Re: [PATCH net] kcm: lock lower socket in kcm_attach

On Mon, Mar 12, 2018 at 02:25:41PM -0700, Tom Herbert wrote:

On Mon, Mar 12, 2018 at 2:09 PM, Eric Biggers [off-list ref] wrote:

quoted

On Mon, Mar 12, 2018 at 02:04:12PM -0700, Tom Herbert wrote:

quoted

Need to lock lower socket in order to provide mutual exclusion
with kcm_unattach.

Fixes: ab7ac4eb9832e32a09f4e804 ("kcm: Kernel Connection Multiplexor module")
Signed-off-by: Tom Herbert <redacted>
---

Is this fixing the syzbot-reported bug "KASAN: use-after-free Read in
get_work_pool"?  If so, please add:

Reported-by: syzbot+ea75c0ffcd353d32515f064aaebefc5279e6161e@syzkaller.appspotmail.com

Yeah, I was looking for a "reported by". I didn't see it in the email
from syzbot. Where is this found?

Thanks,
Tom

This was an old bug report that was sent out before syzbot was updated to
suggest a Reported-by line.  But you can still use Reported-by for these old
bugs.  I took the bug ID from the From: header of the email.

Eric