./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor607403037 <...> Warning: Permanently added '10.128.0.213' (ED25519) to the list of known hosts. execve("./syz-executor607403037", ["./syz-executor607403037"], 0x7ffcb684fcd0 /* 10 vars */) = 0 brk(NULL) = 0x5555630f6000 brk(0x5555630f6e00) = 0x5555630f6e00 arch_prctl(ARCH_SET_FS, 0x5555630f6480) = 0 set_tid_address(0x5555630f6750) = 5213 set_robust_list(0x5555630f6760, 24) = 0 rseq(0x5555630f6da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor607403037", 4096) = 27 getrandom("\xa5\xac\x4e\xef\x60\xe0\x4e\x14", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555630f6e00 brk(0x555563117e00) = 0x555563117e00 brk(0x555563118000) = 0x555563118000 mprotect(0x7f4f3ee16000, 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=0x7f4f3ed62a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f4f3ed6b810}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f4f3ed62a50, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f4f3ed6b810}, 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 5214 attached [pid 5214] set_robust_list(0x5555630f6760, 24 [pid 5213] <... clone resumed>, child_tidptr=0x5555630f6750) = 5214 [pid 5214] <... set_robust_list resumed>) = 0 [pid 5214] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5214] setpgid(0, 0) = 0 [pid 5214] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5214] write(3, "1000", 4) = 4 [pid 5214] close(3executing program ) = 0 [pid 5214] write(1, "executing program\n", 18) = 18 [pid 5214] memfd_create("syzkaller", 0) = 3 [pid 5214] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f4f36800000 [pid 5214] 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 5214] munmap(0x7f4f36800000, 138412032) = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5214] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5214] close(3) = 0 [pid 5214] close(4) = 0 [pid 5214] mkdir("./file0", 0777) = 0 [ 58.072852][ T5214] loop0: detected capacity change from 0 to 32768 [ 58.107219][ T5214] XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791 [pid 5214] mount("/dev/loop0", "./file0", "xfs", MS_NODIRATIME|MS_RELATIME, "lazytime,uqnoenforce,swalloc,filestreams,grpquota,allocsize=09m,gquota,nomand,,nouuid") = 0 [pid 5214] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5214] chdir("./file0") = 0 [pid 5214] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5214] open("./bus", O_RDWR|O_CREAT|O_SYNC|O_NOATIME, 0320) = 4 [pid 5214] mmap(0x20001000, 40960, PROT_NONE, MAP_PRIVATE|MAP_FIXED, 4, 0) = 0x20001000 [pid 5214] openat(AT_FDCWD, "./bus", O_RDWR|O_CREAT|O_NONBLOCK|O_SYNC|O_NOATIME, 000) = 5 [pid 5214] openat(AT_FDCWD, "blkio.bfq.io_service_time_recursive", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 6 [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b40} --- [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b43} --- [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4a} --- [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4b} --- [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4d} --- [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b4e} --- [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b56} --- [pid 5214] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_ACCERR, si_addr=0x20003b57} --- [pid 5214] write(6, 0x20003b40, 4119) = -1 EFAULT (Bad address) [pid 5214] 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 [ 58.153719][ T5214] XFS (loop0): Ending clean mount [ 58.163354][ T5214] XFS (loop0): Quotacheck needed: Please wait. [ 58.188676][ T5214] XFS (loop0): Quotacheck: Done. [pid 5214] copy_file_range(6, [0], 5, NULL, 18446744072099193947, 0) = 3584 [ 58.245541][ T5214] ------------[ cut here ]------------ [ 58.251142][ T5214] WARNING: CPU: 1 PID: 5214 at fs/iomap/buffered-io.c:727 iomap_write_begin+0x13f0/0x16f0 [ 58.261624][ T5214] Modules linked in: [ 58.265643][ T5214] CPU: 1 UID: 0 PID: 5214 Comm: syz-executor607 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0 [ 58.276901][ T5214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 58.287315][ T5214] RIP: 0010:iomap_write_begin+0x13f0/0x16f0 [ 58.293338][ T5214] 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 [ 58.313282][ T5214] RSP: 0018:ffffc9000341f7c0 EFLAGS: 00010293 [ 58.319411][ T5214] RAX: ffffffff822a858f RBX: 0000000000000080 RCX: ffff8880271a1e00 [ 58.327462][ T5214] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 58.335567][ T5214] RBP: ffffc9000341fa50 R08: ffffffff822a8294 R09: 1ffff110280d9ba9 [ 58.343539][ T5214] R10: dffffc0000000000 R11: ffffed10280d9baa R12: ffffc9000341f9b0 [ 58.351751][ T5214] R13: ffffc9000341fbf0 R14: ffffc9000341f990 R15: 0000000000000800 [ 58.359785][ T5214] FS: 00005555630f6480(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 [ 58.369043][ T5214] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.375679][ T5214] CR2: 0000000020001000 CR3: 000000002563c000 CR4: 00000000003506f0 [ 58.383942][ T5214] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.392201][ T5214] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.400364][ T5214] Call Trace: [ 58.403980][ T5214] [ 58.406932][ T5214] ? __warn+0x163/0x4e0 [ 58.411339][ T5214] ? iomap_write_begin+0x13f0/0x16f0 [ 58.416907][ T5214] ? report_bug+0x2b3/0x500 [ 58.421559][ T5214] ? iomap_write_begin+0x13f0/0x16f0 [ 58.426947][ T5214] ? handle_bug+0x3e/0x70 [ 58.431307][ T5214] ? exc_invalid_op+0x1a/0x50 [ 58.436179][ T5214] ? asm_exc_invalid_op+0x1a/0x20 [ 58.441237][ T5214] ? iomap_write_begin+0x10f4/0x16f0 [ 58.446778][ T5214] ? iomap_write_begin+0x13ef/0x16f0 [ 58.452217][ T5214] ? iomap_write_begin+0x13f0/0x16f0 [ 58.457628][ T5214] ? __pfx_iomap_write_begin+0x10/0x10 [ 58.463247][ T5214] ? __pfx_xfs_buffered_write_delalloc_punch+0x10/0x10 [ 58.470337][ T5214] ? balance_dirty_pages_ratelimited_flags+0x137/0xd10 [ 58.477417][ T5214] ? __pfx_lock_release+0x10/0x10 [ 58.482536][ T5214] ? rcu_is_watching+0x15/0xb0 [ 58.487376][ T5214] ? iomap_iter+0x968/0xf60 [ 58.491988][ T5214] iomap_file_unshare+0x460/0x780 [ 58.497191][ T5214] ? __pfx_iomap_file_unshare+0x10/0x10 [ 58.502788][ T5214] ? __pfx_xfs_vn_update_time+0x10/0x10 [ 58.508515][ T5214] ? __pfx_inode_dio_wait+0x10/0x10 [ 58.513731][ T5214] ? xfs_break_layouts+0x23a/0x2e0 [ 58.518925][ T5214] xfs_reflink_unshare+0x173/0x5f0 [ 58.524187][ T5214] xfs_file_fallocate+0x6be/0xa50 [ 58.529236][ T5214] ? __pfx_lock_acquire+0x10/0x10 [ 58.534318][ T5214] ? __pfx_xfs_file_fallocate+0x10/0x10 [ 58.540056][ T5214] ? rcu_read_lock_any_held+0xb7/0x160 [ 58.545770][ T5214] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 58.551701][ T5214] vfs_fallocate+0x553/0x6c0 [ 58.556433][ T5214] __x64_sys_fallocate+0xbd/0x110 [ 58.562102][ T5214] do_syscall_64+0xf3/0x230 [ 58.566776][ T5214] ? clear_bhb_loop+0x35/0x90 [ 58.571560][ T5214] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.577620][ T5214] RIP: 0033:0x7f4f3ed98899 [ 58.582054][ T5214] 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 [ 58.602309][ T5214] RSP: 002b:00007ffcdf2e46d8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 58.610890][ T5214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4f3ed98899 [ 58.619100][ T5214] RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006 [ 58.627311][ T5214] RBP: 0000000000000000 R08: 0700000000000000 R09: 0700000000000000 [ 58.635579][ T5214] R10: 0000000000002000 R11: 0000000000000246 R12: 00007ffcdf2e4720 [ 58.643657][ T5214] R13: 00007ffcdf2e49a8 R14: 431bde82d7b634db R15: 00007f4f3ede103b [ 58.651826][ T5214] [ 58.654909][ T5214] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 58.662227][ T5214] CPU: 1 UID: 0 PID: 5214 Comm: syz-executor607 Not tainted 6.11.0-rc2-syzkaller-00111-gee9a43b7cfe2 #0 [ 58.673427][ T5214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 58.683828][ T5214] Call Trace: [ 58.687119][ T5214] [ 58.690134][ T5214] dump_stack_lvl+0x241/0x360 [ 58.695345][ T5214] ? __pfx_dump_stack_lvl+0x10/0x10 [ 58.700572][ T5214] ? __pfx__printk+0x10/0x10 [ 58.705346][ T5214] ? vscnprintf+0x5d/0x90 [ 58.709677][ T5214] panic+0x349/0x860 [ 58.713661][ T5214] ? __warn+0x172/0x4e0 [ 58.717839][ T5214] ? __pfx_panic+0x10/0x10 [ 58.722359][ T5214] __warn+0x346/0x4e0 [ 58.726335][ T5214] ? iomap_write_begin+0x13f0/0x16f0 [ 58.731616][ T5214] report_bug+0x2b3/0x500 [ 58.735936][ T5214] ? iomap_write_begin+0x13f0/0x16f0 [ 58.741219][ T5214] handle_bug+0x3e/0x70 [ 58.745366][ T5214] exc_invalid_op+0x1a/0x50 [ 58.749870][ T5214] asm_exc_invalid_op+0x1a/0x20 [ 58.754706][ T5214] RIP: 0010:iomap_write_begin+0x13f0/0x16f0 [ 58.760596][ T5214] 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 [ 58.780191][ T5214] RSP: 0018:ffffc9000341f7c0 EFLAGS: 00010293 [ 58.786250][ T5214] RAX: ffffffff822a858f RBX: 0000000000000080 RCX: ffff8880271a1e00 [ 58.794211][ T5214] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 [ 58.802195][ T5214] RBP: ffffc9000341fa50 R08: ffffffff822a8294 R09: 1ffff110280d9ba9 [ 58.810327][ T5214] R10: dffffc0000000000 R11: ffffed10280d9baa R12: ffffc9000341f9b0 [ 58.818304][ T5214] R13: ffffc9000341fbf0 R14: ffffc9000341f990 R15: 0000000000000800 [ 58.826289][ T5214] ? iomap_write_begin+0x10f4/0x16f0 [ 58.831690][ T5214] ? iomap_write_begin+0x13ef/0x16f0 [ 58.837104][ T5214] ? __pfx_iomap_write_begin+0x10/0x10 [ 58.842668][ T5214] ? __pfx_xfs_buffered_write_delalloc_punch+0x10/0x10 [ 58.849608][ T5214] ? balance_dirty_pages_ratelimited_flags+0x137/0xd10 [ 58.856538][ T5214] ? __pfx_lock_release+0x10/0x10 [ 58.861573][ T5214] ? rcu_is_watching+0x15/0xb0 [ 58.866428][ T5214] ? iomap_iter+0x968/0xf60 [ 58.871024][ T5214] iomap_file_unshare+0x460/0x780 [ 58.876062][ T5214] ? __pfx_iomap_file_unshare+0x10/0x10 [ 58.881708][ T5214] ? __pfx_xfs_vn_update_time+0x10/0x10 [ 58.887252][ T5214] ? __pfx_inode_dio_wait+0x10/0x10 [ 58.892449][ T5214] ? xfs_break_layouts+0x23a/0x2e0 [ 58.897655][ T5214] xfs_reflink_unshare+0x173/0x5f0 [ 58.902763][ T5214] xfs_file_fallocate+0x6be/0xa50 [ 58.907899][ T5214] ? __pfx_lock_acquire+0x10/0x10 [ 58.912949][ T5214] ? __pfx_xfs_file_fallocate+0x10/0x10 [ 58.918503][ T5214] ? rcu_read_lock_any_held+0xb7/0x160 [ 58.923964][ T5214] ? __pfx_rcu_read_lock_any_held+0x10/0x10 [ 58.929961][ T5214] vfs_fallocate+0x553/0x6c0 [ 58.934724][ T5214] __x64_sys_fallocate+0xbd/0x110 [ 58.939755][ T5214] do_syscall_64+0xf3/0x230 [ 58.944353][ T5214] ? clear_bhb_loop+0x35/0x90 [ 58.949121][ T5214] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 58.955188][ T5214] RIP: 0033:0x7f4f3ed98899 [ 58.959710][ T5214] 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 [ 58.981325][ T5214] RSP: 002b:00007ffcdf2e46d8 EFLAGS: 00000246 ORIG_RAX: 000000000000011d [ 58.989752][ T5214] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4f3ed98899 [ 58.997807][ T5214] RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006 [ 59.005773][ T5214] RBP: 0000000000000000 R08: 0700000000000000 R09: 0700000000000000 [ 59.013739][ T5214] R10: 0000000000002000 R11: 0000000000000246 R12: 00007ffcdf2e4720 [ 59.021874][ T5214] R13: 00007ffcdf2e49a8 R14: 431bde82d7b634db R15: 00007f4f3ede103b [ 59.029852][ T5214] [ 59.032991][ T5214] Kernel Offset: disabled [ 59.037463][ T5214] Rebooting in 86400 seconds..