./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1586566574 <...> Warning: Permanently added '10.128.0.31' (ED25519) to the list of known hosts. execve("./syz-executor1586566574", ["./syz-executor1586566574"], 0x7ffdbc1418c0 /* 10 vars */) = 0 brk(NULL) = 0x55555713a000 brk(0x55555713ad00) = 0x55555713ad00 arch_prctl(ARCH_SET_FS, 0x55555713a380) = 0 set_tid_address(0x55555713a650) = 5065 set_robust_list(0x55555713a660, 24) = 0 rseq(0x55555713aca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1586566574", 4096) = 28 getrandom("\xcb\xbc\xd7\x76\x9e\xc2\x3c\x08", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555713ad00 brk(0x55555715bd00) = 0x55555715bd00 brk(0x55555715c000) = 0x55555715c000 mprotect(0x7f49a7632000, 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) [ 103.546307][ T27] audit: type=1400 audit(1704572756.393:83): avc: denied { execmem } for pid=5065 comm="syz-executor158" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 103.568279][ T27] audit: type=1400 audit(1704572756.413:84): avc: denied { read write } for pid=5065 comm="syz-executor158" 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 [ 103.593639][ T27] audit: type=1400 audit(1704572756.413:85): avc: denied { open } for pid=5065 comm="syz-executor158" 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5066 attached , child_tidptr=0x55555713a650) = 5066 [pid 5066] set_robust_list(0x55555713a660, 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) = 0x7f499f000000 [ 103.621674][ T27] audit: type=1400 audit(1704572756.413:86): avc: denied { ioctl } for pid=5065 comm="syz-executor158" 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"..., 524288) = 524288 [pid 5066] munmap(0x7f499f000000, 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 [pid 5066] mount("/dev/loop0", "./file0", "hfsplus", 0, "\x74\x79\x70\x65\x3d\xc5\x0c\xb8\xcf\x2c\x67\x69\x64\x3d\x30\x78\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x30\x2c\x64\x65\x63\x6f\x6d\x70\x6f\x73\x65\x2c\x6e\x6c\x73\x3d\x64\x65\x66\x61\x75\x6c\x74\x2c") = 0 [ 103.727354][ T5066] loop0: detected capacity change from 0 to 1024 [ 103.753399][ T27] audit: type=1400 audit(1704572756.593:87): avc: denied { mounton } for pid=5066 comm="syz-executor158" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [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 [ 103.776381][ T27] audit: type=1400 audit(1704572756.613:88): avc: denied { mount } for pid=5066 comm="syz-executor158" name="/" dev="loop0" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 103.817287][ T5066] ------------[ cut here ]------------ [ 103.823072][ T5066] kernel BUG at fs/hfsplus/xattr.c:175! [ 103.830196][ T5066] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 103.836320][ T5066] CPU: 0 PID: 5066 Comm: syz-executor158 Not tainted 6.7.0-rc8-syzkaller-00174-g95c8a35f1c01 #0 [ 103.846771][ T5066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 103.856862][ T5066] RIP: 0010:__hfsplus_setxattr+0x2104/0x2200 [ 103.862876][ T5066] Code: ff 4c 8b 54 24 50 4c 8b 44 24 38 e9 28 ea ff ff e8 b1 2f 83 ff 4c 8b 54 24 50 4c 8b 44 24 38 e9 f2 e9 ff ff e8 cd 48 2d ff 90 <0f> 0b 48 8b 7c 24 48 e8 90 2f 83 ff 4c 8b 54 24 50 4c 8b 44 24 38 [ 103.882499][ T5066] RSP: 0018:ffffc900033ff4d8 EFLAGS: 00010293 [ 103.888575][ T5066] RAX: 0000000000000000 RBX: 0000000000010000 RCX: ffffffff825905f6 [ 103.896548][ T5066] RDX: ffff8880206201c0 RSI: ffffffff82591c53 RDI: 0000000000000007 [ 103.904525][ T5066] RBP: ffffed100e290e07 R08: ffff888020b60000 R09: 0000000000000000 [ 103.912503][ T5066] R10: ffff888071487030 R11: ffffffff915ee8c0 R12: 0000000000000003 [ 103.920480][ T5066] R13: ffff888071487000 R14: 1ffff9200067fead R15: ffffc900033ff598 [ 103.928458][ T5066] FS: 000055555713a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 103.937402][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 103.943993][ T5066] CR2: 0000000020001d00 CR3: 0000000020850000 CR4: 00000000003506f0 [ 103.951971][ T5066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 103.959966][ T5066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 103.967951][ T5066] Call Trace: [ 103.971243][ T5066] [ 103.974171][ T5066] ? show_regs+0x8f/0xa0 [ 103.978447][ T5066] ? die+0x36/0xa0 [ 103.982188][ T5066] ? do_trap+0x22b/0x420 [ 103.986450][ T5066] ? __hfsplus_setxattr+0x2104/0x2200 [ 103.991842][ T5066] ? __hfsplus_setxattr+0x2104/0x2200 [ 103.997230][ T5066] ? do_error_trap+0xf4/0x230 [ 104.001933][ T5066] ? __hfsplus_setxattr+0x2104/0x2200 [ 104.007320][ T5066] ? handle_invalid_op+0x34/0x40 [ 104.012278][ T5066] ? __hfsplus_setxattr+0x2104/0x2200 [ 104.017685][ T5066] ? exc_invalid_op+0x2e/0x40 [ 104.022392][ T5066] ? asm_exc_invalid_op+0x1a/0x20 [ 104.027442][ T5066] ? __hfsplus_setxattr+0xaa6/0x2200 [ 104.032751][ T5066] ? __hfsplus_setxattr+0x2103/0x2200 [ 104.038157][ T5066] ? __hfsplus_setxattr+0x2104/0x2200 [ 104.043543][ T5066] ? __hfsplus_setxattr+0x2103/0x2200 [ 104.048924][ T5066] ? lock_acquire+0x1ae/0x520 [ 104.053615][ T5066] ? find_held_lock+0x2d/0x110 [ 104.058402][ T5066] ? copy_name+0xa0/0xa0 [ 104.062679][ T5066] ? mark_held_locks+0x9f/0xe0 [ 104.067476][ T5066] ? _raw_spin_unlock_irqrestore+0x4e/0x70 [ 104.073297][ T5066] ? lockdep_hardirqs_on+0x7d/0x110 [ 104.078534][ T5066] hfsplus_setxattr+0x10c/0x160 [ 104.083394][ T5066] ? hfsplus_init_security+0x40/0x40 [ 104.088691][ T5066] __vfs_setxattr+0x173/0x1d0 [ 104.093386][ T5066] ? __vfs_removexattr+0x1c0/0x1c0 [ 104.098508][ T5066] __vfs_setxattr_noperm+0x127/0x5e0 [ 104.103829][ T5066] __vfs_setxattr_locked+0x17e/0x250 [ 104.109143][ T5066] vfs_setxattr+0x146/0x350 [ 104.113654][ T5066] ? save_trace+0x4e/0xb30 [ 104.118102][ T5066] ? __vfs_setxattr_locked+0x250/0x250 [ 104.123565][ T5066] do_setxattr+0x142/0x170 [ 104.127999][ T5066] setxattr+0x159/0x170 [ 104.132165][ T5066] ? do_setxattr+0x170/0x170 [ 104.136767][ T5066] ? mnt_get_write_access+0x20c/0x300 [ 104.142152][ T5066] path_setxattr+0x175/0x1d0 [ 104.146762][ T5066] ? setxattr+0x170/0x170 [ 104.151093][ T5066] ? _raw_spin_unlock_irq+0x23/0x50 [ 104.156299][ T5066] ? _raw_spin_unlock_irq+0x2e/0x50 [ 104.161506][ T5066] ? ptrace_notify+0xf4/0x130 [ 104.166192][ T5066] __x64_sys_setxattr+0xc4/0x160 [ 104.171151][ T5066] ? syscall_enter_from_user_mode+0x107/0x120 [ 104.177232][ T5066] do_syscall_64+0x40/0x110 [ 104.181760][ T5066] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 104.187862][ T5066] RIP: 0033:0x7f49a75bdd99 [ 104.192292][ 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 [ 104.211904][ T5066] RSP: 002b:00007ffeb56b3e98 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc [ 104.220323][ T5066] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f49a75bdd99 [ 104.228296][ T5066] RDX: 0000000000000000 RSI: 0000000020001d40 RDI: 0000000020001d00 [ 104.236269][ T5066] RBP: 00007f49a76325f0 R08: 0000000000000001 R09: 000055555713b4c0 [ 104.244243][ T5066] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeb56b3ec0 [ 104.252217][ T5066] R13: 00007ffeb56b40e8 R14: 431bde82d7b634db R15: 00007f49a760703b [ 104.260281][ T5066] [ 104.263289][ T5066] Modules linked in: [ 104.268605][ T5066] ---[ end trace 0000000000000000 ]--- [ 104.274131][ T27] audit: type=1400 audit(1704572757.113:89): avc: denied { append } for pid=4496 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 [ 104.296242][ T5066] RIP: 0010:__hfsplus_setxattr+0x2104/0x2200 [ 104.302278][ T5066] Code: ff 4c 8b 54 24 50 4c 8b 44 24 38 e9 28 ea ff ff e8 b1 2f 83 ff 4c 8b 54 24 50 4c 8b 44 24 38 e9 f2 e9 ff ff e8 cd 48 2d ff 90 <0f> 0b 48 8b 7c 24 48 e8 90 2f 83 ff 4c 8b 54 24 50 4c 8b 44 24 38 [ 104.302573][ T27] audit: type=1400 audit(1704572757.113:90): avc: denied { open } for pid=4496 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=3 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 104.321939][ T5066] RSP: 0018:ffffc900033ff4d8 EFLAGS: 00010293 [ 104.321968][ T5066] RAX: 0000000000000000 RBX: 0000000000010000 RCX: ffffffff825905f6 [ 104.321988][ T5066] RDX: ffff8880206201c0 RSI: ffffffff82591c53 RDI: 0000000000000007 [ 104.322009][ T5066] RBP: ffffed100e290e07 R08: ffff888020b60000 R09: 0000000000000000 [ 104.322028][ T5066] R10: ffff888071487030 R11: ffffffff915ee8c0 R12: 0000000000000003 [ 104.322055][ T5066] R13: ffff888071487000 R14: 1ffff9200067fead R15: ffffc900033ff598 [ 104.322077][ T5066] FS: 000055555713a380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 104.322107][ T5066] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 104.322129][ T5066] CR2: 0000000020001d00 CR3: 0000000020850000 CR4: 00000000003506f0 [ 104.322149][ T5066] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 104.322168][ T5066] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 104.322190][ T5066] Kernel panic - not syncing: Fatal exception [ 104.322461][ T5066] Kernel Offset: disabled