./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3388466263 <...> Warning: Permanently added '10.128.0.150' (ED25519) to the list of known hosts. execve("./syz-executor3388466263", ["./syz-executor3388466263"], 0x7ffd47b46270 /* 10 vars */) = 0 brk(NULL) = 0x55557da91000 brk(0x55557da91d00) = 0x55557da91d00 arch_prctl(ARCH_SET_FS, 0x55557da91380) = 0 set_tid_address(0x55557da91650) = 5235 set_robust_list(0x55557da91660, 24) = 0 rseq(0x55557da91ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3388466263", 4096) = 28 getrandom("\xbe\x52\x86\xc5\x44\x4c\x9e\x77", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557da91d00 brk(0x55557dab2d00) = 0x55557dab2d00 brk(0x55557dab3000) = 0x55557dab3000 mprotect(0x7fe8c78c7000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0executing program ) = 0x21000000 write(1, "executing program\n", 18) = 18 [ 63.036093][ T5235] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI [ 63.048711][ T5235] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 63.057233][ T5235] CPU: 0 UID: 0 PID: 5235 Comm: syz-executor338 Not tainted 6.12.0-rc2-next-20241008-syzkaller #0 [ 63.067824][ T5235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 63.077887][ T5235] RIP: 0010:strlen+0x2c/0x70 [ 63.082493][ T5235] Code: 1e fa 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01 [ 63.102100][ T5235] RSP: 0018:ffffc90003b7f8a8 EFLAGS: 00010246 [ 63.108209][ T5235] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88802c5cda00 [ 63.116363][ T5235] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 63.124333][ T5235] RBP: 0000000000000000 R08: ffffffff901d3f2f R09: 1ffffffff203a7e5 [ 63.132311][ T5235] R10: dffffc0000000000 R11: fffffbfff203a7e6 R12: ffffffffffffffff [ 63.140282][ T5235] R13: ffff888028a7e000 R14: 0000000000000000 R15: dffffc0000000000 [ 63.148264][ T5235] FS: 000055557da91380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 63.157191][ T5235] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.164300][ T5235] CR2: 00000000200000c0 CR3: 000000004fdaa000 CR4: 00000000003526f0 [ 63.172274][ T5235] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.180246][ T5235] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.188217][ T5235] Call Trace: [ 63.191504][ T5235] [ 63.194435][ T5235] ? __die_body+0x5f/0xb0 [ 63.198780][ T5235] ? die_addr+0xb0/0xe0 [ 63.202941][ T5235] ? exc_general_protection+0x3dd/0x5d0 [ 63.208524][ T5235] ? asm_exc_general_protection+0x26/0x30 [ 63.214257][ T5235] ? strlen+0x2c/0x70 [ 63.218243][ T5235] ? __kasan_kmalloc+0x98/0xb0 [ 63.223013][ T5235] getname_kernel+0x1d/0x2f0 [ 63.227610][ T5235] kern_path+0x1d/0x50 [ 63.231685][ T5235] btrfs_scan_one_device+0x19e/0xd90 [ 63.236996][ T5235] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.243172][ T5235] ? __pfx_btrfs_scan_one_device+0x10/0x10 [ 63.249017][ T5235] ? __pfx___mutex_lock+0x10/0x10 [ 63.254151][ T5235] btrfs_get_tree+0x30e/0x1920 [ 63.258949][ T5235] ? lockdep_init_map_type+0xa1/0x910 [ 63.264345][ T5235] ? __pfx_btrfs_get_tree+0x10/0x10 [ 63.269560][ T5235] ? __pfx_lockdep_init_map_type+0x10/0x10 [ 63.275377][ T5235] ? rcu_is_watching+0x15/0xb0 [ 63.280152][ T5235] vfs_get_tree+0x90/0x2b0 [ 63.284580][ T5235] fc_mount+0x1b/0xb0 [ 63.288569][ T5235] btrfs_get_tree+0x652/0x1920 [ 63.293343][ T5235] ? __pfx_aa_get_newest_label+0x10/0x10 [ 63.298986][ T5235] ? __mutex_lock+0x2ef/0xd70 [ 63.303671][ T5235] ? __pfx_btrfs_get_tree+0x10/0x10 [ 63.308881][ T5235] ? lock_release+0xbf/0xa30 [ 63.313474][ T5235] ? apparmor_capable+0x13b/0x1b0 [ 63.318501][ T5235] vfs_get_tree+0x90/0x2b0 [ 63.322916][ T5235] vfs_cmd_create+0xa0/0x1f0 [ 63.327512][ T5235] ? __se_sys_fsconfig+0xa15/0xf70 [ 63.332633][ T5235] __se_sys_fsconfig+0xa1f/0xf70 [ 63.337583][ T5235] ? _raw_spin_unlock_irq+0x2e/0x50 [ 63.342783][ T5235] ? __pfx___se_sys_fsconfig+0x10/0x10 [ 63.348261][ T5235] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 63.354600][ T5235] ? rcu_is_watching+0x15/0xb0 [ 63.359368][ T5235] ? __x64_sys_fsconfig+0x20/0xc0 [ 63.364417][ T5235] do_syscall_64+0xf3/0x230 [ 63.368920][ T5235] ? clear_bhb_loop+0x35/0x90 [ 63.373597][ T5235] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.379489][ T5235] RIP: 0033:0x7fe8c78542a9 [ 63.383913][ T5235] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 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 b8 ff ff ff f7 d8 64 89 01 48 [ 63.403607][ T5235] RSP: 002b:00007ffd2c4992f8 EFLAGS: 00000246 ORIG_RAX: 00000000000001af [ 63.412024][ T5235] RAX: ffffffffffffffda RBX: 00007ffd2c4994c8 RCX: 00007fe8c78542a9 [ 63.419997][ T5235] RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000003 [ 63.428055][ T5235] RBP: 00007fe8c78c7610 R08: 0000000000000000 R09: 00007ffd2c4994c8 fsopen("btrfs", 0) = 3 [ 63.436048][ T5235] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 63.444036][ T5235] R13: 00007ffd2c4994b8 R14: 0000000000000001 R15: 0000000000000001 [ 63.452026][ T5235] [ 63.455045][ T5235] Modules linked in: [ 63.459159][ T5235] ---[ end trace 0000000000000000 ]--- [ 63.466958][ T5235] RIP: 0010:strlen+0x2c/0x70 [ 63.471618][ T5235] Code: 1e fa 41 57 41 56 41 54 53 49 89 fe 48 c7 c0 ff ff ff ff 49 bf 00 00 00 00 00 fc ff df 48 89 fb 49 89 c4 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 12 48 ff c3 49 8d 44 24 01 43 80 7c 26 01 [ 63.491548][ T5235] RSP: 0018:ffffc90003b7f8a8 EFLAGS: 00010246 [ 63.497700][ T5235] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88802c5cda00 [ 63.505778][ T5235] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 63.513748][ T5235] RBP: 0000000000000000 R08: ffffffff901d3f2f R09: 1ffffffff203a7e5 [ 63.521770][ T5235] R10: dffffc0000000000 R11: fffffbfff203a7e6 R12: ffffffffffffffff [ 63.529827][ T5235] R13: ffff888028a7e000 R14: 0000000000000000 R15: dffffc0000000000 [ 63.537852][ T5235] FS: 000055557da91380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 63.546851][ T5235] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 63.553428][ T5235] CR2: 00005606b6327058 CR3: 000000004fdaa000 CR4: 00000000003526f0 [ 63.561427][ T5235] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 63.569443][ T5235] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 63.577734][ T5235] Kernel panic - not syncing: Fatal exception [ 63.584122][ T5235] Kernel Offset: disabled [ 63.588452][ T5235] Rebooting in 86400 seconds..