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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49010 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f kernel.org Patch 
https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c kernel.org Patch 
https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16 kernel.org Patch 
https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653 kernel.org Patch 
https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a kernel.org Patch 
https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b kernel.org Patch 
https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b kernel.org Patch 
https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49010
NVD Published Date:
10/21/2024
NVD Last Modified:
10/24/2024
Source:
kernel.org