CVE-2023-52475

HighCVSS 7.8/10Last modified Jun 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

Input: powermate - fix use-after-free in powermate_config_complete

syzbot has found a use-after-free bug [1] in the powermate driver. This happens when the device is disconnected, which leads to a memory free from the powermate_device struct. When an asynchronous control message completes after the kfree and its callback is invoked, the lock does not exist anymore and hence the bug.

Use usb_kill_urb() on pm->config to cancel any in-progress requests upon device disconnection.

[1] https://syzkaller.appspot.com/bug?extid=0434ac83f907a1dbdd1e

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-416

Affected software

VendorProductVersions
LinuxLinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 8677575c4f39d65bf0d719b5d20e8042e550ccb9; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 67cace72606baf1758fd60feb358f4c6be92e1cc; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5aa514100aaf59868d745196258269a16737c7bd; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cd2fbfd8b922b7fdd50732e47d797754ab59cb06; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 6a4a396386404e62fb59bc3bde48871a64a82b4f; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 2efe67c581a2a6122b328d4bb6f21b3f36f40d46; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < e528b1b9d60743e0b26224e3fe7aa74c24b8b2f8; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 5c15c60e7be615f05a45cd905093a54b11f461bc
LinuxLinux2.6.12

References

Timeline

Published
Feb 29, 2024
Last modified
Jun 17, 2026
NVD status
Analyzed

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CVE-2023-52475: High severity, CVSS 7.8 | Vulnix