[PATCH v2 0/1] nfc: llcp: a fix after syzbot report

[Krzysztof Kozlowski]

Hi,

Syzbot reported an easily reproducible NULL pointer dereference which I was
struggling to analyze:
https://syzkaller.appspot.com/bug?extid=7f23bcddf626e0593a39

Although direct fix is obvious, I could not actually find the exact race
condition scenario leading to it.  The patch fixes the issue - at least under
my QEMU - however all this code looks racy, so I have a feeling I am plumbing
one leak without fixing root cause.

Therefore I would appreciate some more thoughts on first commit.

Testing
=======
Under QEMU only. The NFC/LLCP code was not really tested on a device.

Best regards,
Krzysztof

Krzysztof Kozlowski (1):
  nfc: llcp: fix NULL error pointer dereference on sendmsg() after
    failed bind()

 net/nfc/llcp_sock.c | 5 +++++
 1 file changed, 5 insertions(+)

-- 
2.32.0