./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor974982310 <...> Warning: Permanently added '10.128.0.234' (ED25519) to the list of known hosts. execve("./syz-executor974982310", ["./syz-executor974982310"], 0x7ffcc396ce10 /* 10 vars */) = 0 brk(NULL) = 0x55558ecbc000 brk(0x55558ecbcd00) = 0x55558ecbcd00 arch_prctl(ARCH_SET_FS, 0x55558ecbc380) = 0 set_tid_address(0x55558ecbc650) = 5185 set_robust_list(0x55558ecbc660, 24) = 0 rseq(0x55558ecbcca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor974982310", 4096) = 27 getrandom("\x3c\x62\x25\xb4\x11\x22\xc8\x7d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558ecbcd00 brk(0x55558ecddd00) = 0x55558ecddd00 brk(0x55558ecde000) = 0x55558ecde000 mprotect(0x7f5af4199000, 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 mkdir("./syzkaller.pDh4fY", 0700) = 0 chmod("./syzkaller.pDh4fY", 0777) = 0 chdir("./syzkaller.pDh4fY") = 0 mkdir("./0", 0777) = 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, child_tidptr=0x55558ecbc650) = 5186 ./strace-static-x86_64: Process 5186 attached [pid 5186] set_robust_list(0x55558ecbc660, 24) = 0 [pid 5186] chdir("./0") = 0 [pid 5186] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5186] setpgid(0, 0) = 0 [pid 5186] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5186] write(3, "1000", 4) = 4 [pid 5186] close(3) = 0 [pid 5186] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5186] write(1, "executing program\n", 18executing program ) = 18 [pid 5186] memfd_create("syzkaller", 0) = 3 [pid 5186] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f5aebc00000 [pid 5186] 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 5186] munmap(0x7f5aebc00000, 138412032) = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5186] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5186] close(3) = 0 [pid 5186] close(4) = 0 [pid 5186] mkdir("./file0", 0777) = 0 [pid 5186] mount("/dev/loop0", "./file0", "jfs", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_NODIRATIME, "errors=remount-ro,iocharset=koi8-u,uid=0x0000000000000000,discard=0x0000000000000003,iocharset=cp860"...) = 0 [pid 5186] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [ 189.980972][ T5186] loop0: detected capacity change from 0 to 32768 [pid 5186] chdir("./file0") = 0 [pid 5186] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5186] open_tree(AT_FDCWD, "", OPEN_TREE_CLOEXEC|AT_EMPTY_PATH) = 4 [pid 5186] unlinkat(4, "./file0/file0", 0) = -1 EIO (Input/output error) [pid 5186] setxattr("./file0/file0", "trusted.overlay.nlink", NULL, 0, 0) = 0 [pid 5186] exit_group(0) = ? [pid 5186] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5186, si_uid=0, si_status=0, si_utime=6 /* 0.06 s */, si_stime=145 /* 1.45 s */} --- umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [ 190.055277][ T5186] find_entry called with index = 0 [ 190.061453][ T5186] read_mapping_page failed! [ 190.066226][ T5186] ERROR: (device loop0): txAbort: [ 190.066226][ T5186] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55558ecbd6f0 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}, AT_SYMLINK_NOFOLLOW) = 0 unlink("./0/binderfs") = 0 [ 242.141419][ T5185] jfs_flush_journal: synclist not empty [ 242.147197][ T5185] ===================================================== [ 242.154669][ T5185] BUG: KMSAN: uninit-value in hex_dump_to_buffer+0x888/0x1100 [ 242.162547][ T5185] hex_dump_to_buffer+0x888/0x1100 [ 242.167906][ T5185] print_hex_dump+0x13d/0x3e0 [ 242.172896][ T5185] jfs_flush_journal+0x141b/0x15e0 [ 242.178219][ T5185] jfs_umount+0x1e5/0x720 [ 242.182821][ T5185] jfs_put_super+0xf1/0x390 [ 242.187538][ T5185] generic_shutdown_super+0x197/0x4c0 [ 242.193204][ T5185] kill_block_super+0x42/0xd0 [ 242.198107][ T5185] deactivate_locked_super+0xe0/0x3f0 [ 242.203809][ T5185] deactivate_super+0x14f/0x160 [ 242.208847][ T5185] cleanup_mnt+0x6bb/0x730 [ 242.213597][ T5185] __cleanup_mnt+0x22/0x30 [ 242.218229][ T5185] task_work_run+0x268/0x310 [ 242.223101][ T5185] ptrace_notify+0x304/0x320 [ 242.227918][ T5185] syscall_exit_work+0x14e/0x3e0 [ 242.233150][ T5185] syscall_exit_to_user_mode+0x13b/0x170 [ 242.239041][ T5185] do_syscall_64+0xda/0x1e0 [ 242.243834][ T5185] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 242.250149][ T5185] [ 242.252707][ T5185] Uninit was created at: [ 242.257174][ T5185] kmem_cache_alloc_noprof+0x637/0xb20 [ 242.262981][ T5185] mempool_alloc_slab+0x36/0x50 [ 242.268011][ T5185] mempool_alloc_noprof+0xfa/0x530 [ 242.273433][ T5185] __get_metapage+0x9c2/0x1630 [ 242.278379][ T5185] diWrite+0x5ba/0x1f00 [ 242.282814][ T5185] txCommit+0xdb8/0x8cc0 [ 242.287288][ T5185] jfs_unlink+0xbbd/0x15a0 [ 242.291965][ T5185] vfs_unlink+0x676/0xa90 [ 242.296539][ T5185] do_unlinkat+0x823/0xe10 [ 242.301250][ T5185] __x64_sys_unlinkat+0x17a/0x220 [ 242.306539][ T5185] x64_sys_call+0x2c7a/0x3ba0 [ 242.311511][ T5185] do_syscall_64+0xcd/0x1e0 [ 242.316224][ T5185] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 242.322504][ T5185] [ 242.324943][ T5185] CPU: 0 UID: 0 PID: 5185 Comm: syz-executor974 Not tainted 6.12.0-rc1-syzkaller-00330-gfc20a3e57247 #0 [ 242.336400][ T5185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 242.346788][ T5185] ===================================================== [ 242.354015][ T5185] Disabling lock debugging due to kernel taint [ 242.360291][ T5185] Kernel panic - not syncing: kmsan.panic set ... [ 242.366811][ T5185] CPU: 0 UID: 0 PID: 5185 Comm: syz-executor974 Tainted: G B 6.12.0-rc1-syzkaller-00330-gfc20a3e57247 #0 [ 242.379566][ T5185] Tainted: [B]=BAD_PAGE [ 242.383788][ T5185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 242.393944][ T5185] Call Trace: [ 242.397303][ T5185] [ 242.400310][ T5185] dump_stack_lvl+0x216/0x2d0 [ 242.405139][ T5185] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 242.411105][ T5185] dump_stack+0x1e/0x30 [ 242.415461][ T5185] panic+0x4e2/0xcf0 [ 242.419493][ T5185] ? kmsan_get_metadata+0x101/0x1c0 [ 242.424839][ T5185] kmsan_report+0x2c7/0x2d0 [ 242.429508][ T5185] ? this_cpu_in_panic+0x5e/0xa0 [ 242.434583][ T5185] ? _prb_read_valid+0x216f/0x21c0 [ 242.439826][ T5185] ? __msan_warning+0x95/0x120 [ 242.444737][ T5185] ? hex_dump_to_buffer+0x888/0x1100 [ 242.450183][ T5185] ? print_hex_dump+0x13d/0x3e0 [ 242.455185][ T5185] ? jfs_flush_journal+0x141b/0x15e0 [ 242.460606][ T5185] ? jfs_umount+0x1e5/0x720 [ 242.465233][ T5185] ? jfs_put_super+0xf1/0x390 [ 242.470058][ T5185] ? generic_shutdown_super+0x197/0x4c0 [ 242.475743][ T5185] ? kill_block_super+0x42/0xd0 [ 242.480735][ T5185] ? deactivate_locked_super+0xe0/0x3f0 [ 242.486415][ T5185] ? deactivate_super+0x14f/0x160 [ 242.491572][ T5185] ? cleanup_mnt+0x6bb/0x730 [ 242.496308][ T5185] ? __cleanup_mnt+0x22/0x30 [ 242.501058][ T5185] ? task_work_run+0x268/0x310 [ 242.505956][ T5185] ? ptrace_notify+0x304/0x320 [ 242.510858][ T5185] ? syscall_exit_work+0x14e/0x3e0 [ 242.516110][ T5185] ? syscall_exit_to_user_mode+0x13b/0x170 [ 242.522057][ T5185] ? do_syscall_64+0xda/0x1e0 [ 242.526872][ T5185] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 242.533105][ T5185] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 242.539683][ T5185] ? kmsan_get_metadata+0x13e/0x1c0 [ 242.545176][ T5185] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 242.551131][ T5185] ? kmsan_get_metadata+0x13e/0x1c0 [ 242.556475][ T5185] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 242.562981][ T5185] ? kmsan_get_metadata+0x13e/0x1c0 [ 242.568319][ T5185] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 242.574259][ T5185] ? kmsan_get_metadata+0x13e/0x1c0 [ 242.579577][ T5185] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 242.585543][ T5185] __msan_warning+0x95/0x120 [ 242.590276][ T5185] hex_dump_to_buffer+0x888/0x1100 [ 242.595562][ T5185] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 242.602058][ T5185] print_hex_dump+0x13d/0x3e0 [ 242.606893][ T5185] ? kmsan_get_metadata+0x13e/0x1c0 [ 242.612209][ T5185] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 242.618144][ T5185] jfs_flush_journal+0x141b/0x15e0 [ 242.623392][ T5185] ? dquot_disable+0x1e36/0x2aa0 [ 242.628514][ T5185] jfs_umount+0x1e5/0x720 [ 242.632998][ T5185] jfs_put_super+0xf1/0x390 [ 242.637658][ T5185] ? __pfx_jfs_put_super+0x10/0x10 [ 242.642951][ T5185] ? __pfx_jfs_put_super+0x10/0x10 [ 242.648210][ T5185] generic_shutdown_super+0x197/0x4c0 [ 242.653729][ T5185] kill_block_super+0x42/0xd0 [ 242.658547][ T5185] ? __pfx_kill_block_super+0x10/0x10 [ 242.664058][ T5185] deactivate_locked_super+0xe0/0x3f0 [ 242.669575][ T5185] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 242.675519][ T5185] deactivate_super+0x14f/0x160 [ 242.680504][ T5185] cleanup_mnt+0x6bb/0x730 [ 242.685074][ T5185] ? __pfx___cleanup_mnt+0x10/0x10 [ 242.690379][ T5185] __cleanup_mnt+0x22/0x30 [ 242.694973][ T5185] task_work_run+0x268/0x310 [ 242.699687][ T5185] ptrace_notify+0x304/0x320 [ 242.704409][ T5185] ? kmsan_get_metadata+0x13e/0x1c0 [ 242.709749][ T5185] syscall_exit_work+0x14e/0x3e0 [ 242.714834][ T5185] syscall_exit_to_user_mode+0x13b/0x170 [ 242.720607][ T5185] do_syscall_64+0xda/0x1e0 [ 242.725259][ T5185] ? clear_bhb_loop+0x25/0x80 [ 242.730068][ T5185] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 242.736157][ T5185] RIP: 0033:0x7f5af4120447 [ 242.740679][ T5185] Code: 07 00 48 83 c4 08 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 [ 242.760428][ T5185] RSP: 002b:00007ffeefe9e178 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 242.768992][ T5185] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f5af4120447 [ 242.777074][ T5185] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffeefe9e230 [ 242.785148][ T5185] RBP: 00007ffeefe9e230 R08: 0000000000000000 R09: 0000000000000000 [ 242.793238][ T5185] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffeefe9f2a0 [ 242.801322][ T5185] R13: 000055558ecbd6c0 R14: 431bde82d7b634db R15: 00007ffeefe9f2c0 [ 242.809423][ T5185] [ 242.813002][ T5185] Kernel Offset: disabled [ 242.817448][ T5185] Rebooting in 86400 seconds..