./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4265541096
<...>
Warning: Permanently added '10.128.1.12' (ED25519) to the list of known hosts.
execve("./syz-executor4265541096", ["./syz-executor4265541096"], 0x7ffdfc7052e0 /* 10 vars */) = 0
brk(NULL) = 0x55556a6aa000
brk(0x55556a6aae00) = 0x55556a6aae00
arch_prctl(ARCH_SET_FS, 0x55556a6aa480) = 0
set_tid_address(0x55556a6aa750) = 5216
set_robust_list(0x55556a6aa760, 24) = 0
rseq(0x55556a6aada0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor4265541096", 4096) = 28
getrandom("\xbe\xa5\x6c\x1a\x04\xed\x2f\xff", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55556a6aae00
brk(0x55556a6cbe00) = 0x55556a6cbe00
brk(0x55556a6cc000) = 0x55556a6cc000
mprotect(0x7f2b4ea64000, 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=0x7f2b4e9b0a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f2b4e9b9810}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f2b4e9b0a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f2b4e9b9810}, 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 5217 attached
, child_tidptr=0x55556a6aa750) = 5217
[pid 5217] set_robust_list(0x55556a6aa760, 24) = 0
[pid 5217] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5217] setpgid(0, 0) = 0
[pid 5217] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5217] write(3, "1000", 4) = 4
[pid 5217] close(3) = 0
[pid 5217] write(1, "executing program\n", 18executing program
) = 18
[pid 5217] memfd_create("syzkaller", 0) = 3
[pid 5217] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2b46400000
[pid 5217] write(3, "\x58\x46\x53\x42\x00\x00\x08\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbf\xdc\x47\xfc\x10\xd8\x4e\xed\xa5\x62\x11\xa8\x31\xb3\xf7\x91\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x24\x40\x00\x00\x00\x00\x00\x00\x24\x41\x00\x00\x00\x00\x00\x00\x24\x42\x00\x00\x00\x02\x00\x00\x20\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x12\x00"..., 16777216) = 16777216
[pid 5217] munmap(0x7f2b46400000, 138412032) = 0
[pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5217] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5217] close(3) = 0
[pid 5217] close(4) = 0
[pid 5217] mkdir("./file0", 0777) = 0
syzkaller login: [ 71.460432][ T5217] loop0: detected capacity change from 0 to 32768
[ 71.512679][ T5217] XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791
[pid 5217] mount("/dev/loop0", "./file0", "xfs", MS_NODIRATIME|MS_RELATIME, "lazytime,uqnoenforce,swalloc,filestreams,grpquota,allocsize=09m,gquota,nomand,,nouuid") = 0
[pid 5217] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5217] chdir("./file0") = 0
[pid 5217] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5217] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 0320) = 4
[pid 5217] mmap(0x20001000, 40960, PROT_NONE, MAP_PRIVATE|MAP_FIXED, 4, 0) = 0x20001000
[pid 5217] openat(AT_FDCWD, "./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid 5217] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b40} ---
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b43} ---
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4a} ---
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4b} ---
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4d} ---
[ 71.561146][ T5217] XFS (loop0): Ending clean mount
[ 71.571069][ T5217] XFS (loop0): Quotacheck needed: Please wait.
[ 71.597106][ T5217] XFS (loop0): Quotacheck: Done.
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4e} ---
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b56} ---
[pid 5217] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b57} ---
[pid 5217] write(6, 0x20003b40, 4119) = -1 EFAULT (Bad address)
[pid 5217] write(6, "\x23\x21\x20\x0a\x73\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"..., 65191) = 3584
[pid 5217] copy_file_range(6, [0], 5, NULL, 18446744072099193947, 0) = 3584
[ 71.681986][ T5217] ------------[ cut here ]------------
[ 71.687719][ T5217] WARNING: CPU: 0 PID: 5217 at fs/iomap/buffered-io.c:727 iomap_write_begin+0x13f0/0x16f0
[ 71.697768][ T5217] Modules linked in:
[ 71.701689][ T5217] CPU: 0 UID: 0 PID: 5217 Comm: syz-executor426 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0
[ 71.712853][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[ 71.722980][ T5217] RIP: 0010:iomap_write_begin+0x13f0/0x16f0
[ 71.728964][ T5217] Code: b5 0d 01 90 48 c7 c7 a0 54 fa 8b e8 da 19 2b ff 90 0f 0b 90 90 e9 74 ef ff ff e8 5b f1 68 ff e9 4b f6 ff ff e8 51 f1 68 ff 90 <0f> 0b 90 bb fb ff ff ff e9 e9 fe ff ff e8 3e f1 68 ff 90 0f 0b 90
[ 71.748658][ T5217] RSP: 0018:ffffc90002d2f7c0 EFLAGS: 00010293
[ 71.754765][ T5217] RAX: ffffffff822a858f RBX: 0000000000000080 RCX: ffff888025ea1e00
[ 71.762797][ T5217] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
[ 71.770845][ T5217] RBP: ffffc90002d2fa50 R08: ffffffff822a8294 R09: 1ffff11005e3f719
[ 71.778894][ T5217] R10: dffffc0000000000 R11: ffffed1005e3f71a R12: ffffc90002d2f9b0
[ 71.786938][ T5217] R13: ffffc90002d2fbf0 R14: ffffc90002d2f990 R15: 0000000000000800
[ 71.794964][ T5217] FS: 000055556a6aa480(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
[ 71.803928][ T5217] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 71.810587][ T5217] CR2: 0000000020001000 CR3: 0000000078060000 CR4: 00000000003506f0
[ 71.818605][ T5217] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 71.826640][ T5217] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 71.834629][ T5217] Call Trace:
[ 71.837968][ T5217]
[ 71.840920][ T5217] ? __warn+0x163/0x4e0
[ 71.845173][ T5217] ? iomap_write_begin+0x13f0/0x16f0
[ 71.850492][ T5217] ? report_bug+0x2b3/0x500
[ 71.855063][ T5217] ? iomap_write_begin+0x13f0/0x16f0
[ 71.860377][ T5217] ? handle_bug+0x3e/0x70
[ 71.864706][ T5217] ? exc_invalid_op+0x1a/0x50
[ 71.869455][ T5217] ? asm_exc_invalid_op+0x1a/0x20
[ 71.874520][ T5217] ? iomap_write_begin+0x10f4/0x16f0
[ 71.880329][ T5217] ? iomap_write_begin+0x13ef/0x16f0
[ 71.885699][ T5217] ? iomap_write_begin+0x13f0/0x16f0
[ 71.891016][ T5217] ? __pfx_iomap_write_begin+0x10/0x10
[ 71.896541][ T5217] ? __pfx_xfs_buffered_write_delalloc_punch+0x10/0x10
[ 71.903424][ T5217] ? balance_dirty_pages_ratelimited_flags+0x137/0xd10
[ 71.910348][ T5217] ? __pfx_lock_release+0x10/0x10
[ 71.915464][ T5217] ? rcu_is_watching+0x15/0xb0
[ 71.920256][ T5217] ? iomap_iter+0x968/0xf60
[ 71.924774][ T5217] iomap_file_unshare+0x460/0x780
[ 71.929886][ T5217] ? __pfx_iomap_file_unshare+0x10/0x10
[ 71.935485][ T5217] ? __pfx_xfs_vn_update_time+0x10/0x10
[ 71.941027][ T5217] ? __pfx_inode_dio_wait+0x10/0x10
[ 71.946303][ T5217] ? xfs_break_layouts+0x23a/0x2e0
[ 71.951439][ T5217] xfs_reflink_unshare+0x173/0x5f0
[ 71.956616][ T5217] xfs_file_fallocate+0x6be/0xa50
[ 71.961662][ T5217] ? __pfx_lock_acquire+0x10/0x10
[ 71.966779][ T5217] ? __pfx_xfs_file_fallocate+0x10/0x10
[ 71.972344][ T5217] ? rcu_read_lock_any_held+0xb7/0x160
[ 71.977850][ T5217] ? __pfx_rcu_read_lock_any_held+0x10/0x10
[ 71.983781][ T5217] vfs_fallocate+0x553/0x6c0
[ 71.988491][ T5217] __x64_sys_fallocate+0xbd/0x110
[ 71.993548][ T5217] do_syscall_64+0xf3/0x230
[ 71.998118][ T5217] ? clear_bhb_loop+0x35/0x90
[ 72.002825][ T5217] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 72.008816][ T5217] RIP: 0033:0x7f2b4e9e6899
[ 72.013253][ T5217] 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
[ 72.032912][ T5217] RSP: 002b:00007ffcc5884d08 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[ 72.041395][ T5217] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2b4e9e6899
[ 72.049433][ T5217] RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006
[ 72.057476][ T5217] RBP: 0000000000000000 R08: 0700000000000000 R09: 0700000000000000
[ 72.065536][ T5217] R10: 0000000000002000 R11: 0000000000000246 R12: 00007ffcc5884d50
[ 72.073547][ T5217] R13: 00007ffcc5884fd8 R14: 431bde82d7b634db R15: 00007f2b4ea2f03b
[ 72.081603][ T5217]
[ 72.084644][ T5217] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 72.091917][ T5217] CPU: 0 UID: 0 PID: 5217 Comm: syz-executor426 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0
[ 72.103053][ T5217] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[ 72.113106][ T5217] Call Trace:
[ 72.116381][ T5217]
[ 72.119306][ T5217] dump_stack_lvl+0x241/0x360
[ 72.123992][ T5217] ? __pfx_dump_stack_lvl+0x10/0x10
[ 72.129199][ T5217] ? __pfx__printk+0x10/0x10
[ 72.133790][ T5217] ? vscnprintf+0x5d/0x90
[ 72.138133][ T5217] panic+0x349/0x860
[ 72.142129][ T5217] ? __warn+0x172/0x4e0
[ 72.146307][ T5217] ? __pfx_panic+0x10/0x10
[ 72.150740][ T5217] __warn+0x346/0x4e0
[ 72.154714][ T5217] ? iomap_write_begin+0x13f0/0x16f0
[ 72.160004][ T5217] report_bug+0x2b3/0x500
[ 72.164344][ T5217] ? iomap_write_begin+0x13f0/0x16f0
[ 72.169634][ T5217] handle_bug+0x3e/0x70
[ 72.173819][ T5217] exc_invalid_op+0x1a/0x50
[ 72.178320][ T5217] asm_exc_invalid_op+0x1a/0x20
[ 72.183164][ T5217] RIP: 0010:iomap_write_begin+0x13f0/0x16f0
[ 72.189062][ T5217] Code: b5 0d 01 90 48 c7 c7 a0 54 fa 8b e8 da 19 2b ff 90 0f 0b 90 90 e9 74 ef ff ff e8 5b f1 68 ff e9 4b f6 ff ff e8 51 f1 68 ff 90 <0f> 0b 90 bb fb ff ff ff e9 e9 fe ff ff e8 3e f1 68 ff 90 0f 0b 90
[ 72.208672][ T5217] RSP: 0018:ffffc90002d2f7c0 EFLAGS: 00010293
[ 72.214747][ T5217] RAX: ffffffff822a858f RBX: 0000000000000080 RCX: ffff888025ea1e00
[ 72.222723][ T5217] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
[ 72.230712][ T5217] RBP: ffffc90002d2fa50 R08: ffffffff822a8294 R09: 1ffff11005e3f719
[ 72.238681][ T5217] R10: dffffc0000000000 R11: ffffed1005e3f71a R12: ffffc90002d2f9b0
[ 72.246650][ T5217] R13: ffffc90002d2fbf0 R14: ffffc90002d2f990 R15: 0000000000000800
[ 72.254626][ T5217] ? iomap_write_begin+0x10f4/0x16f0
[ 72.259920][ T5217] ? iomap_write_begin+0x13ef/0x16f0
[ 72.265240][ T5217] ? __pfx_iomap_write_begin+0x10/0x10
[ 72.270720][ T5217] ? __pfx_xfs_buffered_write_delalloc_punch+0x10/0x10
[ 72.277580][ T5217] ? balance_dirty_pages_ratelimited_flags+0x137/0xd10
[ 72.284439][ T5217] ? __pfx_lock_release+0x10/0x10
[ 72.289484][ T5217] ? rcu_is_watching+0x15/0xb0
[ 72.294260][ T5217] ? iomap_iter+0x968/0xf60
[ 72.298780][ T5217] iomap_file_unshare+0x460/0x780
[ 72.303821][ T5217] ? __pfx_iomap_file_unshare+0x10/0x10
[ 72.309382][ T5217] ? __pfx_xfs_vn_update_time+0x10/0x10
[ 72.314951][ T5217] ? __pfx_inode_dio_wait+0x10/0x10
[ 72.320161][ T5217] ? xfs_break_layouts+0x23a/0x2e0
[ 72.325312][ T5217] xfs_reflink_unshare+0x173/0x5f0
[ 72.330452][ T5217] xfs_file_fallocate+0x6be/0xa50
[ 72.335478][ T5217] ? __pfx_lock_acquire+0x10/0x10
[ 72.340510][ T5217] ? __pfx_xfs_file_fallocate+0x10/0x10
[ 72.346057][ T5217] ? rcu_read_lock_any_held+0xb7/0x160
[ 72.351518][ T5217] ? __pfx_rcu_read_lock_any_held+0x10/0x10
[ 72.357460][ T5217] vfs_fallocate+0x553/0x6c0
[ 72.362053][ T5217] __x64_sys_fallocate+0xbd/0x110
[ 72.367082][ T5217] do_syscall_64+0xf3/0x230
[ 72.371601][ T5217] ? clear_bhb_loop+0x35/0x90
[ 72.376286][ T5217] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 72.382185][ T5217] RIP: 0033:0x7f2b4e9e6899
[ 72.386600][ T5217] 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
[ 72.406209][ T5217] RSP: 002b:00007ffcc5884d08 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[ 72.414658][ T5217] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2b4e9e6899
[ 72.422633][ T5217] RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006
[ 72.430601][ T5217] RBP: 0000000000000000 R08: 0700000000000000 R09: 0700000000000000
[ 72.438568][ T5217] R10: 0000000000002000 R11: 0000000000000246 R12: 00007ffcc5884d50
[ 72.446536][ T5217] R13: 00007ffcc5884fd8 R14: 431bde82d7b634db R15: 00007f2b4ea2f03b
[ 72.454521][ T5217]
[ 72.457825][ T5217] Kernel Offset: disabled
[ 72.462199][ T5217] Rebooting in 86400 seconds..