./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2381484901 <...> Warning: Permanently added '10.128.0.174' (ED25519) to the list of known hosts. execve("./syz-executor2381484901", ["./syz-executor2381484901"], 0x7ffea5f4d870 /* 10 vars */) = 0 brk(NULL) = 0x555555fd3000 brk(0x555555fd3d00) = 0x555555fd3d00 arch_prctl(ARCH_SET_FS, 0x555555fd3380) = 0 set_tid_address(0x555555fd3650) = 5065 set_robust_list(0x555555fd3660, 24) = 0 rseq(0x555555fd3ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2381484901", 4096) = 28 getrandom("\xed\xb3\x38\x76\x6b\xe2\x14\xba", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555fd3d00 brk(0x555555ff4d00) = 0x555555ff4d00 brk(0x555555ff5000) = 0x555555ff5000 mprotect(0x7f8d0012c000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) [ 104.941192][ T27] audit: type=1400 audit(1704571178.502:83): avc: denied { execmem } for pid=5065 comm="syz-executor238" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 104.962622][ T27] audit: type=1400 audit(1704571178.522:84): avc: denied { read write } for pid=5065 comm="syz-executor238" name="loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555fd3650) = 5066 ./strace-static-x86_64: Process 5066 attached [pid 5066] set_robust_list(0x555555fd3660, 24) = 0 [pid 5066] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5066] setpgid(0, 0) = 0 [pid 5066] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5066] write(3, "1000", 4) = 4 [pid 5066] close(3) = 0 [pid 5066] memfd_create("syzkaller", 0) = 3 [pid 5066] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f8cf7c00000 [ 104.988192][ T27] audit: type=1400 audit(1704571178.522:85): avc: denied { open } for pid=5065 comm="syz-executor238" path="/dev/loop0" dev="devtmpfs" ino=648 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 105.014024][ T27] audit: type=1400 audit(1704571178.542:86): avc: denied { ioctl } for pid=5065 comm="syz-executor238" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5066] 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 5066] munmap(0x7f8cf7c00000, 138412032) = 0 [pid 5066] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5066] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5066] close(3) = 0 [pid 5066] mkdir("./file0", 0777) = 0 [ 105.321318][ T5066] loop0: detected capacity change from 0 to 32768 [pid 5066] mount("/dev/loop0", "./file0", "jfs", 0, "") = 0 [pid 5066] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5066] chdir("./file0") = 0 [pid 5066] ioctl(4, LOOP_CLR_FD) = 0 [pid 5066] close(4) = 0 [ 105.350725][ T27] audit: type=1400 audit(1704571178.912:87): avc: denied { mounton } for pid=5066 comm="syz-executor238" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 105.373822][ T27] audit: type=1400 audit(1704571178.932:88): avc: denied { mount } for pid=5066 comm="syz-executor238" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 105.421146][ T27] audit: type=1400 audit(1704571178.982:89): avc: denied { write } for pid=5066 comm="syz-executor238" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 105.441367][ T5066] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 105.449079][ T27] audit: type=1400 audit(1704571179.002:90): avc: denied { add_name } for pid=5066 comm="syz-executor238" name="memory.swap.current" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 105.455047][ T5066] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 105.455068][ T5066] CPU: 0 PID: 5066 Comm: syz-executor238 Not tainted 6.7.0-rc8-syzkaller-00174-g95c8a35f1c01 #0 [ 105.455099][ T5066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 105.480277][ T27] audit: type=1400 audit(1704571179.002:91): avc: denied { create } for pid=5066 comm="syz-executor238" name="memory.swap.current" scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:unlabeled_t tclass=file permissive=1 [ 105.485662][ T5066] RIP: 0010:dtInsertEntry.isra.0+0x127c/0x1680 [ 105.496855][ T27] audit: type=1400 audit(1704571179.002:92): avc: denied { append } for pid=4492 comm="syslogd" name="messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 105.506162][ T5066] Code: 40 04 ff e9 4a f9 ff ff e8 01 40 8e fe 48 8b 84 24 b8 00 00 00 48 8d 78 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 14 01 00 00 [ 105.506192][ T5066] RSP: 0018:ffffc900033df430 EFLAGS: 00010202 [ 105.581827][ T5066] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82f824cd [ 105.589832][ T5066] RDX: 0000000000000001 RSI: ffffffff82f8251f RDI: 0000000000000008 [ 105.597830][ T5066] RBP: ffff888075bb2480 R08: 0000000000000001 R09: 0000000000000000 [ 105.605816][ T5066] R10: 0000000000000000 R11: 0000000000000004 R12: ffff88801ec21aa6 [ 105.613802][ T5066] R13: ffff888075bb2470 R14: ffff888075bb2482 R15: dffffc0000000000 [ 105.621792][ T5066] FS: 0000555555fd3380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 105.630766][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.637370][ T5066] CR2: 000055cb6cb5b6c0 CR3: 00000000204cc000 CR4: 00000000003506f0 [ 105.645363][ T5066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.653349][ T5066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.661334][ T5066] Call Trace: [ 105.664641][ T5066] [ 105.667579][ T5066] ? show_regs+0x8f/0xa0 [ 105.671853][ T5066] ? die_addr+0x4f/0xd0 [ 105.676033][ T5066] ? exc_general_protection+0x155/0x230 [ 105.681626][ T5066] ? asm_exc_general_protection+0x26/0x30 [ 105.687383][ T5066] ? dtInsertEntry.isra.0+0x120d/0x1680 [ 105.692986][ T5066] ? dtInsertEntry.isra.0+0x125f/0x1680 [ 105.698566][ T5066] ? dtInsertEntry.isra.0+0x127c/0x1680 [ 105.704150][ T5066] ? add_index+0x11a0/0x11a0 [ 105.708774][ T5066] ? rcu_is_watching+0x12/0xb0 [ 105.713568][ T5066] ? __mark_inode_dirty+0x599/0xd60 [ 105.718790][ T5066] dtInsert+0x575/0xb00 [ 105.722972][ T5066] ? dtSearch+0x2450/0x2450 [ 105.727506][ T5066] jfs_create+0x63c/0xb40 [ 105.731868][ T5066] ? jfs_mknod+0x9d0/0x9d0 [ 105.736325][ T5066] ? security_inode_permission+0xd8/0x100 [ 105.742077][ T5066] ? jfs_mknod+0x9d0/0x9d0 [ 105.746527][ T5066] lookup_open.isra.0+0x1095/0x13b0 [ 105.751757][ T5066] ? try_lookup_one_len+0x1a0/0x1a0 [ 105.756983][ T5066] ? lock_sync+0x190/0x190 [ 105.761447][ T5066] ? preempt_count_sub+0x160/0x160 [ 105.766590][ T5066] ? mnt_get_write_access+0x20c/0x300 [ 105.772004][ T5066] path_openat+0x922/0x2c50 [ 105.776551][ T5066] ? path_lookupat+0x770/0x770 [ 105.781353][ T5066] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 105.787372][ T5066] do_filp_open+0x1de/0x430 [ 105.791907][ T5066] ? may_open_dev+0xf0/0xf0 [ 105.796447][ T5066] ? _raw_spin_unlock+0x28/0x40 [ 105.801333][ T5066] ? alloc_fd+0x2da/0x6c0 [ 105.805708][ T5066] do_sys_openat2+0x176/0x1e0 [ 105.810591][ T5066] ? build_open_flags+0x690/0x690 [ 105.815642][ T5066] ? reacquire_held_locks+0x4c0/0x4c0 [ 105.821051][ T5066] __x64_sys_openat+0x175/0x210 [ 105.825922][ T5066] ? __ia32_sys_open+0x1e0/0x1e0 [ 105.830881][ T5066] ? lockdep_hardirqs_on+0x7d/0x110 [ 105.836110][ T5066] ? ptrace_notify+0xf4/0x130 [ 105.840802][ T5066] ? syscall_trace_enter.constprop.0+0xaf/0x1e0 [ 105.847061][ T5066] do_syscall_64+0x40/0x110 [ 105.851598][ T5066] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 105.857525][ T5066] RIP: 0033:0x7f8d000b3a59 [ 105.861966][ T5066] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 105.881590][ T5066] RSP: 002b:00007ffcccfc1858 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 105.890023][ T5066] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8d000b3a59 [ 105.898006][ T5066] RDX: 000000000000275a RSI: 00000000200001c0 RDI: 00000000ffffff9c [ 105.905993][ T5066] RBP: 00007f8d0012c5f0 R08: 0000000000005e04 R09: 0000555555fd44c0 [ 105.913975][ T5066] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffcccfc1880 [ 105.921970][ T5066] R13: 00007ffcccfc1aa8 R14: 431bde82d7b634db R15: 00007f8d000fc03b [ 105.929964][ T5066] [ 105.932993][ T5066] Modules linked in: [ 105.942505][ T5066] ---[ end trace 0000000000000000 ]--- [ 105.948175][ T5066] RIP: 0010:dtInsertEntry.isra.0+0x127c/0x1680 [ 105.954479][ T5066] Code: 40 04 ff e9 4a f9 ff ff e8 01 40 8e fe 48 8b 84 24 b8 00 00 00 48 8d 78 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 14 01 00 00 [ 105.974301][ T5066] RSP: 0018:ffffc900033df430 EFLAGS: 00010202 [ 105.980938][ T5066] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82f824cd [ 105.989300][ T5066] RDX: 0000000000000001 RSI: ffffffff82f8251f RDI: 0000000000000008 [ 105.997703][ T5066] RBP: ffff888075bb2480 R08: 0000000000000001 R09: 0000000000000000 [ 106.006054][ T5066] R10: 0000000000000000 R11: 0000000000000004 R12: ffff88801ec21aa6 [ 106.014071][ T5066] R13: ffff888075bb2470 R14: ffff888075bb2482 R15: dffffc0000000000 [ 106.022524][ T5066] FS: 0000555555fd3380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 106.031751][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 106.038665][ T5066] CR2: 000055cb6cb5b6c0 CR3: 00000000204cc000 CR4: 00000000003506f0 [ 106.046757][ T5066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 106.054795][ T5066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 106.063254][ T5066] Kernel panic - not syncing: Fatal exception [ 106.069632][ T5066] Kernel Offset: disabled [ 106.073996][ T5066] Rebooting in 86400 seconds..