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CVE-2023-52469— drivers/amd/pm: fix a use-after-free in kv_parse_power_table

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于kv_parse_power_table存在释放后重用漏洞。

CVSS 7.8 · High EPSS 0.29% · P20

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a2e73f56fa6282481927ec43aa9362c03c2e2104< 8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e affected
a2e73f56fa6282481927ec43aa9362c03c2e2104< 8b55b06e737feb2a645b0293ea27e38418876d63 affected
a2e73f56fa6282481927ec43aa9362c03c2e2104< 520e213a0b97b64735a13950e9371e0a5d7a5dc3 affected
a2e73f56fa6282481927ec43aa9362c03c2e2104< b6dcba02ee178282e0d28684d241e0b8462dea6a affected
a2e73f56fa6282481927ec43aa9362c03c2e2104< 35fa2394d26e919f63600ce631e6aefc95ec2706 affected
a2e73f56fa6282481927ec43aa9362c03c2e2104< 95084632a65d5c0d682a83b55935560bdcd2a1e3 affected
a2e73f56fa6282481927ec43aa9362c03c2e2104< 3426f059eacc33ecc676b0d66539297e1cfafd02 affected
a2e73f56fa6282481927ec43aa9362c03c2e2104< 28dd788382c43b330480f57cd34cde0840896743 affected
… +10 more rows
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I. Basic Information for CVE-2023-52469

Vulnerability Information
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Vulnerability Title
drivers/amd/pm: fix a use-after-free in kv_parse_power_table
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drivers/amd/pm: fix a use-after-free in kv_parse_power_table When ps allocated by kzalloc equals to NULL, kv_parse_power_table frees adev->pm.dpm.ps that allocated before. However, after the control flow goes through the following call chains: kv_parse_power_table |-> kv_dpm_init |-> kv_dpm_sw_init |-> kv_dpm_fini The adev->pm.dpm.ps is used in the for loop of kv_dpm_fini after its first free in kv_parse_power_table and causes a use-after-free bug.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于kv_parse_power_table存在释放后重用漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux a2e73f56fa6282481927ec43aa9362c03c2e2104 ~ 8a27d9d9fc9b5564b8904c3a77a7dea482bfa34e -
Linux Linux 4.2 -

II. Public POCs for CVE-2023-52469

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III. Intelligence Information for CVE-2023-52469

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Mailing List Discussions for CVE-2023-52469 (2)

Other References for CVE-2023-52469 (8)

Same Patch Batch · Linux · 2024-02-25 · 11 CVEs total

CVE-2023-52465 power: supply: Fix null pointer dereference in smb2_probe
CVE-2023-52467 mfd: syscon: Fix null pointer dereference in of_syscon_register()
CVE-2023-52468 class: fix use-after-free in class_register()
CVE-2023-52470 drm/radeon: check the alloc_workqueue return value in radeon_crtc_init()
CVE-2023-52471 ice: Fix some null pointer dereference issues in ice_ptp.c
CVE-2023-52472 crypto: rsa - add a check for allocation failure
CVE-2023-52473 thermal: core: Fix NULL pointer dereference in zone registration error path
CVE-2021-46904 net: hso: fix null-ptr-deref during tty device unregistration
CVE-2021-46905 net: hso: fix NULL-deref on disconnect regression
CVE-2022-48626 moxart: fix potential use-after-free on remove path

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52469

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