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Vulnerability · Published Feb 26, 2025 · Assigned by Linux

CVE-2022-49530drm/amd/pm: fix double free in si_parse_power_table()

High 7.8

In plain English

A high-severity double free in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 21% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 79.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.18.5-1DEBIAN-CVE-2022-49530
Debian:13linux5.18.5-1DEBIAN-CVE-2022-49530
Debian:14linux5.18.5-1DEBIAN-CVE-2022-49530
Ubuntu:22.04:LTSlinux5.15.0-47.51UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-aws5.15.0-1019.23UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-azure5.15.0-1019.24UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-gcp5.15.0-1017.23UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-gke5.15.0-1015.18UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1002.4UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-ibm5.15.0-1013.15UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1015.20UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-kvm5.15.0-1017.21UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-47.53UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1007.7UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-oracle5.15.0-1017.22UBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-raspi5.15.0-1014.16UBUNTU-CVE-2022-49530
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-49530
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-49530

Affected products (as reported)

VendorProductVersions
Linux Linux 841686df9f7d2942cfd94d024b8591fa3f74ef7c – before 2615464854505188f909d0c07c37a6623693b5c7841686df9f7d2942cfd94d024b8591fa3f74ef7c – before 6c5bdaa1325be7f04b79ea992ab216739192d342841686df9f7d2942cfd94d024b8591fa3f74ef7c – before c0e811c4ccf3b42705976285e3a94cc82dea7300841686df9f7d2942cfd94d024b8591fa3f74ef7c – before af832028af6f44c6c45645757079c4ed6884ade5841686df9f7d2942cfd94d024b8591fa3f74ef7c – before ca1ce206894dd976275c78ee38dbc19873f22de9841686df9f7d2942cfd94d024b8591fa3f74ef7c – before a5ce7051db044290b1a95045ff03c249005a3aa4841686df9f7d2942cfd94d024b8591fa3f74ef7c – before fd2eff8b9dcbe469c3b7bbbc7083ab5ed94de07b841686df9f7d2942cfd94d024b8591fa3f74ef7c – before 43eb9b667b95f2a31c63e8949b0d2161b9be59c3
Linux Linux 4.9

Weakness: CWE-415 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References