./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2479968249
<...>
Warning: Permanently added '10.128.0.165' (ED25519) to the list of known hosts.
execve("./syz-executor2479968249", ["./syz-executor2479968249"], 0x7ffd683c9830 /* 10 vars */) = 0
brk(NULL) = 0x55555f8fc000
brk(0x55555f8fce00) = 0x55555f8fce00
arch_prctl(ARCH_SET_FS, 0x55555f8fc480) = 0
set_tid_address(0x55555f8fc750) = 5221
set_robust_list(0x55555f8fc760, 24) = 0
rseq(0x55555f8fcda0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2479968249", 4096) = 28
getrandom("\x7b\xa3\xff\x16\x1c\xc0\x51\xaf", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x55555f8fce00
brk(0x55555f91de00) = 0x55555f91de00
brk(0x55555f91e000) = 0x55555f91e000
mprotect(0x7f2d71724000, 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=0x7f2d71670a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f2d71679810}, NULL, 8) = 0
rt_sigaction(SIGBUS, {sa_handler=0x7f2d71670a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f2d71679810}, 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 5222 attached
, child_tidptr=0x55555f8fc750) = 5222
[pid 5222] set_robust_list(0x55555f8fc760, 24) = 0
[pid 5222] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5222] setpgid(0, 0) = 0
[pid 5222] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5222] write(3, "1000", 4) = 4
executing program
[pid 5222] close(3) = 0
[pid 5222] write(1, "executing program\n", 18) = 18
[pid 5222] memfd_create("syzkaller", 0) = 3
[pid 5222] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2d69200000
[pid 5222] 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 5222] munmap(0x7f2d69200000, 138412032) = 0
[pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5222] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5222] close(3) = 0
[pid 5222] close(4) = 0
[pid 5222] mkdir("./file0", 0777) = 0
syzkaller login: [ 80.270727][ T5222] loop0: detected capacity change from 0 to 32768
[ 80.306232][ T5222] XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791
[pid 5222] mount("/dev/loop0", "./file0", "xfs", MS_NODIRATIME|MS_RELATIME, "lazytime,uqnoenforce,swalloc,filestreams,grpquota,allocsize=09m,gquota,nomand,,nouuid") = 0
[pid 5222] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3
[pid 5222] chdir("./file0") = 0
[pid 5222] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy)
[pid 5222] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 0320) = 4
[pid 5222] mmap(0x20001000, 40960, PROT_NONE, MAP_PRIVATE|MAP_FIXED, 4, 0) = 0x20001000
[pid 5222] openat(AT_FDCWD, "./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5
[pid 5222] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b40} ---
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b43} ---
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4a} ---
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4b} ---
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4d} ---
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4e} ---
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b56} ---
[pid 5222] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b57} ---
[ 80.359397][ T5222] XFS (loop0): Ending clean mount
[ 80.370520][ T5222] XFS (loop0): Quotacheck needed: Please wait.
[ 80.397665][ T5222] XFS (loop0): Quotacheck: Done.
[pid 5222] write(6, 0x20003b40, 4119) = -1 EFAULT (Bad address)
[pid 5222] 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 5222] copy_file_range(6, [0], 5, NULL, 18446744072099193947, 0) = 3584
[ 80.471582][ T5222] ------------[ cut here ]------------
[ 80.477204][ T5222] WARNING: CPU: 1 PID: 5222 at fs/iomap/buffered-io.c:727 iomap_write_begin+0x13f0/0x16f0
[ 80.487208][ T5222] Modules linked in:
[ 80.491275][ T5222] CPU: 1 UID: 0 PID: 5222 Comm: syz-executor247 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0
[ 80.502788][ T5222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[ 80.512961][ T5222] RIP: 0010:iomap_write_begin+0x13f0/0x16f0
[ 80.518950][ T5222] 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
[ 80.538655][ T5222] RSP: 0018:ffffc90003a577c0 EFLAGS: 00010293
[ 80.544768][ T5222] RAX: ffffffff822a858f RBX: 0000000000000080 RCX: ffff888023080000
[ 80.552833][ T5222] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
[ 80.560976][ T5222] RBP: ffffc90003a57a50 R08: ffffffff822a8294 R09: 1ffff11029263f69
[ 80.569190][ T5222] R10: dffffc0000000000 R11: ffffed1029263f6a R12: ffffc90003a579b0
[ 80.577191][ T5222] R13: ffffc90003a57bf0 R14: ffffc90003a57990 R15: 0000000000000800
[ 80.585252][ T5222] FS: 000055555f8fc480(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
[ 80.594366][ T5222] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 80.601083][ T5222] CR2: 0000000020001000 CR3: 0000000079b06000 CR4: 00000000003506f0
[ 80.609138][ T5222] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 80.617147][ T5222] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 80.625224][ T5222] Call Trace:
[ 80.628559][ T5222]
[ 80.631497][ T5222] ? __warn+0x163/0x4e0
[ 80.635758][ T5222] ? iomap_write_begin+0x13f0/0x16f0
[ 80.641151][ T5222] ? report_bug+0x2b3/0x500
[ 80.645695][ T5222] ? iomap_write_begin+0x13f0/0x16f0
[ 80.651060][ T5222] ? handle_bug+0x3e/0x70
[ 80.655443][ T5222] ? exc_invalid_op+0x1a/0x50
[ 80.660275][ T5222] ? asm_exc_invalid_op+0x1a/0x20
[ 80.665367][ T5222] ? iomap_write_begin+0x10f4/0x16f0
[ 80.670731][ T5222] ? iomap_write_begin+0x13ef/0x16f0
[ 80.676063][ T5222] ? iomap_write_begin+0x13f0/0x16f0
[ 80.681467][ T5222] ? __pfx_iomap_write_begin+0x10/0x10
[ 80.686986][ T5222] ? __pfx_xfs_buffered_write_delalloc_punch+0x10/0x10
[ 80.694019][ T5222] ? balance_dirty_pages_ratelimited_flags+0x137/0xd10
[ 80.700948][ T5222] ? __pfx_lock_release+0x10/0x10
[ 80.705995][ T5222] ? rcu_is_watching+0x15/0xb0
[ 80.710843][ T5222] ? iomap_iter+0x968/0xf60
[ 80.715378][ T5222] iomap_file_unshare+0x460/0x780
[ 80.720591][ T5222] ? __pfx_iomap_file_unshare+0x10/0x10
[ 80.726186][ T5222] ? __pfx_xfs_vn_update_time+0x10/0x10
[ 80.731816][ T5222] ? __pfx_inode_dio_wait+0x10/0x10
[ 80.737055][ T5222] ? xfs_break_layouts+0x23a/0x2e0
[ 80.742300][ T5222] xfs_reflink_unshare+0x173/0x5f0
[ 80.747445][ T5222] xfs_file_fallocate+0x6be/0xa50
[ 80.752539][ T5222] ? __pfx_lock_acquire+0x10/0x10
[ 80.757599][ T5222] ? __pfx_xfs_file_fallocate+0x10/0x10
[ 80.763236][ T5222] ? rcu_read_lock_any_held+0xb7/0x160
[ 80.768765][ T5222] ? __pfx_rcu_read_lock_any_held+0x10/0x10
[ 80.775182][ T5222] vfs_fallocate+0x553/0x6c0
[ 80.779915][ T5222] __x64_sys_fallocate+0xbd/0x110
[ 80.784975][ T5222] do_syscall_64+0xf3/0x230
[ 80.789570][ T5222] ? clear_bhb_loop+0x35/0x90
[ 80.794363][ T5222] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 80.800366][ T5222] RIP: 0033:0x7f2d716a6899
[ 80.804810][ T5222] 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
[ 80.824517][ T5222] RSP: 002b:00007ffd620c3d18 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[ 80.833000][ T5222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2d716a6899
[ 80.841079][ T5222] RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006
[ 80.849113][ T5222] RBP: 0000000000000000 R08: 0700000000000000 R09: 0700000000000000
[ 80.857108][ T5222] R10: 0000000000002000 R11: 0000000000000246 R12: 00007ffd620c3d60
[ 80.865212][ T5222] R13: 00007ffd620c3fe8 R14: 431bde82d7b634db R15: 00007f2d716ef03b
[ 80.873274][ T5222]
[ 80.876325][ T5222] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 80.883619][ T5222] CPU: 1 UID: 0 PID: 5222 Comm: syz-executor247 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0
[ 80.894729][ T5222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
[ 80.904787][ T5222] Call Trace:
[ 80.908075][ T5222]
[ 80.911010][ T5222] dump_stack_lvl+0x241/0x360
[ 80.915712][ T5222] ? __pfx_dump_stack_lvl+0x10/0x10
[ 80.920928][ T5222] ? __pfx__printk+0x10/0x10
[ 80.925539][ T5222] ? vscnprintf+0x5d/0x90
[ 80.929882][ T5222] panic+0x349/0x860
[ 80.933792][ T5222] ? __warn+0x172/0x4e0
[ 80.937956][ T5222] ? __pfx_panic+0x10/0x10
[ 80.942402][ T5222] __warn+0x346/0x4e0
[ 80.946395][ T5222] ? iomap_write_begin+0x13f0/0x16f0
[ 80.951781][ T5222] report_bug+0x2b3/0x500
[ 80.956124][ T5222] ? iomap_write_begin+0x13f0/0x16f0
[ 80.961425][ T5222] handle_bug+0x3e/0x70
[ 80.965674][ T5222] exc_invalid_op+0x1a/0x50
[ 80.970190][ T5222] asm_exc_invalid_op+0x1a/0x20
[ 80.975058][ T5222] RIP: 0010:iomap_write_begin+0x13f0/0x16f0
[ 80.980965][ T5222] 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
[ 81.000664][ T5222] RSP: 0018:ffffc90003a577c0 EFLAGS: 00010293
[ 81.006741][ T5222] RAX: ffffffff822a858f RBX: 0000000000000080 RCX: ffff888023080000
[ 81.014718][ T5222] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000
[ 81.022706][ T5222] RBP: ffffc90003a57a50 R08: ffffffff822a8294 R09: 1ffff11029263f69
[ 81.030686][ T5222] R10: dffffc0000000000 R11: ffffed1029263f6a R12: ffffc90003a579b0
[ 81.038664][ T5222] R13: ffffc90003a57bf0 R14: ffffc90003a57990 R15: 0000000000000800
[ 81.046645][ T5222] ? iomap_write_begin+0x10f4/0x16f0
[ 81.051944][ T5222] ? iomap_write_begin+0x13ef/0x16f0
[ 81.057281][ T5222] ? __pfx_iomap_write_begin+0x10/0x10
[ 81.062796][ T5222] ? __pfx_xfs_buffered_write_delalloc_punch+0x10/0x10
[ 81.069688][ T5222] ? balance_dirty_pages_ratelimited_flags+0x137/0xd10
[ 81.076736][ T5222] ? __pfx_lock_release+0x10/0x10
[ 81.081802][ T5222] ? rcu_is_watching+0x15/0xb0
[ 81.086606][ T5222] ? iomap_iter+0x968/0xf60
[ 81.091310][ T5222] iomap_file_unshare+0x460/0x780
[ 81.096363][ T5222] ? __pfx_iomap_file_unshare+0x10/0x10
[ 81.101937][ T5222] ? __pfx_xfs_vn_update_time+0x10/0x10
[ 81.107506][ T5222] ? __pfx_inode_dio_wait+0x10/0x10
[ 81.112719][ T5222] ? xfs_break_layouts+0x23a/0x2e0
[ 81.117933][ T5222] xfs_reflink_unshare+0x173/0x5f0
[ 81.123073][ T5222] xfs_file_fallocate+0x6be/0xa50
[ 81.128109][ T5222] ? __pfx_lock_acquire+0x10/0x10
[ 81.133153][ T5222] ? __pfx_xfs_file_fallocate+0x10/0x10
[ 81.138719][ T5222] ? rcu_read_lock_any_held+0xb7/0x160
[ 81.144237][ T5222] ? __pfx_rcu_read_lock_any_held+0x10/0x10
[ 81.150203][ T5222] vfs_fallocate+0x553/0x6c0
[ 81.154809][ T5222] __x64_sys_fallocate+0xbd/0x110
[ 81.159844][ T5222] do_syscall_64+0xf3/0x230
[ 81.164373][ T5222] ? clear_bhb_loop+0x35/0x90
[ 81.169078][ T5222] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 81.174987][ T5222] RIP: 0033:0x7f2d716a6899
[ 81.179411][ T5222] 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
[ 81.199022][ T5222] RSP: 002b:00007ffd620c3d18 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
[ 81.207453][ T5222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2d716a6899
[ 81.215432][ T5222] RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006
[ 81.223406][ T5222] RBP: 0000000000000000 R08: 0700000000000000 R09: 0700000000000000
[ 81.231390][ T5222] R10: 0000000000002000 R11: 0000000000000246 R12: 00007ffd620c3d60
[ 81.239368][ T5222] R13: 00007ffd620c3fe8 R14: 431bde82d7b634db R15: 00007f2d716ef03b
[ 81.247499][ T5222]
[ 81.250745][ T5222] Kernel Offset: disabled
[ 81.255135][ T5222] Rebooting in 86400 seconds..