CVE-2022-49530

HIGH EPSS 17.3%
Published Feb 26, 20251y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Feb 26, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/pm: fix double free in si_parse_power_table() In function si_parse_power_table(), array adev->pm.dpm.ps and its member is allocated. If the allocation of each member fails, the array itself is freed and returned with an error code. However, the array is later freed again in si_dpm_fini() function which is called when the function returns an error. This leads to potential double free of the array adev->pm.dpm.ps, as well as leak of its array members, since the members are not freed in the allocation function and the array is not nulled when freed. In addition adev->pm.dpm.num_ps, which keeps track of the allocated array member, is not updated until the member allocation is successfully finished, this could also lead to either use after free, or uninitialized variable access in si_dpm_fini(). Fix this by postponing the free of the array until si_dpm_fini() and increment adev->pm.dpm.num_ps everytime the array member is allocated.

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
17.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-415

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel* <4.9.318
linuxlinux_kernel*≥4.10  –  <4.14.283
linuxlinux_kernel*≥4.15  –  <4.19.247
linuxlinux_kernel*≥4.20  –  <5.4.198
linuxlinux_kernel*≥5.5  –  <5.10.121
linuxlinux_kernel*≥5.11  –  <5.15.46
linuxlinux_kernel*≥5.16  –  <5.17.14
linuxlinux_kernel*≥5.18  –  <5.18.3

References 9

  • git.kernel.org https://git.kernel.org/stable/c/2615464854505188f909d0c07c37a6623693b5c7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/43eb9b667b95f2a31c63e8949b0d2161b9be59c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c5bdaa1325be7f04b79ea992ab216739192d342
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a5ce7051db044290b1a95045ff03c249005a3aa4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/af832028af6f44c6c45645757079c4ed6884ade5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c0e811c4ccf3b42705976285e3a94cc82dea7300
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ca1ce206894dd976275c78ee38dbc19873f22de9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07b
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/2615464854505188f909d0c07c37a6623693b5c7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/43eb9b667b95f2a31c63e8949b0d2161b9be59c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6c5bdaa1325be7f04b79ea992ab216739192d342
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a5ce7051db044290b1a95045ff03c249005a3aa4
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/af832028af6f44c6c45645757079c4ed6884ade5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c0e811c4ccf3b42705976285e3a94cc82dea7300
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ca1ce206894dd976275c78ee38dbc19873f22de9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f3fa2becf2fc25b6ac7cf8d8b1a2e4a86b3b72bd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07b
    Patch