RBP: 000000000075bf20 R08: 0000000020000300 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9300b6d6d4 R13: 00000000004bfc7c R14: 00000000004d1718 R15: 0000000000000003 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9479 Comm: syz-executor.0 Not tainted 5.2.0-rc7-next-20190703 #28 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:task_pid_ptr kernel/pid.c:277 [inline] RIP: 0010:get_task_pid+0xa7/0x2e0 kernel/pid.c:376 Code: e8 de 18 26 00 85 db 0f 85 fa 00 00 00 e8 51 17 26 00 49 8d bd 40 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 0a 02 00 00 4d 8b a5 40 05 00 00 e8 23 17 26 00 RSP: 0018:ffff8880664dfcf8 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005de9000 RDX: 00000000000000a8 RSI: ffffffff814c3c5f RDI: 0000000000000544 RBP: ffff8880664dfd10 R08: ffff8880999ae1c0 R09: ffffed1015d06c84 R10: ffffed1015d06c83 R11: ffff8880ae83641b R12: 0000000000000001 R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f9300b6d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000738000 CR3: 00000000984ff000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: _do_fork+0x1f7/0xfa0 kernel/fork.c:2380 __do_sys_clone kernel/fork.c:2510 [inline] __se_sys_clone kernel/fork.c:2490 [inline] __x64_sys_clone+0x186/0x250 kernel/fork.c:2490 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4597c9 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f9300b6cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007f9300b6cc90 RCX: 00000000004597c9 RDX: 0000000020000400 RSI: 0000000000000000 RDI: 0000000000003ffd RBP: 000000000075bf20 R08: 0000000020000300 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9300b6d6d4 R13: 00000000004bfc7c R14: 00000000004d1718 R15: 0000000000000003 Modules linked in: ---[ end trace 8bfa112bec01689b ]--- RIP: 0010:task_pid_ptr kernel/pid.c:277 [inline] RIP: 0010:get_task_pid+0xa7/0x2e0 kernel/pid.c:376 Code: e8 de 18 26 00 85 db 0f 85 fa 00 00 00 e8 51 17 26 00 49 8d bd 40 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 0a 02 00 00 4d 8b a5 40 05 00 00 e8 23 17 26 00 RSP: 0018:ffff8880664dfcf8 EFLAGS: 00010203 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005de9000 RDX: 00000000000000a8 RSI: ffffffff814c3c5f RDI: 0000000000000544 RBP: ffff8880664dfd10 R08: ffff8880999ae1c0 R09: ffffed1015d06c84 R10: ffffed1015d06c83 R11: ffff8880ae83641b R12: 0000000000000001 R13: 0000000000000004 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f9300b6d700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000738000 CR3: 00000000984ff000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600