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
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 8677575c4f39d65bf0d719b5d20e8042e550ccb9affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 67cace72606baf1758fd60feb358f4c6be92e1ccaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 5aa514100aaf59868d745196258269a16737c7bdaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < cd2fbfd8b922b7fdd50732e47d797754ab59cb06affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 6a4a396386404e62fb59bc3bde48871a64a82b4faffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 2efe67c581a2a6122b328d4bb6f21b3f36f40d46affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < e528b1b9d60743e0b26224e3fe7aa74c24b8b2f8affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 5c15c60e7be615f05a45cd905093a54b11f461bcaffected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected4.14.328 to ≤ 4.14.*unaffected4.19.297 to ≤ 4.19.*unaffected5.4.259 to ≤ 5.4.*unaffected5.10.199 to ≤ 5.10.*unaffected5.15.136 to ≤ 5.15.*unaffected6.1.59 to ≤ 6.1.*unaffected6.5.8 to ≤ 6.5.*unaffected6.6 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8677575c4f39d65bf0d719b5d20e8042e550ccb9 ↗
- https://git.kernel.org/stable/c/67cace72606baf1758fd60feb358f4c6be92e1cc ↗
- https://git.kernel.org/stable/c/5aa514100aaf59868d745196258269a16737c7bd ↗
- https://git.kernel.org/stable/c/cd2fbfd8b922b7fdd50732e47d797754ab59cb06 ↗
- https://git.kernel.org/stable/c/6a4a396386404e62fb59bc3bde48871a64a82b4f ↗
- https://git.kernel.org/stable/c/2efe67c581a2a6122b328d4bb6f21b3f36f40d46 ↗
- https://git.kernel.org/stable/c/e528b1b9d60743e0b26224e3fe7aa74c24b8b2f8 ↗
- https://git.kernel.org/stable/c/5c15c60e7be615f05a45cd905093a54b11f461bc ↗