Vulnerability CVE-2023-52907
Published: 2024-08-21

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

nfc: pn533: Wait for out_urb's completion in pn533_usb_send_frame()

Fix a use-after-free that occurs in hcd when in_urb sent from
pn533_usb_send_frame() is completed earlier than out_urb. Its callback
frees the skb data in pn533_send_async_complete() that is used as a
transfer buffer of out_urb. Wait before sending in_urb until the
callback of out_urb is called. To modify the callback of out_urb alone,
separate the complete function of out_urb and ack_urb.

Found by a modified version of syzkaller.

BUG: KASAN: use-after-free in dummy_timer
Call Trace:
memcpy (mm/kasan/shadow.c:65)
dummy_perform_transfer (drivers/usb/gadget/udc/dummy_hcd.c:1352)
transfer (drivers/usb/gadget/udc/dummy_hcd.c:1453)
dummy_timer (drivers/usb/gadget/udc/dummy_hcd.c:1972)
arch_static_branch (arch/x86/include/asm/jump_label.h:27)
static_key_false (include/linux/jump_label.h:207)
timer_expire_exit (include/trace/events/timer.h:127)
call_timer_fn (kernel/time/timer.c:1475)
expire_timers (kernel/time/timer.c:1519)
__run_timers (kernel/time/timer.c:1790)
run_timer_softirq (kernel/time/timer.c:1803)

 References:
https://git.kernel.org/stable/c/35529d6b827eedb6bf7e81130e4b7e0aba9e58d2
https://git.kernel.org/stable/c/321db5131c92983dac4f3338e8fbb6df214238c0
https://git.kernel.org/stable/c/9424d2205fe94a095fb9365ec0c6137f0b394a2b
https://git.kernel.org/stable/c/0ca78c99656f5c448567db1e148367aa3b01c80a
https://git.kernel.org/stable/c/39ae73e581112cfe27ba50aecb1c891ce57cecb1
https://git.kernel.org/stable/c/8998db5021a28ad67aa8d627bdb4226e4046ccc4
https://git.kernel.org/stable/c/9dab880d675b9d0dd56c6428e4e8352a3339371d
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