Re: [rds-devel] BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit

2018-01-30 Thread Sowmini Varadhan
On (01/30/18 14:22), Eric Biggers wrote: > > I assume you weren't able to reproduce this? This crash hasn't been > seen again, : > I am invalidating the bug for syzbot so it will report the same crash > signature > again if it occurs, but if you think there is a real bug feel free to keep > loo

Re: [rds-devel] BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit

2018-01-30 Thread Eric Biggers
On Mon, Dec 18, 2017 at 12:22:51PM -0500, Sowmini Varadhan wrote: > > From: Santosh Shilimkar > > Date: Mon, 18 Dec 2017 08:28:05 -0800 > : > > > Looks like another one tripping on empty transport. Mostly below > > > should > > > address it but we will test it if it does. > > that was my first

Re: [rds-devel] BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit

2017-12-18 Thread Sowmini Varadhan
> From: Santosh Shilimkar > Date: Mon, 18 Dec 2017 08:28:05 -0800 : > > Looks like another one tripping on empty transport. Mostly below > > should > > address it but we will test it if it does. that was my first thought, but it cannot be the case here: rds_sendmsg etc itself would have bombed

Re: BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit

2017-12-18 Thread Santosh Shilimkar
On 12/18/2017 9:12 AM, David Miller wrote: From: Santosh Shilimkar Date: Mon, 18 Dec 2017 08:28:05 -0800 On 12/18/2017 12:43 AM, syzbot wrote: Hello, syzkaller hit the following crash on 6084b576dca2e898f5c101baef151f7bfdbb606d git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

Re: BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit

2017-12-18 Thread David Miller
From: Santosh Shilimkar Date: Mon, 18 Dec 2017 08:28:05 -0800 > On 12/18/2017 12:43 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.

Re: BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit

2017-12-18 Thread Santosh Shilimkar
On 12/18/2017 12:43 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. Unfortunat

Re: BUG: unable to handle kernel NULL pointer dereference in rds_send_xmit

2017-12-18 Thread Sowmini Varadhan
On (12/18/17 00:43), syzbot wrote: > BUG: unable to handle kernel NULL pointer dereference at 0028 > program syz-executor6 is using a deprecated SCSI ioctl, please convert it to > SG_IO > IP: rds_send_xmit+0x80/0x930 net/rds/send.c:186 conn->c_trans is at offset 0x28. Both this and ht