CVE-2024-36973

misc: microchip: pci1xxxx: fix double free in the error handling of gp_aux_bus_probe()

HIGH
7.8
CVSS Score
Published: June 17, 2024 at 05:51 PM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.1 ≤ v < 6.1.956.1 ≤ v < 6.106.1 ≤ v < 6.6.356.1 ≤ v < 6.9.66.2 ≤ v < 6.6.356.7 ≤ v < 6.9.6393fc2f5948fd340d016a9557eea6e1ac2f6c60c6.10 rc16.10 rc26.10 rc3
Vendor states this is fixed in 086c6cbcc563c81d55257f9b27e14faf1d0963d3 (fixed)
Vendor states this is fixed in 1efe551982297924d05a367aa2b6ec3d275d5742 (fixed)
Vendor states this is fixed in 34ae447b138680b5ed3660f7d935ff3faf88ba1a (fixed)
Vendor states this is fixed in 86c9713602f786f441630c4ee02891987f8618b9 (fixed)
Vendor states this is fixed in 6.1 (unaffected)
Vendor states this is fixed in 6.1.95 (unaffected)
Vendor states this is fixed in 6.10 (unaffected)
Vendor states this is fixed in 6.6.35 (unaffected)
Vendor states this is fixed in 6.9.6 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/086c6cbcc563c81d55257f9b27e14faf1d0963d3
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1efe551982297924d05a367aa2b6ec3d275d5742
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/34ae447b138680b5ed3660f7d935ff3faf88ba1a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/86c9713602f786f441630c4ee02891987f8618b9
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-415

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