Re: UBSAN: Undefined behaviour in /root/linux-source-4.14/drivers/vhost/vhost.c:LINE

2018-04-02 Thread Kaipeng Zeng
On Tue, Apr 3, 2018 at 11:07 AM, Eric Biggers wrote: > On Tue, Apr 03, 2018 at 10:56:37AM +0800, Kaipeng Zeng wrote: >> Syzkaller hit 'UBSAN: Undefined behaviour in >> /root/linux-source-4.14/drivers/vhost/vhost.c:LINE' bug. >> Kernel: debian package linux-sourc

UBSAN: Undefined behaviour in /root/linux-source-4.14/mm/page-writeback.c:LINE

2018-04-02 Thread Kaipeng Zeng
Kernel: debian package linux-source-4.14, build with UBSAN enable Log, no repro: libceph: get_reply osd2 tid 54 data 4097 > preallocated 0, skipping == UB

UBSAN: Undefined behaviour in /root/linux-source-4.14/drivers/vhost/vhost.c:LINE

2018-04-02 Thread Kaipeng Zeng
Syzkaller hit 'UBSAN: Undefined behaviour in /root/linux-source-4.14/drivers/vhost/vhost.c:LINE' bug. Kernel: debian package linux-source-4.14, build with UBSAN enable Log & repro: Syzkaller hit 'UBSAN: Undefined behaviour in /root/linux-source-4.14/drivers/vhost/vhost.c:LINE' bug. tun: Universal T

KASAN: use-after-free Read in set_page_dirty_lock

2018-03-15 Thread Kaipeng Zeng
KASAN: use-after-free Read in set_page_dirty_lock found by syzkaller. Kernel: debian package linux-source-4.14, build with KASAN enable P.S. "/root/tmp" is the mount point of cephfs Log & repro: Syzkaller hit 'KASAN: use-after-free Read in set_page_dirty_lock' bug.