Messages in this thread | | | Subject | Re: WARNING in rds_cmsg_rdma_args | From | Santosh Shilimkar <> | Date | Wed, 3 Jan 2018 10:43:11 -0800 |
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On 1/3/2018 12:58 AM, syzbot wrote: > Hello, > > syzkaller hit the following crash on > ad036b63ee57df9ab802a4eb20cbbbec66aa4520 > git://git.cmpxchg.org/linux-mmots.git/master > compiler: gcc (GCC) 7.1.1 20170620 > .config is attached > Raw console output is attached. > C reproducer is attached > syzkaller reproducer is attached. See
> > for information about syzkaller reproducers > > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+ef175b5825285531eabf@syzkaller.appspotmail.com > It will help syzbot understand when the bug is fixed. See footer for > details. > If you forward the report, please keep this part and the footer. > > audit: type=1400 audit(1514947982.760:7): avc: denied { map } for > pid=3468 comm="syzkaller284818" path="/root/syzkaller284818499" > dev="sda1" ino=16481 > scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 > tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 > WARNING: CPU: 1 PID: 3468 at net/rds/rdma.c:617 > rds_cmsg_rdma_args+0xe96/0x1360 net/rds/rdma.c:617 > Kernel panic - not syncing: panic_on_warn set ... > +Mohamed Ghannam, who was discussing similar issue and was going to post fix for it. Checking args->nr_local against 0 upfront would address this issue as well.
Regards, Santosh
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