./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2452503234 <...> Warning: Permanently added '10.128.0.245' (ED25519) to the list of known hosts. execve("./syz-executor2452503234", ["./syz-executor2452503234"], 0x7ffd5d6a19c0 /* 10 vars */) = 0 brk(NULL) = 0x555557343000 brk(0x555557343d00) = 0x555557343d00 arch_prctl(ARCH_SET_FS, 0x555557343380) = 0 set_tid_address(0x555557343650) = 5049 set_robust_list(0x555557343660, 24) = 0 rseq(0x555557343ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2452503234", 4096) = 28 getrandom("\x2a\x36\xae\xb0\x24\x34\x6d\x19", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555557343d00 brk(0x555557364d00) = 0x555557364d00 brk(0x555557365000) = 0x555557365000 mprotect(0x7faca422e000, 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 memfd_create("syzkaller", 0) = 3 mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fac9bc00000 [ 75.518143][ T28] audit: type=1400 audit(1705624139.790:86): avc: denied { execmem } for pid=5049 comm="syz-executor245" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 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\x78\x5f\xaa\x3b\xd7\x0e\xce\x68\x00\x00\x00\x00\x0e\x1f\xbe\x71\x7c\xac\x22\xc0\x74\x0b\x56\xb4\x0e\xbb\x07\x00"..., 2097152) = 2097152 munmap(0x7fac9bc00000, 138412032) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [ 75.608151][ T28] audit: type=1400 audit(1705624139.880:87): avc: denied { read write } for pid=5049 comm="syz-executor245" 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 [ 75.611464][ T5049] loop0: detected capacity change from 0 to 4096 ioctl(4, LOOP_SET_FD, 3) = 0 close(3) = 0 close(4) = 0 mkdir("./file1", 0777) = 0 [ 75.632933][ T28] audit: type=1400 audit(1705624139.880:88): avc: denied { open } for pid=5049 comm="syz-executor245" 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 [ 75.663296][ T28] audit: type=1400 audit(1705624139.880:89): avc: denied { ioctl } for pid=5049 comm="syz-executor245" 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 mount("/dev/loop0", "./file1", "ntfs3", MS_NOEXEC|MS_SYNCHRONOUS|MS_REC|MS_I_VERSION, "") = 0 [ 75.714465][ T28] audit: type=1400 audit(1705624139.980:90): avc: denied { mounton } for pid=5049 comm="syz-executor245" path="/root/file1" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 75.715791][ T5049] ntfs3: loop0: Different NTFS sector size (4096) and media sector size (512). openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 chdir("./file1") = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) chdir("./file0") = 0 openat(AT_FDCWD, "./file1", O_RDONLY) = 4 [ 75.774974][ T28] audit: type=1400 audit(1705624140.040:91): avc: denied { mount } for pid=5049 comm="syz-executor245" name="/" dev="loop0" ino=5 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 75.808024][ T28] audit: type=1400 audit(1705624140.080:92): avc: denied { read } for pid=5049 comm="syz-executor245" name="file1" dev="loop0" ino=29 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 75.831200][ T28] audit: type=1400 audit(1705624140.080:93): avc: denied { open } for pid=5049 comm="syz-executor245" path="/root/file1/file0/file1" dev="loop0" ino=29 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 75.831476][ T5049] general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN [ 75.866767][ T5049] KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] [ 75.875156][ T5049] CPU: 0 PID: 5049 Comm: syz-executor245 Not tainted 6.7.0-syzkaller-11091-g296455ade1fd #0 [ 75.885195][ T5049] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 75.895228][ T5049] RIP: 0010:attr_data_read_resident+0xa0/0x6e0 [ 75.901382][ T5049] Code: 89 e6 e8 a3 21 c7 fe 45 84 e4 0f 85 c3 04 00 00 e8 65 26 c7 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ba 05 00 00 48 8d 7d 10 4c 8b 63 20 48 b8 00 00 [ 75.920979][ T5049] RSP: 0018:ffffc900033efa10 EFLAGS: 00010202 [ 75.927027][ T5049] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82bfe30d [ 75.934977][ T5049] RDX: 0000000000000004 RSI: ffffffff82bfe31b RDI: 0000000000000020 [ 75.942932][ T5049] RBP: ffff88802bf34108 R08: 0000000000000001 R09: 0000000000000000 [ 75.950884][ T5049] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 75.958840][ T5049] R13: ffff88807f2d4000 R14: 000000000000000c R15: 0000000000000080 [ 75.966805][ T5049] FS: 0000555557343380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 75.975737][ T5049] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 75.982316][ T5049] CR2: 0000563486acaeb0 CR3: 0000000024876000 CR4: 00000000003506f0 [ 75.990280][ T5049] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 75.998242][ T5049] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.006204][ T5049] Call Trace: [ 76.009476][ T5049] [ 76.012396][ T5049] ? show_regs+0x8f/0xa0 [ 76.016640][ T5049] ? die_addr+0x4f/0xd0 [ 76.020790][ T5049] ? exc_general_protection+0x155/0x230 [ 76.026337][ T5049] ? asm_exc_general_protection+0x26/0x30 [ 76.032126][ T5049] ? attr_data_read_resident+0x7d/0x6e0 [ 76.037675][ T5049] ? attr_data_read_resident+0x8b/0x6e0 [ 76.043215][ T5049] ? attr_data_read_resident+0xa0/0x6e0 [ 76.048755][ T5049] ntfs_get_block_vbo+0x6b0/0xec0 [ 76.053786][ T5049] ? folio_flags.constprop.0+0x150/0x150 [ 76.059423][ T5049] ? ntfs_get_block_direct_IO_W+0xa0/0xa0 [ 76.065144][ T5049] generic_block_bmap+0x123/0x1a0 [ 76.070169][ T5049] ? __remove_assoc_queue+0x1c0/0x1c0 [ 76.075538][ T5049] ? avc_has_perm_noaudit+0x145/0x3a0 [ 76.080911][ T5049] ? preempt_count_sub+0x160/0x160 [ 76.086022][ T5049] ? ntfs_direct_IO+0x470/0x470 [ 76.090874][ T5049] bmap+0xae/0x120 [ 76.094593][ T5049] do_vfs_ioctl+0xaf8/0x1920 [ 76.099182][ T5049] ? vfs_fileattr_set+0xbf0/0xbf0 [ 76.104210][ T5049] ? inode_has_perm+0x16f/0x1d0 [ 76.109060][ T5049] ? file_has_perm+0x286/0x350 [ 76.113824][ T5049] ? bpf_fd_pass+0x290/0x290 [ 76.118416][ T5049] ? selinux_file_ioctl+0xb5/0x270 [ 76.123525][ T5049] __x64_sys_ioctl+0x112/0x210 [ 76.128289][ T5049] do_syscall_64+0xd3/0x250 [ 76.132786][ T5049] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 76.138681][ T5049] RIP: 0033:0x7faca419caf9 [ 76.143088][ T5049] 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 [ 76.162687][ T5049] RSP: 002b:00007ffe1766eb48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 76.171092][ T5049] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007faca419caf9 [ 76.179054][ T5049] RDX: 0000000020000100 RSI: 0000000000000001 RDI: 0000000000000004 [ 76.187019][ T5049] RBP: 00007faca422e610 R08: 0000000000000000 R09: 00007ffe1766ed18 [ 76.194984][ T5049] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.202946][ T5049] R13: 00007ffe1766ed08 R14: 0000000000000001 R15: 0000000000000001 [ 76.210909][ T5049] [ 76.213913][ T5049] Modules linked in: [ 76.218353][ T5049] ---[ end trace 0000000000000000 ]--- [ 76.223816][ T5049] RIP: 0010:attr_data_read_resident+0xa0/0x6e0 [ 76.230010][ T5049] Code: 89 e6 e8 a3 21 c7 fe 45 84 e4 0f 85 c3 04 00 00 e8 65 26 c7 fe 48 8d 7b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 ba 05 00 00 48 8d 7d 10 4c 8b 63 20 48 b8 00 00 [ 76.249647][ T5049] RSP: 0018:ffffc900033efa10 EFLAGS: 00010202 [ 76.255808][ T5049] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff82bfe30d [ 76.263780][ T5049] RDX: 0000000000000004 RSI: ffffffff82bfe31b RDI: 0000000000000020 [ 76.271829][ T5049] RBP: ffff88802bf34108 R08: 0000000000000001 R09: 0000000000000000 [ 76.279832][ T5049] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 76.287825][ T5049] R13: ffff88807f2d4000 R14: 000000000000000c R15: 0000000000000080 [ 76.295808][ T5049] FS: 0000555557343380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 76.304759][ T5049] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.311342][ T5049] CR2: 0000563486acaeb0 CR3: 0000000024876000 CR4: 00000000003506f0 [ 76.319327][ T5049] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.327319][ T5049] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.335318][ T5049] Kernel panic - not syncing: Fatal exception [ 76.341547][ T5049] Kernel Offset: disabled [ 76.345853][ T5049] Rebooting in 86400 seconds..