4aaaf8a07718252ace – < a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a
- affected 3.0
- unaffected < 3.0
- unaffected 4.9.335 – ≤ 4.9.*
- unaffected 4.14.301 – ≤ 4.14.*
- unaffected 4.19.268 – ≤ 4.19.*
- unaffected 5.4.226 – ≤ 5.4.*
- unaffected 5.10.158 – ≤ 5.10.*
- unaffected 5.15.82 – ≤ 5.15.*
- unaffected 6.0.12 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99 (opens in a new tab)
- https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f (opens in a new tab)
- https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c (opens in a new tab)
- https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653 (opens in a new tab)
- https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b (opens in a new tab)
- https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16 (opens in a new tab)
- https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b (opens in a new tab)
- https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-53894 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-49010)Record last updated .