./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2578348077
<...>
Warning: Permanently added '10.128.0.160' (ED25519) to the list of known hosts.
execve("./syz-executor2578348077", ["./syz-executor2578348077"], 0x7fff32107910 /* 10 vars */) = 0
brk(NULL) = 0x5555839c8000
brk(0x5555839c8d00) = 0x5555839c8d00
arch_prctl(ARCH_SET_FS, 0x5555839c8380) = 0
set_tid_address(0x5555839c8650) = 5776
set_robust_list(0x5555839c8660, 24) = 0
rseq(0x5555839c8ca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor2578348077", 4096) = 28
getrandom("\x36\x09\x48\x13\xa6\x1d\x9b\xfd", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x5555839c8d00
brk(0x5555839e9d00) = 0x5555839e9d00
brk(0x5555839ea000) = 0x5555839ea000
mprotect(0x7fa6cc1ff000, 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, child_tidptr=0x5555839c8650) = 5777
./strace-static-x86_64: Process 5777 attached
[pid 5777] set_robust_list(0x5555839c8660, 24) = 0
[pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0
[pid 5777] setpgid(0, 0) = 0
[pid 5777] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3
[pid 5777] write(3, "1000", 4) = 4
executing program
[pid 5777] close(3) = 0
[pid 5777] write(1, "executing program\n", 18) = 18
[pid 5777] prlimit64(0, RLIMIT_RTPRIO, {rlim_cur=511, rlim_max=140737505132683}, NULL) = 0
[pid 5777] sched_setscheduler(0, SCHED_RR, [3]) = 0
[pid 5777] memfd_create("syzkaller", 0) = 3
[pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa6c3c00000
[pid 5777] 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 5777] munmap(0x7fa6c3c00000, 138412032) = 0
[pid 5777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5777] ioctl(4, LOOP_SET_FD, 3) = 0
[pid 5777] close(3) = 0
[pid 5777] close(4) = 0
[pid 5777] mkdir("./file1", 0777) = 0
[ 201.203573][ T5777] loop0: detected capacity change from 0 to 32768
[ 201.351879][ T5777] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=lz4,journal_flush_disabled,fsck,norecovery,nojournal_transaction_names,reconstruct_alloc,no_data_io
[ 201.374285][ T5777] bcachefs (loop0): recovering from clean shutdown, journal seq 10
[ 201.383904][ T5777] bcachefs (loop0): Version upgrade required:
[ 201.383904][ T5777] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete
[ 201.383904][ T5777] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.20: directory_size
[ 201.383904][ T5777] 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
[ 201.456071][ T5777] bcachefs (loop0): dropping and reconstructing all alloc info
[pid 5777] mount("/dev/loop0", "./file1", "bcachefs", MS_SYNCHRONOUS|MS_I_VERSION, "acl,direct_io,norecovery,fsck,journal_flush_disabled,noreTovery,btree_node_mem_ptr_optimization,reco"...) = 0
[pid 5777] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3
[pid 5777] chdir("./file1") = 0
[pid 5777] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4
[pid 5777] ioctl(4, LOOP_CLR_FD) = 0
[pid 5777] close(4) = 0
[ 201.502659][ T5777] bcachefs (loop0): accounting_read... done
[ 201.509357][ T5777] bcachefs (loop0): alloc_read... done
[ 201.515393][ T5777] bcachefs (loop0): stripes_read... done
[ 201.521536][ T5777] bcachefs (loop0): snapshots_read... done
[ 201.529859][ T5777] bcachefs (loop0): done starting filesystem
[ 201.570563][ T4034] =====================================================
[ 201.577807][ T4034] BUG: KMSAN: uninit-value in LZ4_decompress_safe_partial+0x825/0x1e50
[ 201.586773][ T4034] LZ4_decompress_safe_partial+0x825/0x1e50
[ 201.593142][ T4034] __bio_uncompress+0x641/0xd40
[ 201.598239][ T4034] bch2_bio_uncompress+0x4d9/0x800
[ 201.603745][ T4034] __bch2_read_endio+0x16b2/0x25a0
[ 201.609103][ T4034] process_scheduled_works+0xc1a/0x1e80
[ 201.615054][ T4034] worker_thread+0xea7/0x14f0
[ 201.620026][ T4034] kthread+0x6b9/0xef0
[ 201.624308][ T4034] ret_from_fork+0x6d/0x90
[ 201.628940][ T4034] ret_from_fork_asm+0x1a/0x30
[ 201.634038][ T4034]
[ 201.636479][ T4034] Uninit was created at:
[ 201.641395][ T4034] __alloc_frozen_pages_noprof+0x9a7/0xe00
[ 201.647435][ T4034] alloc_pages_mpol+0x4cd/0x890
[ 201.652575][ T4034] alloc_pages_noprof+0x1b5/0x250
[ 201.657823][ T4034] bch2_bio_alloc_pages_pool+0xc2/0x2d0
[ 201.663753][ T4034] __bch2_read_extent+0x3539/0x6b50
[ 201.669167][ T4034] bchfs_read+0x3af5/0x4240
[ 201.673917][ T4034] bch2_readahead+0x14cc/0x19a0
[ 201.678965][ T4034] read_pages+0x178/0xe00
[ 201.683603][ T4034] page_cache_ra_order+0xe53/0x1370
[ 201.689027][ T4034] page_cache_sync_ra+0xed1/0x11a0
[ 201.694397][ T4034] filemap_get_pages+0x6ed/0x3a90
[ 201.699663][ T4034] filemap_read+0x615/0x1be0
[ 201.704710][ T4034] bch2_read_iter+0x1ac4/0x2050
[ 201.709844][ T4034] __kernel_read+0x729/0xd40
[ 201.714631][ T4034] integrity_kernel_read+0x77/0x90
[ 201.720007][ T4034] ima_calc_file_hash+0x1731/0x3c90
[ 201.725427][ T4034] ima_collect_measurement+0x46d/0xe60
[ 201.731242][ T4034] process_measurement+0x2948/0x3f30
[ 201.736728][ T4034] ima_file_check+0x8e/0xd0
[ 201.741528][ T4034] security_file_post_open+0xc6/0x540
[ 201.747161][ T4034] path_openat+0x5916/0x6250
[ 201.752172][ T4034] do_filp_open+0x268/0x600
[ 201.756873][ T4034] do_sys_openat2+0x1bf/0x2f0
[ 201.761824][ T4034] __x64_sys_openat+0x2a1/0x310
[ 201.766849][ T4034] x64_sys_call+0x36f5/0x3c30
[ 201.771785][ T4034] do_syscall_64+0xcd/0x1e0
[ 201.776517][ T4034] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 201.782743][ T4034]
[ 201.785208][ T4034] CPU: 1 UID: 0 PID: 4034 Comm: kworker/u8:21 Not tainted 6.14.0-rc7-syzkaller-00205-g586de92313fc #0
[ 201.796510][ T4034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 201.806815][ T4034] Workqueue: events_unbound __bch2_read_endio
[ 201.813202][ T4034] =====================================================
[ 201.820374][ T4034] Disabling lock debugging due to kernel taint
[ 201.826610][ T4034] Kernel panic - not syncing: kmsan.panic set ...
[ 201.833141][ T4034] CPU: 1 UID: 0 PID: 4034 Comm: kworker/u8:21 Tainted: G B 6.14.0-rc7-syzkaller-00205-g586de92313fc #0
[ 201.845719][ T4034] Tainted: [B]=BAD_PAGE
[ 201.849947][ T4034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 201.860123][ T4034] Workqueue: events_unbound __bch2_read_endio
[ 201.866389][ T4034] Call Trace:
[ 201.869786][ T4034] <TASK>
[ 201.872805][ T4034] dump_stack_lvl+0x216/0x2d0
[ 201.877628][ T4034] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 201.883610][ T4034] dump_stack+0x1e/0x24
[ 201.887885][ T4034] panic+0x4e2/0xcf0
[ 201.891975][ T4034] ? kmsan_get_metadata+0xf1/0x1c0
[ 201.897257][ T4034] kmsan_report+0x2c7/0x2d0
[ 201.901917][ T4034] ? kmsan_get_metadata+0x13e/0x1c0
[ 201.907272][ T4034] ? __msan_warning+0x95/0x120
[ 201.912172][ T4034] ? LZ4_decompress_safe_partial+0x825/0x1e50
[ 201.918429][ T4034] ? __bio_uncompress+0x641/0xd40
[ 201.923603][ T4034] ? bch2_bio_uncompress+0x4d9/0x800
[ 201.929047][ T4034] ? __bch2_read_endio+0x16b2/0x25a0
[ 201.934492][ T4034] ? process_scheduled_works+0xc1a/0x1e80
[ 201.940389][ T4034] ? worker_thread+0xea7/0x14f0
[ 201.945390][ T4034] ? kthread+0x6b9/0xef0
[ 201.949839][ T4034] ? ret_from_fork+0x6d/0x90
[ 201.954557][ T4034] ? ret_from_fork_asm+0x1a/0x30
[ 201.959617][ T4034] ? _raw_spin_unlock_irqrestore+0x3f/0x60
[ 201.965602][ T4034] ? stack_depot_save_flags+0x6db/0x750
[ 201.971308][ T4034] ? kmsan_get_metadata+0x13e/0x1c0
[ 201.976647][ T4034] ? kmsan_internal_set_shadow_origin+0x69/0x100
[ 201.983139][ T4034] ? kmsan_get_metadata+0x13e/0x1c0
[ 201.988500][ T4034] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 201.994486][ T4034] ? __bio_map_or_bounce+0xe1e/0x18a0
[ 202.000011][ T4034] ? kmsan_get_metadata+0x13e/0x1c0
[ 202.005396][ T4034] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 202.011365][ T4034] __msan_warning+0x95/0x120
[ 202.016086][ T4034] LZ4_decompress_safe_partial+0x825/0x1e50
[ 202.022191][ T4034] ? kmsan_get_metadata+0x13e/0x1c0
[ 202.027531][ T4034] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0
[ 202.033484][ T4034] __bio_uncompress+0x641/0xd40
[ 202.038543][ T4034] bch2_bio_uncompress+0x4d9/0x800
[ 202.043867][ T4034] __bch2_read_endio+0x16b2/0x25a0
[ 202.049179][ T4034] ? kmsan_get_metadata+0x13e/0x1c0
[ 202.054655][ T4034] ? __pfx___bch2_read_endio+0x10/0x10
[ 202.060271][ T4034] process_scheduled_works+0xc1a/0x1e80
[ 202.066086][ T4034] worker_thread+0xea7/0x14f0
[ 202.070915][ T4034] kthread+0x6b9/0xef0
[ 202.075119][ T4034] ? __pfx_worker_thread+0x10/0x10
[ 202.080411][ T4034] ? __pfx_kthread+0x10/0x10
[ 202.085222][ T4034] ret_from_fork+0x6d/0x90
[ 202.089835][ T4034] ? __pfx_kthread+0x10/0x10
[ 202.094560][ T4034] ret_from_fork_asm+0x1a/0x30
[ 202.099481][ T4034] </TASK>
[ 202.102975][ T4034] Kernel Offset: disabled
[ 202.107409][ T4034] Rebooting in 86400 seconds..