Re: net/ipv6: use-after-free in sock_wfree

2017-02-12 Thread Andrey Konovalov
On Mon, Jan 9, 2017 at 6:21 PM, Eric Dumazet wrote: > On Mon, Jan 9, 2017 at 9:11 AM, Andrey Konovalov > wrote: >> On Mon, Jan 9, 2017 at 6:08 PM, Andrey Konovalov >> wrote: >>> Hi! >>> >>> I've got the following error report while running the syzkaller fuzzer. >>> >>> On commit a121103c922847

Re: net/ipv6: use-after-free in sock_wfree

2017-01-10 Thread Andrey Konovalov
On Mon, Jan 9, 2017 at 8:08 PM, Eric Dumazet wrote: > On Mon, Jan 9, 2017 at 11:06 AM, Andrey Konovalov > wrote: >> >> Hi Eric, >> >> This patch fixes the issue. >> >> Thanks! > > Thanks Andrey. > > Could you please post your .config for next KASAN reports ? Sure, no problem! > > I am asking t

Re: net/ipv6: use-after-free in sock_wfree

2017-01-09 Thread Eric Dumazet
On Mon, Jan 9, 2017 at 11:06 AM, Andrey Konovalov wrote: > > Hi Eric, > > This patch fixes the issue. > > Thanks! Thanks Andrey. Could you please post your .config for next KASAN reports ? I am asking this because I could not reproduce the issue with my own builds, so I had to guess but could n

Re: net/ipv6: use-after-free in sock_wfree

2017-01-09 Thread Andrey Konovalov
On Mon, Jan 9, 2017 at 6:21 PM, Eric Dumazet wrote: > On Mon, Jan 9, 2017 at 9:11 AM, Andrey Konovalov > wrote: >> On Mon, Jan 9, 2017 at 6:08 PM, Andrey Konovalov >> wrote: >>> Hi! >>> >>> I've got the following error report while running the syzkaller fuzzer. >>> >>> On commit a121103c922847

Re: net/ipv6: use-after-free in sock_wfree

2017-01-09 Thread Eric Dumazet
On Mon, Jan 9, 2017 at 9:11 AM, Andrey Konovalov wrote: > On Mon, Jan 9, 2017 at 6:08 PM, Andrey Konovalov > wrote: >> Hi! >> >> I've got the following error report while running the syzkaller fuzzer. >> >> On commit a121103c922847ba5010819a3f250f1f7fc84ab8 (4.10-rc3). >> >> A reproducer is atta

Re: net/ipv6: use-after-free in sock_wfree

2017-01-09 Thread Andrey Konovalov
On Mon, Jan 9, 2017 at 6:08 PM, Andrey Konovalov wrote: > Hi! > > I've got the following error report while running the syzkaller fuzzer. > > On commit a121103c922847ba5010819a3f250f1f7fc84ab8 (4.10-rc3). > > A reproducer is attached. > > ===

net/ipv6: use-after-free in sock_wfree

2017-01-09 Thread Andrey Konovalov
Hi! I've got the following error report while running the syzkaller fuzzer. On commit a121103c922847ba5010819a3f250f1f7fc84ab8 (4.10-rc3). A reproducer is attached. == BUG: KASAN: use-after-free in sock_wfree+0x118/0x120 Read of si