./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor740388752 <...> Warning: Permanently added '10.128.0.112' (ED25519) to the list of known hosts. execve("./syz-executor740388752", ["./syz-executor740388752"], 0x7ffe056e2ce0 /* 10 vars */) = 0 brk(NULL) = 0x55557b4be000 brk(0x55557b4bed00) = 0x55557b4bed00 arch_prctl(ARCH_SET_FS, 0x55557b4be380) = 0 set_tid_address(0x55557b4be650) = 5822 set_robust_list(0x55557b4be660, 24) = 0 rseq(0x55557b4beca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor740388752", 4096) = 27 getrandom("\xa0\x61\xa5\x81\x85\x65\xde\x9b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55557b4bed00 brk(0x55557b4dfd00) = 0x55557b4dfd00 brk(0x55557b4e0000) = 0x55557b4e0000 mprotect(0x7f1a02265000, 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.2vRKt8", 0700) = 0 chmod("./syzkaller.2vRKt8", 0777) = 0 chdir("./syzkaller.2vRKt8") = 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./strace-static-x86_64: Process 5824 attached [pid 5824] set_robust_list(0x55557b4be660, 24) = 0 [pid 5824] chdir("./0" [pid 5822] <... clone resumed>, child_tidptr=0x55557b4be650) = 5824 [pid 5824] <... chdir resumed>) = 0 [pid 5824] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5824] setpgid(0, 0) = 0 [pid 5824] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5824] write(3, "1000", 4) = 4 [pid 5824] close(3) = 0 [pid 5824] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5824] write(1, "executing program\n", 18executing program ) = 18 [pid 5824] memfd_create("syzkaller", 0) = 3 [pid 5824] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f19f9c00000 [pid 5824] 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 5824] munmap(0x7f19f9c00000, 138412032) = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5824] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5824] close(3) = 0 [pid 5824] close(4) = 0 [pid 5824] mkdir("./file1", 0777) = 0 [pid 5824] mount("/dev/loop0", "./file1", "jfs", MS_DIRSYNC|MS_POSIXACL, "") = 0 [pid 5824] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5824] chdir("./file1") = 0 [pid 5824] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5824] mount(".", "./file0/../file0", NULL, MS_NOEXEC|MS_DIRSYNC|MS_BIND|MS_SHARED|MS_STRICTATIME, NULL) = 0 [pid 5824] rename("./file1", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa") = 0 [ 60.393210][ T5824] loop0: detected capacity change from 0 to 32768 [ 60.453593][ T5824] syz-executor740: attempt to access beyond end of device [ 60.453593][ T5824] loop0: rw=1, sector=4680032, nr_sectors = 8 limit=32768 [ 60.468362][ T5824] metapage_write_end_io: I/O error [ 60.473916][ T5824] ERROR: (device loop0): release_metapage: metapage_write_one() failed [ 60.473916][ T5824] [ 60.485774][ T5824] ERROR: (device loop0): remounting filesystem as read-only [ 60.493877][ T115] blkno = 8ed2c, nblocks = 1 [ 60.494604][ T5824] blkno = 8ed2c, nblocks = 1 [pid 5824] mkdir("./file1", 0777) = -1 EIO (Input/output error) [pid 5824] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5824] +++ killed by SIGSEGV +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5824, si_uid=0, si_status=SIGSEGV, si_utime=2 /* 0.02 s */, si_stime=22 /* 0.22 s */} --- [ 60.498759][ T115] ERROR: (device loop0): dbUpdatePMap: blocks are outside the map [ 60.498759][ T115] [ 60.503340][ T5824] ERROR: (device loop0): dbUpdatePMap: blocks are outside the map [ 60.503340][ T5824] [ 60.525530][ T5824] blkno = 8ed2c, nblocks = 1 [ 60.530187][ T5824] ERROR: (device loop0): dbUpdatePMap: blocks are outside the map [ 60.530187][ T5824] [ 60.541766][ T5824] ERROR: (device loop0): dbAlloc: the hint is outside the map [ 60.541766][ T5824] restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 getdents64(3, 0x55557b4bf6f0 /* 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 umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) newfstatat(AT_FDCWD, "./0/file1", {st_mode=S_IFDIR|0755, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) openat(AT_FDCWD, "./0/file1", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [ 60.737531][ T5822] ------------[ cut here ]------------ [ 60.743160][ T5822] UBSAN: array-index-out-of-bounds in fs/jfs/jfs_dtree.c:3096:10 [ 60.750961][ T5822] index 237 is out of range for type 'struct dtslot[128]' [ 60.758190][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor740 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 60.769283][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 60.779384][ T5822] Call Trace: [ 60.782659][ T5822] [ 60.785578][ T5822] dump_stack_lvl+0x241/0x360 [ 60.790251][ T5822] ? __pfx_dump_stack_lvl+0x10/0x10 [ 60.795440][ T5822] ? __pfx__printk+0x10/0x10 [ 60.800029][ T5822] ? do_read_cache_folio+0x4e7/0x5b0 [ 60.805317][ T5822] ? folio_unlock+0x10e/0x170 [ 60.809982][ T5822] __ubsan_handle_out_of_bounds+0x121/0x150 [ 60.815887][ T5822] dtReadFirst+0x622/0xc50 [ 60.820405][ T5822] jfs_readdir+0x9aa/0x3c50 [ 60.824917][ T5822] ? __pfx_jfs_readdir+0x10/0x10 [ 60.829891][ T5822] ? __pfx_lock_acquire+0x10/0x10 [ 60.834930][ T5822] ? down_write+0x18c/0x220 [ 60.839428][ T5822] ? __pfx_down_write+0x10/0x10 [ 60.844269][ T5822] ? __pfx_jfs_readdir+0x10/0x10 [ 60.849200][ T5822] wrap_directory_iterator+0x91/0xd0 [ 60.854477][ T5822] iterate_dir+0x571/0x800 [ 60.858889][ T5822] __se_sys_getdents64+0x1e2/0x4b0 [ 60.863986][ T5822] ? _raw_spin_unlock_irq+0x2e/0x50 [ 60.869175][ T5822] ? __pfx___se_sys_getdents64+0x10/0x10 [ 60.874806][ T5822] ? __pfx_filldir64+0x10/0x10 [ 60.879569][ T5822] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 60.885886][ T5822] ? exc_page_fault+0x590/0x8b0 [ 60.890913][ T5822] do_syscall_64+0xf3/0x230 [ 60.895411][ T5822] ? clear_bhb_loop+0x35/0x90 [ 60.900074][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 60.905980][ T5822] RIP: 0033:0x7f1a02212fa3 [ 60.910383][ T5822] Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 a2 48 fb ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 [ 60.929971][ T5822] RSP: 002b:00007fffd5e0be18 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 [ 60.938368][ T5822] RAX: ffffffffffffffda RBX: 000055557b4c7730 RCX: 00007f1a02212fa3 [ 60.946323][ T5822] RDX: 0000000000008000 RSI: 000055557b4c7730 RDI: 0000000000000004 [ 60.954278][ T5822] RBP: 000055557b4c7704 R08: 0000000000000000 R09: 0000000000000000 [ 60.962236][ T5822] R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb8 [ 60.970202][ T5822] R13: 0000000000000010 R14: 000055557b4c7700 R15: 00007fffd5e0e090 [ 60.978166][ T5822] [ 60.981565][ T5822] ---[ end trace ]--- [ 60.985624][ T5822] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 60.992813][ T5822] CPU: 0 UID: 0 PID: 5822 Comm: syz-executor740 Not tainted 6.13.0-rc4-syzkaller-00110-g4099a71718b0 #0 [ 61.003906][ T5822] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 61.013951][ T5822] Call Trace: [ 61.017223][ T5822] [ 61.020145][ T5822] dump_stack_lvl+0x241/0x360 [ 61.024820][ T5822] ? __pfx_dump_stack_lvl+0x10/0x10 [ 61.030009][ T5822] ? __pfx__printk+0x10/0x10 [ 61.034595][ T5822] ? lockdep_hardirqs_on+0x99/0x150 [ 61.039788][ T5822] ? vscnprintf+0x5d/0x90 [ 61.044111][ T5822] panic+0x349/0x880 [ 61.048004][ T5822] ? check_panic_on_warn+0x21/0xb0 [ 61.053111][ T5822] ? __pfx_panic+0x10/0x10 [ 61.057516][ T5822] ? _printk+0xd5/0x120 [ 61.061664][ T5822] ? __pfx__printk+0x10/0x10 [ 61.066245][ T5822] ? do_read_cache_folio+0x4e7/0x5b0 [ 61.071525][ T5822] check_panic_on_warn+0x86/0xb0 [ 61.076454][ T5822] __ubsan_handle_out_of_bounds+0x141/0x150 [ 61.082347][ T5822] dtReadFirst+0x622/0xc50 [ 61.086761][ T5822] jfs_readdir+0x9aa/0x3c50 [ 61.091276][ T5822] ? __pfx_jfs_readdir+0x10/0x10 [ 61.096208][ T5822] ? __pfx_lock_acquire+0x10/0x10 [ 61.101236][ T5822] ? down_write+0x18c/0x220 [ 61.105727][ T5822] ? __pfx_down_write+0x10/0x10 [ 61.110571][ T5822] ? __pfx_jfs_readdir+0x10/0x10 [ 61.115501][ T5822] wrap_directory_iterator+0x91/0xd0 [ 61.120782][ T5822] iterate_dir+0x571/0x800 [ 61.125194][ T5822] __se_sys_getdents64+0x1e2/0x4b0 [ 61.130299][ T5822] ? _raw_spin_unlock_irq+0x2e/0x50 [ 61.135493][ T5822] ? __pfx___se_sys_getdents64+0x10/0x10 [ 61.141117][ T5822] ? __pfx_filldir64+0x10/0x10 [ 61.145875][ T5822] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 61.152193][ T5822] ? exc_page_fault+0x590/0x8b0 [ 61.157042][ T5822] do_syscall_64+0xf3/0x230 [ 61.161541][ T5822] ? clear_bhb_loop+0x35/0x90 [ 61.166206][ T5822] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 61.172095][ T5822] RIP: 0033:0x7f1a02212fa3 [ 61.176501][ T5822] Code: c1 66 0f 1f 44 00 00 48 83 c4 08 48 89 ef 5b 5d e9 a2 48 fb ff 66 90 b8 ff ff ff 7f 48 39 c2 48 0f 47 d0 b8 d9 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 05 c3 0f 1f 40 00 48 c7 c2 b8 ff ff ff f7 d8 [ 61.196099][ T5822] RSP: 002b:00007fffd5e0be18 EFLAGS: 00000293 ORIG_RAX: 00000000000000d9 [ 61.204508][ T5822] RAX: ffffffffffffffda RBX: 000055557b4c7730 RCX: 00007f1a02212fa3 [ 61.212467][ T5822] RDX: 0000000000008000 RSI: 000055557b4c7730 RDI: 0000000000000004 [ 61.220428][ T5822] RBP: 000055557b4c7704 R08: 0000000000000000 R09: 0000000000000000 [ 61.228390][ T5822] R10: 0000000000001000 R11: 0000000000000293 R12: ffffffffffffffb8 [ 61.236350][ T5822] R13: 0000000000000010 R14: 000055557b4c7700 R15: 00007fffd5e0e090 [ 61.244325][ T5822] [ 61.247602][ T5822] Kernel Offset: disabled [ 61.251956][ T5822] Rebooting in 86400 seconds..