./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2483200777
<...>
Warning: Permanently added '10.128.1.20' (ECDSA) to the list of known hosts.
execve("./syz-executor2483200777", ["./syz-executor2483200777"], 0x7fffdb28a7d0 /* 10 vars */) = 0
brk(NULL) = 0x555556c13000
brk(0x555556c13c40) = 0x555556c13c40
arch_prctl(ARCH_SET_FS, 0x555556c13300) = 0
uname({sysname="Linux", nodename="syzkaller", ...}) = 0
readlink("/proc/self/exe", "/root/syz-executor2483200777", 4096) = 28
brk(0x555556c34c40) = 0x555556c34c40
brk(0x555556c35000) = 0x555556c35000
mprotect(0x7fa54e3ac000, 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
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa545eee000
write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 16777216) = 16777216
munmap(0x7fa545eee000, 16777216) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
mkdir("./file0", 0777) = 0
syzkaller login: [ 52.643113][ T3629] loop0: detected capacity change from 0 to 32768
[ 52.654002][ T3629] BTRFS: device fsid 5ac8a51e-da3a-4998-8e66-e1df06b87bc8 devid 1 transid 8 /dev/loop0 scanned by syz-executor248 (3629)
[ 52.670841][ T3629] BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm
[ 52.680205][ T3629] BTRFS info (device loop0): using free space tree
mount("/dev/loop0", "./file0", "btrfs", 0, "noflushoncommit,rescan_uuid_tree,noacl,noautodefrag,datacow,") = 0
openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
ioctl(4, LOOP_CLR_FD) = 0
close(4) = 0
ioctl(3, BTRFS_IOC_SUBVOL_SETFLAGS, BTRFS_SUBVOL_RDONLY) = 0
[ 52.698850][ T3629] BTRFS info (device loop0): enabling ssd optimizations
[ 52.707431][ T3629] BTRFS info (device loop0): checking UUID tree
[ 52.741525][ T3629] ------------[ cut here ]------------
[ 52.747425][ T3629] WARNING: CPU: 0 PID: 3629 at fs/read_write.c:504 __kernel_write_iter+0x5a8/0x730
[ 52.757382][ T3629] Modules linked in:
[ 52.761305][ T3629] CPU: 0 PID: 3629 Comm: syz-executor248 Not tainted 6.1.0-syzkaller-00071-g3a28c2c89f4b #0
[ 52.771812][ T3629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 52.782254][ T3629] RIP: 0010:__kernel_write_iter+0x5a8/0x730
[ 52.788391][ T3629] Code: 8c e8 fc f9 c6 07 31 ff 89 c3 89 c6 e8 51 0a a5 ff 85 db 0f 85 06 bd ce 07 49 c7 c6 ea ff ff ff e9 11 ff ff ff e8 88 0d a5 ff <0f> 0b 49 c7 c6 f7 ff ff ff e9 fe fe ff ff e8 75 0d a5 ff 4c 89 ea
[ 52.808369][ T3629] RSP: 0018:ffffc90003caf6f0 EFLAGS: 00010293
[ 52.814458][ T3629] RAX: 0000000000000000 RBX: 00000000000a801d RCX: 0000000000000000
[ 52.822576][ T3629] RDX: ffff8880218f9d40 RSI: ffffffff81db0fd8 RDI: 0000000000000005
[ 52.830890][ T3629] RBP: 1ffff92000795ee0 R08: 0000000000000005 R09: 0000000000000000
[ 52.838967][ T3629] R10: 0000000000000000 R11: 0000000000000005 R12: ffff888075293680
[ 52.847395][ T3629] R13: ffff8880752936fc R14: 0000000000000000 R15: ffff88801d4e8808
[ 52.855476][ T3629] FS: 0000555556c13300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
[ 52.864424][ T3629] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 52.871077][ T3629] CR2: 00007fffdb288d98 CR3: 0000000076f45000 CR4: 0000000000350ef0
[ 52.879154][ T3629] Call Trace:
[ 52.882434][ T3629]
[ 52.885424][ T3629] ? vfs_read+0x930/0x930
[ 52.889810][ T3629] ? apparmor_file_permission+0x268/0x4e0
[ 52.895613][ T3629] ? bpf_lsm_file_permission+0x9/0x10
[ 52.901046][ T3629] ? security_file_permission+0xaf/0xd0
[ 52.906671][ T3629] kernel_write+0x1c1/0x630
[ 52.911194][ T3629] ? btrfs_drop_inode+0x170/0x170
[ 52.916273][ T3629] ? __kernel_write+0x110/0x110
[ 52.921161][ T3629] btrfs_ioctl_send+0x21ae/0x64e0
[ 52.926355][ T3629] ? changed_cb+0x35e0/0x35e0
[ 52.931066][ T3629] ? __might_fault+0xd9/0x180
[ 52.935871][ T3629] ? lock_downgrade+0x6e0/0x6e0
[ 52.940887][ T3629] ? _copy_from_user+0xfd/0x170
[ 52.945817][ T3629] _btrfs_ioctl_send+0x231/0x2e0
[ 52.950857][ T3629] ? defrag_collect_targets+0x1430/0x1430
[ 52.956680][ T3629] ? tomoyo_path_number_perm+0x242/0x570
[ 52.962373][ T3629] ? lock_downgrade+0x6e0/0x6e0
[ 52.967332][ T3629] ? __kmem_cache_free+0xaf/0x3b0
[ 52.972415][ T3629] btrfs_ioctl+0x39c1/0x5c40
[ 52.977112][ T3629] ? tomoyo_execute_permission+0x4a0/0x4a0
[ 52.982976][ T3629] ? btrfs_ioctl_get_supported_features+0x50/0x50
[ 52.989801][ T3629] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 52.995899][ T3629] ? do_vfs_ioctl+0x132/0x1600
[ 53.000675][ T3629] ? vfs_fileattr_set+0xbe0/0xbe0
[ 53.005822][ T3629] ? find_held_lock+0x2d/0x110
[ 53.010641][ T3629] ? name_to_dev_t+0x12/0x990
[ 53.015369][ T3629] ? lock_downgrade+0x6e0/0x6e0
[ 53.020428][ T3629] ? bpf_lsm_file_ioctl+0x9/0x10
[ 53.025433][ T3629] ? btrfs_ioctl_get_supported_features+0x50/0x50
[ 53.031889][ T3629] __x64_sys_ioctl+0x197/0x210
[ 53.036789][ T3629] do_syscall_64+0x39/0xb0
[ 53.041273][ T3629] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 53.047327][ T3629] RIP: 0033:0x7fa54e33ab49
[ 53.051755][ T3629] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[ 53.071554][ T3629] RSP: 002b:00007ffcb150a068 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 53.080013][ T3629] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa54e33ab49
[ 53.088065][ T3629] RDX: 00000000200003c0 RSI: 0000000040489426 RDI: 0000000000000003
[ 53.096097][ T3629] RBP: 00007fa54e2fa410 R08: 0000000000000000 R09: 0000000000000000
[ 53.104086][ T3629] R10: 00000000000051af R11: 0000000000000246 R12: 00007fa54e2fa4a0
[ 53.112161][ T3629] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 53.120271][ T3629]
[ 53.123286][ T3629] Kernel panic - not syncing: panic_on_warn set ...
[ 53.129850][ T3629] CPU: 0 PID: 3629 Comm: syz-executor248 Not tainted 6.1.0-syzkaller-00071-g3a28c2c89f4b #0
[ 53.139912][ T3629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[ 53.149959][ T3629] Call Trace:
[ 53.153224][ T3629]
[ 53.156230][ T3629] dump_stack_lvl+0xd1/0x138
[ 53.160818][ T3629] panic+0x2cc/0x626
[ 53.164740][ T3629] ? panic_print_sys_info.part.0+0x110/0x110
[ 53.170722][ T3629] ? __warn.cold+0x24b/0x350
[ 53.175331][ T3629] ? __kernel_write_iter+0x5a8/0x730
[ 53.180616][ T3629] __warn.cold+0x25c/0x350
[ 53.185037][ T3629] ? __kernel_write_iter+0x5a8/0x730
[ 53.190318][ T3629] report_bug+0x1c0/0x210
[ 53.194734][ T3629] handle_bug+0x3c/0x70
[ 53.198905][ T3629] exc_invalid_op+0x18/0x50
[ 53.203398][ T3629] asm_exc_invalid_op+0x1a/0x20
[ 53.208250][ T3629] RIP: 0010:__kernel_write_iter+0x5a8/0x730
[ 53.214152][ T3629] Code: 8c e8 fc f9 c6 07 31 ff 89 c3 89 c6 e8 51 0a a5 ff 85 db 0f 85 06 bd ce 07 49 c7 c6 ea ff ff ff e9 11 ff ff ff e8 88 0d a5 ff <0f> 0b 49 c7 c6 f7 ff ff ff e9 fe fe ff ff e8 75 0d a5 ff 4c 89 ea
[ 53.233768][ T3629] RSP: 0018:ffffc90003caf6f0 EFLAGS: 00010293
[ 53.239844][ T3629] RAX: 0000000000000000 RBX: 00000000000a801d RCX: 0000000000000000
[ 53.247838][ T3629] RDX: ffff8880218f9d40 RSI: ffffffff81db0fd8 RDI: 0000000000000005
[ 53.256011][ T3629] RBP: 1ffff92000795ee0 R08: 0000000000000005 R09: 0000000000000000
[ 53.263990][ T3629] R10: 0000000000000000 R11: 0000000000000005 R12: ffff888075293680
[ 53.271961][ T3629] R13: ffff8880752936fc R14: 0000000000000000 R15: ffff88801d4e8808
[ 53.279952][ T3629] ? __kernel_write_iter+0x5a8/0x730
[ 53.285251][ T3629] ? vfs_read+0x930/0x930
[ 53.289598][ T3629] ? apparmor_file_permission+0x268/0x4e0
[ 53.295322][ T3629] ? bpf_lsm_file_permission+0x9/0x10
[ 53.300686][ T3629] ? security_file_permission+0xaf/0xd0
[ 53.306237][ T3629] kernel_write+0x1c1/0x630
[ 53.310750][ T3629] ? btrfs_drop_inode+0x170/0x170
[ 53.315798][ T3629] ? __kernel_write+0x110/0x110
[ 53.320664][ T3629] btrfs_ioctl_send+0x21ae/0x64e0
[ 53.325705][ T3629] ? changed_cb+0x35e0/0x35e0
[ 53.330382][ T3629] ? __might_fault+0xd9/0x180
[ 53.335151][ T3629] ? lock_downgrade+0x6e0/0x6e0
[ 53.340012][ T3629] ? _copy_from_user+0xfd/0x170
[ 53.344867][ T3629] _btrfs_ioctl_send+0x231/0x2e0
[ 53.349807][ T3629] ? defrag_collect_targets+0x1430/0x1430
[ 53.355526][ T3629] ? tomoyo_path_number_perm+0x242/0x570
[ 53.361180][ T3629] ? lock_downgrade+0x6e0/0x6e0
[ 53.366039][ T3629] ? __kmem_cache_free+0xaf/0x3b0
[ 53.371065][ T3629] btrfs_ioctl+0x39c1/0x5c40
[ 53.375662][ T3629] ? tomoyo_execute_permission+0x4a0/0x4a0
[ 53.381617][ T3629] ? btrfs_ioctl_get_supported_features+0x50/0x50
[ 53.388077][ T3629] ? __sanitizer_cov_trace_switch+0x54/0x90
[ 53.393978][ T3629] ? do_vfs_ioctl+0x132/0x1600
[ 53.398752][ T3629] ? vfs_fileattr_set+0xbe0/0xbe0
[ 53.403789][ T3629] ? find_held_lock+0x2d/0x110
[ 53.408642][ T3629] ? name_to_dev_t+0x12/0x990
[ 53.413324][ T3629] ? lock_downgrade+0x6e0/0x6e0
[ 53.418216][ T3629] ? bpf_lsm_file_ioctl+0x9/0x10
[ 53.423147][ T3629] ? btrfs_ioctl_get_supported_features+0x50/0x50
[ 53.429576][ T3629] __x64_sys_ioctl+0x197/0x210
[ 53.434343][ T3629] do_syscall_64+0x39/0xb0
[ 53.439454][ T3629] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 53.445349][ T3629] RIP: 0033:0x7fa54e33ab49
[ 53.449759][ T3629] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48
[ 53.469384][ T3629] RSP: 002b:00007ffcb150a068 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 53.477817][ T3629] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa54e33ab49
[ 53.485790][ T3629] RDX: 00000000200003c0 RSI: 0000000040489426 RDI: 0000000000000003
[ 53.493773][ T3629] RBP: 00007fa54e2fa410 R08: 0000000000000000 R09: 0000000000000000
[ 53.501747][ T3629] R10: 00000000000051af R11: 0000000000000246 R12: 00007fa54e2fa4a0
[ 53.509718][ T3629] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 53.517780][ T3629]
[ 53.521684][ T3629] Kernel Offset: disabled
[ 53.526094][ T3629] Rebooting in 86400 seconds..