./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor785701091 <...> Warning: Permanently added '10.128.0.132' (ED25519) to the list of known hosts. execve("./syz-executor785701091", ["./syz-executor785701091"], 0x7fff4b920190 /* 10 vars */) = 0 brk(NULL) = 0x55555d20b000 brk(0x55555d20bd00) = 0x55555d20bd00 arch_prctl(ARCH_SET_FS, 0x55555d20b380) = 0 set_tid_address(0x55555d20b650) = 5776 set_robust_list(0x55555d20b660, 24) = 0 rseq(0x55555d20bca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor785701091", 4096) = 27 getrandom("\x90\x3e\x63\x8f\xe3\xa9\xf1\x3a", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555d20bd00 brk(0x55555d22cd00) = 0x55555d22cd00 brk(0x55555d22d000) = 0x55555d22d000 mprotect(0x7f187f37d000, 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, child_tidptr=0x55555d20b650) = 5777 ./strace-static-x86_64: Process 5777 attached [pid 5777] set_robust_list(0x55555d20b660, 24) = 0 [pid 5777] prctl(PR_SET_PDEATHSIG, SIGKILLexecuting program ) = 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 [pid 5777] close(3) = 0 [pid 5777] write(1, "executing program\n", 18) = 18 [pid 5777] sched_setscheduler(0, SCHED_FIFO, NULL) = -1 EINVAL (Invalid argument) [pid 5777] memfd_create("syzkaller", 0) = 3 [pid 5777] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1876e00000 [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(0x7f1876e00000, 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 [ 182.628721][ T5777] loop0: detected capacity change from 0 to 32768 [ 182.781401][ 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 [ 182.803107][ T5777] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 182.812586][ T5777] bcachefs (loop0): Version upgrade required: [ 182.812586][ T5777] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 182.812586][ T5777] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 182.812586][ 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 [ 182.886976][ T5777] bcachefs (loop0): dropping and reconstructing all alloc info [ 182.935286][ T5777] bcachefs (loop0): check_topology... done [ 182.941746][ T5777] bcachefs (loop0): accounting_read... done [ 182.948823][ T5777] bcachefs (loop0): alloc_read... done [ 182.954810][ T5777] bcachefs (loop0): stripes_read... done [ 182.960942][ T5777] bcachefs (loop0): snapshots_read... done [pid 5777] mount("/dev/loop0", "./file1", "bcachefs", 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 [ 182.967284][ T5777] bcachefs (loop0): check_allocations... done [ 183.046721][ T5777] bcachefs (loop0): going read-write [ 183.064279][ T5777] bcachefs (loop0): done starting filesystem [pid 5777] openat(AT_FDCWD, "cpu.stat", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5777] exit_group(0) = ? [pid 5777] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5777, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=71 /* 0.71 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 5789 attached , child_tidptr=0x55555d20b650) = 5789 [pid 5789] set_robust_list(0x55555d20b660, 24) = 0 [pid 5789] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5789] setpgid(0, 0) = 0 [pid 5789] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5789] write(3, "1000", 4executing program ) = 4 [pid 5789] close(3) = 0 [pid 5789] write(1, "executing program\n", 18) = 18 [pid 5789] sched_setscheduler(0, SCHED_FIFO, NULL) = -1 EINVAL (Invalid argument) [pid 5789] memfd_create("syzkaller", 0) = 3 [pid 5789] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f1876e00000 [ 183.441606][ T5786] ===================================================== [ 183.448973][ T5786] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 183.457185][ T5786] bch2_inode_v3_validate+0x481/0x5a0 [ 183.462869][ T5786] bch2_bkey_val_validate+0x2b5/0x440 [ 183.468474][ T5786] validate_bset_keys+0x1531/0x2080 [ 183.474017][ T5786] validate_bset_for_write+0x142/0x290 [ 183.479709][ T5786] __bch2_btree_node_write+0x53df/0x6830 [ 183.485700][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 183.491287][ T5786] __btree_node_flush+0x606/0x680 [ 183.496516][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 183.502167][ T5786] journal_flush_pins+0xce6/0x1780 [ 183.507496][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 183.513299][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.519308][ T5786] kthread+0x3e2/0x540 [ 183.523675][ T5786] ret_from_fork+0x6d/0x90 [ 183.528310][ T5786] ret_from_fork_asm+0x1a/0x30 [ 183.533414][ T5786] [ 183.535849][ T5786] Uninit was stored to memory at: [ 183.541293][ T5786] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 183.548588][ T5786] __bch2_btree_node_write+0x3ae8/0x6830 [ 183.554637][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 183.560060][ T5786] __btree_node_flush+0x606/0x680 [ 183.565498][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 183.570969][ T5786] journal_flush_pins+0xce6/0x1780 [ 183.576275][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 183.582058][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.588071][ T5786] kthread+0x3e2/0x540 [ 183.592499][ T5786] ret_from_fork+0x6d/0x90 [ 183.597114][ T5786] ret_from_fork_asm+0x1a/0x30 [ 183.602310][ T5786] [ 183.604737][ T5786] Uninit was created at: [ 183.609255][ T5786] ___kmalloc_large_node+0x22c/0x370 [ 183.615035][ T5786] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 183.621137][ T5786] __kmalloc_node_noprof+0xc96/0x1250 [ 183.626737][ T5786] __kvmalloc_node_noprof+0xc0/0x2d0 [ 183.632416][ T5786] btree_node_sort+0x78a/0x1d30 [ 183.637501][ T5786] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 183.643854][ T5786] bch2_btree_node_write+0x21c/0x2e0 [ 183.649379][ T5786] __btree_node_flush+0x606/0x680 [ 183.654804][ T5786] bch2_btree_node_flush0+0x35/0x60 [ 183.660209][ T5786] journal_flush_pins+0xce6/0x1780 [ 183.665748][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 183.671490][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 183.677501][ T5786] kthread+0x3e2/0x540 [ 183.682086][ T5786] ret_from_fork+0x6d/0x90 [ 183.686709][ T5786] ret_from_fork_asm+0x1a/0x30 [ 183.691883][ T5786] [ 183.694342][ T5786] CPU: 0 UID: 0 PID: 5786 Comm: bch-reclaim/loo Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 [ 183.705875][ T5786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 183.716285][ T5786] ===================================================== [ 183.723508][ T5786] Disabling lock debugging due to kernel taint [ 183.729802][ T5786] Kernel panic - not syncing: kmsan.panic set ... [ 183.736406][ T5786] CPU: 0 UID: 0 PID: 5786 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 [ 183.749239][ T5786] Tainted: [B]=BAD_PAGE [ 183.753513][ T5786] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 183.763739][ T5786] Call Trace: [ 183.767151][ T5786] [ 183.770202][ T5786] dump_stack_lvl+0x216/0x2d0 [ 183.775105][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.781125][ T5786] dump_stack+0x1e/0x24 [ 183.785496][ T5786] panic+0x4e2/0xcf0 [pid 5789] 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 5789] munmap(0x7f1876e00000, 138412032) = 0 [pid 5789] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5789] ioctl(4, LOOP_CLR_FD) = 0 [pid 5789] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5789] close(4) = 0 [ 183.789594][ T5786] ? kmsan_get_metadata+0xa1/0x1c0 [ 183.794914][ T5786] kmsan_report+0x2c7/0x2d0 [ 183.799598][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.804997][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.810391][ T5786] ? __msan_warning+0x95/0x120 [ 183.815379][ T5786] ? bch2_inode_v3_validate+0x481/0x5a0 [ 183.821154][ T5786] ? bch2_bkey_val_validate+0x2b5/0x440 [ 183.827026][ T5786] ? validate_bset_keys+0x1531/0x2080 [ 183.832637][ T5786] ? validate_bset_for_write+0x142/0x290 [ 183.838516][ T5786] ? __bch2_btree_node_write+0x53df/0x6830 [ 183.844570][ T5786] ? bch2_btree_node_write+0xa5/0x2e0 [ 183.850174][ T5786] ? __btree_node_flush+0x606/0x680 [ 183.855582][ T5786] ? bch2_btree_node_flush1+0x38/0x60 [ 183.861178][ T5786] ? journal_flush_pins+0xce6/0x1780 [ 183.866674][ T5786] ? __bch2_journal_reclaim+0xda8/0x1670 [ 183.872523][ T5786] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 183.878728][ T5786] ? kthread+0x3e2/0x540 [ 183.883160][ T5786] ? ret_from_fork+0x6d/0x90 [ 183.887956][ T5786] ? ret_from_fork_asm+0x1a/0x30 [ 183.893133][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.899150][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.904550][ T5786] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 183.911134][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.916524][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.921918][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.927928][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.933326][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.939340][ T5786] ? kmsan_get_metadata+0x13e/0x1c0 [ 183.944738][ T5786] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 183.950760][ T5786] __msan_warning+0x95/0x120 [ 183.955573][ T5786] bch2_inode_v3_validate+0x481/0x5a0 [ 183.961179][ T5786] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 183.967306][ T5786] bch2_bkey_val_validate+0x2b5/0x440 [ 183.972935][ T5786] validate_bset_keys+0x1531/0x2080 [ 183.978423][ T5786] validate_bset_for_write+0x142/0x290 [ 183.984130][ T5786] __bch2_btree_node_write+0x53df/0x6830 [ 183.990031][ T5786] ? __update_load_avg_se+0xbb0/0x11a0 [ 183.995806][ T5786] bch2_btree_node_write+0xa5/0x2e0 [ 184.001248][ T5786] __btree_node_flush+0x606/0x680 [ 184.006490][ T5786] ? __btree_node_flush+0xd3/0x680 [ 184.011818][ T5786] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 184.017931][ T5786] bch2_btree_node_flush1+0x38/0x60 [ 184.023346][ T5786] journal_flush_pins+0xce6/0x1780 [ 184.028700][ T5786] __bch2_journal_reclaim+0xda8/0x1670 [ 184.034385][ T5786] ? __try_to_del_timer_sync+0x3d3/0x420 [ 184.040289][ T5786] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.046593][ T5786] kthread+0x3e2/0x540 [ 184.050860][ T5786] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 184.057408][ T5786] ? __pfx_kthread+0x10/0x10 [ 184.062190][ T5786] ret_from_fork+0x6d/0x90 [ 184.066822][ T5786] ? __pfx_kthread+0x10/0x10 [ 184.071613][ T5786] ret_from_fork_asm+0x1a/0x30 [ 184.076633][ T5786] [ 184.080093][ T5786] Kernel Offset: disabled [ 184.084516][ T5786] Rebooting in 86400 seconds..