Re: [PATCH v2 net] net: nfc: llcp: Add lock when modifying device list

[Simon Horman]

On Mon, Sep 25, 2023 at 03:23:51PM -0400, Jeremy Cline wrote:
> The device list needs its associated lock held when modifying it, or the
> list could become corrupted, as syzbot discovered.
> 
> Reported-and-tested-by: syzbot+c1d0a03d305972dbbe14@xxxxxxxxxxxxxxxxxxxxxxxxx
> Closes: https://syzkaller.appspot.com/bug?extid=c1d0a03d305972dbbe14
> Fixes: 6709d4b7bc2e ("net: nfc: Fix use-after-free caused by nfc_llcp_find_local")
> Signed-off-by: Jeremy Cline <jeremy@xxxxxxxxxx>

Reviewed-by: Simon Horman <horms@xxxxxxxxxx>