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 Modules linked in: CPU: 0 PID: 22096 Comm: modprobe Not tainted 4.14.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88804f0ae580 task.stack: ffff888140978000 RIP: 0010:do_last fs/namei.c:3269 [inline] RIP: 0010:path_openat+0x20b/0x3db0 fs/namei.c:3569 RSP: 0018:ffff88814097fb28 EFLAGS: 00010247 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0001020304050608 RDX: 0000000000000000 RSI: 1ffff1102812ff56 RDI: 0000000000000004 RBP: ffff88814097fc80 R08: ffff88804f0ae580 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000003 R12: ffff88814097fcc0 R13: ffff88814097fcc0 R14: ffff8880796a1b40 R15: 0000000000000000 FS: 00007f86b02bf700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000008c7b22 CR3: 00000000aedee000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_filp_open+0x18e/0x250 fs/namei.c:3603 do_sys_open+0x2c5/0x430 fs/open.c:1084 SYSC_open fs/open.c:1102 [inline] SyS_open+0x2d/0x40 fs/open.c:1097 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x7f86afbd7120 RSP: 002b:00007ffe5a6a5838 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 00005645481f0240 RCX: 00007f86afbd7120 RDX: 00007ffe5a6a5a6c RSI: 0000000000080000 RDI: 00007ffe5a6a5a50 RBP: 00007f86b00a7300 R08: 0000000000000000 R09: 00005645481f0219 R10: 0000000000000000 R11: 0000000000000246 R12: 00005645481e8210 R13: 00005645481f0210 R14: 00005645481e8210 R15: 00007ffe5a6a5a50 Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 03 30 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 5e 58 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 RIP: do_last fs/namei.c:3269 [inline] RSP: ffff88814097fb28 RIP: path_openat+0x20b/0x3db0 fs/namei.c:3569 RSP: ffff88814097fb28 kauditd_printk_skb: 4 callbacks suppressed audit: type=1804 audit(1580706999.667:264): pid=22108 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.1" name="/root/syzkaller-testdir848310869/syzkaller.9VcL7J/2173/bus/file0" dev="sda1" ino=16893 res=1 ---[ end trace 56db5dce91274da7 ]---