./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2274332811 <...> Warning: Permanently added '10.128.1.82' (ED25519) to the list of known hosts. execve("./syz-executor2274332811", ["./syz-executor2274332811"], 0x7ffce3d96030 /* 10 vars */) = 0 brk(NULL) = 0x555556eb8000 brk(0x555556eb8d00) = 0x555556eb8d00 arch_prctl(ARCH_SET_FS, 0x555556eb8380) = 0 set_tid_address(0x555556eb8650) = 5012 set_robust_list(0x555556eb8660, 24) = 0 rseq(0x555556eb8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2274332811", 4096) = 28 getrandom("\xe2\xa7\x01\x05\xd2\xa2\xca\x9c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556eb8d00 brk(0x555556ed9d00) = 0x555556ed9d00 brk(0x555556eda000) = 0x555556eda000 mprotect(0x7fa62f4c2000, 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 [ 61.739569][ T26] audit: type=1400 audit(1692675264.492:83): avc: denied { write } for pid=5009 comm="strace-static-x" path="pipe:[29537]" dev="pipefs" ino=29537 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 61.768362][ T26] audit: type=1400 audit(1692675264.522:84): avc: denied { execmem } for pid=5012 comm="syz-executor227" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fa626ff3000 write(3, "\xeb\x52\x90\x4e\x54\x46\x53\x20\x20\x20\x20\x00\x10\x01\x00\x00\x00\x00\x00\x00\x00\xf8\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x80\x00\x80\x00\xff\x01\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\xff\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\xf7\x9a\x81\x47\x2b\x73\xcf\x43\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 munmap(0x7fa626ff3000, 2097152) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 61.771877][ T5012] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5012 'syz-executor227' ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 mkdir("./file0", 0777) = 0 [ 61.824040][ T26] audit: type=1400 audit(1692675264.582:85): avc: denied { read write } for pid=5012 comm="syz-executor227" 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 [ 61.826686][ T5012] loop0: detected capacity change from 0 to 4096 [ 61.848464][ T26] audit: type=1400 audit(1692675264.582:86): avc: denied { open } for pid=5012 comm="syz-executor227" 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 mount("/dev/loop0", "./file0", "ntfs", 0, "") = 0 openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 chdir("./file0") = 0 ioctl(4, LOOP_CLR_FD) = 0 [ 61.848511][ T26] audit: type=1400 audit(1692675264.582:87): avc: denied { ioctl } for pid=5012 comm="syz-executor227" path="/dev/loop0" dev="devtmpfs" ino=648 ioctlcmd=0x4c00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 61.905466][ T26] audit: type=1400 audit(1692675264.642:88): avc: denied { mounton } for pid=5012 comm="syz-executor227" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 61.912954][ T5012] ntfs: volume version 3.1. close(4) = 0 [ 61.936349][ T26] audit: type=1400 audit(1692675264.692:89): avc: denied { mount } for pid=5012 comm="syz-executor227" name="/" dev="loop0" ino=5 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:dosfs_t tclass=filesystem permissive=1 [ 61.961008][ T5012] ------------[ cut here ]------------ [ 61.966714][ T5012] kernel BUG at fs/ntfs/inode.c:2536! [ 61.972656][ T5012] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 61.978744][ T5012] CPU: 1 PID: 5012 Comm: syz-executor227 Not tainted 6.5.0-rc7-syzkaller-00004-gf7757129e3de #0 [ 61.989181][ T5012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 61.999242][ T5012] RIP: 0010:ntfs_truncate+0x1078/0x2ae0 [ 62.004789][ T5012] Code: 0b e8 ec 5e d1 fe 0f 0b c7 85 58 ff ff ff 00 00 00 00 c7 45 80 ff ff ff ff e9 68 f5 ff ff e8 cf 5e d1 fe 0f 0b e8 c8 5e d1 fe <0f> 0b 48 c7 45 90 00 00 00 00 48 c7 45 c0 00 00 00 00 eb 93 48 89 [ 62.024386][ T5012] RSP: 0018:ffffc900033bfbb8 EFLAGS: 00010293 [ 62.030460][ T5012] RAX: 0000000000000000 RBX: ffff888071f14720 RCX: 0000000000000000 [ 62.038434][ T5012] RDX: ffff88807a4d8180 RSI: ffffffff82b3c1f8 RDI: 0000000000000005 [ 62.046405][ T5012] RBP: ffffc900033bfc90 R08: 0000000000000005 R09: 00000000ffffffff [ 62.054380][ T5012] R10: 00000000ffffffff R11: 0000000000000003 R12: dffffc0000000000 [ 62.062352][ T5012] R13: ffff88807c390160 R14: 00000000ffffffff R15: 0000000000000000 [ 62.070327][ T5012] FS: 0000555556eb8380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 62.079262][ T5012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.085848][ T5012] CR2: 00007fa62f4c9008 CR3: 00000000177b2000 CR4: 00000000003506e0 [ 62.093824][ T5012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.101791][ T5012] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.109763][ T5012] Call Trace: [ 62.113039][ T5012] [ 62.115980][ T5012] ? die+0x31/0x80 [ 62.119732][ T5012] ? do_trap+0x1ab/0x3b0 [ 62.123997][ T5012] ? ntfs_truncate+0x1078/0x2ae0 [ 62.128944][ T5012] ? do_error_trap+0x9e/0x160 [ 62.133636][ T5012] ? ntfs_truncate+0x1078/0x2ae0 [ 62.138589][ T5012] ? handle_invalid_op+0x2c/0x30 [ 62.143545][ T5012] ? ntfs_truncate+0x1078/0x2ae0 [ 62.148490][ T5012] ? exc_invalid_op+0x2d/0x40 [ 62.153182][ T5012] ? asm_exc_invalid_op+0x1a/0x20 [ 62.158216][ T5012] ? ntfs_truncate+0x1078/0x2ae0 [ 62.163156][ T5012] ? ntfs_truncate+0x1078/0x2ae0 [ 62.168105][ T5012] ? ntfs_truncate+0x1078/0x2ae0 [ 62.173049][ T5012] ntfs_setattr+0x39a/0x560 [ 62.177652][ T5012] ? ntfs_truncate_vfs+0x20/0x20 [ 62.182599][ T5012] notify_change+0x670/0x1160 [ 62.187292][ T5012] do_truncate+0x15c/0x220 [ 62.191717][ T5012] ? file_open_root+0x450/0x450 [ 62.196577][ T5012] vfs_truncate+0x3eb/0x4d0 [ 62.201087][ T5012] do_sys_truncate+0x153/0x190 [ 62.205864][ T5012] ? vfs_truncate+0x4d0/0x4d0 [ 62.210548][ T5012] ? lockdep_hardirqs_on+0x7d/0x100 [ 62.215754][ T5012] ? _raw_spin_unlock_irq+0x2e/0x50 [ 62.220965][ T5012] ? ptrace_notify+0xf4/0x130 [ 62.225647][ T5012] do_syscall_64+0x38/0xb0 [ 62.230071][ T5012] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.235971][ T5012] RIP: 0033:0x7fa62f4305f9 [ 62.240388][ T5012] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 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 [ 62.259997][ T5012] RSP: 002b:00007fffe784b7c8 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 62.268413][ T5012] RAX: ffffffffffffffda RBX: 00007fffe784b9a8 RCX: 00007fa62f4305f9 [ 62.276389][ T5012] RDX: 00007fa62f42f8f0 RSI: 0000000000000000 RDI: 0000000020000040 [ 62.284358][ T5012] RBP: 00007fa62f4c2610 R08: 000000000001f1cf R09: 0000000000000000 [ 62.292334][ T5012] R10: 00007fffe784b690 R11: 0000000000000246 R12: 0000000000000001 [ 62.300400][ T5012] R13: 00007fffe784b998 R14: 0000000000000001 R15: 0000000000000001 [ 62.308374][ T5012] [ 62.311391][ T5012] Modules linked in: [ 62.315544][ T5012] ---[ end trace 0000000000000000 ]--- [ 62.317267][ T26] audit: type=1400 audit(1692675265.072:90): avc: denied { append } for pid=4449 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 [ 62.321005][ T5012] RIP: 0010:ntfs_truncate+0x1078/0x2ae0 [ 62.347888][ T26] audit: type=1400 audit(1692675265.072:91): avc: denied { open } for pid=4449 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 [ 62.348842][ T5012] Code: 0b e8 ec 5e d1 fe 0f 0b c7 85 58 ff ff ff 00 00 00 00 c7 45 80 ff ff ff ff e9 68 f5 ff ff e8 cf 5e d1 fe 0f 0b e8 c8 5e d1 fe <0f> 0b 48 c7 45 90 00 00 00 00 48 c7 45 c0 00 00 00 00 eb 93 48 89 [ 62.371195][ T26] audit: type=1400 audit(1692675265.072:92): avc: denied { getattr } for pid=4449 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 [ 62.390532][ T5012] RSP: 0018:ffffc900033bfbb8 EFLAGS: 00010293 [ 62.419229][ T5012] RAX: 0000000000000000 RBX: ffff888071f14720 RCX: 0000000000000000 [ 62.427252][ T5012] RDX: ffff88807a4d8180 RSI: ffffffff82b3c1f8 RDI: 0000000000000005 [ 62.435266][ T5012] RBP: ffffc900033bfc90 R08: 0000000000000005 R09: 00000000ffffffff [ 62.443499][ T5012] R10: 00000000ffffffff R11: 0000000000000003 R12: dffffc0000000000 [ 62.451461][ T5012] R13: ffff88807c390160 R14: 00000000ffffffff R15: 0000000000000000 [ 62.459475][ T5012] FS: 0000555556eb8380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 62.468468][ T5012] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.475365][ T5012] CR2: 000055dfe3297e20 CR3: 00000000177b2000 CR4: 00000000003506f0 [ 62.483375][ T5012] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.491344][ T5012] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.499332][ T5012] Kernel panic - not syncing: Fatal exception [ 62.505599][ T5012] Kernel Offset: disabled [ 62.509912][ T5012] Rebooting in 86400 seconds..