CVE-2022-49010

Oct. 24, 2024, 7:03 p.m.

5.5
Medium

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.

Product(s) Impacted

Vendor Product Versions
Linux
  • Linux Kernel
  • *, 6.1

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-476
NULL Pointer Dereference
A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel 6.1 rc1 / / / / / /
o linux linux_kernel 6.1 rc2 / / / / / /
o linux linux_kernel 6.1 rc3 / / / / / /
o linux linux_kernel 6.1 rc4 / / / / / /
o linux linux_kernel 6.1 rc5 / / / / / /
o linux linux_kernel 6.1 rc6 / / / / / /
o linux linux_kernel 6.1 rc7 / / / / / /

References

https://git.kernel.org/stable/c/070d5ea4a0592a37ad96ce7f7b6b024f90bb009f
https://git.kernel.org/stable/c/280110db1a7d62ad635b103bafc3ae96e8bef75c
https://git.kernel.org/stable/c/7692700ac818866d138a8de555130a6e70e6ac16
https://git.kernel.org/stable/c/89eecabe6a47403237f45aafd7d24f93cb973653
https://git.kernel.org/stable/c/a89ff5f5cc64b9fe7a992cf56988fd36f56ca82a
https://git.kernel.org/stable/c/ae6c8b6e5d5628df1c475c0a8fca1465e205c95b
https://git.kernel.org/stable/c/f06e0cd01eab954bd5f2190c9faa79bb5357e05b
https://git.kernel.org/stable/c/fb503d077ff7b43913503eaf72995d1239028b99

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
CWE-476
2024-10-21
CVE-2022-49010

CVSS Score

5.5 / 10

CVSS Data - 3.1

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH

    • CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

    View Vector String

Timeline

Published: Oct. 21, 2024, 8:15 p.m.
Last Modified: Oct. 24, 2024, 7:03 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.