./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2194701496 <...> Warning: Permanently added '10.128.10.52' (ECDSA) to the list of known hosts. execve("./syz-executor2194701496", ["./syz-executor2194701496"], 0x7ffece1f9ca0 /* 10 vars */) = 0 brk(NULL) = 0x5555564f6000 brk(0x5555564f6c40) = 0x5555564f6c40 arch_prctl(ARCH_SET_FS, 0x5555564f6300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2194701496", 4096) = 28 brk(0x555556517c40) = 0x555556517c40 brk(0x555556518000) = 0x555556518000 mprotect(0x7f7f7720e000, 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, 0) = 0x21000000 memfd_create("syzkaller", 0) = 3 ftruncate(3, 2304) = 0 pwrite64(3, "\xe2\xe1\xf5\xe0\x95\x21\xe9\x09\x02\x00\x18\x00\x0c\x00\x24", 15, 1024) = 15 pwrite64(3, "\x06\x00\xee\x0a\x95\x44", 6, 1152) = 6 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 ioctl(4, LOOP_SET_FD, 3) = 0 mkdir("./file0", 0777) = 0 mount("/dev/loop0", "./file0", "erofs", 0, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 5 ioctl(4, LOOP_CLR_FD) = 0 close(4) = 0 close(3) = 0 syzkaller login: [ 46.194725][ T3607] loop0: detected capacity change from 0 to 4 [ 46.206412][ T3607] erofs: (device loop0): mounted with root inode @ nid 36. [ 46.217536][ T3607] ------------[ cut here ]------------ [ 46.223153][ T3607] WARNING: CPU: 1 PID: 3607 at fs/iomap/iter.c:35 iomap_iter+0x7f2/0x8a0 [ 46.231739][ T3607] Modules linked in: [ 46.236098][ T3607] CPU: 1 PID: 3607 Comm: syz-executor219 Not tainted 6.0.0-rc6-syzkaller-00321-g105a36f3694e #0 [ 46.246672][ T3607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 46.257033][ T3607] RIP: 0010:iomap_iter+0x7f2/0x8a0 [ 46.262248][ T3607] Code: c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 66 d9 7f ff 0f 0b e9 9e fe ff ff e8 5a d9 7f ff 0f 0b e9 d0 fe ff ff e8 4e d9 7f ff <0f> 0b e9 34 ff ff ff e8 42 d9 7f ff 0f 0b 41 bd fb ff ff ff eb bb [ 46.282096][ T3607] RSP: 0018:ffffc900037cf828 EFLAGS: 00010293 [ 46.288268][ T3607] RAX: ffffffff8207b0b2 RBX: 0000000000000004 RCX: ffff88807dd18000 [ 46.296338][ T3607] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 [ 46.304370][ T3607] RBP: 0000000000000004 R08: ffffffff8207afda R09: fffffbfff1c164fe [ 46.312472][ T3607] R10: fffffbfff1c164fe R11: 1ffffffff1c164fd R12: ffffc900037cf968 [ 46.320479][ T3607] R13: 1ffff920006f9f32 R14: 1ffff920006f9f2c R15: dffffc0000000000 [ 46.328555][ T3607] FS: 00005555564f6300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 46.337642][ T3607] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.344298][ T3607] CR2: 00007ffdced66000 CR3: 000000007151a000 CR4: 00000000003506e0 [ 46.352310][ T3607] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 46.360280][ T3607] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 46.368296][ T3607] Call Trace: [ 46.371602][ T3607] [ 46.374585][ T3607] iomap_fiemap+0x1b9/0x9a0 [ 46.379133][ T3607] ? iomap_dio_zero+0x680/0x680 [ 46.384073][ T3607] ? __might_fault+0xb2/0x110 [ 46.388772][ T3607] ? erofs_map_dev+0x7a0/0x7a0 [ 46.393591][ T3607] do_vfs_ioctl+0x187f/0x29a0 [ 46.398288][ T3607] ? __x64_compat_sys_ioctl+0x80/0x80 [ 46.403707][ T3607] ? __lock_acquire+0x1f60/0x1f60 [ 46.408742][ T3607] ? slab_free_freelist_hook+0x12e/0x1a0 [ 46.414441][ T3607] ? tomoyo_path_number_perm+0x5be/0x790 [ 46.420086][ T3607] ? kfree+0xda/0x210 [ 46.424144][ T3607] ? tomoyo_path_number_perm+0x627/0x790 [ 46.429798][ T3607] ? tomoyo_check_path_acl+0x1c0/0x1c0 [ 46.435381][ T3607] ? bpf_lsm_file_ioctl+0x5/0x10 [ 46.440358][ T3607] ? security_file_ioctl+0x9d/0xb0 [ 46.445584][ T3607] __se_sys_ioctl+0x83/0x170 [ 46.450189][ T3607] do_syscall_64+0x3d/0xb0 [ 46.454893][ T3607] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 46.460823][ T3607] RIP: 0033:0x7f7f771a1de9 [ 46.465307][ T3607] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 [ 46.484956][ T3607] RSP: 002b:00007ffdced653c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.493408][ T3607] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f771a1de9 [ 46.501398][ T3607] RDX: 00000000200002c0 RSI: 00000000c020660b RDI: 0000000000000005 [ 46.509433][ T3607] RBP: 00007f7f771615e0 R08: 0000000000000000 R09: 0000000000000000 [ 46.517438][ T3607] R10: 00007ffdced65280 R11: 0000000000000246 R12: 00007f7f77161670 [ 46.525454][ T3607] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 46.533470][ T3607] [ 46.536479][ T3607] Kernel panic - not syncing: panic_on_warn set ... [ 46.543044][ T3607] CPU: 1 PID: 3607 Comm: syz-executor219 Not tainted 6.0.0-rc6-syzkaller-00321-g105a36f3694e #0 [ 46.553450][ T3607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 46.563491][ T3607] Call Trace: [ 46.566762][ T3607] [ 46.569679][ T3607] dump_stack_lvl+0x1b1/0x28e [ 46.574346][ T3607] ? fortify_panic+0x13/0x13 [ 46.578928][ T3607] ? panic+0x715/0x715 [ 46.582993][ T3607] ? vscnprintf+0x59/0x80 [ 46.587308][ T3607] ? iomap_iter+0x740/0x8a0 [ 46.591813][ T3607] panic+0x2d6/0x715 [ 46.595702][ T3607] ? __warn+0x131/0x220 [ 46.599852][ T3607] ? fb_is_primary_device+0xcc/0xcc [ 46.605054][ T3607] ? iomap_iter+0x7f2/0x8a0 [ 46.609548][ T3607] __warn+0x1fa/0x220 [ 46.613551][ T3607] ? iomap_iter+0x7f2/0x8a0 [ 46.618047][ T3607] report_bug+0x1b3/0x2d0 [ 46.622372][ T3607] handle_bug+0x3d/0x70 [ 46.626882][ T3607] exc_invalid_op+0x16/0x40 [ 46.631377][ T3607] asm_exc_invalid_op+0x16/0x20 [ 46.636219][ T3607] RIP: 0010:iomap_iter+0x7f2/0x8a0 [ 46.641334][ T3607] Code: c4 40 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 66 d9 7f ff 0f 0b e9 9e fe ff ff e8 5a d9 7f ff 0f 0b e9 d0 fe ff ff e8 4e d9 7f ff <0f> 0b e9 34 ff ff ff e8 42 d9 7f ff 0f 0b 41 bd fb ff ff ff eb bb [ 46.660945][ T3607] RSP: 0018:ffffc900037cf828 EFLAGS: 00010293 [ 46.667031][ T3607] RAX: ffffffff8207b0b2 RBX: 0000000000000004 RCX: ffff88807dd18000 [ 46.674995][ T3607] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 [ 46.682976][ T3607] RBP: 0000000000000004 R08: ffffffff8207afda R09: fffffbfff1c164fe [ 46.690967][ T3607] R10: fffffbfff1c164fe R11: 1ffffffff1c164fd R12: ffffc900037cf968 [ 46.698937][ T3607] R13: 1ffff920006f9f32 R14: 1ffff920006f9f2c R15: dffffc0000000000 [ 46.706915][ T3607] ? iomap_iter+0x71a/0x8a0 [ 46.711409][ T3607] ? iomap_iter+0x7f2/0x8a0 [ 46.715923][ T3607] ? iomap_iter+0x7f2/0x8a0 [ 46.720423][ T3607] iomap_fiemap+0x1b9/0x9a0 [ 46.724949][ T3607] ? iomap_dio_zero+0x680/0x680 [ 46.729824][ T3607] ? __might_fault+0xb2/0x110 [ 46.734510][ T3607] ? erofs_map_dev+0x7a0/0x7a0 [ 46.739269][ T3607] do_vfs_ioctl+0x187f/0x29a0 [ 46.743941][ T3607] ? __x64_compat_sys_ioctl+0x80/0x80 [ 46.749395][ T3607] ? __lock_acquire+0x1f60/0x1f60 [ 46.754413][ T3607] ? slab_free_freelist_hook+0x12e/0x1a0 [ 46.760043][ T3607] ? tomoyo_path_number_perm+0x5be/0x790 [ 46.765683][ T3607] ? kfree+0xda/0x210 [ 46.769658][ T3607] ? tomoyo_path_number_perm+0x627/0x790 [ 46.775286][ T3607] ? tomoyo_check_path_acl+0x1c0/0x1c0 [ 46.780769][ T3607] ? bpf_lsm_file_ioctl+0x5/0x10 [ 46.785717][ T3607] ? security_file_ioctl+0x9d/0xb0 [ 46.790827][ T3607] __se_sys_ioctl+0x83/0x170 [ 46.795427][ T3607] do_syscall_64+0x3d/0xb0 [ 46.800270][ T3607] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 46.806159][ T3607] RIP: 0033:0x7f7f771a1de9 [ 46.810565][ T3607] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 [ 46.830264][ T3607] RSP: 002b:00007ffdced653c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 46.838669][ T3607] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f771a1de9 [ 46.846635][ T3607] RDX: 00000000200002c0 RSI: 00000000c020660b RDI: 0000000000000005 [ 46.854613][ T3607] RBP: 00007f7f771615e0 R08: 0000000000000000 R09: 0000000000000000 [ 46.862574][ T3607] R10: 00007ffdced65280 R11: 0000000000000246 R12: 00007f7f77161670 [ 46.870537][ T3607] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 46.878510][ T3607] [ 46.882079][ T3607] Kernel Offset: disabled [ 46.886449][ T3607] Rebooting in 86400 seconds..