./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1262935237 <...> Warning: Permanently added '10.128.1.83' (ED25519) to the list of known hosts. execve("./syz-executor1262935237", ["./syz-executor1262935237"], 0x7fff84305760 /* 10 vars */) = 0 brk(NULL) = 0x55558f111000 brk(0x55558f111d00) = 0x55558f111d00 arch_prctl(ARCH_SET_FS, 0x55558f111380) = 0 set_tid_address(0x55558f111650) = 5780 set_robust_list(0x55558f111660, 24) = 0 rseq(0x55558f111ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1262935237", 4096) = 28 getrandom("\x46\xc9\xd1\x17\xe7\xbf\x2c\x27", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558f111d00 brk(0x55558f132d00) = 0x55558f132d00 brk(0x55558f133000) = 0x55558f133000 mprotect(0x7f9f5278a000, 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=0x55558f111650) = 5781 ./strace-static-x86_64: Process 5781 attached [pid 5781] set_robust_list(0x55558f111660, 24) = 0 [pid 5781] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5781] setpgid(0, 0) = 0 [pid 5781] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5781] write(3, "1000", 4) = 4 executing program [pid 5781] close(3) = 0 [pid 5781] write(1, "executing program\n", 18) = 18 [pid 5781] memfd_create("syzkaller", 0) = 3 [pid 5781] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9f4a200000 [pid 5781] 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 5781] munmap(0x7f9f4a200000, 138412032) = 0 [pid 5781] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5781] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5781] close(3) = 0 [pid 5781] close(4) = 0 [pid 5781] mkdir("./file1", 0777) = 0 [ 183.250866][ T5781] loop0: detected capacity change from 0 to 32768 [ 183.395999][ T5781] 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 [ 183.417885][ T5781] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 183.427377][ T5781] bcachefs (loop0): Version upgrade required: [ 183.427377][ T5781] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 183.427377][ T5781] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 183.427377][ T5781] 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 [ 183.502200][ T5781] bcachefs (loop0): dropping and reconstructing all alloc info [ 183.549991][ T5781] bcachefs (loop0): check_topology... done [ 183.556342][ T5781] bcachefs (loop0): accounting_read... done [ 183.563593][ T5781] bcachefs (loop0): alloc_read... done [ 183.569406][ T5781] bcachefs (loop0): stripes_read... done [ 183.575674][ T5781] bcachefs (loop0): snapshots_read... done [pid 5781] 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 5781] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5781] chdir("./file1") = 0 [pid 5781] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5781] ioctl(4, LOOP_CLR_FD) = 0 [pid 5781] close(4) = 0 [pid 5781] openat(AT_FDCWD, ".pending_reads", O_WRONLY|O_CREAT|O_EXCL|O_SYNC|O_NOFOLLOW|O_CLOEXEC, 06222) = 4 [pid 5781] exit_group(0) = ? [pid 5781] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5781, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=74 /* 0.74 s */} --- [ 183.582334][ T5781] bcachefs (loop0): check_allocations... done [ 183.662169][ T5781] bcachefs (loop0): going read-write [ 183.678577][ T5781] bcachefs (loop0): done starting filesystem restart_syscall(<... resuming interrupted clone ...>) = 0 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 5793 attached [pid 5793] set_robust_list(0x55558f111660, 24) = 0 [pid 5793] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 5780] <... clone resumed>, child_tidptr=0x55558f111650) = 5793 [pid 5793] <... prctl resumed>) = 0 [pid 5793] setpgid(0, 0) = 0 [pid 5793] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5793] write(3, "1000", 4) = 4 [pid 5793] close(3) = 0 executing program [pid 5793] write(1, "executing program\n", 18) = 18 [pid 5793] memfd_create("syzkaller", 0) = 3 [pid 5793] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9f4a200000 [ 184.042782][ T5790] ===================================================== [ 184.050126][ T5790] BUG: KMSAN: uninit-value in bch2_inode_v3_validate+0x481/0x5a0 [ 184.058272][ T5790] bch2_inode_v3_validate+0x481/0x5a0 [ 184.063993][ T5790] bch2_bkey_val_validate+0x2b5/0x440 [ 184.069586][ T5790] validate_bset_keys+0x1531/0x2080 [ 184.075177][ T5790] validate_bset_for_write+0x142/0x290 [ 184.080881][ T5790] __bch2_btree_node_write+0x53df/0x6830 [ 184.086956][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 184.092476][ T5790] __btree_node_flush+0x606/0x680 [ 184.097694][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 184.103323][ T5790] journal_flush_pins+0xce6/0x1780 [ 184.108610][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 184.114360][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.120354][ T5790] kthread+0x3e2/0x540 [ 184.124743][ T5790] ret_from_fork+0x6d/0x90 [ 184.129346][ T5790] ret_from_fork_asm+0x1a/0x30 [ 184.134498][ T5790] [ 184.136920][ T5790] Uninit was stored to memory at: [ 184.142382][ T5790] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 184.149651][ T5790] __bch2_btree_node_write+0x3ae8/0x6830 [ 184.155688][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 184.161096][ T5790] __btree_node_flush+0x606/0x680 [ 184.166636][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 184.172270][ T5790] journal_flush_pins+0xce6/0x1780 [ 184.177578][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 184.183394][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.189394][ T5790] kthread+0x3e2/0x540 [ 184.193829][ T5790] ret_from_fork+0x6d/0x90 [ 184.198439][ T5790] ret_from_fork_asm+0x1a/0x30 [ 184.203552][ T5790] [ 184.206012][ T5790] Uninit was created at: [ 184.210554][ T5790] ___kmalloc_large_node+0x22c/0x370 [ 184.216212][ T5790] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 184.222305][ T5790] __kmalloc_node_noprof+0xc96/0x1250 [ 184.227941][ T5790] __kvmalloc_node_noprof+0xc0/0x2d0 [ 184.233582][ T5790] btree_node_sort+0x78a/0x1d30 [ 184.238661][ T5790] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 184.245043][ T5790] bch2_btree_node_write+0x21c/0x2e0 [ 184.250637][ T5790] __btree_node_flush+0x606/0x680 [ 184.256171][ T5790] bch2_btree_node_flush0+0x35/0x60 [ 184.261564][ T5790] journal_flush_pins+0xce6/0x1780 [ 184.267516][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 184.273263][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.279353][ T5790] kthread+0x3e2/0x540 [ 184.283779][ T5790] ret_from_fork+0x6d/0x90 [ 184.288391][ T5790] ret_from_fork_asm+0x1a/0x30 [ 184.293482][ T5790] [ 184.295954][ T5790] CPU: 0 UID: 0 PID: 5790 Comm: bch-reclaim/loo Not tainted 6.13.0-rc4-syzkaller-00071-gfd0584d220fe #0 [ 184.307478][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 184.317882][ T5790] ===================================================== [ 184.325182][ T5790] Disabling lock debugging due to kernel taint [ 184.331486][ T5790] Kernel panic - not syncing: kmsan.panic set ... [pid 5793] 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 5793] munmap(0x7f9f4a200000, 138412032) = 0 [pid 5793] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5793] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5793] ioctl(4, LOOP_CLR_FD) = 0 [ 184.338145][ T5790] CPU: 0 UID: 0 PID: 5790 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc4-syzkaller-00071-gfd0584d220fe #0 [ 184.350976][ T5790] Tainted: [B]=BAD_PAGE [ 184.355254][ T5790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 184.365484][ T5790] Call Trace: [ 184.368890][ T5790] [ 184.371927][ T5790] dump_stack_lvl+0x216/0x2d0 [ 184.376923][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.382936][ T5790] dump_stack+0x1e/0x24 [ 184.387307][ T5790] panic+0x4e2/0xcf0 [pid 5793] ioctl(4, LOOP_SET_FD, 3) = -1 EBUSY (Device or resource busy) [pid 5793] close(4) = 0 [ 184.391412][ T5790] ? kmsan_get_metadata+0x131/0x1c0 [ 184.396821][ T5790] kmsan_report+0x2c7/0x2d0 [ 184.401501][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.407331][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.412822][ T5790] ? __msan_warning+0x95/0x120 [ 184.417818][ T5790] ? bch2_inode_v3_validate+0x481/0x5a0 [ 184.423604][ T5790] ? bch2_bkey_val_validate+0x2b5/0x440 [ 184.429389][ T5790] ? validate_bset_keys+0x1531/0x2080 [ 184.435003][ T5790] ? validate_bset_for_write+0x142/0x290 [ 184.440875][ T5790] ? __bch2_btree_node_write+0x53df/0x6830 [ 184.446918][ T5790] ? bch2_btree_node_write+0xa5/0x2e0 [ 184.452515][ T5790] ? __btree_node_flush+0x606/0x680 [ 184.457915][ T5790] ? bch2_btree_node_flush1+0x38/0x60 [ 184.463505][ T5790] ? journal_flush_pins+0xce6/0x1780 [ 184.468974][ T5790] ? __bch2_journal_reclaim+0xda8/0x1670 [ 184.474802][ T5790] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 184.480984][ T5790] ? kthread+0x3e2/0x540 [ 184.485411][ T5790] ? ret_from_fork+0x6d/0x90 [ 184.490222][ T5790] ? ret_from_fork_asm+0x1a/0x30 [ 184.495467][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.501467][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.506850][ T5790] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 184.513419][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.518798][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.524195][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.530231][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.535614][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.541615][ T5790] ? kmsan_get_metadata+0x13e/0x1c0 [ 184.547003][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.553010][ T5790] __msan_warning+0x95/0x120 [ 184.557844][ T5790] bch2_inode_v3_validate+0x481/0x5a0 [ 184.563456][ T5790] ? __pfx_bch2_inode_v3_validate+0x10/0x10 [ 184.569567][ T5790] bch2_bkey_val_validate+0x2b5/0x440 [ 184.575178][ T5790] validate_bset_keys+0x1531/0x2080 [ 184.580652][ T5790] validate_bset_for_write+0x142/0x290 [ 184.586353][ T5790] __bch2_btree_node_write+0x53df/0x6830 [ 184.592219][ T5790] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 184.598222][ T5790] ? filter_irq_stacks+0x60/0x1a0 [ 184.603502][ T5790] bch2_btree_node_write+0xa5/0x2e0 [ 184.608931][ T5790] __btree_node_flush+0x606/0x680 [ 184.614156][ T5790] ? __btree_node_flush+0xd3/0x680 [ 184.619646][ T5790] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 184.625743][ T5790] bch2_btree_node_flush1+0x38/0x60 [ 184.631148][ T5790] journal_flush_pins+0xce6/0x1780 [ 184.636578][ T5790] __bch2_journal_reclaim+0xda8/0x1670 [ 184.642237][ T5790] ? __try_to_del_timer_sync+0x3d3/0x420 [ 184.648122][ T5790] bch2_journal_reclaim_thread+0x18e/0x760 [ 184.654207][ T5790] kthread+0x3e2/0x540 [ 184.658445][ T5790] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 184.664985][ T5790] ? __pfx_kthread+0x10/0x10 [ 184.669767][ T5790] ret_from_fork+0x6d/0x90 [ 184.674372][ T5790] ? __pfx_kthread+0x10/0x10 [ 184.679146][ T5790] ret_from_fork_asm+0x1a/0x30 [ 184.684147][ T5790] [ 184.687464][ T5790] Kernel Offset: disabled [ 184.691854][ T5790] Rebooting in 86400 seconds..