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CVE-2024-36973— misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()

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 misc microchip 中的 gp_aux_bus_probe()错误处理了双重释放漏洞。

CVSS 8.4 · High EPSS 0.24% · P14

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 393fc2f5948fd340d016a9557eea6e1ac2f6c60c< 34ae447b138680b5ed3660f7d935ff3faf88ba1a affected
393fc2f5948fd340d016a9557eea6e1ac2f6c60c< 86c9713602f786f441630c4ee02891987f8618b9 affected
393fc2f5948fd340d016a9557eea6e1ac2f6c60c< 1efe551982297924d05a367aa2b6ec3d275d5742 affected
393fc2f5948fd340d016a9557eea6e1ac2f6c60c< 086c6cbcc563c81d55257f9b27e14faf1d0963d3 affected
6.1 affected
< 6.1 unaffected
6.1.95≤ 6.1.* unaffected
6.6.35≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-36973

Vulnerability Information
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Vulnerability Title
misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe() When auxiliary_device_add() returns error and then calls auxiliary_device_uninit(), callback function gp_auxiliary_device_release() calls ida_free() and kfree(aux_device_wrapper) to free memory. We should't call them again in the error handling path. Fix this by skipping the redundant cleanup functions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/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 misc microchip 中的 gp_aux_bus_probe()错误处理了双重释放漏洞。
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 393fc2f5948fd340d016a9557eea6e1ac2f6c60c ~ 34ae447b138680b5ed3660f7d935ff3faf88ba1a -
Linux Linux 6.1 -

II. Public POCs for CVE-2024-36973

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III. Intelligence Information for CVE-2024-36973

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Other References for CVE-2024-36973 (4)

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-36973

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