./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3361417722
<...>
Warning: Permanently added '10.128.1.128' (ED25519) to the list of known hosts.
execve("./syz-executor3361417722", ["./syz-executor3361417722"], 0x7fff8811d120 /* 10 vars */) = 0
brk(NULL) = 0x555580818000
brk(0x555580818d00) = 0x555580818d00
arch_prctl(ARCH_SET_FS, 0x555580818380) = 0
set_tid_address(0x555580818650) = 5825
set_robust_list(0x555580818660, 24) = 0
rseq(0x555580818ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor3361417722", 4096) = 28
getrandom("\x54\xa6\xd8\x12\x20\x98\x14\x51", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555580818d00
brk(0x555580839d00) = 0x555580839d00
brk(0x55558083a000) = 0x55558083a000
mprotect(0x7f8b038c3000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
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 5826 attached
, child_tidptr=0x555580818650) = 5826
[pid 5826] set_robust_list(0x555580818660, 24) = 0
[pid 5826] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5826] setpgid(0, 0) = 0
[pid 5826] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5826] write(3, "1000", 4) = 4
[pid 5826] close(3) = 0
executing program
[pid 5826] write(1, "executing program\n", 18) = 18
[pid 5826] memfd_create("syzkaller", 0) = 3
[pid 5826] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8afb400000
[pid 5826] 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
[pid 5826] munmap(0x7f8afb400000, 138412032) = 0
[pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5826] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5826] close(3) = 0
[pid 5826] close(4) = 0
[pid 5826] mkdir("./file1", 0777) = 0
[ 87.288619][ T5826] loop0: detected capacity change from 0 to 32768
[ 87.399331][ T5826] bcachefs (da441363-bb6a-4ab9-999b-c1f40db4fee2): Using encoding defined by superblock: utf8-12.1.0
[ 87.426192][ T5826] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,journal_flush_disabled,fsck,recovery_pass_last=set_may_go_rw,reconstruct_alloc,no_data_io
[ 87.426192][ T5826] allowing incompatible features above 0.0: (unknown version)
[ 87.454491][ T5826] bcachefs (loop0): recovering from clean shutdown, journal seq 10
[ 87.462897][ T5826] bcachefs (loop0): Version upgrade required:
[ 87.462897][ T5826] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[ 87.462897][ T5826] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.25: extent_flags
[ 87.462897][ T5826] running recovery passes: check_allocations,check_alloc_info,check_lrus,check_btree_backpointers,check_backpointers_to_extents,check_extents_to_backpointers,check_alloc_to_lru_refs,bucket_gens_init,check_snapshot_trees,check_snapshots,check_subvols,check_subvol_children,delete_dead_snapshots,check_inodes,check_extents,check_indirect_extents,check_dirents,check_xattrs,check_root,check_unreachable_inodes,check_subvolume_structure,check_directory_structure,check_nlinks,set_fs_needs_rebalance
[ 87.534991][ T5826] bcachefs (loop0): dropping and reconstructing all alloc info
[ 87.551091][ T5826] bcachefs (loop0): accounting_read... done
[ 87.557971][ T5826] bcachefs (loop0): alloc_read... done
[ 87.563588][ T5826] bcachefs (loop0): snapshots_read... done
[ 87.569694][ T5826] bcachefs (loop0): check_allocations... done
[ 87.596161][ T5826] bcachefs (loop0): going read-write
[pid 5826] mount("/dev/loop0", "./file1", "bcachefs", MS_POSIXACL|MS_I_VERSION, "\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x74\x72\x61\x6e\x73\x61\x63\x74\x69\x6f\x6e\x5f\x6e\x61\x6d\x65\x73\x2c\x62\x74\x72\x65\x65\x5f\x6e\x6f\x64\x65\x5f\x0d\xcb\xcc\x28\xb5\xef\x6f\x8b\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x66\x6c\x75\x73\x68\x5f\x64\x69\x73\x61\x62\x6c\x65\x64\x2c\x66\x73\x63\x6b\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x66\x6c\x75\x73\x68\x5f\x64\x69\x73\x61\x62\x6c\x65\x64\x2c\x72\x61\x74"...) = 0
[pid 5826] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5826] chdir("./file1") = 0
[ 87.601758][ T5826] bcachefs (loop0): insufficient writeable journal devices available: have 0, need 1
[ 87.601758][ T5826] rw journal devs:
[ 87.625797][ T5826] bcachefs (loop0): done starting filesystem
[pid 5826] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5826] ioctl(4, LOOP_CLR_FD) = 0
[pid 5826] close(4) = 0
[pid 5826] creat("./file1", 050) = -1 EROFS (Read-only file system)
[pid 5826] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 4
[ 87.743954][ T5826] ------------[ cut here ]------------
[ 87.749582][ T5826] WARNING: CPU: 1 PID: 5826 at fs/bcachefs/fs-io.c:359 __bch2_truncate_folio+0x173a/0x19d0
[ 87.759699][ T5826] Modules linked in:
[ 87.763741][ T5826] CPU: 1 UID: 0 PID: 5826 Comm: syz-executor336 Not tainted 6.15.0-rc7-syzkaller #0 PREEMPT(full)
[ 87.774800][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 87.785213][ T5826] RIP: 0010:__bch2_truncate_folio+0x173a/0x19d0
[ 87.791504][ T5826] Code: 5f 5d e9 89 7c 20 07 cc e8 03 26 8e fd 48 c7 c7 90 a9 7b 8d e8 47 27 ea ff 89 05 d1 40 66 15 e9 ab ea ff ff e8 e7 25 8e fd 90 <0f> 0b 90 e9 88 f9 ff ff e8 59 ab 1d 07 e8 d4 25 8e fd be 00 10 00
[ 87.811303][ T5826] RSP: 0018:ffffc9000425f4c0 EFLAGS: 00010293
[ 87.817430][ T5826] RAX: ffffffff8431caf9 RBX: 0000000000000000 RCX: ffff88807c929e00
[ 87.825457][ T5826] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 87.833491][ T5826] RBP: ffffc9000425f690 R08: ffffea00009d99c7 R09: 1ffffd400013b338
[ 87.841467][ T5826] R10: dffffc0000000000 R11: fffff9400013b339 R12: 1ffff1100ee6f0fd
[ 87.849483][ T5826] R13: dffffc0000000000 R14: ffff8880773787e8 R15: 0000000000000000
[ 87.857508][ T5826] FS: 0000555580818380(0000) GS:ffff8881261f6000(0000) knlGS:0000000000000000
[ 87.866546][ T5826] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 87.873187][ T5826] CR2: 00007f8b038c70f8 CR3: 000000007acba000 CR4: 00000000003526f0
[ 87.881166][ T5826] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 87.889220][ T5826] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 87.897231][ T5826] Call Trace:
[ 87.900505][ T5826]
[ 87.903561][ T5826] ? __pfx___bch2_truncate_folio+0x10/0x10
[ 87.909403][ T5826] ? __bch2_truncate_folio+0x2b1/0x19d0
[ 87.914983][ T5826] ? do_raw_spin_lock+0x121/0x290
[ 87.920061][ T5826] bchfs_fpunch+0x10f/0x520
[ 87.924674][ T5826] ? __pfx_bchfs_fpunch+0x10/0x10
[ 87.929727][ T5826] ? _raw_spin_unlock_irq+0x29/0x50
[ 87.935029][ T5826] ? mnt_put_write_access_file+0xc0/0x100
[ 87.940810][ T5826] bch2_fallocate_dispatch+0x379/0x4e0
[ 87.946380][ T5826] ? __pfx_bch2_fallocate_dispatch+0x10/0x10
[ 87.952395][ T5826] vfs_fallocate+0x6a0/0x830
[ 87.957049][ T5826] ? __pfx_vfs_fallocate+0x10/0x10
[ 87.962213][ T5826] do_vfs_ioctl+0x1b8f/0x1eb0
[ 87.966958][ T5826] ? __se_sys_ioctl+0x47/0x170
[ 87.971765][ T5826] ? do_syscall_64+0xf6/0x210
[ 87.976527][ T5826] ? __pfx_do_vfs_ioctl+0x10/0x10
[ 87.981631][ T5826] ? kasan_quarantine_put+0xdd/0x220
[ 87.987006][ T5826] ? tomoyo_path_number_perm+0x1bc/0x5a0
[ 87.992711][ T5826] ? tomoyo_path_number_perm+0x1bc/0x5a0
[ 87.998351][ T5826] ? tomoyo_path_number_perm+0x4e2/0x5a0
[ 88.004151][ T5826] ? tomoyo_path_number_perm+0x1bc/0x5a0
[ 88.009806][ T5826] ? __pfx_tomoyo_path_number_perm+0x10/0x10
[ 88.015836][ T5826] ? smack_log+0xef/0x3f0
[ 88.020202][ T5826] ? __pfx_smack_log+0x10/0x10
[ 88.025064][ T5826] ? __pfx__raw_spin_lock_irq+0x10/0x10
[ 88.030632][ T5826] ? smk_access+0x14c/0x4e0
[ 88.035208][ T5826] ? smk_tskacc+0x2fc/0x370
[ 88.039760][ T5826] ? smack_file_ioctl+0x24a/0x340
[ 88.044863][ T5826] ? __pfx_smack_file_ioctl+0x10/0x10
[ 88.050282][ T5826] ? bpf_lsm_file_ioctl+0x9/0x20
[ 88.055306][ T5826] __se_sys_ioctl+0x82/0x170
[ 88.059925][ T5826] do_syscall_64+0xf6/0x210
[ 88.064505][ T5826] ? clear_bhb_loop+0x60/0xb0
[ 88.069221][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 88.075197][ T5826] RIP: 0033:0x7f8b0384ab59
[ 88.079669][ T5826] 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
[ 88.099352][ T5826] RSP: 002b:00007ffcc0bbdf38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 88.107838][ T5826] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f8b0384ab59
[ 88.115874][ T5826] RDX: 00002000000000c0 RSI: 0000000040305829 RDI: 0000000000000004
[ 88.123891][ T5826] RBP: 00007f8b038c35f0 R08: 00005555808194c0 R09: 00005555808194c0
[ 88.131860][ T5826] R10: 00005555808194c0 R11: 0000000000000246 R12: 00007ffcc0bbdf60
[ 88.139955][ T5826] R13: 00007ffcc0bbe188 R14: 431bde82d7b634db R15: 00007f8b0389303b
[ 88.148052][ T5826]
[ 88.151068][ T5826] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 88.158344][ T5826] CPU: 1 UID: 0 PID: 5826 Comm: syz-executor336 Not tainted 6.15.0-rc7-syzkaller #0 PREEMPT(full)
[ 88.169006][ T5826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
[ 88.179066][ T5826] Call Trace:
[ 88.182334][ T5826]
[ 88.185259][ T5826] dump_stack_lvl+0x99/0x250
[ 88.189844][ T5826] ? __asan_memcpy+0x40/0x70
[ 88.194435][ T5826] ? __pfx_dump_stack_lvl+0x10/0x10
[ 88.199646][ T5826] ? __pfx__printk+0x10/0x10
[ 88.204272][ T5826] panic+0x2db/0x790
[ 88.208184][ T5826] ? __pfx_panic+0x10/0x10
[ 88.212603][ T5826] ? show_trace_log_lvl+0x4fb/0x550
[ 88.217821][ T5826] __warn+0x31b/0x4b0
[ 88.221820][ T5826] ? __bch2_truncate_folio+0x173a/0x19d0
[ 88.227548][ T5826] ? __bch2_truncate_folio+0x173a/0x19d0
[ 88.233198][ T5826] report_bug+0x2be/0x4f0
[ 88.237535][ T5826] ? __bch2_truncate_folio+0x173a/0x19d0
[ 88.243265][ T5826] ? __bch2_truncate_folio+0x173a/0x19d0
[ 88.248903][ T5826] ? __bch2_truncate_folio+0x173c/0x19d0
[ 88.254627][ T5826] handle_bug+0x84/0x160
[ 88.258880][ T5826] exc_invalid_op+0x1a/0x50
[ 88.263393][ T5826] asm_exc_invalid_op+0x1a/0x20
[ 88.268258][ T5826] RIP: 0010:__bch2_truncate_folio+0x173a/0x19d0
[ 88.274502][ T5826] Code: 5f 5d e9 89 7c 20 07 cc e8 03 26 8e fd 48 c7 c7 90 a9 7b 8d e8 47 27 ea ff 89 05 d1 40 66 15 e9 ab ea ff ff e8 e7 25 8e fd 90 <0f> 0b 90 e9 88 f9 ff ff e8 59 ab 1d 07 e8 d4 25 8e fd be 00 10 00
[ 88.294108][ T5826] RSP: 0018:ffffc9000425f4c0 EFLAGS: 00010293
[ 88.300183][ T5826] RAX: ffffffff8431caf9 RBX: 0000000000000000 RCX: ffff88807c929e00
[ 88.308167][ T5826] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
[ 88.316223][ T5826] RBP: ffffc9000425f690 R08: ffffea00009d99c7 R09: 1ffffd400013b338
[ 88.324201][ T5826] R10: dffffc0000000000 R11: fffff9400013b339 R12: 1ffff1100ee6f0fd
[ 88.332173][ T5826] R13: dffffc0000000000 R14: ffff8880773787e8 R15: 0000000000000000
[ 88.340151][ T5826] ? __bch2_truncate_folio+0x1739/0x19d0
[ 88.345811][ T5826] ? __pfx___bch2_truncate_folio+0x10/0x10
[ 88.351627][ T5826] ? __bch2_truncate_folio+0x2b1/0x19d0
[ 88.357166][ T5826] ? do_raw_spin_lock+0x121/0x290
[ 88.362197][ T5826] bchfs_fpunch+0x10f/0x520
[ 88.366702][ T5826] ? __pfx_bchfs_fpunch+0x10/0x10
[ 88.371747][ T5826] ? _raw_spin_unlock_irq+0x29/0x50
[ 88.376939][ T5826] ? mnt_put_write_access_file+0xc0/0x100
[ 88.382664][ T5826] bch2_fallocate_dispatch+0x379/0x4e0
[ 88.388120][ T5826] ? __pfx_bch2_fallocate_dispatch+0x10/0x10
[ 88.394116][ T5826] vfs_fallocate+0x6a0/0x830
[ 88.398732][ T5826] ? __pfx_vfs_fallocate+0x10/0x10
[ 88.403891][ T5826] do_vfs_ioctl+0x1b8f/0x1eb0
[ 88.408583][ T5826] ? __se_sys_ioctl+0x47/0x170
[ 88.413352][ T5826] ? do_syscall_64+0xf6/0x210
[ 88.418040][ T5826] ? __pfx_do_vfs_ioctl+0x10/0x10
[ 88.423121][ T5826] ? kasan_quarantine_put+0xdd/0x220
[ 88.428417][ T5826] ? tomoyo_path_number_perm+0x1bc/0x5a0
[ 88.434061][ T5826] ? tomoyo_path_number_perm+0x1bc/0x5a0
[ 88.439699][ T5826] ? tomoyo_path_number_perm+0x4e2/0x5a0
[ 88.445329][ T5826] ? tomoyo_path_number_perm+0x1bc/0x5a0
[ 88.450961][ T5826] ? __pfx_tomoyo_path_number_perm+0x10/0x10
[ 88.456936][ T5826] ? smack_log+0xef/0x3f0
[ 88.461270][ T5826] ? __pfx_smack_log+0x10/0x10
[ 88.466044][ T5826] ? __pfx__raw_spin_lock_irq+0x10/0x10
[ 88.471588][ T5826] ? smk_access+0x14c/0x4e0
[ 88.476121][ T5826] ? smk_tskacc+0x2fc/0x370
[ 88.480644][ T5826] ? smack_file_ioctl+0x24a/0x340
[ 88.485678][ T5826] ? __pfx_smack_file_ioctl+0x10/0x10
[ 88.491072][ T5826] ? bpf_lsm_file_ioctl+0x9/0x20
[ 88.496024][ T5826] __se_sys_ioctl+0x82/0x170
[ 88.500649][ T5826] do_syscall_64+0xf6/0x210
[ 88.505169][ T5826] ? clear_bhb_loop+0x60/0xb0
[ 88.509863][ T5826] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 88.515766][ T5826] RIP: 0033:0x7f8b0384ab59
[ 88.520210][ T5826] 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
[ 88.539828][ T5826] RSP: 002b:00007ffcc0bbdf38 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 88.548251][ T5826] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f8b0384ab59
[ 88.556228][ T5826] RDX: 00002000000000c0 RSI: 0000000040305829 RDI: 0000000000000004
[ 88.564204][ T5826] RBP: 00007f8b038c35f0 R08: 00005555808194c0 R09: 00005555808194c0
[ 88.572172][ T5826] R10: 00005555808194c0 R11: 0000000000000246 R12: 00007ffcc0bbdf60
[ 88.580135][ T5826] R13: 00007ffcc0bbe188 R14: 431bde82d7b634db R15: 00007f8b0389303b
[ 88.588110][ T5826]
[ 88.591472][ T5826] Kernel Offset: disabled
[ 88.595805][ T5826] Rebooting in 86400 seconds..