Re: BUG: KASAN: use-after-free in udp_lib_get_port

2016-10-20 Thread Eric Dumazet
On Wed, 2016-10-19 at 23:01 +0800, Baozeng Ding wrote: > Hello all, > I have got some similar bugs again((on Oct 7 commit > d1f5323370fceaed43a7ee38f4c7bfc7e70f28d0): Thanks for the reports, but please there is no need to send duplicates. I have an idea of the problem, will send a patch asap,

Re: BUG: KASAN: use-after-free in udp_lib_get_port

2016-10-19 Thread Baozeng Ding
Hello all, I have got some similar bugs again((on Oct 7 commit d1f5323370fceaed43a7ee38f4c7bfc7e70f28d0): BUG: KASAN: use-after-free in udp_lib_get_port+0x1573/0x1860 at addr 88002f163c60 Write of size 8 by task syz-executor/13510 CPU: 2 PID: 13510 Comm: syz-executor Not tainted 4.8.0+ #41

Re: BUG: KASAN: use-after-free in udp_lib_get_port

2016-10-19 Thread Baozeng Ding
Hello all, I hit some similiar bugs again: BUG: KASAN: use-after-free in udp_lib_get_port+0x1573/0x1860 at addr 88002f163c60 Write of size 8 by task syz-executor/13510 CPU: 2 PID: 13510 Comm: syz-executor Not tainted 4.8.0+ #41 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS

Re: BUG: KASAN: use-after-free in udp_lib_get_port

2016-10-16 Thread Cong Wang
On Sun, Oct 16, 2016 at 6:46 AM, Baozeng Ding wrote: > Hello all, > While running syzkaller fuzzer I have got the following use-after-free > bug in udp_lib_get_port. The kernel version is 4.8.0+ (on Oct 7 commit > d1f5323370fceaed43a7ee38f4c7bfc7e70f28d0). Unfortunately I