CVE-2022-49010

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Source
https://cve.org/CVERecord?id=CVE-2022-49010
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49010.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49010
Downstream
Related
Published
2024-10-21T20:06:21.423Z
Modified
2026-04-11T12:43:26.204037Z
Summary
hwmon: (coretemp) Check for null before removing sysfs attrs
Details

In the Linux kernel, the following vulnerability has been resolved:

hwmon: (coretemp) Check for null before removing sysfs attrs

If coretempaddcore() gets an error then pdata->coredata[indx] is already NULL and has been kfreed. Don't pass that to sysfsremovegroup() as that will crash in sysfsremove_group().

[Shortened for readability] [91854.020159] sysfs: cannot create duplicate filename '/devices/platform/coretemp.0/hwmon/hwmon2/temp20label' <cpu offline> [91855.126115] BUG: kernel NULL pointer dereference, address: 0000000000000188 [91855.165103] #PF: supervisor read access in kernel mode [91855.194506] #PF: errorcode(0x0000) - not-present page [91855.224445] PGD 0 P4D 0 [91855.238508] Oops: 0000 [#1] PREEMPT SMP PTI ... [91855.342716] RIP: 0010:sysfsremovegroup+0xc/0x80 ... [91855.796571] Call Trace: [91855.810524] coretempcpuoffline+0x12b/0x1dd [coretemp] [91855.841738] ? coretempcpuonline+0x180/0x180 [coretemp] [91855.871107] cpuhpinvokecallback+0x105/0x4b0 [91855.893432] cpuhpthreadfun+0x8e/0x150 ...

Fix this by checking for NULL first.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49010.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
199e0de7f5df31a4fc485d4aaaf8a07718252ace
Fixed
fb503d077ff7b43913503eaf72995d1239028b99
Fixed
070d5ea4a0592a37ad96ce7f7b6b024f90bb009f
Fixed
280110db1a7d62ad635b103bafc3ae96e8bef75c
Fixed
89eecabe6a47403237f45aafd7d24f93cb973653
Fixed
f06e0cd01eab954bd5f2190c9faa79bb5357e05b
Fixed
7692700ac818866d138a8de555130a6e70e6ac16
Fixed
ae6c8b6e5d5628df1c475c0a8fca1465e205c95b
Fixed
a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49010.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.0.0
Fixed
4.9.335
Type
ECOSYSTEM
Events
Introduced
4.10.0
Fixed
4.14.301
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.268
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.226
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.158
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.82
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.0.12

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49010.json"