./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1591199100 <...> Warning: Permanently added '10.128.0.112' (ED25519) to the list of known hosts. execve("./syz-executor1591199100", ["./syz-executor1591199100"], 0x7ffff389ea30 /* 10 vars */) = 0 brk(NULL) = 0x555561485000 brk(0x555561485d00) = 0x555561485d00 arch_prctl(ARCH_SET_FS, 0x555561485380) = 0 set_tid_address(0x555561485650) = 5778 set_robust_list(0x555561485660, 24) = 0 rseq(0x555561485ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1591199100", 4096) = 28 getrandom("\xa7\x1c\x5d\xd7\xe2\x4e\x81\x73", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555561485d00 brk(0x5555614a6d00) = 0x5555614a6d00 brk(0x5555614a7000) = 0x5555614a7000 mprotect(0x7fb1f8542000, 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=0x555561485650) = 5779 ./strace-static-x86_64: Process 5779 attached [pid 5779] set_robust_list(0x555561485660, 24) = 0 [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5779] setpgid(0, 0) = 0 [pid 5779] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1000", 4) = 4 [pid 5779] close(3) = 0 executing program [pid 5779] write(1, "executing program\n", 18) = 18 [pid 5779] memfd_create("syzkaller", 0) = 3 [pid 5779] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb1f0000000 [pid 5779] 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 5779] munmap(0x7fb1f0000000, 138412032) = 0 [pid 5779] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5779] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5779] close(3) = 0 [pid 5779] close(4) = 0 [pid 5779] mkdir("./file1", 0777) = 0 [ 189.218896][ T5779] loop0: detected capacity change from 0 to 32768 [ 189.344560][ T5779] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 189.364830][ T5779] bcachefs (loop0): initializing new filesystem [ 189.383473][ T5779] bcachefs (loop0): going read-write [ 189.397566][ T5779] bcachefs (loop0): marking superblocks [ 189.425853][ T5779] ===================================================== [ 189.433818][ T5779] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 189.441859][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 189.447180][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 189.453413][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 189.460207][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 189.466249][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 189.473077][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 189.479796][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 189.486996][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 189.495158][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 189.501821][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 189.508516][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 189.514282][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 189.520232][ T5779] bch2_fs_start+0x77d/0xbd0 [ 189.525575][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 189.531593][ T5779] vfs_get_tree+0xb1/0x5a0 [ 189.537070][ T5779] do_new_mount+0x71f/0x15e0 [ 189.542813][ T5779] path_mount+0x742/0x1f10 [ 189.547525][ T5779] __se_sys_mount+0x722/0x810 [ 189.553518][ T5779] __x64_sys_mount+0xe4/0x150 [ 189.559004][ T5779] x64_sys_call+0x39bf/0x3c30 [ 189.564289][ T5779] do_syscall_64+0xcd/0x1e0 [ 189.569340][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.575713][ T5779] [ 189.578258][ T5779] Uninit was created at: [ 189.583593][ T5779] ___kmalloc_large_node+0x22c/0x370 [ 189.589574][ T5779] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 189.595885][ T5779] __kmalloc_node_noprof+0xc96/0x1250 [ 189.602113][ T5779] __kvmalloc_node_noprof+0xc0/0x2d0 [ 189.608786][ T5779] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 189.615210][ T5779] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 189.621738][ T5779] bch2_fs_open+0x4d3a/0x5b40 [ 189.627463][ T5779] bch2_fs_get_tree+0x983/0x22d0 [ 189.633686][ T5779] vfs_get_tree+0xb1/0x5a0 [ 189.639270][ T5779] do_new_mount+0x71f/0x15e0 [ 189.644637][ T5779] path_mount+0x742/0x1f10 [ 189.649350][ T5779] __se_sys_mount+0x722/0x810 [ 189.654950][ T5779] __x64_sys_mount+0xe4/0x150 [ 189.660147][ T5779] x64_sys_call+0x39bf/0x3c30 [ 189.665400][ T5779] do_syscall_64+0xcd/0x1e0 [ 189.670909][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.677586][ T5779] [ 189.680254][ T5779] CPU: 0 UID: 0 PID: 5779 Comm: syz-executor159 Not tainted 6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0 [ 189.692348][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 189.702983][ T5779] ===================================================== [ 189.710384][ T5779] Disabling lock debugging due to kernel taint [ 189.716818][ T5779] Kernel panic - not syncing: kmsan.panic set ... [ 189.723492][ T5779] CPU: 0 UID: 0 PID: 5779 Comm: syz-executor159 Tainted: G B 6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0 [ 189.736321][ T5779] Tainted: [B]=BAD_PAGE [ 189.740708][ T5779] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 189.751333][ T5779] Call Trace: [ 189.754731][ T5779] [ 189.757764][ T5779] dump_stack_lvl+0x216/0x2d0 [ 189.762750][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.768957][ T5779] dump_stack+0x1e/0x24 [ 189.773429][ T5779] panic+0x4e2/0xcf0 [ 189.778323][ T5779] ? kmsan_get_metadata+0xb1/0x1c0 [ 189.783929][ T5779] kmsan_report+0x2c7/0x2d0 [ 189.788756][ T5779] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 189.794824][ T5779] ? __msan_warning+0x95/0x120 [ 189.800038][ T5779] ? rw_aux_tree_set+0x4d2/0x580 [ 189.805388][ T5779] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 189.811361][ T5779] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 189.817632][ T5779] ? bch2_bset_insert+0x1621/0x19f0 [ 189.823068][ T5779] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 189.829292][ T5779] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 189.835630][ T5779] ? __bch2_trans_commit+0xaf5e/0xd190 [ 189.841377][ T5779] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 189.848024][ T5779] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 189.853959][ T5779] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 189.860363][ T5779] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 189.865962][ T5779] ? bch2_fs_initialize+0x19bd/0x35d0 [ 189.871832][ T5779] ? bch2_fs_start+0x77d/0xbd0 [ 189.876892][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 189.882479][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 189.887253][ T5779] ? do_new_mount+0x71f/0x15e0 [ 189.892151][ T5779] ? path_mount+0x742/0x1f10 [ 189.896987][ T5779] ? __se_sys_mount+0x722/0x810 [ 189.901958][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 189.907008][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 189.912197][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 189.917126][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 189.923353][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.929298][ T5779] ? filter_irq_stacks+0x164/0x1a0 [ 189.934553][ T5779] ? stack_depot_save_flags+0x2c/0x750 [ 189.940237][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 189.945547][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 189.952026][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 189.957779][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 189.963747][ T5779] __msan_warning+0x95/0x120 [ 189.968583][ T5779] rw_aux_tree_set+0x4d2/0x580 [ 189.973597][ T5779] ? bset_aux_tree_verify+0x44d/0x4a0 [ 189.979319][ T5779] rw_aux_tree_insert_entry+0x6c3/0x970 [ 189.986934][ T5779] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 189.993616][ T5779] ? bch2_bkey_pack_key+0x1745/0x1860 [ 189.999277][ T5779] bch2_bset_insert+0x1621/0x19f0 [ 190.004725][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.010168][ T5779] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 190.016182][ T5779] ? __msan_memcpy+0x108/0x1c0 [ 190.021131][ T5779] bch2_btree_insert_key_leaf+0x276/0x1050 [ 190.027356][ T5779] __bch2_trans_commit+0xaf5e/0xd190 [ 190.032880][ T5779] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 190.039487][ T5779] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 190.046871][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.052318][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 190.058429][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.063847][ T5779] ? kmsan_internal_set_shadow_origin+0x40/0x100 [ 190.070542][ T5779] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 190.076395][ T5779] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 190.082784][ T5779] bch2_trans_mark_dev_sbs+0x32/0x40 [ 190.088289][ T5779] bch2_fs_initialize+0x19bd/0x35d0 [ 190.093802][ T5779] ? kmsan_internal_poison_memory+0x49/0x90 [ 190.100738][ T5779] ? kmsan_slab_free+0xd0/0x140 [ 190.106004][ T5779] ? kfree+0x240/0xdb0 [ 190.110385][ T5779] ? bch2_printbuf_exit+0x9b/0xd0 [ 190.115855][ T5779] ? print_mount_opts+0x4ca/0x4f0 [ 190.121515][ T5779] ? bch2_fs_start+0x59/0xbd0 [ 190.126510][ T5779] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 190.132313][ T5779] ? vfs_get_tree+0xb1/0x5a0 [ 190.137050][ T5779] ? do_new_mount+0x71f/0x15e0 [ 190.141946][ T5779] ? path_mount+0x742/0x1f10 [ 190.146927][ T5779] ? __se_sys_mount+0x722/0x810 [ 190.152027][ T5779] ? __x64_sys_mount+0xe4/0x150 [ 190.157018][ T5779] ? x64_sys_call+0x39bf/0x3c30 [ 190.162125][ T5779] ? do_syscall_64+0xcd/0x1e0 [ 190.167025][ T5779] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 190.173342][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.179061][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 190.185434][ T5779] ? kfree+0x1a7/0xdb0 [ 190.189936][ T5779] ? filter_irq_stacks+0x60/0x1a0 [ 190.195437][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.200949][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.207086][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 190.213741][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.219186][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.225322][ T5779] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 190.232012][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.237892][ T5779] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 190.244700][ T5779] ? llist_reverse_order+0x102/0x130 [ 190.250291][ T5779] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 190.258436][ T5779] ? __closure_wake_up+0x16a/0x180 [ 190.264337][ T5779] bch2_fs_start+0x77d/0xbd0 [ 190.269635][ T5779] bch2_fs_get_tree+0x13ea/0x22d0 [ 190.274894][ T5779] vfs_get_tree+0xb1/0x5a0 [ 190.279679][ T5779] ? mount_capable+0x97/0x120 [ 190.284527][ T5779] do_new_mount+0x71f/0x15e0 [ 190.289576][ T5779] ? kmsan_get_metadata+0x13e/0x1c0 [ 190.295215][ T5779] path_mount+0x742/0x1f10 [ 190.299922][ T5779] ? user_path_at+0x374/0x3e0 [ 190.304778][ T5779] __se_sys_mount+0x722/0x810 [ 190.309831][ T5779] ? ptrace_notify+0x263/0x320 [ 190.315011][ T5779] __x64_sys_mount+0xe4/0x150 [ 190.320034][ T5779] x64_sys_call+0x39bf/0x3c30 [ 190.324950][ T5779] do_syscall_64+0xcd/0x1e0 [ 190.329763][ T5779] ? clear_bhb_loop+0x25/0x80 [ 190.334734][ T5779] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 190.340913][ T5779] RIP: 0033:0x7fb1f84cadea [ 190.345544][ T5779] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 5e 04 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 190.366658][ T5779] RSP: 002b:00007fff476a0e38 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 190.375807][ T5779] RAX: ffffffffffffffda RBX: 00007fff476a0e50 RCX: 00007fb1f84cadea [ 190.383898][ T5779] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007fff476a0e50 [ 190.392616][ T5779] RBP: 0000000000000004 R08: 00007fff476a0e90 R09: 0000000000005a0a [ 190.400986][ T5779] R10: 0000000002000010 R11: 0000000000000282 R12: 0000000002000010 [ 190.409246][ T5779] R13: 00007fff476a0e90 R14: 0000000000000003 R15: 0000000001000000 [ 190.418237][ T5779] [ 190.421772][ T5779] Kernel Offset: disabled [ 190.426179][ T5779] Rebooting in 86400 seconds..