./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2463772169 <...> Warning: Permanently added '10.128.1.160' (ED25519) to the list of known hosts. execve("./syz-executor2463772169", ["./syz-executor2463772169"], 0x7ffc8c5b62c0 /* 10 vars */) = 0 brk(NULL) = 0x55559539e000 brk(0x55559539ed40) = 0x55559539ed40 arch_prctl(ARCH_SET_FS, 0x55559539e3c0) = 0 set_tid_address(0x55559539e690) = 290 set_robust_list(0x55559539e6a0, 24) = 0 rseq(0x55559539ece0, 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-executor2463772169", 4096) = 28 getrandom("\x14\x30\x91\x74\xfb\xfd\xb1\xe0", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55559539ed40 brk(0x5555953bfd40) = 0x5555953bfd40 brk(0x5555953c0000) = 0x5555953c0000 mprotect(0x7fd7c38fc000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0executing program ) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 write(1, "executing program\n", 18) = 18 futex(0x7fd7c39023ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fd7c389b5a0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fd7c388cc20}, NULL, 8) = 0 rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0 mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd7c3817000 mprotect(0x7fd7c3818000, 131072, PROT_READ|PROT_WRITE) = 0 rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd7c3837990, parent_tid=0x7fd7c3837990, exit_signal=0, stack=0x7fd7c3817000, stack_size=0x20300, tls=0x7fd7c38376c0} => {parent_tid=[291]}, 88) = 291 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7fd7c39023e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7fd7c39023ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 291 attached [pid 291] set_robust_list(0x7fd7c38379a0, 24) = 0 [pid 291] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 291] mkdir("./file0", 000) = 0 [pid 291] futex(0x7fd7c39023ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7fd7c39023e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7fd7c39023ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... futex resumed>) = 1 [pid 291] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 291] futex(0x7fd7c39023ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7fd7c39023e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7fd7c39023ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... futex resumed>) = 1 [pid 291] mount(NULL, "./file0", "fuse", 0, "fd=00000000000000000000003,rootmode=0000000000000000040000,user_id=00000000000000000000,group_id=000"...) = 0 [pid 291] futex(0x7fd7c39023ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7fd7c39023e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7fd7c39023ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... futex resumed>) = 1 [pid 291] read(3, "\x68\x00\x00\x00\x1a\x00\x00\x00\x02\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\x07\x00\x00\x00\x26\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x73\x09\x00\x00\x80\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"..., 8224) = 104 [pid 291] futex(0x7fd7c39023ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7fd7c39023e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7fd7c39023ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 291] <... futex resumed>) = 1 [pid 291] read(3, [pid 290] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 290] futex(0x7fd7c39023ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [pid 290] futex(0x7fd7c39023fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fd7c37f6000 [pid 290] mprotect(0x7fd7c37f7000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 290] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 290] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fd7c3816990, parent_tid=0x7fd7c3816990, exit_signal=0, stack=0x7fd7c37f6000, stack_size=0x20300, tls=0x7fd7c38166c0} => {parent_tid=[293]}, 88) = 293 [pid 290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 290] futex(0x7fd7c39023f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7fd7c39023fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=550000000}./strace-static-x86_64: Process 293 attached [pid 293] set_robust_list(0x7fd7c38169a0, 24) = 0 [pid 293] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 293] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_RAW_TRACEPOINT, insn_cnt=10, insns=0x200000000680, license=NULL, log_level=4, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_CGROUP_INET_INGRESS, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 148) = -1 EFAULT (Bad address) [pid 293] futex(0x7fd7c39023fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7fd7c39023f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7fd7c39023fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] <... futex resumed>) = 1 [pid 293] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x27\x00\x00\x00\x00\x00\x00\x00\x1a\x00\x01\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", 80) = 80 [pid 293] futex(0x7fd7c39023fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 290] <... futex resumed>) = 0 [pid 290] futex(0x7fd7c39023f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 290] futex(0x7fd7c39023fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 293] <... futex resumed>) = 1 [pid 293] rename("./file0/../file0/file0", "./file0/../file0/file0" [pid 291] <... read resumed>"\x2e\x00\x00\x00\x01\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x25\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8192) = 46 [pid 291] write(3, "\x95\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x03\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xfd\xff\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\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"..., 149) = 149 [pid 291] futex(0x7fd7c39023ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 20.716518][ T28] audit: type=1400 audit(1752603483.067:64): avc: denied { execmem } for pid=290 comm="syz-executor246" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 20.736184][ T28] audit: type=1400 audit(1752603483.067:65): avc: denied { read write } for pid=290 comm="syz-executor246" name="fuse" dev="devtmpfs" ino=93 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 20.759886][ T28] audit: type=1400 audit(1752603483.067:66): avc: denied { open } for pid=290 comm="syz-executor246" path="/dev/fuse" dev="devtmpfs" ino=93 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 20.779578][ T293] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 20.783847][ T28] audit: type=1400 audit(1752603483.067:67): avc: denied { mounton } for pid=290 comm="syz-executor246" path="/root/file0" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 20.794918][ T293] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 20.794932][ T293] CPU: 1 PID: 293 Comm: syz-executor246 Not tainted 6.1.141-syzkaller-00038-ge2deb0b42a3a #0 [ 20.794946][ T293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 20.794953][ T293] RIP: 0010:do_renameat2+0x49f/0xf60 [ 20.818834][ T28] audit: type=1400 audit(1752603483.067:68): avc: denied { mount } for pid=290 comm="syz-executor246" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 20.826011][ T293] Code: ff 48 89 c2 48 3d 01 f0 ff ff 72 0d 49 89 d5 e8 07 66 af ff e9 36 04 00 00 49 89 d4 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 04 84 c0 48 89 54 24 10 0f 85 e7 05 00 00 8b 1a be 00 [ 20.836425][ T28] audit: type=1400 audit(1752603483.117:69): avc: denied { bpf } for pid=290 comm="syz-executor246" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 20.846188][ T293] RSP: 0018:ffffc90000e57d00 EFLAGS: 00010247 [ 20.846219][ T293] RAX: dffffc0000000000 RBX: ffff88810ee1b300 RCX: ffff88810e10e540 [ 20.846232][ T293] RDX: 0000000000000005 RSI: 0000000000000004 RDI: ffff88810e10e540 [ 20.851742][ T28] audit: type=1400 audit(1752603483.117:70): avc: denied { prog_load } for pid=290 comm="syz-executor246" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 20.873514][ T293] RBP: ffffc90000e57ed8 R08: dffffc0000000000 R09: fffff520001caf7d [ 20.873539][ T293] R10: fffff520001caf7d R11: 1ffff920001caf7c R12: 0000000000000000 [ 20.873549][ T293] R13: 0000000000000000 R14: ffffc90000e57e01 R15: ffff888124887110 [ 20.873558][ T293] FS: 00007fd7c38166c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 20.873571][ T293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 20.873581][ T293] CR2: 00000000026f72d8 CR3: 0000000121d99000 CR4: 00000000003506a0 [ 20.893595][ T28] audit: type=1400 audit(1752603483.177:71): avc: denied { read } for pid=85 comm="syslogd" name="log" dev="sda1" ino=2010 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:var_t tclass=lnk_file permissive=1 [ 20.913803][ T293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 20.913818][ T293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 20.913827][ T293] Call Trace: [ 20.913831][ T293] [ 20.913841][ T293] ? __cfi_do_renameat2+0x10/0x10 [ 20.920208][ T28] audit: type=1400 audit(1752603483.177:72): avc: denied { search } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 20.927838][ T293] ? strncpy_from_user+0x17a/0x2d0 [ 20.935959][ T28] audit: type=1400 audit(1752603483.177:73): avc: denied { write } for pid=85 comm="syslogd" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 20.954940][ T293] ? getname_flags+0x206/0x500 [ 20.954970][ T293] __x64_sys_rename+0x86/0x90 [ 20.954987][ T293] x64_sys_call+0x300/0x9a0 [ 21.112076][ T293] do_syscall_64+0x4c/0xa0 [ 21.116474][ T293] ? clear_bhb_loop+0x30/0x80 [ 21.121156][ T293] ? clear_bhb_loop+0x30/0x80 [ 21.125812][ T293] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 21.131691][ T293] RIP: 0033:0x7fd7c38756f9 [ 21.136102][ T293] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 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 b0 ff ff ff f7 d8 64 89 01 48 [ 21.155681][ T293] RSP: 002b:00007fd7c3816218 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [pid 291] futex(0x7fd7c39023e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 290] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [ 21.164069][ T293] RAX: ffffffffffffffda RBX: 00007fd7c39023f8 RCX: 00007fd7c38756f9 [ 21.172016][ T293] RDX: 00007fd7c38756f9 RSI: 0000200000000140 RDI: 0000200000000100 [ 21.179964][ T293] RBP: 00007fd7c39023f0 R08: 0000000000000000 R09: 0000000000000000 [ 21.187911][ T293] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd7c38cf02c [ 21.195861][ T293] R13: 000020000000c280 R14: 0000200000000100 R15: 0000000000000000 [ 21.203814][ T293] [ 21.206810][ T293] Modules linked in: [ 21.211295][ T293] ---[ end trace 0000000000000000 ]--- [ 21.216766][ T293] RIP: 0010:do_renameat2+0x49f/0xf60 [ 21.222209][ T293] Code: ff 48 89 c2 48 3d 01 f0 ff ff 72 0d 49 89 d5 e8 07 66 af ff e9 36 04 00 00 49 89 d4 49 c1 ec 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 04 84 c0 48 89 54 24 10 0f 85 e7 05 00 00 8b 1a be 00 [ 21.241911][ T293] RSP: 0018:ffffc90000e57d00 EFLAGS: 00010247 [ 21.247982][ T293] RAX: dffffc0000000000 RBX: ffff88810ee1b300 RCX: ffff88810e10e540 [ 21.256059][ T293] RDX: 0000000000000005 RSI: 0000000000000004 RDI: ffff88810e10e540 [ 21.264176][ T293] RBP: ffffc90000e57ed8 R08: dffffc0000000000 R09: fffff520001caf7d [ 21.272220][ T293] R10: fffff520001caf7d R11: 1ffff920001caf7c R12: 0000000000000000 [ 21.280206][ T293] R13: 0000000000000000 R14: ffffc90000e57e01 R15: ffff888124887110 [ 21.288176][ T293] FS: 00007fd7c38166c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 21.297115][ T293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 21.303716][ T293] CR2: 00000000026f72d8 CR3: 0000000121d99000 CR4: 00000000003506a0 [ 21.311738][ T293] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 21.319729][ T293] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 21.327689][ T293] Kernel panic - not syncing: Fatal exception [ 21.334002][ T293] Kernel Offset: disabled [ 21.338310][ T293] Rebooting in 86400 seconds..