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

can: peak_pci: peak_pci_remove(): fix UAF

When remove the module peek_pci, referencing 'chan' again after
releasing 'dev' will cause UAF.

Fix this by releasing 'dev' later.

The following log reveals it:

[   35.961814 ] BUG: KASAN: use-after-free in peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.963414 ] Read of size 8 at addr ffff888136998ee8 by task modprobe/5537
[   35.965513 ] Call Trace:
[   35.965718 ]  dump_stack_lvl+0xa8/0xd1
[   35.966028 ]  print_address_description+0x87/0x3b0
[   35.966420 ]  kasan_report+0x172/0x1c0
[   35.966725 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.967137 ]  ? trace_irq_enable_rcuidle+0x10/0x170
[   35.967529 ]  ? peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.967945 ]  __asan_report_load8_noabort+0x14/0x20
[   35.968346 ]  peak_pci_remove+0x16f/0x270 [peak_pci]
[   35.968752 ]  pci_device_remove+0xa9/0x250

kernel.org https://git.kernel.org/stable/c/0e5afdc2315b0737edcf55bede4ee1640d2d464d [No types assigned]

kernel.org https://git.kernel.org/stable/c/1248582e47a9f7ce0ecd156c39fc61f8b6aa3699 [No types assigned]

kernel.org https://git.kernel.org/stable/c/1c616528ba4aeb1125a06b407572ab7b56acae38 [No types assigned]

kernel.org https://git.kernel.org/stable/c/28f28e4bc3a5e0051faa963f10b778ab38c1db69 [No types assigned]

kernel.org https://git.kernel.org/stable/c/34914971bb3244db4ce2be44e9438a9b30c56250 [No types assigned]

kernel.org https://git.kernel.org/stable/c/447d44cd2f67a20b596ede3ca3cd67086dfd9ca9 [No types assigned]

kernel.org https://git.kernel.org/stable/c/949fe9b35570361bc6ee2652f89a0561b26eec98 [No types assigned]

kernel.org https://git.kernel.org/stable/c/adbda14730aacce41c0d3596415aa39ad63eafd9 [No types assigned]