./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2834587335 <...> Warning: Permanently added '10.128.0.81' (ED25519) to the list of known hosts. execve("./syz-executor2834587335", ["./syz-executor2834587335"], 0x7ffff7089ff0 /* 10 vars */) = 0 brk(NULL) = 0x55556494d000 brk(0x55556494de00) = 0x55556494de00 arch_prctl(ARCH_SET_FS, 0x55556494d480) = 0 set_tid_address(0x55556494d750) = 5083 set_robust_list(0x55556494d760, 24) = 0 rseq(0x55556494dda0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2834587335", 4096) = 28 getrandom("\x69\xb4\xb2\x03\xa1\x7b\xe6\xe7", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556494de00 brk(0x55556496ee00) = 0x55556496ee00 brk(0x55556496f000) = 0x55556496f000 mprotect(0x7fa292cdc000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7fa292c32a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fa292c3af10}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7fa292c32a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7fa292c3af10}, NULL, 8) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5084 attached [pid 5084] set_robust_list(0x55556494d760, 24 [pid 5083] <... clone resumed>, child_tidptr=0x55556494d750) = 5084 [pid 5084] <... set_robust_list resumed>) = 0 [pid 5084] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5084] setpgid(0, 0) = 0 [pid 5084] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5084] write(3, "1000", 4) = 4 [pid 5084] close(3) = 0 [pid 5084] memfd_create("syzkaller", 0) = 3 [pid 5084] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa28a800000 [pid 5084] 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"..., 2097152) = 2097152 [pid 5084] munmap(0x7fa28a800000, 138412032) = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5084] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5084] close(3) = 0 [pid 5084] close(4) = 0 [pid 5084] mkdir("./file0", 0777) = 0 [ 75.257698][ T5084] loop0: detected capacity change from 0 to 4096 [pid 5084] mount("/dev/loop0", "./file0", "nilfs2", MS_SYNCHRONOUS|MS_I_VERSION, "") = 0 [pid 5084] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5084] chdir("./file0") = 0 [pid 5084] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5084] rename("./file1", "./file0/file1") = 0 [ 75.321405][ T5086] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 75.363684][ T5084] ------------[ cut here ]------------ [ 75.369266][ T5084] kernel BUG at fs/buffer.c:2083! [ 75.374763][ T5084] invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI [ 75.381352][ T5084] CPU: 0 PID: 5084 Comm: syz-executor283 Not tainted 6.9.0-rc6-syzkaller-00012-g9e4bc4bcae01 #0 [ 75.391846][ T5084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 75.401889][ T5084] RIP: 0010:__block_write_begin_int+0x19a7/0x1a70 [ 75.408313][ T5084] Code: 31 ff e8 ac 35 78 ff 48 89 d8 48 25 ff 0f 00 00 74 27 e8 bc 30 78 ff e9 c6 e7 ff ff e8 b2 30 78 ff 90 0f 0b e8 aa 30 78 ff 90 <0f> 0b e8 a2 30 78 ff 90 0f 0b e8 ca 5d 62 09 48 8b 5c 24 08 48 89 [ 75.427932][ T5084] RSP: 0018:ffffc90003327760 EFLAGS: 00010293 [ 75.433998][ T5084] RAX: ffffffff821ddf06 RBX: 0000000000007b54 RCX: ffff88802eff3c00 [ 75.441985][ T5084] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000007b54 [ 75.449950][ T5084] RBP: ffffc900033278c8 R08: ffffffff821dc733 R09: 1ffffd400006f810 [ 75.457918][ T5084] R10: dffffc0000000000 R11: fffff9400006f811 R12: 00fff0000000920d [ 75.465883][ T5084] R13: 0000000000000000 R14: 0000000000001000 R15: 0000000000007b54 [ 75.473848][ T5084] FS: 000055556494d480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 75.482772][ T5084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.489367][ T5084] CR2: 000055838a10d7f0 CR3: 0000000078508000 CR4: 0000000000350ef0 [ 75.497336][ T5084] Call Trace: [ 75.500612][ T5084] [ 75.503549][ T5084] ? __die_body+0x88/0xe0 [ 75.507885][ T5084] ? die+0xcf/0x110 [ 75.511690][ T5084] ? do_trap+0x15a/0x3a0 [ 75.515943][ T5084] ? __block_write_begin_int+0x19a7/0x1a70 [ 75.521758][ T5084] ? do_error_trap+0x1dc/0x2c0 [ 75.526533][ T5084] ? __block_write_begin_int+0x19a7/0x1a70 [ 75.532364][ T5084] ? __pfx_do_error_trap+0x10/0x10 [ 75.537499][ T5084] ? report_bug+0x3e8/0x500 [ 75.542021][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.547666][ T5084] ? handle_invalid_op+0x34/0x40 [ 75.552614][ T5084] ? __block_write_begin_int+0x19a7/0x1a70 [ 75.558424][ T5084] ? exc_invalid_op+0x38/0x50 [ 75.563111][ T5084] ? asm_exc_invalid_op+0x1a/0x20 [ 75.568138][ T5084] ? __block_write_begin_int+0x1d3/0x1a70 [ 75.573861][ T5084] ? __block_write_begin_int+0x19a6/0x1a70 [ 75.579675][ T5084] ? __block_write_begin_int+0x19a7/0x1a70 [ 75.585516][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.591154][ T5084] ? __pfx___might_resched+0x10/0x10 [ 75.596445][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.602080][ T5084] ? block_write_end+0xaf/0x1c0 [ 75.606934][ T5084] ? __pfx_nilfs_get_block+0x10/0x10 [ 75.612216][ T5084] ? __pfx___block_write_begin_int+0x10/0x10 [ 75.618204][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.623839][ T5084] ? __block_write_begin+0x64/0x150 [ 75.629048][ T5084] nilfs_set_link+0xc5/0x2a0 [ 75.633647][ T5084] nilfs_rename+0x5b2/0xaf0 [ 75.638162][ T5084] ? __pfx_nilfs_rename+0x10/0x10 [ 75.643192][ T5084] ? do_raw_spin_lock+0x14f/0x370 [ 75.648229][ T5084] ? __pfx_lock_release+0x10/0x10 [ 75.653258][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.658893][ T5084] ? do_raw_spin_unlock+0x13c/0x8b0 [ 75.664097][ T5084] ? __asan_memcpy+0x40/0x70 [ 75.668693][ T5084] ? __pfx_nilfs_rename+0x10/0x10 [ 75.673733][ T5084] vfs_rename+0xbdd/0xf00 [ 75.678081][ T5084] ? __pfx_vfs_rename+0x10/0x10 [ 75.682944][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.688580][ T5084] ? security_path_rename+0x18b/0x220 [ 75.693959][ T5084] do_renameat2+0xd94/0x13f0 [ 75.698545][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.704198][ T5084] ? __pfx_do_renameat2+0x10/0x10 [ 75.709224][ T5084] ? __virt_addr_valid+0x183/0x520 [ 75.714345][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.719981][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.725620][ T5084] ? __check_object_size+0x4bc/0xa00 [ 75.730909][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.736547][ T5084] ? srso_alias_return_thunk+0x5/0xfbef5 [ 75.742182][ T5084] ? getname_flags+0x1fe/0x4f0 [ 75.746946][ T5084] __x64_sys_rename+0x86/0xa0 [ 75.751646][ T5084] do_syscall_64+0xf5/0x240 [ 75.756161][ T5084] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 75.762054][ T5084] RIP: 0033:0x7fa292c67f99 [ 75.766461][ T5084] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 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 b8 ff ff ff f7 d8 64 89 01 48 [ 75.786080][ T5084] RSP: 002b:00007ffd9d3b0198 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 75.794497][ T5084] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa292c67f99 [ 75.802462][ T5084] RDX: 00007fa292c67f99 RSI: 0000000020000040 RDI: 0000000020000180 [ 75.810430][ T5084] RBP: 0000000000000000 R08: 00007ffd9d3b01d0 R09: 00007ffd9d3b01d0 [ 75.818399][ T5084] R10: 0000000000000f69 R11: 0000000000000246 R12: 00007ffd9d3b01d0 [ 75.826365][ T5084] R13: 00007ffd9d3b0458 R14: 431bde82d7b634db R15: 00007fa292cb103b [ 75.834342][ T5084] [ 75.837351][ T5084] Modules linked in: [ 75.841502][ T5084] ---[ end trace 0000000000000000 ]--- [ 75.847342][ T5084] RIP: 0010:__block_write_begin_int+0x19a7/0x1a70 [ 75.853883][ T5084] Code: 31 ff e8 ac 35 78 ff 48 89 d8 48 25 ff 0f 00 00 74 27 e8 bc 30 78 ff e9 c6 e7 ff ff e8 b2 30 78 ff 90 0f 0b e8 aa 30 78 ff 90 <0f> 0b e8 a2 30 78 ff 90 0f 0b e8 ca 5d 62 09 48 8b 5c 24 08 48 89 [ 75.873591][ T5084] RSP: 0018:ffffc90003327760 EFLAGS: 00010293 [ 75.879700][ T5084] RAX: ffffffff821ddf06 RBX: 0000000000007b54 RCX: ffff88802eff3c00 [ 75.887701][ T5084] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000000007b54 [ 75.895727][ T5084] RBP: ffffc900033278c8 R08: ffffffff821dc733 R09: 1ffffd400006f810 [ 75.903724][ T5084] R10: dffffc0000000000 R11: fffff9400006f811 R12: 00fff0000000920d [ 75.911739][ T5084] R13: 0000000000000000 R14: 0000000000001000 R15: 0000000000007b54 [ 75.919731][ T5084] FS: 000055556494d480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 75.928702][ T5084] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.935401][ T5084] CR2: 000055838a039e38 CR3: 0000000078508000 CR4: 0000000000350ef0 [ 75.943404][ T5084] Kernel panic - not syncing: Fatal exception [ 75.949686][ T5084] Kernel Offset: disabled [ 75.954000][ T5084] Rebooting in 86400 seconds..