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Red Hat: CVE-2023-52475: kernel: use-after-free in powermate_config_complete (Multiple Advisories)

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Red Hat: CVE-2023-52475: kernel: use-after-free in powermate_config_complete (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:M/C:C/I:C/A:C)
Published
02/29/2024
Created
12/06/2024
Added
12/05/2024
Modified
12/11/2024

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

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2023-52475
  • RHSA-2024:9315
  • 查看数 703
  • 已创建
  • 最后回复

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