CVE - CVE-2022-49010

CVE-ID
CVE-2022-49010	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f URL:https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f MISC:https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c URL:https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c MISC:https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16 URL:https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16 MISC:https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653 URL:https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653 MISC:https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a URL:https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a MISC:https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b URL:https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b MISC:https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b URL:https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b MISC:https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99 URL:https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99
Assigning CNA
kernel.org
Date Record Created
20240822	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240822)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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