./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3910684765 <...> Warning: Permanently added '10.128.0.140' (ED25519) to the list of known hosts. execve("./syz-executor3910684765", ["./syz-executor3910684765"], 0x7ffc02d95400 /* 10 vars */) = 0 brk(NULL) = 0x55556626a000 brk(0x55556626ad40) = 0x55556626ad40 arch_prctl(ARCH_SET_FS, 0x55556626a3c0) = 0 set_tid_address(0x55556626a690) = 5777 set_robust_list(0x55556626a6a0, 24) = 0 rseq(0x55556626ace0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3910684765", 4096) = 28 getrandom("\x53\x23\x5c\xd3\x53\x6b\x11\xe6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556626ad40 brk(0x55556628bd40) = 0x55556628bd40 brk(0x55556628c000) = 0x55556628c000 mprotect(0x7ff2fd714000, 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=0x55556626a690) = 5778 ./strace-static-x86_64: Process 5778 attached [pid 5778] set_robust_list(0x55556626a6a0, 24) = 0 [pid 5778] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5778] setpgid(0, 0) = 0 [pid 5778] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5778] write(3, "1000", 4) = 4 [pid 5778] close(3) = 0 executing program [pid 5778] write(1, "executing program\n", 18) = 18 [pid 5778] futex(0x7ff2fd71a5ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 5778] rt_sigaction(SIGRT_1, {sa_handler=0x7ff2fd6b3230, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7ff2fd6a48e0}, NULL, 8) = 0 [pid 5778] rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 [pid 5778] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7ff2fd624000 [pid 5778] mprotect(0x7ff2fd625000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 5778] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 5778] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7ff2fd644990, parent_tid=0x7ff2fd644990, exit_signal=0, stack=0x7ff2fd624000, stack_size=0x20300, tls=0x7ff2fd6446c0}./strace-static-x86_64: Process 5780 attached => {parent_tid=[5780]}, 88) = 5780 [pid 5780] rseq(0x7ff2fd644fe0, 0x20, 0, 0x53053053) = 0 [pid 5780] set_robust_list(0x7ff2fd6449a0, 24 [pid 5778] rt_sigprocmask(SIG_SETMASK, [], [pid 5780] <... set_robust_list resumed>) = 0 [pid 5778] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5780] rt_sigprocmask(SIG_SETMASK, [], [pid 5778] futex(0x7ff2fd71a5e8, FUTEX_WAKE_PRIVATE, 1000000 [pid 5780] <... rt_sigprocmask resumed>NULL, 8) = 0 [pid 5778] <... futex resumed>) = 0 [pid 5780] memfd_create("syzkaller", 0 [pid 5778] futex(0x7ff2fd71a5ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=4, tv_nsec=50000000} [pid 5780] <... memfd_create resumed>) = 3 [pid 5780] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7ff2f5200000 [pid 5780] 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 5780] munmap(0x7ff2f5200000, 138412032) = 0 [pid 5780] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5780] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5780] close(3) = 0 [pid 5780] close(4) = 0 [pid 5780] mkdir("./file1", 0777) = 0 [ 185.135865][ T5780] loop0: detected capacity change from 0 to 32768 [ 185.270439][ T5780] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=errors=continue,metadata_checksum=none,data_checksum=none,compression=lz4,nojournal_transaction_names [ 185.287849][ T5780] bcachefs (loop0): initializing new filesystem [ 185.299588][ T5780] bcachefs (loop0): going read-write [ 185.309146][ T5780] bcachefs (loop0): marking superblocks [ 185.335901][ T5780] ===================================================== [ 185.343291][ T5780] BUG: KMSAN: uninit-value in rw_aux_tree_set+0x4d2/0x580 [ 185.350754][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 185.355744][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 185.361541][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 185.367597][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 185.372733][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 185.378828][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 185.384882][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 185.390513][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 185.397099][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 185.402790][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 185.409122][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 185.414691][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 185.420188][ T5780] bch2_fs_start+0x77d/0xbd0 [ 185.424994][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 185.430344][ T5780] vfs_get_tree+0xb1/0x5a0 [ 185.434994][ T5780] do_new_mount+0x71f/0x15e0 [ 185.439886][ T5780] path_mount+0x742/0x1f10 [ 185.444502][ T5780] __se_sys_mount+0x722/0x810 [ 185.449406][ T5780] __x64_sys_mount+0xe4/0x150 [ 185.454241][ T5780] x64_sys_call+0x39bf/0x3c30 [ 185.459184][ T5780] do_syscall_64+0xcd/0x1e0 [ 185.463857][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.470178][ T5780] [ 185.472621][ T5780] Uninit was created at: [ 185.477381][ T5780] ___kmalloc_large_node+0x22c/0x370 [ 185.482875][ T5780] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 185.488851][ T5780] __kmalloc_node_noprof+0xc96/0x1250 [ 185.494432][ T5780] __kvmalloc_node_noprof+0xc0/0x2d0 [ 185.499964][ T5780] __bch2_btree_node_mem_alloc+0x2be/0xa80 [ 185.505981][ T5780] bch2_fs_btree_cache_init+0x4e4/0xb50 [ 185.513468][ T5780] bch2_fs_open+0x4d3a/0x5b40 [ 185.518402][ T5780] bch2_fs_get_tree+0x983/0x22d0 [ 185.523506][ T5780] vfs_get_tree+0xb1/0x5a0 [ 185.528234][ T5780] do_new_mount+0x71f/0x15e0 [ 185.532974][ T5780] path_mount+0x742/0x1f10 [ 185.537744][ T5780] __se_sys_mount+0x722/0x810 [ 185.542654][ T5780] __x64_sys_mount+0xe4/0x150 [ 185.547615][ T5780] x64_sys_call+0x39bf/0x3c30 [ 185.552500][ T5780] do_syscall_64+0xcd/0x1e0 [ 185.557242][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.563365][ T5780] [ 185.565763][ T5780] CPU: 0 UID: 0 PID: 5780 Comm: syz-executor391 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 185.577157][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.587441][ T5780] ===================================================== [ 185.594431][ T5780] Disabling lock debugging due to kernel taint [ 185.600796][ T5780] Kernel panic - not syncing: kmsan.panic set ... [ 185.607383][ T5780] CPU: 0 UID: 0 PID: 5780 Comm: syz-executor391 Tainted: G B 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 185.620242][ T5780] Tainted: [B]=BAD_PAGE [ 185.624529][ T5780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 185.634705][ T5780] Call Trace: [ 185.638066][ T5780] [ 185.641057][ T5780] dump_stack_lvl+0x216/0x2d0 [ 185.645867][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.651793][ T5780] dump_stack+0x1e/0x24 [ 185.656091][ T5780] panic+0x4e2/0xcf0 [ 185.660115][ T5780] ? kmsan_get_metadata+0x111/0x1c0 [ 185.665473][ T5780] kmsan_report+0x2c7/0x2d0 [ 185.670146][ T5780] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 185.676118][ T5780] ? __msan_warning+0x95/0x120 [ 185.681099][ T5780] ? rw_aux_tree_set+0x4d2/0x580 [ 185.686197][ T5780] ? rw_aux_tree_insert_entry+0x6c3/0x970 [ 185.692025][ T5780] ? bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 185.698136][ T5780] ? bch2_bset_insert+0x1621/0x19f0 [ 185.703438][ T5780] ? bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 185.709539][ T5780] ? bch2_btree_insert_key_leaf+0x276/0x1050 [ 185.715642][ T5780] ? __bch2_trans_commit+0xaf5e/0xd190 [ 185.721219][ T5780] ? bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 185.727774][ T5780] ? bch2_trans_mark_dev_sb+0x858/0x10e0 [ 185.733634][ T5780] ? bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 185.740084][ T5780] ? bch2_trans_mark_dev_sbs+0x32/0x40 [ 185.745688][ T5780] ? bch2_fs_initialize+0x19bd/0x35d0 [ 185.751245][ T5780] ? bch2_fs_start+0x77d/0xbd0 [ 185.756138][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 185.761451][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 185.766190][ T5780] ? do_new_mount+0x71f/0x15e0 [ 185.771046][ T5780] ? path_mount+0x742/0x1f10 [ 185.775766][ T5780] ? __se_sys_mount+0x722/0x810 [ 185.780738][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 185.785747][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 185.790778][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 185.795598][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 185.801810][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.807772][ T5780] ? filter_irq_stacks+0x164/0x1a0 [ 185.813006][ T5780] ? stack_depot_save_flags+0x2c/0x750 [ 185.818597][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.823918][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 185.830403][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.835706][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.841630][ T5780] __msan_warning+0x95/0x120 [ 185.846368][ T5780] rw_aux_tree_set+0x4d2/0x580 [ 185.851242][ T5780] ? bset_aux_tree_verify+0x44d/0x4a0 [ 185.856774][ T5780] rw_aux_tree_insert_entry+0x6c3/0x970 [ 185.862510][ T5780] bch2_bset_fix_lookup_table+0xecc/0x13e0 [ 185.868429][ T5780] ? bch2_bkey_pack_key+0x1745/0x1860 [ 185.873944][ T5780] bch2_bset_insert+0x1621/0x19f0 [ 185.879073][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.884393][ T5780] bch2_btree_bset_insert_key+0xf4e/0x2b60 [ 185.890388][ T5780] ? __msan_memcpy+0x108/0x1c0 [ 185.895326][ T5780] bch2_btree_insert_key_leaf+0x276/0x1050 [ 185.901295][ T5780] __bch2_trans_commit+0xaf5e/0xd190 [ 185.906821][ T5780] bch2_trans_mark_metadata_bucket+0x8c7/0x2430 [ 185.913359][ T5780] ? bch2_trans_start_alloc_update_noupdate+0x179/0x12f0 [ 185.920586][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.926008][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 185.931948][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 185.937250][ T5780] ? kmsan_save_stack_with_flags+0x10/0x60 [ 185.943208][ T5780] bch2_trans_mark_dev_sb+0x858/0x10e0 [ 185.948858][ T5780] bch2_trans_mark_dev_sbs_flags+0x3e5/0x9f0 [ 185.954980][ T5780] bch2_trans_mark_dev_sbs+0x32/0x40 [ 185.960388][ T5780] bch2_fs_initialize+0x19bd/0x35d0 [ 185.965708][ T5780] ? kmsan_internal_poison_memory+0x49/0x90 [ 185.971737][ T5780] ? kmsan_slab_free+0xd0/0x140 [ 185.976746][ T5780] ? kfree+0x240/0xdb0 [ 185.981017][ T5780] ? bch2_printbuf_exit+0x9b/0xd0 [ 185.986189][ T5780] ? print_mount_opts+0x4ca/0x4f0 [ 185.991420][ T5780] ? bch2_fs_start+0x59/0xbd0 [ 185.996229][ T5780] ? bch2_fs_get_tree+0x13ea/0x22d0 [ 186.001543][ T5780] ? vfs_get_tree+0xb1/0x5a0 [ 186.006262][ T5780] ? do_new_mount+0x71f/0x15e0 [ 186.011121][ T5780] ? path_mount+0x742/0x1f10 [ 186.015854][ T5780] ? __se_sys_mount+0x722/0x810 [ 186.020827][ T5780] ? __x64_sys_mount+0xe4/0x150 [ 186.025870][ T5780] ? x64_sys_call+0x39bf/0x3c30 [ 186.031024][ T5780] ? do_syscall_64+0xcd/0x1e0 [ 186.035802][ T5780] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.042030][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.047432][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.053347][ T5780] ? kfree+0x1a7/0xdb0 [ 186.057530][ T5780] ? filter_irq_stacks+0x60/0x1a0 [ 186.062716][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.068020][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.073318][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.079234][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.084534][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.089862][ T5780] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 186.095884][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.101215][ T5780] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 186.107738][ T5780] ? llist_reverse_order+0x102/0x130 [ 186.113134][ T5780] ? kmsan_internal_unpoison_memory+0x14/0x20 [ 186.119350][ T5780] ? __closure_wake_up+0x16a/0x180 [ 186.124679][ T5780] bch2_fs_start+0x77d/0xbd0 [ 186.129433][ T5780] bch2_fs_get_tree+0x13ea/0x22d0 [ 186.134675][ T5780] vfs_get_tree+0xb1/0x5a0 [ 186.139516][ T5780] ? mount_capable+0x97/0x120 [ 186.144318][ T5780] do_new_mount+0x71f/0x15e0 [ 186.149102][ T5780] ? kmsan_get_metadata+0x13e/0x1c0 [ 186.154422][ T5780] path_mount+0x742/0x1f10 [ 186.158994][ T5780] ? user_path_at+0x374/0x3e0 [ 186.163802][ T5780] __se_sys_mount+0x722/0x810 [ 186.168582][ T5780] ? ptrace_notify+0x263/0x320 [ 186.173516][ T5780] __x64_sys_mount+0xe4/0x150 [ 186.178302][ T5780] x64_sys_call+0x39bf/0x3c30 [ 186.183113][ T5780] do_syscall_64+0xcd/0x1e0 [ 186.187796][ T5780] ? clear_bhb_loop+0x25/0x80 [ 186.192687][ T5780] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 186.198821][ T5780] RIP: 0033:0x7ff2fd68e76a [ 186.203356][ T5780] 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 b0 ff ff ff f7 d8 64 89 01 48 [ 186.223155][ T5780] RSP: 002b:00007ff2fd644088 EFLAGS: 00000282 ORIG_RAX: 00000000000000a5 [ 186.231706][ T5780] RAX: ffffffffffffffda RBX: 00007ff2fd6440a0 RCX: 00007ff2fd68e76a [ 186.239783][ T5780] RDX: 00000000200000c0 RSI: 0000000020000180 RDI: 00007ff2fd6440a0 [ 186.247963][ T5780] RBP: 0000000000000004 R08: 00007ff2fd6440e0 R09: 00000000000059e7 [ 186.256037][ T5780] R10: 0000000000000010 R11: 0000000000000282 R12: 00007ff2fd6440e0 [ 186.264108][ T5780] R13: 0000000000000010 R14: 0000000000000003 R15: 0000000001000000 [ 186.272219][ T5780] [ 186.275667][ T5780] Kernel Offset: disabled [ 186.280073][ T5780] Rebooting in 86400 seconds..