./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2714588463 <...> Warning: Permanently added '10.128.1.80' (ED25519) to the list of known hosts. execve("./syz-executor2714588463", ["./syz-executor2714588463"], 0x7ffeef917430 /* 10 vars */) = 0 brk(NULL) = 0x5555684c8000 brk(0x5555684c8e00) = 0x5555684c8e00 arch_prctl(ARCH_SET_FS, 0x5555684c8480) = 0 set_tid_address(0x5555684c8750) = 5795 set_robust_list(0x5555684c8760, 24) = 0 rseq(0x5555684c8da0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2714588463", 4096) = 28 getrandom("\x6d\x7f\xcb\x41\x08\xf1\xac\x5d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555684c8e00 brk(0x5555684e9e00) = 0x5555684e9e00 brk(0x5555684ea000) = 0x5555684ea000 mprotect(0x7f8e850c7000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5796 attached , child_tidptr=0x5555684c8750) = 5796 [pid 5795] openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "10000000000", 11) = 11 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5795] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5795] openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory) [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "0", 1) = 1 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC [pid 5796] set_robust_list(0x5555684c8760, 24 [pid 5795] <... openat resumed>) = -1 ENOENT (No such file or directory) [pid 5795] openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 [pid 5796] <... set_robust_list resumed>) = 0 [pid 5795] write(3, "100", 3) = 3 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "0", 1) = 1 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "0", 1) = 1 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "7 4 1 3", 7) = 7 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1", 1) = 1 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "1", 1) = 1 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "0", 1) = 1 [pid 5795] close(3) = 0 [pid 5795] openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 [pid 5795] write(3, "5796", 4) = 4 [pid 5795] close(3) = 0 [pid 5795] kill(5796, SIGKILL) = 0 [pid 5796] +++ killed by SIGKILL +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5796, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=0} --- rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f8e85018da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f8e850211b0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f8e85018da0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f8e850211b0}, NULL, 8) = 0 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 5797 attached , child_tidptr=0x5555684c8750) = 5797 [pid 5797] set_robust_list(0x5555684c8760, 24) = 0 [pid 5797] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5797] setpgid(0, 0) = 0 [pid 5797] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5797] write(3, "1000", 4) = 4 [pid 5797] close(3executing program ) = 0 [pid 5797] write(1, "executing program\n", 18) = 18 [pid 5797] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5797] setsockopt(3, SOL_TCP, TCP_CONGESTION, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5797] sched_setscheduler(0, SCHED_FIFO, NULL) = -1 EINVAL (Invalid argument) [pid 5797] memfd_create("syzkaller", 0) = 4 [pid 5797] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8e7cc00000 [pid 5797] write(4, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\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 5797] munmap(0x7f8e7cc00000, 138412032) = 0 [pid 5797] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 5797] ioctl(5, LOOP_SET_FD, 4) = 0 [pid 5797] close(4) = 0 [pid 5797] close(5) = 0 [pid 5797] mkdir("./file1", 0777) = 0 [ 334.714783][ T5797] loop0: detected capacity change from 0 to 32768 [ 334.832778][ T5797] bcachefs (loop0): starting version 1.7: mi_btree_bitmap opts=metadata_checksum=none,data_checksum=crc64,norecovery,reconstruct_alloc [ 334.847729][ T5797] bcachefs (loop0): recovering from clean shutdown, journal seq 10 [ 334.857375][ T5797] bcachefs (loop0): Version upgrade required: [ 334.857375][ T5797] Version upgrade from 0.24: unwritten_extents to 1.7: mi_btree_bitmap incomplete [ 334.857375][ T5797] Doing incompatible version upgrade from 0.24: unwritten_extents to 1.13: inode_has_child_snapshots [ 334.857375][ T5797] 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 [ 334.933865][ T5797] bcachefs (loop0): dropping and reconstructing all alloc info [ 334.982897][ T5797] bcachefs (loop0): accounting_read... done [ 334.989572][ T5797] bcachefs (loop0): alloc_read... done [ 334.995567][ T5797] bcachefs (loop0): stripes_read... done [ 335.001712][ T5797] bcachefs (loop0): snapshots_read... done [pid 5797] mount("/dev/loop0", "./file1", "bcachefs", 0, "\x64\x61\x74\x61\x5f\x63\x68\x65\x63\x6b\x73\x75\x6d\x3d\x63\x72\x63\x36\x34\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\x73\x68\x61\x72\x64\x5f\x69\x6e\x6f\x05\x65\x5f\x6e\x75\x6d\x62\x65\x72\x73\x2c\x6a\x6f\x75\x72\x6e\x61\x6c\x5f\x74\x72\x61\x6e\x73\x61\x63\x74\x69\x6f\x6e\x5f\x6e\x61\x6d"...) = 0 [pid 5797] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 4 [pid 5797] chdir("./file1") = 0 [pid 5797] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 5 [pid 5797] ioctl(5, LOOP_CLR_FD) = 0 [pid 5797] close(5) = 0 [pid 5797] setxattr("./file0", "user.incfs.size", NULL, 0, 0) = 0 [ 335.008071][ T5797] bcachefs (loop0): check_allocations... done [ 335.089860][ T5797] bcachefs (loop0): going read-write [ 335.107573][ T5797] bcachefs (loop0): done starting filesystem [pid 5797] setxattr("./file0", "user.incfs.size", NULL, 0, 0) = 0 [pid 5797] exit_group(0) = ? [pid 5797] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5797, si_uid=0, si_status=0, si_utime=4 /* 0.04 s */, si_stime=77 /* 0.77 s */} --- 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, child_tidptr=0x5555684c8750) = 5812 ./strace-static-x86_64: Process 5812 attached [pid 5812] set_robust_list(0x5555684c8760, 24) = 0 [pid 5812] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5812] setpgid(0, 0) = 0 [pid 5812] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5812] write(3, "1000", 4) = 4 executing program [pid 5812] close(3) = 0 [pid 5812] write(1, "executing program\n", 18) = 18 [pid 5812] socket(AF_INET6, SOCK_STREAM, IPPROTO_IP) = 3 [pid 5812] setsockopt(3, SOL_TCP, TCP_CONGESTION, NULL, 0) = -1 EINVAL (Invalid argument) [pid 5812] sched_setscheduler(0, SCHED_FIFO, NULL) = -1 EINVAL (Invalid argument) [pid 5812] memfd_create("syzkaller", 0) = 4 [pid 5812] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8e7cc00000 [ 335.263560][ T5809] ===================================================== [ 335.271017][ T5809] BUG: KMSAN: uninit-value in bch2_xattr_validate+0x3bb/0x720 [ 335.278720][ T5809] bch2_xattr_validate+0x3bb/0x720 [ 335.284506][ T5809] bch2_bkey_val_validate+0x2b5/0x440 [ 335.290116][ T5809] validate_bset_keys+0x1531/0x2080 [ 335.295759][ T5809] validate_bset_for_write+0x142/0x290 [ 335.301586][ T5809] __bch2_btree_node_write+0x53df/0x6830 [ 335.307453][ T5809] bch2_btree_node_write+0xa5/0x2e0 [ 335.312999][ T5809] __btree_node_flush+0x606/0x680 [ 335.318213][ T5809] bch2_btree_node_flush1+0x38/0x60 [ 335.323746][ T5809] journal_flush_pins+0xce6/0x1780 [ 335.329050][ T5809] __bch2_journal_reclaim+0xda8/0x1670 [ 335.334868][ T5809] bch2_journal_reclaim_thread+0x18e/0x760 [ 335.340992][ T5809] kthread+0x3e2/0x540 [ 335.345236][ T5809] ret_from_fork+0x6d/0x90 [ 335.349845][ T5809] ret_from_fork_asm+0x1a/0x30 [ 335.354955][ T5809] [ 335.357442][ T5809] Uninit was stored to memory at: [ 335.362903][ T5809] bch2_sort_keys_keep_unwritten_whiteouts+0x12d5/0x19d0 [ 335.370182][ T5809] __bch2_btree_node_write+0x3ae8/0x6830 [ 335.376211][ T5809] bch2_btree_node_write+0xa5/0x2e0 [ 335.381763][ T5809] __btree_node_flush+0x606/0x680 [ 335.386980][ T5809] bch2_btree_node_flush1+0x38/0x60 [ 335.392658][ T5809] journal_flush_pins+0xce6/0x1780 [ 335.397957][ T5809] __bch2_journal_reclaim+0xda8/0x1670 [ 335.403821][ T5809] bch2_journal_reclaim_thread+0x18e/0x760 [ 335.409819][ T5809] kthread+0x3e2/0x540 [ 335.414247][ T5809] ret_from_fork+0x6d/0x90 [ 335.418865][ T5809] ret_from_fork_asm+0x1a/0x30 [ 335.424069][ T5809] [ 335.426498][ T5809] Uninit was created at: [ 335.431193][ T5809] ___kmalloc_large_node+0x22c/0x370 [ 335.436707][ T5809] __kmalloc_large_node_noprof+0x3f/0x1e0 [ 335.442875][ T5809] __kmalloc_node_noprof+0xc96/0x1250 [ 335.448471][ T5809] __kvmalloc_node_noprof+0xc0/0x2d0 [ 335.454118][ T5809] btree_node_sort+0x78a/0x1d30 [ 335.459210][ T5809] bch2_btree_post_write_cleanup+0x1b0/0xf20 [ 335.465576][ T5809] bch2_btree_node_write+0x21c/0x2e0 [ 335.471186][ T5809] __btree_node_flush+0x606/0x680 [ 335.476424][ T5809] bch2_btree_node_flush0+0x35/0x60 [ 335.482077][ T5809] journal_flush_pins+0xce6/0x1780 [ 335.487386][ T5809] __bch2_journal_reclaim+0xda8/0x1670 [ 335.493407][ T5809] bch2_journal_reclaim_thread+0x18e/0x760 [ 335.499405][ T5809] kthread+0x3e2/0x540 [ 335.503887][ T5809] ret_from_fork+0x6d/0x90 [ 335.508495][ T5809] ret_from_fork_asm+0x1a/0x30 [ 335.513722][ T5809] [ 335.516179][ T5809] CPU: 0 UID: 0 PID: 5809 Comm: bch-reclaim/loo Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 335.527668][ T5809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 335.538085][ T5809] ===================================================== [ 335.545315][ T5809] Disabling lock debugging due to kernel taint [ 335.551795][ T5809] Kernel panic - not syncing: kmsan.panic set ... [ 335.558386][ T5809] CPU: 0 UID: 0 PID: 5809 Comm: bch-reclaim/loo Tainted: G B 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 335.571219][ T5809] Tainted: [B]=BAD_PAGE [ 335.575501][ T5809] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 335.585734][ T5809] Call Trace: [ 335.589149][ T5809] [ 335.592200][ T5809] dump_stack_lvl+0x216/0x2d0 [ 335.597110][ T5809] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 335.603135][ T5809] dump_stack+0x1e/0x24 [ 335.607511][ T5809] panic+0x4e2/0xcf0 [ 335.611623][ T5809] ? kmsan_get_metadata+0x111/0x1c0 [ 335.617041][ T5809] kmsan_report+0x2c7/0x2d0 [ 335.621732][ T5809] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 335.627759][ T5809] ? kmsan_get_metadata+0x13e/0x1c0 [ 335.633154][ T5809] ? __msan_warning+0x95/0x120 [ 335.638158][ T5809] ? bch2_xattr_validate+0x3bb/0x720 [ 335.643689][ T5809] ? bch2_bkey_val_validate+0x2b5/0x440 [ 335.649475][ T5809] ? validate_bset_keys+0x1531/0x2080 [ 335.655089][ T5809] ? validate_bset_for_write+0x142/0x290 [ 335.660974][ T5809] ? __bch2_btree_node_write+0x53df/0x6830 [ 335.667023][ T5809] ? bch2_btree_node_write+0xa5/0x2e0 [ 335.672659][ T5809] ? __btree_node_flush+0x606/0x680 [ 335.678069][ T5809] ? bch2_btree_node_flush1+0x38/0x60 [ 335.683661][ T5809] ? journal_flush_pins+0xce6/0x1780 [ 335.689149][ T5809] ? __bch2_journal_reclaim+0xda8/0x1670 [ 335.694994][ T5809] ? bch2_journal_reclaim_thread+0x18e/0x760 [ 335.701192][ T5809] ? kthread+0x3e2/0x540 [ 335.705635][ T5809] ? ret_from_fork+0x6d/0x90 [ 335.710429][ T5809] ? ret_from_fork_asm+0x1a/0x30 [ 335.715611][ T5809] ? kmsan_get_metadata+0x13e/0x1c0 [ 335.721021][ T5809] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 335.727039][ T5809] ? kmsan_get_metadata+0x13e/0x1c0 [ 335.732474][ T5809] ? kmsan_get_metadata+0x13e/0x1c0 [ 335.737882][ T5809] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 335.743900][ T5809] ? kmsan_get_metadata+0x13e/0x1c0 [ 335.749298][ T5809] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 335.755314][ T5809] ? kmsan_get_metadata+0x13e/0x1c0 [ 335.760704][ T5809] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 335.766712][ T5809] ? kmsan_get_metadata+0x13e/0x1c0 [ 335.772116][ T5809] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 335.778141][ T5809] __msan_warning+0x95/0x120 [ 335.782981][ T5809] bch2_xattr_validate+0x3bb/0x720 [ 335.788345][ T5809] ? __pfx_bch2_xattr_validate+0x10/0x10 [ 335.794213][ T5809] bch2_bkey_val_validate+0x2b5/0x440 [ 335.799849][ T5809] validate_bset_keys+0x1531/0x2080 [ 335.805348][ T5809] validate_bset_for_write+0x142/0x290 [ 335.811064][ T5809] __bch2_btree_node_write+0x53df/0x6830 [ 335.816963][ T5809] ? __update_load_avg_se+0x933/0x11a0 [ 335.822721][ T5809] bch2_btree_node_write+0xa5/0x2e0 [ 335.828166][ T5809] __btree_node_flush+0x606/0x680 [ 335.833453][ T5809] ? __btree_node_flush+0xd3/0x680 [ 335.838799][ T5809] ? __pfx_bch2_btree_node_flush1+0x10/0x10 [ 335.844931][ T5809] bch2_btree_node_flush1+0x38/0x60 [ 335.850363][ T5809] journal_flush_pins+0xce6/0x1780 [ 335.855719][ T5809] __bch2_journal_reclaim+0xda8/0x1670 [ 335.861393][ T5809] ? __try_to_del_timer_sync+0x3d3/0x420 [ 335.867302][ T5809] bch2_journal_reclaim_thread+0x18e/0x760 [ 335.873348][ T5809] kthread+0x3e2/0x540 [ 335.877619][ T5809] ? __pfx_bch2_journal_reclaim_thread+0x10/0x10 [ 335.884192][ T5809] ? __pfx_kthread+0x10/0x10 [ 335.889008][ T5809] ret_from_fork+0x6d/0x90 [ 335.893649][ T5809] ? __pfx_kthread+0x10/0x10 [ 335.898441][ T5809] ret_from_fork_asm+0x1a/0x30 [ 335.903458][ T5809] [ 335.906919][ T5809] Kernel Offset: disabled [ 335.911322][ T5809] Rebooting in 86400 seconds..