Re: [PATCH net] bpfilter: fix race in pipe access

2018-06-07 Thread David Miller
From: Alexei Starovoitov Date: Thu, 7 Jun 2018 15:31:14 -0700 > syzbot reported the following crash > [ 338.293946] bpfilter: read fail -512 > [ 338.304515] kasan: GPF could be caused by NULL-ptr deref or user memory > access > [ 338.311863] general protection fault: [#1] SMP KASAN > [

[PATCH net] bpfilter: fix race in pipe access

2018-06-07 Thread Alexei Starovoitov
syzbot reported the following crash [ 338.293946] bpfilter: read fail -512 [ 338.304515] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 338.311863] general protection fault: [#1] SMP KASAN [ 338.344360] RIP: 0010:__vfs_write+0x4a6/0x960 [ 338.426363] Call Trace: [