./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor704394687 <...> Warning: Permanently added '10.128.0.63' (ED25519) to the list of known hosts. execve("./syz-executor704394687", ["./syz-executor704394687"], 0x7ffdc2d3e140 /* 10 vars */) = 0 brk(NULL) = 0x55556b4fa000 brk(0x55556b4fad00) = 0x55556b4fad00 arch_prctl(ARCH_SET_FS, 0x55556b4fa380) = 0 set_tid_address(0x55556b4fa650) = 5223 set_robust_list(0x55556b4fa660, 24) = 0 rseq(0x55556b4faca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor704394687", 4096) = 27 getrandom("\x30\x5f\xd3\xcb\x3d\xfc\x1b\x3f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556b4fad00 brk(0x55556b51bd00) = 0x55556b51bd00 brk(0x55556b51c000) = 0x55556b51c000 mprotect(0x7f89a35ec000, 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.DFrELr", 0700) = 0 chmod("./syzkaller.DFrELr", 0777) = 0 chdir("./syzkaller.DFrELr") = 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 5224 attached [pid 5224] set_robust_list(0x55556b4fa660, 24) = 0 [pid 5224] chdir("./0" [pid 5223] <... clone resumed>, child_tidptr=0x55556b4fa650) = 5224 [pid 5224] <... chdir resumed>) = 0 [pid 5224] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5224] setpgid(0, 0) = 0 [pid 5224] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5224] write(3, "1000", 4) = 4 [pid 5224] close(3) = 0 [pid 5224] symlink("/dev/binderfs", "./binderfs") = 0 [pid 5224] write(1, "executing program\n", 18executing program ) = 18 [pid 5224] memfd_create("syzkaller", 0) = 3 [pid 5224] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f899b000000 [pid 5224] 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 5224] munmap(0x7f899b000000, 138412032) = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5224] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5224] close(3) = 0 [pid 5224] close(4) = 0 [pid 5224] mkdir("./bus", 0777) = 0 [pid 5224] mount("/dev/loop0", "./bus", "jfs", MS_NOSUID|MS_LAZYTIME, "") = 0 [pid 5224] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [pid 5224] chdir("./bus") = 0 [pid 5224] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) syzkaller login: [ 72.533585][ T5224] loop0: detected capacity change from 0 to 32768 [pid 5224] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 5224] write(4, "\x30\x78\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 66572) = 66572 [pid 5224] openat(AT_FDCWD, "cpuacct.usage_sys", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = -1 EIO (Input/output error) [pid 5224] creat(NULL, 000) = -1 EFAULT (Bad address) [pid 5224] exit_group(0) = ? [pid 5224] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=5224, si_uid=0, si_status=0, si_utime=3 /* 0.03 s */, si_stime=18 /* 0.18 s */} --- 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, 0x55556b4fb6f0 /* 4 entries */, 32768) = 104 [ 72.602762][ T5224] jfs_create: dtInsert returned -EIO [ 72.608316][ T5224] ERROR: (device loop0): jfs_create: [ 72.608316][ T5224] [ 72.616958][ T5224] ERROR: (device loop0): remounting filesystem as read-only [ 72.642282][ T5223] ------------[ cut here ]------------ [ 72.647866][ T5223] kernel BUG at fs/jfs/inode.c:169! [ 72.653178][ T5223] Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI [ 72.660131][ T5223] CPU: 0 UID: 0 PID: 5223 Comm: syz-executor704 Not tainted 6.11.0-rc7-syzkaller-00097-g196145c606d0 #0 [ 72.671232][ T5223] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 72.681283][ T5223] RIP: 0010:jfs_evict_inode+0x434/0x440 [ 72.686835][ T5223] Code: df e8 90 45 d8 fe e9 1d fe ff ff e8 06 22 74 fe 48 c7 c7 a0 3e b4 8e 4c 89 ee e8 a7 58 c4 01 e9 92 fd ff ff e8 ed 21 74 fe 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 72.706444][ T5223] RSP: 0018:ffffc90002d0f998 EFLAGS: 00010293 [ 72.712501][ T5223] RAX: ffffffff831f6a73 RBX: ffff888072c09328 RCX: ffff88802c7d1e00 [ 72.720464][ T5223] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888072c096a0 [ 72.728530][ T5223] RBP: ffffc90002d0fb10 R08: ffffffff822cb593 R09: 1ffffffff27f4d21 [ 72.736597][ T5223] R10: dffffc0000000000 R11: ffffffff831f47e0 R12: ffff888072c096a0 [ 72.744586][ T5223] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff888072c096a0 [ 72.752550][ T5223] FS: 000055556b4fa380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 72.761473][ T5223] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.768062][ T5223] CR2: 00007ffff6d64c48 CR3: 000000007d522000 CR4: 00000000003506f0 [ 72.776035][ T5223] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.784003][ T5223] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.791965][ T5223] Call Trace: [ 72.795234][ T5223] [ 72.798157][ T5223] ? __die_body+0x88/0xe0 [ 72.802498][ T5223] ? die+0xcf/0x110 [ 72.806306][ T5223] ? do_trap+0x15a/0x3a0 [ 72.810545][ T5223] ? jfs_evict_inode+0x434/0x440 [ 72.815479][ T5223] ? do_error_trap+0x1dc/0x2c0 [ 72.820242][ T5223] ? jfs_evict_inode+0x434/0x440 [ 72.825176][ T5223] ? find_bug+0x63/0x390 [ 72.829445][ T5223] ? __pfx_do_error_trap+0x10/0x10 [ 72.834747][ T5223] ? handle_invalid_op+0x34/0x40 [ 72.839701][ T5223] ? jfs_evict_inode+0x434/0x440 [ 72.844643][ T5223] ? exc_invalid_op+0x38/0x50 [ 72.849325][ T5223] ? asm_exc_invalid_op+0x1a/0x20 [ 72.854351][ T5223] ? __pfx_jfs_get_dquots+0x10/0x10 [ 72.859547][ T5223] ? dquot_drop+0x43/0x160 [ 72.863964][ T5223] ? jfs_evict_inode+0x433/0x440 [ 72.868904][ T5223] ? jfs_evict_inode+0x434/0x440 [ 72.873841][ T5223] ? jfs_evict_inode+0x433/0x440 [ 72.878774][ T5223] ? __pfx_jfs_evict_inode+0x10/0x10 [ 72.884092][ T5223] evict+0x532/0x950 [ 72.887996][ T5223] ? __pfx_evict+0x10/0x10 [ 72.892428][ T5223] ? do_raw_spin_unlock+0x13c/0x8b0 [ 72.897622][ T5223] ? list_lru_del_obj+0x3b5/0x400 [ 72.902676][ T5223] evict_inodes+0x5f9/0x690 [ 72.907173][ T5223] ? __pfx_evict_inodes+0x10/0x10 [ 72.912191][ T5223] ? dput+0x37/0x2b0 [ 72.916087][ T5223] generic_shutdown_super+0x9d/0x2d0 [ 72.921371][ T5223] kill_block_super+0x44/0x90 [ 72.926051][ T5223] deactivate_locked_super+0xc4/0x130 [ 72.931425][ T5223] cleanup_mnt+0x41f/0x4b0 [ 72.935853][ T5223] ? lockdep_hardirqs_on+0x99/0x150 [ 72.941059][ T5223] task_work_run+0x24f/0x310 [ 72.945651][ T5223] ? __pfx_task_work_run+0x10/0x10 [ 72.950757][ T5223] ? path_umount+0x284/0xf70 [ 72.955372][ T5223] ptrace_notify+0x2d2/0x380 [ 72.959963][ T5223] ? __pfx_path_umount+0x10/0x10 [ 72.964903][ T5223] ? __pfx_ptrace_notify+0x10/0x10 [ 72.970013][ T5223] ? __x64_sys_umount+0x123/0x170 [ 72.975035][ T5223] ? __pfx___x64_sys_umount+0x10/0x10 [ 72.980405][ T5223] syscall_exit_work+0xc6/0x190 [ 72.985313][ T5223] syscall_exit_to_user_mode+0x279/0x370 [ 72.990938][ T5223] do_syscall_64+0x100/0x230 [ 72.995520][ T5223] ? clear_bhb_loop+0x35/0x90 [ 73.000221][ T5223] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 73.006129][ T5223] RIP: 0033:0x7f89a35733c7 [ 73.010548][ T5223] 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 [ 73.030148][ T5223] RSP: 002b:00007ffff6d653f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 73.038560][ T5223] RAX: 0000000000000000 RBX: 0000000000011a3e RCX: 00007f89a35733c7 [ 73.046529][ T5223] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff6d654b0 [ 73.054495][ T5223] RBP: 00007ffff6d654b0 R08: 0000000000000000 R09: 0000000000000000 [ 73.062461][ T5223] R10: 00000000ffffffff R11: 0000000000000202 R12: 00007ffff6d66510 [ 73.070440][ T5223] R13: 000055556b4fb6c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 73.078417][ T5223] [ 73.081428][ T5223] Modules linked in: [ 73.085514][ T5223] ---[ end trace 0000000000000000 ]--- [ 73.090979][ T5223] RIP: 0010:jfs_evict_inode+0x434/0x440 [ 73.096572][ T5223] Code: df e8 90 45 d8 fe e9 1d fe ff ff e8 06 22 74 fe 48 c7 c7 a0 3e b4 8e 4c 89 ee e8 a7 58 c4 01 e9 92 fd ff ff e8 ed 21 74 fe 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 73.116220][ T5223] RSP: 0018:ffffc90002d0f998 EFLAGS: 00010293 [ 73.122385][ T5223] RAX: ffffffff831f6a73 RBX: ffff888072c09328 RCX: ffff88802c7d1e00 [ 73.130388][ T5223] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888072c096a0 [ 73.138421][ T5223] RBP: ffffc90002d0fb10 R08: ffffffff822cb593 R09: 1ffffffff27f4d21 [ 73.146422][ T5223] R10: dffffc0000000000 R11: ffffffff831f47e0 R12: ffff888072c096a0 [ 73.154417][ T5223] R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff888072c096a0 [ 73.162453][ T5223] FS: 000055556b4fa380(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 [ 73.171374][ T5223] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.177995][ T5223] CR2: 000000000045bdd0 CR3: 000000007d522000 CR4: 00000000003506f0 [ 73.186026][ T5223] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.194215][ T5223] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.202235][ T5223] Kernel panic - not syncing: Fatal exception [ 73.208498][ T5223] Kernel Offset: disabled [ 73.212816][ T5223] Rebooting in 86400 seconds..