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Date: Tue, 30 Jan 2018 19:49:51 -0800 From: "santosh.shilimkar@...cle.com" <santosh.shilimkar@...cle.com> To: Eric Biggers <ebiggers3@...il.com>, Dmitry Vyukov <dvyukov@...gle.com> Cc: syzbot <bot+d3f5d339869eb8cd834d2c9f0a88bf4f05c29781@...kaller.appspotmail.com>, David Miller <davem@...emloft.net>, LKML <linux-kernel@...r.kernel.org>, linux-rdma@...r.kernel.org, netdev <netdev@...r.kernel.org>, rds-devel@....oracle.com, syzkaller-bugs@...glegroups.com Subject: Re: BUG: spinlock bad magic (2) On 1/30/18 2:28 PM, Eric Biggers wrote: > On Mon, Dec 18, 2017 at 06:01:30PM +0100, 'Dmitry Vyukov' via syzkaller-bugs wrote: >> On Mon, Dec 18, 2017 at 5:46 PM, Santosh Shilimkar >> <santosh.shilimkar@...cle.com> wrote: >>> On 12/18/2017 4:36 AM, syzbot wrote: >>>> >>>> Hello, >>>> >>>> syzkaller hit the following crash on >>>> 6084b576dca2e898f5c101baef151f7bfdbb606d >>>> git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master >>>> compiler: gcc (GCC) 7.1.1 20170620 >>>> .config is attached >>>> Raw console output is attached. >>>> >>>> Unfortunately, I don't have any reproducer for this bug yet. >>>> >>> [...] >>> >>>> BUG: unable to handle kernel NULL pointer dereference at 0000000000000028 >>>> IP: rds_send_xmit+0x80/0x930 net/rds/send.c:186 >>> >>> >>> This one seems to be same bug as reported as below. >>> >>> BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit >> >> Hi Santosh, >> >> The proper syntax to tell syzbot about dups is this (from email footer): >> >>> See https://goo.gl/tpsmEJ for details. >>> Please credit me with: Reported-by: syzbot <syzkaller@...glegroups.com> >>> syzbot will keep track of this bug report. >>> To mark this as a duplicate of another syzbot report, please reply with: >>> #syz dup: exact-subject-of-another-report >>> Note: all commands must start from beginning of the line in the email body. > > #syz dup: BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit Ok. Noted.
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