Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.93' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 70.852867][ T8483] ------------[ cut here ]------------ [ 70.858367][ T8483] WARNING: CPU: 1 PID: 8483 at fs/fuse/inode.c:1595 fuse_get_tree+0x2eb/0x3f0 [ 70.868266][ T8483] Modules linked in: [ 70.872671][ T8483] CPU: 1 PID: 8483 Comm: syz-executor536 Not tainted 5.14.0-rc3-next-20210726-syzkaller #0 [ 70.882898][ T8483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.893060][ T8483] RIP: 0010:fuse_get_tree+0x2eb/0x3f0 [ 70.898489][ T8483] Code: df 48 8b 85 78 03 00 00 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 e8 00 00 00 4c 8b ad 80 03 00 00 4c 39 e8 74 29 e8 05 25 c8 fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 [ 70.918295][ T8483] RSP: 0018:ffffc9000d6e7d40 EFLAGS: 00010293 [ 70.924556][ T8483] RAX: 0000000000000000 RBX: ffff8880269e6780 RCX: 0000000000000000 [ 70.932659][ T8483] RDX: ffff888035118000 RSI: ffffffff82ada24b RDI: ffff8880169b6028 [ 70.940744][ T8483] RBP: ffff8880360d3800 R08: 0000000000000000 R09: 0000000000000000 [ 70.948819][ T8483] R10: ffffffff82ada0de R11: 0000000000000000 R12: ffff88802ada7c00 [ 70.956796][ T8483] R13: ffff8880145fe800 R14: ffff8880269e6788 R15: ffff8880360d3b78 [ 70.964840][ T8483] FS: 0000000000b25300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 70.974657][ T8483] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 70.981590][ T8483] CR2: 00007f4fd309fc08 CR3: 0000000027619000 CR4: 00000000001506e0 [ 70.989697][ T8483] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 70.997873][ T8483] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.006261][ T8483] Call Trace: [ 71.009643][ T8483] vfs_get_tree+0x89/0x2f0 [ 71.014074][ T8483] path_mount+0x132a/0x1fa0 [ 71.018757][ T8483] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.025105][ T8483] ? strncpy_from_user+0x2a0/0x3e0 [ 71.030489][ T8483] ? finish_automount+0xaf0/0xaf0 [ 71.035523][ T8483] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.041854][ T8483] ? getname_flags.part.0+0x1dd/0x4f0 [ 71.047240][ T8483] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.053760][ T8483] __x64_sys_mount+0x27f/0x300 [ 71.058645][ T8483] ? copy_mnt_ns+0xae0/0xae0 [ 71.063248][ T8483] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.070055][ T8483] do_syscall_64+0x35/0xb0 [ 71.074506][ T8483] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.080582][ T8483] RIP: 0033:0x43f329 [ 71.084491][ T8483] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 71.105887][ T8483] RSP: 002b:00007ffcdd911e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 71.114389][ T8483] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 000000000043f329 [ 71.122461][ T8483] RDX: 0000000020002100 RSI: 00000000200020c0 RDI: 0000000000000000 [ 71.130580][ T8483] RBP: 0000000000403080 R08: 0000000020002140 R09: 0000000000400488 [ 71.138654][ T8483] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000403110 [ 71.146660][ T8483] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 71.154695][ T8483] Kernel panic - not syncing: panic_on_warn set ... [ 71.161301][ T8483] CPU: 1 PID: 8483 Comm: syz-executor536 Not tainted 5.14.0-rc3-next-20210726-syzkaller #0 [ 71.171279][ T8483] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.181317][ T8483] Call Trace: [ 71.184592][ T8483] dump_stack_lvl+0xcd/0x134 [ 71.189175][ T8483] panic+0x306/0x73d [ 71.193068][ T8483] ? __warn_printk+0xf3/0xf3 [ 71.197657][ T8483] ? __warn.cold+0x1a/0x44 [ 71.202066][ T8483] ? fuse_get_tree+0x2eb/0x3f0 [ 71.206817][ T8483] __warn.cold+0x35/0x44 [ 71.211070][ T8483] ? fuse_get_tree+0x2eb/0x3f0 [ 71.215830][ T8483] report_bug+0x1bd/0x210 [ 71.220149][ T8483] handle_bug+0x3c/0x60 [ 71.224299][ T8483] exc_invalid_op+0x14/0x40 [ 71.228784][ T8483] asm_exc_invalid_op+0x12/0x20 [ 71.233967][ T8483] RIP: 0010:fuse_get_tree+0x2eb/0x3f0 [ 71.239324][ T8483] Code: df 48 8b 85 78 03 00 00 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 e8 00 00 00 4c 8b ad 80 03 00 00 4c 39 e8 74 29 e8 05 25 c8 fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 [ 71.258911][ T8483] RSP: 0018:ffffc9000d6e7d40 EFLAGS: 00010293 [ 71.264960][ T8483] RAX: 0000000000000000 RBX: ffff8880269e6780 RCX: 0000000000000000 [ 71.272913][ T8483] RDX: ffff888035118000 RSI: ffffffff82ada24b RDI: ffff8880169b6028 [ 71.280868][ T8483] RBP: ffff8880360d3800 R08: 0000000000000000 R09: 0000000000000000 [ 71.288824][ T8483] R10: ffffffff82ada0de R11: 0000000000000000 R12: ffff88802ada7c00 [ 71.296882][ T8483] R13: ffff8880145fe800 R14: ffff8880269e6788 R15: ffff8880360d3b78 [ 71.304847][ T8483] ? fuse_get_tree+0x17e/0x3f0 [ 71.309603][ T8483] ? fuse_get_tree+0x2eb/0x3f0 [ 71.314357][ T8483] vfs_get_tree+0x89/0x2f0 [ 71.318773][ T8483] path_mount+0x132a/0x1fa0 [ 71.323264][ T8483] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.329491][ T8483] ? strncpy_from_user+0x2a0/0x3e0 [ 71.334596][ T8483] ? finish_automount+0xaf0/0xaf0 [ 71.339605][ T8483] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 71.345827][ T8483] ? getname_flags.part.0+0x1dd/0x4f0 [ 71.351198][ T8483] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 71.357429][ T8483] __x64_sys_mount+0x27f/0x300 [ 71.362201][ T8483] ? copy_mnt_ns+0xae0/0xae0 [ 71.366799][ T8483] ? syscall_enter_from_user_mode+0x21/0x70 [ 71.372680][ T8483] do_syscall_64+0x35/0xb0 [ 71.377094][ T8483] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 71.382984][ T8483] RIP: 0033:0x43f329 [ 71.386864][ T8483] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 71.406569][ T8483] RSP: 002b:00007ffcdd911e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 71.414981][ T8483] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 000000000043f329 [ 71.422945][ T8483] RDX: 0000000020002100 RSI: 00000000200020c0 RDI: 0000000000000000 [ 71.431096][ T8483] RBP: 0000000000403080 R08: 0000000020002140 R09: 0000000000400488 [ 71.439064][ T8483] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000403110 [ 71.447126][ T8483] R13: 0000000000000000 R14: 00000000004ad018 R15: 0000000000400488 [ 71.456936][ T8483] Kernel Offset: disabled [ 71.461484][ T8483] Rebooting in 86400 seconds..