./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor707488424 <...> Warning: Permanently added '10.128.0.33' (ED25519) to the list of known hosts. execve("./syz-executor707488424", ["./syz-executor707488424"], 0x7ffc31c34c20 /* 10 vars */) = 0 brk(NULL) = 0x555562765000 brk(0x555562765d00) = 0x555562765d00 arch_prctl(ARCH_SET_FS, 0x555562765380) = 0 set_tid_address(0x555562765650) = 5840 set_robust_list(0x555562765660, 24) = 0 rseq(0x555562765ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor707488424", 4096) = 27 getrandom("\xef\x89\x24\xe2\x80\x5d\xef\xa1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555562765d00 brk(0x555562786d00) = 0x555562786d00 brk(0x555562787000) = 0x555562787000 mprotect(0x7fa0244eb000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 getrandom("\x26\x6d\xa1\x5b\xa0\x4f\x7e\xd3", 8, GRND_NONBLOCK) = 8 mkdir("./syzkaller.G7zvWQ", 0700) = 0 chmod("./syzkaller.G7zvWQ", 0777) = 0 chdir("./syzkaller.G7zvWQ") = 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 5841 attached [pid 5841] set_robust_list(0x555562765660, 24 [pid 5840] <... clone resumed>, child_tidptr=0x555562765650) = 5841 [pid 5841] <... set_robust_list resumed>) = 0 [pid 5841] chdir("./0") = 0 [pid 5841] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5841] setpgid(0, 0) = 0 [pid 5841] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5841] write(3, "1000", 4) = 4 [pid 5841] close(3) = 0 [pid 5841] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5841] write(1, "executing program\n", 18executing program ) = 18 [pid 5841] memfd_create("syzkaller", 0) = 3 [pid 5841] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa01c000000 [pid 5841] 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 5841] munmap(0x7fa01c000000, 138412032) = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5841] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5841] close(3) = 0 [pid 5841] close(4) = 0 [pid 5841] mkdir("./file1", 0777) = 0 [pid 5841] mount("/dev/loop0", "./file1", "jfs", MS_DIRSYNC|MS_NODIRATIME|MS_REC|MS_SILENT|MS_POSIXACL, "") = 0 [pid 5841] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5841] chdir("./file1") = 0 [pid 5841] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5841] openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT|O_TRUNC, 000) = 4 [pid 5841] pwrite64(4, "2", 1, 134745188) = 1 [ 78.950403][ T5841] loop0: detected capacity change from 0 to 32768 [pid 5841] mkdir("./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", 0777) = -1 EIO (Input/output error) [pid 5841] --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- [pid 5841] +++ killed by SIGSEGV +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=5841, si_uid=0, si_status=SIGSEGV, si_utime=2 /* 0.02 s */, si_stime=20 /* 0.20 s */} --- [ 79.029845][ T5841] syz-executor707: attempt to access beyond end of device [ 79.029845][ T5841] loop0: rw=1, sector=4680032, nr_sectors = 8 limit=32768 [ 79.045320][ T5841] metapage_write_end_io: I/O error [ 79.051455][ T5841] ERROR: (device loop0): release_metapage: metapage_write_one() failed [ 79.051455][ T5841] [ 79.062954][ T5841] ERROR: (device loop0): remounting filesystem as read-only [ 79.070405][ T5841] ERROR: (device loop0): diWrite: ixpxd invalid [ 79.070405][ T5841] 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, 0x5555627666f0 /* 4 entries */, 32768) = 112 [ 79.079051][ T5841] ERROR: (device loop0): txCommit: [ 79.079051][ T5841] [ 79.088580][ T5841] blkno = 8ed2c, nblocks = 1 [ 79.093250][ T5841] ERROR: (device loop0): dbUpdatePMap: blocks are outside the map [ 79.093250][ T5841] [ 79.104728][ T5841] ERROR: (device loop0): dbAlloc: the hint is outside the map [ 79.104728][ T5841] [ 79.150982][ T5840] ------------[ cut here ]------------ [ 79.156624][ T5840] kernel BUG at fs/jfs/inode.c:169! [ 79.161852][ T5840] Oops: invalid opcode: 0000 [#1] SMP KASAN PTI [ 79.168105][ T5840] CPU: 0 UID: 0 PID: 5840 Comm: syz-executor707 Not tainted 6.16.0-rc6-syzkaller-00002-g155a3c003e55 #0 PREEMPT(full) [ 79.180490][ T5840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 79.190715][ T5840] RIP: 0010:jfs_evict_inode+0x438/0x440 [ 79.196248][ T5840] Code: fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 17 fe ff ff 4c 89 f7 e8 d3 19 ea fe e9 0a fe ff ff e8 99 c4 88 fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 79.215921][ T5840] RSP: 0018:ffffc900041df9c0 EFLAGS: 00010293 [ 79.222055][ T5840] RAX: ffffffff83376db7 RBX: ffff888073019fd8 RCX: ffff88802a719e00 [ 79.230006][ T5840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888073019fd8 [ 79.238144][ T5840] RBP: 0000000000000001 R08: ffffffff8fa0cbf7 R09: 1ffffffff1f4197e [ 79.246107][ T5840] R10: dffffc0000000000 R11: ffffffff83374b50 R12: dffffc0000000000 [ 79.254067][ T5840] R13: dffffc0000000000 R14: ffff888073019c60 R15: ffffffff83376980 [ 79.262021][ T5840] FS: 0000555562765380(0000) GS:ffff888125c4f000(0000) knlGS:0000000000000000 [ 79.270929][ T5840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.277486][ T5840] CR2: 00007ffd7c1cbff8 CR3: 0000000076786000 CR4: 00000000003526f0 [ 79.285436][ T5840] Call Trace: [ 79.288696][ T5840] [ 79.291607][ T5840] ? evict+0x4f8/0x9c0 [ 79.295830][ T5840] ? __pfx_jfs_evict_inode+0x10/0x10 [ 79.301095][ T5840] evict+0x501/0x9c0 [ 79.305145][ T5840] ? __pfx_evict+0x10/0x10 [ 79.309540][ T5840] ? do_raw_spin_unlock+0x122/0x240 [ 79.314718][ T5840] evict_inodes+0x636/0x6c0 [ 79.319197][ T5840] ? __pfx_evict_inodes+0x10/0x10 [ 79.324198][ T5840] generic_shutdown_super+0x9a/0x2c0 [ 79.329464][ T5840] kill_block_super+0x44/0x90 [ 79.334119][ T5840] deactivate_locked_super+0xbc/0x130 [ 79.339466][ T5840] cleanup_mnt+0x425/0x4c0 [ 79.343857][ T5840] ? lockdep_hardirqs_on+0x9c/0x150 [ 79.349047][ T5840] task_work_run+0x1d4/0x260 [ 79.353616][ T5840] ? __pfx_task_work_run+0x10/0x10 [ 79.358704][ T5840] ? __x64_sys_umount+0x122/0x160 [ 79.363728][ T5840] ptrace_notify+0x281/0x2c0 [ 79.368302][ T5840] ? __pfx_ptrace_notify+0x10/0x10 [ 79.373389][ T5840] ? __x64_sys_umount+0x122/0x160 [ 79.378391][ T5840] ? __pfx___x64_sys_umount+0x10/0x10 [ 79.383742][ T5840] syscall_exit_work+0xc6/0x1d0 [ 79.388569][ T5840] do_syscall_64+0x2ad/0x3b0 [ 79.393135][ T5840] ? lockdep_hardirqs_on+0x9c/0x150 [ 79.398313][ T5840] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.404355][ T5840] ? clear_bhb_loop+0x60/0xb0 [ 79.409010][ T5840] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 79.414881][ T5840] RIP: 0033:0x7fa024472507 [ 79.419281][ T5840] 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 [ 79.438884][ T5840] RSP: 002b:00007ffd7c1cc268 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 79.447284][ T5840] RAX: 0000000000000000 RBX: 0000000000013381 RCX: 00007fa024472507 [ 79.455240][ T5840] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd7c1cc320 [ 79.463189][ T5840] RBP: 00007ffd7c1cc320 R08: 0000000000000000 R09: 0000000000000000 [ 79.471162][ T5840] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffd7c1cd390 [ 79.479117][ T5840] R13: 00005555627666c0 R14: 431bde82d7b634db R15: 00007ffd7c1cd3b0 [ 79.487076][ T5840] [ 79.490077][ T5840] Modules linked in: [ 79.494186][ T5840] ---[ end trace 0000000000000000 ]--- [ 79.500389][ T5840] RIP: 0010:jfs_evict_inode+0x438/0x440 [ 79.506280][ T5840] Code: fe e9 e0 fd ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 17 fe ff ff 4c 89 f7 e8 d3 19 ea fe e9 0a fe ff ff e8 99 c4 88 fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 79.526163][ T5840] RSP: 0018:ffffc900041df9c0 EFLAGS: 00010293 [ 79.532234][ T5840] RAX: ffffffff83376db7 RBX: ffff888073019fd8 RCX: ffff88802a719e00 [ 79.540229][ T5840] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888073019fd8 [ 79.548247][ T5840] RBP: 0000000000000001 R08: ffffffff8fa0cbf7 R09: 1ffffffff1f4197e [ 79.556268][ T5840] R10: dffffc0000000000 R11: ffffffff83374b50 R12: dffffc0000000000 [ 79.564248][ T5840] R13: dffffc0000000000 R14: ffff888073019c60 R15: ffffffff83376980 [ 79.572268][ T5840] FS: 0000555562765380(0000) GS:ffff888125c4f000(0000) knlGS:0000000000000000 [ 79.581227][ T5840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.587855][ T5840] CR2: 00007ffd7c1cbff8 CR3: 0000000076786000 CR4: 00000000003526f0 [ 79.595994][ T5840] Kernel panic - not syncing: Fatal exception [ 79.602367][ T5840] Kernel Offset: disabled [ 79.606673][ T5840] Rebooting in 86400 seconds..