./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor16950079
<...>
Warning: Permanently added '10.128.0.34' (ED25519) to the list of known hosts.
execve("./syz-executor16950079", ["./syz-executor16950079"], 0x7ffeb5e044b0 /* 10 vars */) = 0
brk(NULL) = 0x555556118000
brk(0x555556118d00) = 0x555556118d00
arch_prctl(ARCH_SET_FS, 0x555556118380) = 0
set_tid_address(0x555556118650) = 5831
set_robust_list(0x555556118660, 24) = 0
rseq(0x555556118ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor16950079", 4096) = 26
getrandom("\x90\x0a\x61\x91\x38\x42\x80\x26", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x555556118d00
brk(0x555556139d00) = 0x555556139d00
brk(0x55555613a000) = 0x55555613a000
mprotect(0x7f504c312000, 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, 0executing program
) = 0x200001000000
write(1, "executing program\n", 18) = 18
memfd_create("syzkaller", 0) = 3
mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5043e00000
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
munmap(0x7f5043e00000, 138412032) = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_SET_FD, 3) = 0
close(3) = 0
close(4) = 0
mkdir("./file1", 0777) = 0
[ 87.329353][ T5831] loop0: detected capacity change from 0 to 32768
[ 87.397987][ T5831] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=xxhash,compression=lz4,journal_flush_disabled,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc
[ 87.418889][ T5831] bcachefs (loop0): recovering from clean shutdown, journal seq 10
[ 87.427161][ T5831] bcachefs (loop0): Version upgrade required:
[ 87.427161][ T5831] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[ 87.427161][ T5831] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.25: extent_flags
[ 87.427161][ T5831] 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
mount("/dev/loop0", "./file1", "bcachefs", MS_I_VERSION, "data_checksum=xxhash,direct_io,norecovery,fsck,journal_flush_disabled,norecovery,btree_node_imizatio"...) = 0
openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
chdir("./file1") = 0
openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
ioctl(4, LOOP_CLR_FD) = 0
close(4) = 0
[ 87.497920][ T5831] bcachefs (loop0): dropping and reconstructing all alloc info
[ 87.518349][ T5831] bcachefs (loop0): accounting_read... done
[ 87.525033][ T5831] bcachefs (loop0): alloc_read... done
[ 87.531102][ T5831] bcachefs (loop0): snapshots_read... done
[ 87.538099][ T5831] bcachefs (loop0): done starting filesystem
[ 87.605276][ T5831] ------------[ cut here ]------------
[ 87.610910][ T5831] WARNING: CPU: 1 PID: 5831 at block/bio.c:512 bio_alloc_bioset+0xd61/0x1130
[ 87.619776][ T5831] Modules linked in:
[ 87.623801][ T5831] CPU: 1 UID: 0 PID: 5831 Comm: syz-executor169 Not tainted 6.15.0-rc1-next-20250408-syzkaller #0 PREEMPT(full)
[ 87.635772][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 87.645890][ T5831] RIP: 0010:bio_alloc_bioset+0xd61/0x1130
[ 87.651648][ T5831] Code: db f6 ff 81 ce 00 20 09 00 e8 db dd 3f fd 48 85 c0 0f 84 a1 00 00 00 48 89 c5 e8 0a 55 e1 fc e9 7a f8 ff ff e8 00 55 e1 fc 90 <0f> 0b 90 e9 7b fb ff ff e8 f2 54 e1 fc 90 0f 0b 90 44 8b 7c 24 20
[ 87.671354][ T5831] RSP: 0018:ffffc90003f5f050 EFLAGS: 00010293
[ 87.677484][ T5831] RAX: ffffffff84e1f000 RBX: 0000000000000000 RCX: ffff888021b29e00
[ 87.685510][ T5831] RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000000
[ 87.693510][ T5831] RBP: dffffc0000000000 R08: ffffffff84e1e304 R09: 1ffffd4000143e38
[ 87.701523][ T5831] R10: dffffc0000000000 R11: fffff94000143e39 R12: 0000000000000100
[ 87.709556][ T5831] R13: 0000000000000cc0 R14: 0000000000000001 R15: 0000000000000100
[ 87.717604][ T5831] FS: 0000555556118380(0000) GS:ffff888125089000(0000) knlGS:0000000000000000
[ 87.726611][ T5831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 87.733244][ T5831] CR2: 00007ffdad858000 CR3: 000000007ed30000 CR4: 00000000003526f0
[ 87.741269][ T5831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 87.749671][ T5831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 87.757713][ T5831] Call Trace:
[ 87.761014][ T5831]
[ 87.763956][ T5831] ? folio_unlock+0x10e/0x170
[ 87.768714][ T5831] __bch2_writepage+0x1624/0x2780
[ 87.773814][ T5831] ? folio_clear_dirty_for_io+0x25c/0x9b0
[ 87.779607][ T5831] ? __pfx___bch2_writepage+0x10/0x10
[ 87.785016][ T5831] ? writeback_iter+0xcfd/0x12b0
[ 87.790020][ T5831] write_cache_pages+0xd2/0x240
[ 87.794911][ T5831] ? __pfx___bch2_writepage+0x10/0x10
[ 87.800354][ T5831] ? __pfx_write_cache_pages+0x10/0x10
[ 87.805866][ T5831] ? blk_start_plug+0x70/0x1b0
[ 87.810663][ T5831] bch2_writepages+0x158/0x390
[ 87.815504][ T5831] ? find_get_entries+0x1bb/0x900
[ 87.820566][ T5831] ? __pfx_bch2_writepages+0x10/0x10
[ 87.825925][ T5831] ? __pfx_find_get_entries+0x10/0x10
[ 87.831360][ T5831] ? __pfx_bch2_writepages+0x10/0x10
[ 87.836719][ T5831] do_writepages+0x38c/0x640
[ 87.841331][ T5831] ? __lock_acquire+0xad5/0xd80
[ 87.846252][ T5831] ? __pfx_do_writepages+0x10/0x10
[ 87.851475][ T5831] ? do_raw_spin_lock+0x151/0x370
[ 87.856601][ T5831] ? do_raw_spin_unlock+0x13c/0x8b0
[ 87.861844][ T5831] filemap_write_and_wait_range+0x2ac/0x3d0
[ 87.867798][ T5831] ? __pfx_filemap_write_and_wait_range+0x10/0x10
[ 87.874245][ T5831] ? __up_read+0x2c4/0x6b0
[ 87.878767][ T5831] ? __bch2_inode_peek+0x1ff/0x5c0
[ 87.883927][ T5831] ? truncate_setsize+0xcf/0xf0
[ 87.888857][ T5831] bchfs_truncate+0x77c/0xc60
[ 87.893586][ T5831] ? bch2_trans_put+0xa7f/0x1060
[ 87.898590][ T5831] ? __pfx_bchfs_truncate+0x10/0x10
[ 87.903835][ T5831] ? setattr_prepare+0x1f5/0xb20
[ 87.908866][ T5831] ? bch2_setattr+0x1a4/0x220
[ 87.913570][ T5831] ? __pfx_bch2_setattr+0x10/0x10
[ 87.918645][ T5831] notify_change+0xbca/0xe90
[ 87.923277][ T5831] do_truncate+0x222/0x310
[ 87.927776][ T5831] ? __pfx_do_truncate+0x10/0x10
[ 87.932759][ T5831] ? mnt_get_write_access+0x226/0x2b0
[ 87.938207][ T5831] ? bpf_lsm_path_truncate+0x9/0x10
[ 87.943447][ T5831] vfs_truncate+0x4a6/0x540
[ 87.948019][ T5831] ? __pfx_vfs_truncate+0x10/0x10
[ 87.953080][ T5831] ? kmem_cache_free+0x197/0x410
[ 87.958210][ T5831] ? user_path_at+0x44/0x60
[ 87.962766][ T5831] do_sys_truncate+0xd8/0x190
[ 87.967505][ T5831] ? __pfx_do_sys_truncate+0x10/0x10
[ 87.972830][ T5831] __x64_sys_truncate+0x5b/0x70
[ 87.977763][ T5831] do_syscall_64+0xf3/0x230
[ 87.982308][ T5831] ? clear_bhb_loop+0x45/0xa0
[ 87.987025][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 87.992978][ T5831] RIP: 0033:0x7f504c2996b9
[ 87.997455][ T5831] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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
[ 88.017101][ T5831] RSP: 002b:00007ffdad857aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
[ 88.025558][ T5831] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f504c2996b9
[ 88.033559][ T5831] RDX: 00007f504c2989b0 RSI: 0000000000000002 RDI: 0000200000000800
[ 88.041678][ T5831] RBP: 0000200000000000 R08: 00000000000058fd R09: 0000000000000000
[ 88.049769][ T5831] R10: 00007ffdad857970 R11: 0000000000000246 R12: 0000000000000001
[ 88.057889][ T5831] R13: 00007ffdad857c88 R14: 0000000000000001 R15: 0000000000000001
[ 88.065934][ T5831]
[ 88.068985][ T5831] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 88.076291][ T5831] CPU: 1 UID: 0 PID: 5831 Comm: syz-executor169 Not tainted 6.15.0-rc1-next-20250408-syzkaller #0 PREEMPT(full)
[ 88.088193][ T5831] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 88.098275][ T5831] Call Trace:
[ 88.101568][ T5831]
[ 88.104521][ T5831] dump_stack_lvl+0x241/0x360
[ 88.109222][ T5831] ? __pfx_dump_stack_lvl+0x10/0x10
[ 88.114436][ T5831] ? __pfx__printk+0x10/0x10
[ 88.119044][ T5831] ? vscnprintf+0x5d/0x90
[ 88.123394][ T5831] panic+0x349/0x880
[ 88.127313][ T5831] ? __warn+0x174/0x4d0
[ 88.131487][ T5831] ? __pfx_panic+0x10/0x10
[ 88.135932][ T5831] __warn+0x344/0x4d0
[ 88.139923][ T5831] ? bio_alloc_bioset+0xd61/0x1130
[ 88.145055][ T5831] report_bug+0x2b3/0x500
[ 88.149409][ T5831] ? bio_alloc_bioset+0xd61/0x1130
[ 88.154530][ T5831] ? bio_alloc_bioset+0xd61/0x1130
[ 88.159649][ T5831] ? bio_alloc_bioset+0xd63/0x1130
[ 88.164768][ T5831] handle_bug+0x89/0x170
[ 88.169029][ T5831] exc_invalid_op+0x1a/0x50
[ 88.173546][ T5831] asm_exc_invalid_op+0x1a/0x20
[ 88.178414][ T5831] RIP: 0010:bio_alloc_bioset+0xd61/0x1130
[ 88.184145][ T5831] Code: db f6 ff 81 ce 00 20 09 00 e8 db dd 3f fd 48 85 c0 0f 84 a1 00 00 00 48 89 c5 e8 0a 55 e1 fc e9 7a f8 ff ff e8 00 55 e1 fc 90 <0f> 0b 90 e9 7b fb ff ff e8 f2 54 e1 fc 90 0f 0b 90 44 8b 7c 24 20
[ 88.203777][ T5831] RSP: 0018:ffffc90003f5f050 EFLAGS: 00010293
[ 88.209863][ T5831] RAX: ffffffff84e1f000 RBX: 0000000000000000 RCX: ffff888021b29e00
[ 88.217843][ T5831] RDX: 0000000000000000 RSI: 0000000000000100 RDI: 0000000000000000
[ 88.225823][ T5831] RBP: dffffc0000000000 R08: ffffffff84e1e304 R09: 1ffffd4000143e38
[ 88.233809][ T5831] R10: dffffc0000000000 R11: fffff94000143e39 R12: 0000000000000100
[ 88.241795][ T5831] R13: 0000000000000cc0 R14: 0000000000000001 R15: 0000000000000100
[ 88.249783][ T5831] ? bio_alloc_bioset+0x64/0x1130
[ 88.254820][ T5831] ? bio_alloc_bioset+0xd60/0x1130
[ 88.259950][ T5831] ? folio_unlock+0x10e/0x170
[ 88.264645][ T5831] __bch2_writepage+0x1624/0x2780
[ 88.269721][ T5831] ? folio_clear_dirty_for_io+0x25c/0x9b0
[ 88.275483][ T5831] ? __pfx___bch2_writepage+0x10/0x10
[ 88.280876][ T5831] ? writeback_iter+0xcfd/0x12b0
[ 88.285836][ T5831] write_cache_pages+0xd2/0x240
[ 88.290700][ T5831] ? __pfx___bch2_writepage+0x10/0x10
[ 88.296137][ T5831] ? __pfx_write_cache_pages+0x10/0x10
[ 88.301634][ T5831] ? blk_start_plug+0x70/0x1b0
[ 88.306414][ T5831] bch2_writepages+0x158/0x390
[ 88.311187][ T5831] ? find_get_entries+0x1bb/0x900
[ 88.316221][ T5831] ? __pfx_bch2_writepages+0x10/0x10
[ 88.321519][ T5831] ? __pfx_find_get_entries+0x10/0x10
[ 88.326929][ T5831] ? __pfx_bch2_writepages+0x10/0x10
[ 88.332225][ T5831] do_writepages+0x38c/0x640
[ 88.336821][ T5831] ? __lock_acquire+0xad5/0xd80
[ 88.341693][ T5831] ? __pfx_do_writepages+0x10/0x10
[ 88.346819][ T5831] ? do_raw_spin_lock+0x151/0x370
[ 88.351860][ T5831] ? do_raw_spin_unlock+0x13c/0x8b0
[ 88.357074][ T5831] filemap_write_and_wait_range+0x2ac/0x3d0
[ 88.362993][ T5831] ? __pfx_filemap_write_and_wait_range+0x10/0x10
[ 88.369436][ T5831] ? __up_read+0x2c4/0x6b0
[ 88.373905][ T5831] ? __bch2_inode_peek+0x1ff/0x5c0
[ 88.379031][ T5831] ? truncate_setsize+0xcf/0xf0
[ 88.383893][ T5831] bchfs_truncate+0x77c/0xc60
[ 88.388586][ T5831] ? bch2_trans_put+0xa7f/0x1060
[ 88.393540][ T5831] ? __pfx_bchfs_truncate+0x10/0x10
[ 88.398776][ T5831] ? setattr_prepare+0x1f5/0xb20
[ 88.403735][ T5831] ? bch2_setattr+0x1a4/0x220
[ 88.408422][ T5831] ? __pfx_bch2_setattr+0x10/0x10
[ 88.413464][ T5831] notify_change+0xbca/0xe90
[ 88.418077][ T5831] do_truncate+0x222/0x310
[ 88.422510][ T5831] ? __pfx_do_truncate+0x10/0x10
[ 88.427469][ T5831] ? mnt_get_write_access+0x226/0x2b0
[ 88.432863][ T5831] ? bpf_lsm_path_truncate+0x9/0x10
[ 88.438070][ T5831] vfs_truncate+0x4a6/0x540
[ 88.442591][ T5831] ? __pfx_vfs_truncate+0x10/0x10
[ 88.447624][ T5831] ? kmem_cache_free+0x197/0x410
[ 88.452568][ T5831] ? user_path_at+0x44/0x60
[ 88.457090][ T5831] do_sys_truncate+0xd8/0x190
[ 88.461780][ T5831] ? __pfx_do_sys_truncate+0x10/0x10
[ 88.467100][ T5831] __x64_sys_truncate+0x5b/0x70
[ 88.472010][ T5831] do_syscall_64+0xf3/0x230
[ 88.476524][ T5831] ? clear_bhb_loop+0x45/0xa0
[ 88.481213][ T5831] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 88.487116][ T5831] RIP: 0033:0x7f504c2996b9
[ 88.491542][ T5831] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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
[ 88.511157][ T5831] RSP: 002b:00007ffdad857aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c
[ 88.519580][ T5831] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f504c2996b9
[ 88.527550][ T5831] RDX: 00007f504c2989b0 RSI: 0000000000000002 RDI: 0000200000000800
[ 88.535527][ T5831] RBP: 0000200000000000 R08: 00000000000058fd R09: 0000000000000000
[ 88.543499][ T5831] R10: 00007ffdad857970 R11: 0000000000000246 R12: 0000000000000001
[ 88.551490][ T5831] R13: 00007ffdad857c88 R14: 0000000000000001 R15: 0000000000000001
[ 88.559481][ T5831]
[ 88.562894][ T5831] Kernel Offset: disabled
[ 88.567261][ T5831] Rebooting in 86400 seconds..