./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3376972227 <...> Warning: Permanently added '10.128.0.13' (ED25519) to the list of known hosts. execve("./syz-executor3376972227", ["./syz-executor3376972227"], 0x7ffc68f6d2c0 /* 10 vars */) = 0 brk(NULL) = 0x555555f84000 brk(0x555555f84e00) = 0x555555f84e00 arch_prctl(ARCH_SET_FS, 0x555555f84480) = 0 set_tid_address(0x555555f84750) = 298 set_robust_list(0x555555f84760, 24) = 0 rseq(0x555555f84da0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3376972227", 4096) = 28 getrandom("\x87\x48\xcc\xf1\x28\x68\x59\x3f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555f84e00 brk(0x555555fa5e00) = 0x555555fa5e00 brk(0x555555fa6000) = 0x555555fa6000 mprotect(0x7f479e336000, 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 rt_sigaction(SIGRTMIN, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGRT_1, {sa_handler=SIG_IGN, sa_mask=[], sa_flags=0}, NULL, 8) = 0 rt_sigaction(SIGSEGV, {sa_handler=0x7f479e2900a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f479e2973f0}, NULL, 8) = 0 rt_sigaction(SIGBUS, {sa_handler=0x7f479e2900a0, sa_mask=[], sa_flags=SA_RESTORER|SA_NODEFER|SA_SIGINFO, sa_restorer=0x7f479e2973f0}, NULL, 8) = 0 mkdir("./file0", 000) = 0 openat(AT_FDCWD, "./file1", O_RDWR|O_CREAT, 000) = 3 mkdir("./file2", 0777) = 0 --- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} --- mount(NULL, "./file0", "overlay", 0, "workdir=./file0,lowerdir=.,upperdir=./file2,metacopy=on,,") = 0 mount("./file0", "./file0", "incremental-fs", 0, NULL) = 0 openat(AT_FDCWD, "./file0", O_RDONLY) = 4 linkat(4, "./file1", 4, "./file3", 0) = 0 [ 24.420247][ T28] audit: type=1400 audit(1711477320.232:66): avc: denied { execmem } for pid=298 comm="syz-executor337" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 24.434468][ T298] general protection fault, probably for non-canonical address 0xdffffc0000000006: 0000 [#1] PREEMPT SMP KASAN [ 24.439755][ T28] audit: type=1400 audit(1711477320.242:67): avc: denied { mounton } for pid=298 comm="syz-executor337" path="/root/file0" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 24.454512][ T298] KASAN: null-ptr-deref in range [0x0000000000000030-0x0000000000000037] [ 24.454533][ T298] CPU: 1 PID: 298 Comm: syz-executor337 Not tainted 6.1.68-syzkaller-00095-g8790a94475c9 #0 [ 24.454548][ T298] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 24.454556][ T298] RIP: 0010:security_inode_getattr+0x47/0x130 [ 24.454599][ T298] Code: 30 ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c7 1c 77 ff 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 aa 1c 77 ff 48 8b 1b 48 83 c3 0c [ 24.477698][ T28] audit: type=1400 audit(1711477320.242:68): avc: denied { unlink } for pid=298 comm="syz-executor337" name="#1" dev="sda1" ino=1933 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=chr_file permissive=1 [ 24.485966][ T298] RSP: 0018:ffffc90000e86eb8 EFLAGS: 00010206 [ 24.496055][ T28] audit: type=1400 audit(1711477320.242:69): avc: denied { mount } for pid=298 comm="syz-executor337" name="/" dev="overlay" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 24.506360][ T298] [ 24.506367][ T298] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff8881095a5100 [ 24.506380][ T298] RDX: 0000000000000000 RSI: ffffc90000e873a0 RDI: ffffc90000e87390 [ 24.506392][ T298] RBP: ffffc90000e86ee0 R08: dffffc0000000000 R09: ffffc90000e87390 [ 24.506403][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000e873a0 [ 24.506414][ T298] R13: dffffc0000000000 R14: ffffc90000e87390 R15: ffffc90000e87390 [ 24.512412][ T28] audit: type=1400 audit(1711477320.242:70): avc: denied { mount } for pid=298 comm="syz-executor337" name="/" dev="incremental-fs" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=filesystem permissive=1 [ 24.531703][ T298] FS: 0000555555f84480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 24.531722][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.553812][ T28] audit: type=1400 audit(1711477320.242:71): avc: denied { write } for pid=298 comm="syz-executor337" name="/" dev="incremental-fs" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 24.559666][ T298] CR2: 0000000000000000 CR3: 0000000109461000 CR4: 00000000003506a0 [ 24.559690][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.559699][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.559708][ T298] Call Trace: [ 24.559714][ T298] [ 24.581760][ T28] audit: type=1400 audit(1711477320.242:72): avc: denied { add_name } for pid=298 comm="syz-executor337" name="file1" dev="incremental-fs" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 24.583877][ T298] ? __die_body+0x62/0xb0 [ 24.591884][ T28] audit: type=1400 audit(1711477320.242:73): avc: denied { link } for pid=298 comm="syz-executor337" name="file1" dev="incremental-fs" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 24.599690][ T298] ? die_addr+0x9f/0xd0 [ 24.607631][ T28] audit: type=1400 audit(1711477320.242:74): avc: denied { read write } for pid=298 comm="syz-executor337" name="file3" dev="incremental-fs" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 24.615418][ T298] ? exc_general_protection+0x317/0x4c0 [ 24.623376][ T28] audit: type=1400 audit(1711477320.242:75): avc: denied { open } for pid=298 comm="syz-executor337" path="/root/file0/file3" dev="incremental-fs" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=file permissive=1 [ 24.646674][ T298] ? asm_exc_general_protection+0x27/0x30 [ 24.826770][ T298] ? security_inode_getattr+0x47/0x130 [ 24.832056][ T298] ? security_inode_getattr+0x1f/0x130 [ 24.837350][ T298] vfs_getattr+0x2a/0x310 [ 24.841527][ T298] ovl_copy_up_flags+0x5c8/0x3b40 [ 24.846379][ T298] ? security_file_open+0x62/0xa0 [ 24.851237][ T298] ? do_dentry_open+0x346/0x1250 [ 24.856013][ T298] ? stack_trace_snprint+0xf0/0xf0 [ 24.860963][ T298] ? audit_log_end+0x1f2/0x240 [ 24.865650][ T298] ? ovl_maybe_copy_up+0x190/0x190 [ 24.870594][ T298] ? kernel_text_address+0xa9/0xe0 [ 24.875728][ T298] ? __kernel_text_address+0xd/0x40 [ 24.880774][ T298] ? unwind_get_return_address+0x4d/0x90 [ 24.886313][ T298] ? arch_stack_walk+0xf3/0x140 [ 24.891003][ T298] ? stack_trace_save+0x113/0x1c0 [ 24.896548][ T298] ? stack_trace_snprint+0xf0/0xf0 [ 24.901495][ T298] ? avc_has_perm_noaudit+0x348/0x430 [ 24.906712][ T298] ? memcpy+0x56/0x70 [ 24.910528][ T298] ? avc_has_perm_noaudit+0x2dd/0x430 [ 24.915741][ T298] ? mnt_want_write+0x231/0x300 [ 24.920433][ T298] ovl_maybe_copy_up+0x15a/0x190 [ 24.925196][ T298] ovl_open+0x108/0x2a0 [ 24.929185][ T298] ? ovl_mmap+0x450/0x450 [ 24.934657][ T298] ? __kasan_check_read+0x11/0x20 [ 24.939510][ T298] ? ovl_mmap+0x450/0x450 [ 24.943717][ T298] do_dentry_open+0x891/0x1250 [ 24.948721][ T298] dentry_open+0xb8/0x100 [ 24.952999][ T298] file_open+0x2a7/0x650 [ 24.957138][ T298] ? incfs_file_mmap+0x120/0x120 [ 24.962886][ T298] ? fsnotify_perm+0x470/0x5d0 [ 24.967589][ T298] ? incfs_file_mmap+0x120/0x120 [ 24.972529][ T298] do_dentry_open+0x891/0x1250 [ 24.977167][ T298] vfs_open+0x73/0x80 [ 24.980980][ T298] path_openat+0x2532/0x2d60 [ 24.985445][ T298] ? kasan_save_alloc_info+0x1f/0x30 [ 24.990528][ T298] ? slab_post_alloc_hook+0x53/0x2c0 [ 24.995662][ T298] ? getname+0x19/0x20 [ 24.999571][ T298] ? do_filp_open+0x480/0x480 [ 25.004070][ T298] do_filp_open+0x230/0x480 [ 25.008409][ T298] ? vfs_tmpfile+0x480/0x480 [ 25.012835][ T298] ? alloc_fd+0x4fa/0x5a0 [ 25.017000][ T298] do_sys_openat2+0x13f/0x850 [ 25.021513][ T298] ? memset+0x35/0x40 [ 25.025331][ T298] ? do_sys_open+0x220/0x220 [ 25.029770][ T298] ? ptrace_notify+0x249/0x350 [ 25.034817][ T298] __x64_sys_openat+0x243/0x290 [ 25.039487][ T298] ? __ia32_sys_open+0x270/0x270 [ 25.044280][ T298] ? syscall_enter_from_user_mode+0x6a/0x190 [ 25.050075][ T298] do_syscall_64+0x3d/0xb0 [ 25.054327][ T298] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 25.060055][ T298] RIP: 0033:0x7f479e2c3019 [ 25.064311][ T298] Code: 48 83 c4 28 c3 e8 67 17 00 00 0f 1f 80 00 00 00 00 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 [ 25.083762][ T298] RSP: 002b:00007ffcd6f3d108 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 [ 25.092047][ T298] RAX: ffffffffffffffda RBX: 00007ffcd6f3d110 RCX: 00007f479e2c3019 [ 25.099819][ T298] RDX: 0000000000000002 RSI: 0000000020000080 RDI: 0000000000000004 [ 25.107621][ T298] RBP: 00007ffcd6f3d118 R08: 00007f479e2900a0 R09: 00007f479e2900a0 [ 25.115435][ T298] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 25.123249][ T298] R13: 00007ffcd6f3d378 R14: 0000000000000001 R15: 0000000000000001 [ 25.131059][ T298] [ 25.133918][ T298] Modules linked in: [ 25.137780][ T298] ---[ end trace 0000000000000000 ]--- [ 25.143047][ T298] RIP: 0010:security_inode_getattr+0x47/0x130 [ 25.149494][ T298] Code: 30 ff 49 8d 5f 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 c7 1c 77 ff 48 8b 1b 48 83 c3 30 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 aa 1c 77 ff 48 8b 1b 48 83 c3 0c [ 25.168995][ T298] RSP: 0018:ffffc90000e86eb8 EFLAGS: 00010206 [ 25.174801][ T298] RAX: 0000000000000006 RBX: 0000000000000030 RCX: ffff8881095a5100 [ 25.183234][ T298] RDX: 0000000000000000 RSI: ffffc90000e873a0 RDI: ffffc90000e87390 [ 25.191076][ T298] RBP: ffffc90000e86ee0 R08: dffffc0000000000 R09: ffffc90000e87390 [ 25.198881][ T298] R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000e873a0 [ 25.206685][ T298] R13: dffffc0000000000 R14: ffffc90000e87390 R15: ffffc90000e87390 [ 25.214577][ T298] FS: 0000555555f84480(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 25.223412][ T298] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.229821][ T298] CR2: 0000000000000000 CR3: 0000000109461000 CR4: 00000000003506a0 [ 25.237795][ T298] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.245571][ T298] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.253471][ T298] Kernel panic - not syncing: Fatal exception [ 25.259399][ T298] Kernel Offset: disabled [ 25.263595][ T298] Rebooting in 86400 seconds..