7.8

CVE-2023-52475

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

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.14.328
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.297
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.259
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.199
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.136
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.59
Linux ≫ Linux Kernel Version >= 6.2 < 6.5.8
Linux ≫ Linux Kernel Version6.6 Updaterc1
Linux ≫ Linux Kernel Version6.6 Updaterc2
Linux ≫ Linux Kernel Version6.6 Updaterc3
Linux ≫ Linux Kernel Version6.6 Updaterc4
Linux ≫ Linux Kernel Version6.6 Updaterc5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.154
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/2efe67c581a2a6122b328d4bb6f21b3f36f40d46
Patch
https://git.kernel.org/stable/c/5aa514100aaf59868d745196258269a16737c7bd
Patch
https://git.kernel.org/stable/c/5c15c60e7be615f05a45cd905093a54b11f461bc
Patch
https://git.kernel.org/stable/c/67cace72606baf1758fd60feb358f4c6be92e1cc
Patch
https://git.kernel.org/stable/c/6a4a396386404e62fb59bc3bde48871a64a82b4f
Patch
https://git.kernel.org/stable/c/8677575c4f39d65bf0d719b5d20e8042e550ccb9
Patch
https://git.kernel.org/stable/c/cd2fbfd8b922b7fdd50732e47d797754ab59cb06
Patch
https://git.kernel.org/stable/c/e528b1b9d60743e0b26224e3fe7aa74c24b8b2f8
Patch