Re: BUG: net/netlink: KASAN: use-after-free in netlink_sock_destruct

2016-05-27 Thread Herbert Xu
On Fri, May 27, 2016 at 09:19:48AM -0700, Cong Wang wrote: > > This one looks different though, this time the bug is > triggered in netlink_sock_destruct(), where all the sock > ref should be gone, which means it is impossible to refer > nlk->cb anywhere else. Hmm... I have no idea how > could this

Re: BUG: net/netlink: KASAN: use-after-free in netlink_sock_destruct

2016-05-27 Thread Cong Wang
On Thu, May 26, 2016 at 8:06 AM, Eric Dumazet wrote: > On Thu, 2016-05-26 at 22:48 +0800, Baozeng Ding wrote: >> Hi all, >> I've got the following report use-after-free in netlink_sock_destruct while >> running syzkaller. >> Unfortunately no reproducer.The kernel version is 4.6 (May 15, on commit

Re: BUG: net/netlink: KASAN: use-after-free in netlink_sock_destruct

2016-05-26 Thread Baozeng Ding
On 2016/5/26 23:06, Eric Dumazet wrote: > On Thu, 2016-05-26 at 22:48 +0800, Baozeng Ding wrote: >> Hi all, >> I've got the following report use-after-free in netlink_sock_destruct while >> running syzkaller. >> Unfortunately no reproducer.The kernel version is 4.6 (May 15, on commit >> 2dcd0af

Re: BUG: net/netlink: KASAN: use-after-free in netlink_sock_destruct

2016-05-26 Thread Eric Dumazet
On Thu, 2016-05-26 at 22:48 +0800, Baozeng Ding wrote: > Hi all, > I've got the following report use-after-free in netlink_sock_destruct while > running syzkaller. > Unfortunately no reproducer.The kernel version is 4.6 (May 15, on commit > 2dcd0af568b0cf583645c8a317dd12e344b1c72a). Thanks. > >