./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2468195550 <...> Warning: Permanently added '10.128.0.107' (ED25519) to the list of known hosts. execve("./syz-executor2468195550", ["./syz-executor2468195550"], 0x7ffc989a5f50 /* 10 vars */) = 0 brk(NULL) = 0x555576f91000 brk(0x555576f91d00) = 0x555576f91d00 arch_prctl(ARCH_SET_FS, 0x555576f91380) = 0 set_tid_address(0x555576f91650) = 5786 set_robust_list(0x555576f91660, 24) = 0 rseq(0x555576f91ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2468195550", 4096) = 28 getrandom("\xe4\x4a\x10\x9f\x2a\xda\x4d\x86", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555576f91d00 brk(0x555576fb2d00) = 0x555576fb2d00 brk(0x555576fb3000) = 0x555576fb3000 mprotect(0x7f0af8369000, 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 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 5787 attached , child_tidptr=0x555576f91650) = 5787 [pid 5787] set_robust_list(0x555576f91660, 24) = 0 [pid 5787] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5787] setpgid(0, 0) = 0 [pid 5787] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5787] write(3, "1000", 4) = 4 [pid 5787] close(3) = 0 executing program [pid 5787] write(1, "executing program\n", 18) = 18 [pid 5787] sched_setscheduler(0, SCHED_FIFO, NULL) = -1 EINVAL (Invalid argument) [pid 5787] memfd_create("syzkaller", 0) = 3 [pid 5787] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0aefe00000 [pid 5787] 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 5787] munmap(0x7f0aefe00000, 138412032) = 0 [pid 5787] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5787] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5787] close(3) = 0 [pid 5787] close(4) = 0 [pid 5787] mkdir("./file1", 0777) = 0 [ 182.564860][ T5787] loop0: detected capacity change from 0 to 32768 [ 182.686820][ T5787] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=none,compression=gzip,erasure_code,journal_flush_disabled,norecovery,noexcl,reconstruct_alloc [ 182.706891][ T5787] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 182.716501][ T5787] bcachefs (loop0): Version upgrade required: [ 182.716501][ T5787] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 182.716501][ T5787] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 182.716501][ T5787] 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 [ 182.791125][ T5787] bcachefs (loop0): dropping and reconstructing all alloc info [ 182.837012][ T5787] bcachefs (loop0): accounting_read... done [ 182.844079][ T5787] bcachefs (loop0): alloc_read... done [ 182.850262][ T5787] bcachefs (loop0): stripes_read... done [ 182.856435][ T5787] bcachefs (loop0): snapshots_read... done [pid 5787] mount("/dev/loop0", "./file1", "bcachefs", MS_I_VERSION, "\x6e\x6f\x65\x78\x63\x6c\x2c\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\x6e\x6f\x72\x65\x63\x6f\x76\x65\x72\x79\x2c\x63\x6f\x6d\x70\x72\x65\x73\x73\x69\x8c\x6e\x3d\x6c\x7a\x34\x2c\x65\x72\x61\x73\x75\x72\x65\x5f\x63\x6f\x64\x65\x2c\x63\x6f\x6d\x70\x72\x65\x73\x73\x69\x6f\x6e\x3d\x7a\x73\x74\x64\x2c\x69\x6e\x6c\x69\x6e\x65\x5f\x64\x61\x74"...) = 0 [pid 5787] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5787] chdir("./file1") = 0 [pid 5787] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5787] ioctl(4, LOOP_CLR_FD) = 0 [pid 5787] close(4) = 0 [ 182.863271][ T5787] bcachefs (loop0): check_allocations... done [ 182.944721][ T5787] bcachefs (loop0): going read-write [ 182.968345][ T5787] bcachefs (loop0): done starting filesystem [pid 5787] openat(AT_FDCWD, "rdma.current", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5787] exit_group(0) = ? [pid 5787] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5787, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=70 /* 0.70 s */} --- openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = 0 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5800 attached , child_tidptr=0x555576f91650) = 5800 [pid 5800] set_robust_list(0x555576f91660, 24) = 0 [pid 5800] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5800] setpgid(0, 0) = 0 [pid 5800] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 executing program [pid 5800] write(3, "1000", 4) = 4 [pid 5800] close(3) = 0 [pid 5800] write(1, "executing program\n", 18) = 18 [pid 5800] sched_setscheduler(0, SCHED_FIFO, NULL) = -1 EINVAL (Invalid argument) [pid 5800] memfd_create("syzkaller", 0) = 3 [pid 5800] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f0aefe00000 [ 183.444083][ T5797] ===================================================== [ 183.451352][ T5797] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 183.459714][ T5797] bch2_inode_v3_validate+0x481/0x5a0 [ 183.465461][ T5797] bch2_bkey_val_validate+0x2b5/0x440 [ 183.471052][ T5797] validate_bset_keys+0x1531/0x2080 [ 183.476621][ T5797] validate_bset_for_write+0x142/0x290 [ 183.482322][ T5797] __bch2_btree_node_write+0x53df/0x6830 [ 183.488303][ T5797] bch2_btree_node_write+0xa5/0x2e0 [ 183.493962][ T5797] __btree_node_flush+0x606/0x680 [ 183.499188][ T5797] bch2_btree_node_flush1+0x38/0x60 [ 183.504785][ T5797] journal_flush_pins+0xce6/0x1780 [ 183.510086][ T5797] __bch2_journal_reclaim+0xda8/0x1670 [ 183.515887][ T5797] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.521895][ T5797] kthread+0x3e2/0x540 [ 183.526275][ T5797] ret_from_fork+0x6d/0x90 [ 183.530880][ T5797] ret_from_fork_asm+0x1a/0x30 [ 183.536269][ T5797] [ 183.538692][ T5797] Uninit was stored to memory at: [ 183.544132][ T5797] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 183.551410][ T5797] __bch2_btree_node_write+0x3ae8/0x6830 [ 183.557494][ T5797] bch2_btree_node_write+0xa5/0x2e0 [ 183.563107][ T5797] __btree_node_flush+0x606/0x680 [ 183.568329][ T5797] bch2_btree_node_flush1+0x38/0x60 [ 183.573882][ T5797] journal_flush_pins+0xce6/0x1780 [ 183.579189][ T5797] __bch2_journal_reclaim+0xda8/0x1670 [ 183.584954][ T5797] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.590965][ T5797] kthread+0x3e2/0x540 [ 183.595342][ T5797] ret_from_fork+0x6d/0x90 [ 183.599939][ T5797] ret_from_fork_asm+0x1a/0x30 [ 183.605036][ T5797] [ 183.607469][ T5797] Uninit was created at: [ 183.611981][ T5797] ___kmalloc_large_node+0x22c/0x370 [ 183.617697][ T5797] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 183.623759][ T5797] __kmalloc_node_noprof+0xc96/0x1250 [ 183.629347][ T5797] __kvmalloc_node_noprof+0xc0/0x2d0 [ 183.634978][ T5797] btree_node_sort+0x78a/0x1d30 [pid 5800] 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 5800] munmap(0x7f0aefe00000, 138412032) = 0 [pid 5800] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5800] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5800] ioctl(4, LOOP_CLR_FD) = 0 [pid 5800] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5800] close(4) = 0 [ 183.640051][ T5797] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 183.646448][ T5797] bch2_btree_node_write+0x21c/0x2e0 [ 183.651959][ T5797] __btree_node_flush+0x606/0x680 [ 183.657414][ T5797] bch2_btree_node_flush0+0x35/0x60 [ 183.663126][ T5797] journal_flush_pins+0xce6/0x1780 [ 183.669090][ T5797] __bch2_journal_reclaim+0xda8/0x1670 [ 183.674905][ T5797] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.680907][ T5797] kthread+0x3e2/0x540 [ 183.685257][ T5797] ret_from_fork+0x6d/0x90 [ 183.689864][ T5797] ret_from_fork_asm+0x1a/0x30 [ 183.695131][ T5797] [ 183.697589][ T5797] CPU: 0 UID: 0 PID: 5797 Comm: bch-reclaim/loo Not tainted 6.13.0-rc7-syzkaller-00102-gce69b4019001 #0 [ 183.709192][ T5797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 183.719555][ T5797] ===================================================== [ 183.726720][ T5797] Disabling lock debugging due to kernel taint [ 183.733181][ T5797] Kernel panic - not syncing: kmsan.panic set ... [ 183.739749][ T5797] CPU: 0 UID: 0 PID: 5797 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc7-syzkaller-00102-gce69b4019001 #0 [ 183.752570][ T5797] Tainted: [B]=BAD_PAGE [ 183.756843][ T5797] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 183.767067][ T5797] Call Trace: [ 183.770467][ T5797] [ 183.773513][ T5797] dump_stack_lvl+0x216/0x2d0 [ 183.778413][ T5797] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.784422][ T5797] dump_stack+0x1e/0x24 [ 183.788883][ T5797] panic+0x4e2/0xcf0 [ 183.792987][ T5797] ? kmsan_get_metadata+0x111/0x1c0 [ 183.798405][ T5797] kmsan_report+0x2c7/0x2d0 [ 183.803089][ T5797] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.808486][ T5797] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.813884][ T5797] ? __msan_warning+0x95/0x120 [ 183.818878][ T5797] ? bch2_inode_v3_validate+0x481/0x5a0 [ 183.824661][ T5797] ? bch2_bkey_val_validate+0x2b5/0x440 [ 183.830448][ T5797] ? validate_bset_keys+0x1531/0x2080 [ 183.836056][ T5797] ? validate_bset_for_write+0x142/0x290 [ 183.841924][ T5797] ? __bch2_btree_node_write+0x53df/0x6830 [ 183.848052][ T5797] ? bch2_btree_node_write+0xa5/0x2e0 [ 183.853699][ T5797] ? __btree_node_flush+0x606/0x680 [ 183.859114][ T5797] ? bch2_btree_node_flush1+0x38/0x60 [ 183.864702][ T5797] ? journal_flush_pins+0xce6/0x1780 [ 183.870180][ T5797] ? __bch2_journal_reclaim+0xda8/0x1670 [ 183.876005][ T5797] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 183.882191][ T5797] ? kthread+0x3e2/0x540 [ 183.886621][ T5797] ? ret_from_fork+0x6d/0x90 [ 183.891408][ T5797] ? ret_from_fork_asm+0x1a/0x30 [ 183.896572][ T5797] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.902573][ T5797] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.907959][ T5797] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 183.914527][ T5797] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.919913][ T5797] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.925292][ T5797] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.931297][ T5797] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.936686][ T5797] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.942699][ T5797] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.948095][ T5797] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.954102][ T5797] __msan_warning+0x95/0x120 [ 183.958936][ T5797] bch2_inode_v3_validate+0x481/0x5a0 [ 183.964560][ T5797] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 183.970692][ T5797] bch2_bkey_val_validate+0x2b5/0x440 [ 183.976314][ T5797] validate_bset_keys+0x1531/0x2080 [ 183.981811][ T5797] validate_bset_for_write+0x142/0x290 [ 183.987536][ T5797] __bch2_btree_node_write+0x53df/0x6830 [ 183.993427][ T5797] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.999450][ T5797] ? filter_irq_stacks+0x60/0x1a0 [ 184.004829][ T5797] bch2_btree_node_write+0xa5/0x2e0 [ 184.010276][ T5797] __btree_node_flush+0x606/0x680 [ 184.015555][ T5797] ? __btree_node_flush+0xd3/0x680 [ 184.020886][ T5797] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 184.027008][ T5797] bch2_btree_node_flush1+0x38/0x60 [ 184.032515][ T5797] journal_flush_pins+0xce6/0x1780 [ 184.037879][ T5797] __bch2_journal_reclaim+0xda8/0x1670 [ 184.043580][ T5797] ? __try_to_del_timer_sync+0x3d3/0x420 [ 184.049490][ T5797] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.055628][ T5797] kthread+0x3e2/0x540 [ 184.059902][ T5797] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 184.066568][ T5797] ? __pfx_kthread+0x10/0x10 [ 184.071451][ T5797] ret_from_fork+0x6d/0x90 [ 184.076078][ T5797] ? __pfx_kthread+0x10/0x10 [ 184.080871][ T5797] ret_from_fork_asm+0x1a/0x30 [ 184.085978][ T5797] [ 184.089426][ T5797] Kernel Offset: disabled [ 184.093844][ T5797] Rebooting in 86400 seconds..