./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1148826657 <...> [ 3.717903][ T24] audit: type=1400 audit(1726386369.690:9): avc: denied { append open } for pid=76 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 3.721823][ T24] audit: type=1400 audit(1726386369.690:10): avc: denied { getattr } for pid=76 comm="syslogd" path="/tmp/messages" dev="tmpfs" ino=2 scontext=system_u:system_r:syslogd_t tcontext=system_u:object_r:tmpfs_t tclass=file permissive=1 [ 4.036020][ T93] udevd[93]: starting version 3.2.11 [ 4.168103][ T94] udevd[94]: starting eudev-3.2.11 [ 12.389738][ T24] kauditd_printk_skb: 50 callbacks suppressed [ 12.389758][ T24] audit: type=1400 audit(1726386378.370:61): avc: denied { transition } for pid=215 comm="sshd" path="/bin/sh" dev="sda1" ino=89 scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.399071][ T24] audit: type=1400 audit(1726386378.380:62): avc: denied { noatsecure } for pid=215 comm="sshd" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.405355][ T24] audit: type=1400 audit(1726386378.380:63): avc: denied { write } for pid=215 comm="sh" path="pipe:[13018]" dev="pipefs" ino=13018 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:sshd_t tclass=fifo_file permissive=1 [ 12.412645][ T24] audit: type=1400 audit(1726386378.380:64): avc: denied { rlimitinh } for pid=215 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 12.419484][ T24] audit: type=1400 audit(1726386378.380:65): avc: denied { siginh } for pid=215 comm="sh" scontext=system_u:system_r:sshd_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 Warning: Permanently added '10.128.0.48' (ED25519) to the list of known hosts. execve("./syz-executor1148826657", ["./syz-executor1148826657"], 0x7ffda99fbdc0 /* 10 vars */) = 0 brk(NULL) = 0x5555923a3000 brk(0x5555923a3d40) = 0x5555923a3d40 arch_prctl(ARCH_SET_FS, 0x5555923a33c0) = 0 set_tid_address(0x5555923a3690) = 287 set_robust_list(0x5555923a36a0, 24) = 0 rseq(0x5555923a3ce0, 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-executor1148826657", 4096) = 28 getrandom("\x5c\x4a\x73\xdf\xd1\x41\x54\x9e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555923a3d40 brk(0x5555923c4d40) = 0x5555923c4d40 brk(0x5555923c5000) = 0x5555923c5000 mprotect(0x7f378f5cb000, 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, 0executing program ) = 0x21000000 write(1, "executing program\n", 18) = 18 futex(0x7f378f5d13ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7f378f568520, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7f378f559ba0}, 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) = 0x7f378f4e4000 mprotect(0x7f378f4e5000, 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=0x7f378f504990, parent_tid=0x7f378f504990, exit_signal=0, stack=0x7f378f4e4000, stack_size=0x20300, tls=0x7f378f5046c0} => {parent_tid=[288]}, 88) = 288 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7f378f5d13e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7f378f5d13ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 288 attached [pid 288] set_robust_list(0x7f378f5049a0, 24) = 0 [pid 288] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 288] mkdirat(AT_FDCWD, "./file0", 000) = 0 [pid 288] futex(0x7f378f5d13ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 287] <... futex resumed>) = 0 [pid 287] futex(0x7f378f5d13e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 287] futex(0x7f378f5d13ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 288] <... futex resumed>) = 1 [pid 288] openat(AT_FDCWD, "/dev/fuse", O_RDWR) = 3 [pid 288] futex(0x7f378f5d13ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 287] <... futex resumed>) = 0 [pid 287] futex(0x7f378f5d13e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 287] futex(0x7f378f5d13ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 288] <... futex resumed>) = 1 [pid 288] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=00000000000000000040000,user_id=00000000000000000000,group_id=0000000"...) = 0 [pid 288] futex(0x7f378f5d13ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 287] <... futex resumed>) = 0 [pid 287] futex(0x7f378f5d13e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 287] futex(0x7f378f5d13ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 288] <... futex resumed>) = 1 [pid 288] read(3, "\x38\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\x20\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x83", 8192) = 56 [pid 288] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x26\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", 80) = 80 [pid 288] futex(0x7f378f5d13ec, FUTEX_WAKE_PRIVATE, 1000000 [pid 287] <... futex resumed>) = 0 [pid 287] futex(0x7f378f5d13e8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 287] futex(0x7f378f5d13ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 288] <... futex resumed>) = 1 [ 22.003088][ T24] audit: type=1400 audit(1726386387.990:66): avc: denied { execmem } for pid=287 comm="syz-executor114" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.010200][ T24] audit: type=1400 audit(1726386387.990:67): avc: denied { read write } for pid=287 comm="syz-executor114" name="fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 22.016413][ T24] audit: type=1400 audit(1726386387.990:68): avc: denied { open } for pid=287 comm="syz-executor114" path="/dev/fuse" dev="devtmpfs" ino=90 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 22.021750][ T24] audit: type=1400 audit(1726386387.990:69): avc: denied { mounton } for pid=287 comm="syz-executor114" 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 288] read(3, [pid 287] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 287] futex(0x7f378f5d13fc, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 287] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7f378f4c3000 [pid 287] mprotect(0x7f378f4c4000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 287] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 287] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7f378f4e3990, parent_tid=0x7f378f4e3990, exit_signal=0, stack=0x7f378f4c3000, stack_size=0x20300, tls=0x7f378f4e36c0} => {parent_tid=[290]}, 88) = 290 [pid 287] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 287] futex(0x7f378f5d13f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 287] futex(0x7f378f5d13fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 290 attached [pid 290] set_robust_list(0x7f378f4e39a0, 24) = 0 [pid 290] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 290] openat(AT_FDCWD, "./file0", O_RDONLY [pid 288] <... read resumed>"\x30\x00\x00\x00\x1b\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\x22\x01\x00\x00\x00\x00\x00\x00\x00\x80\x00\x00\x00\x00\x00\x00", 8192) = 48 [pid 288] write(3, "\x20\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 32) = 32 [pid 288] futex(0x7f378f5d13ec, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 288] futex(0x7f378f5d13e8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 290] <... openat resumed>) = 4 [pid 290] futex(0x7f378f5d13fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 287] <... futex resumed>) = 0 [pid 287] futex(0x7f378f5d13e8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 288] <... futex resumed>) = 0 [pid 287] futex(0x7f378f5d13ec, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 288] renameat2(4, "./file1", 4, "./file0", RENAME_NOREPLACE|RENAME_WHITEOUT [pid 290] <... futex resumed>) = 1 [ 22.040217][ T24] audit: type=1400 audit(1726386387.990:70): avc: denied { mount } for pid=287 comm="syz-executor114" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [pid 290] futex(0x7f378f5d13f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 287] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 287] futex(0x7f378f5d13f8, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 287] futex(0x7f378f5d13fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 290] <... futex resumed>) = 0 [pid 290] read(3, "\x2e\x00\x00\x00\x01\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x20\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x31\x00", 8224) = 46 [pid 290] futex(0x7f378f5d13fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 287] <... futex resumed>) = 0 [pid 287] futex(0x7f378f5d13f8, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 287] futex(0x7f378f5d13fc, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 290] <... futex resumed>) = 1 [pid 290] write(3, "\xa0\x00\x00\x00\x00\x00\x00\x00\x06\x00\x00\x00\x00\x00\x00\x00\xfc\xff\xff\xff\xff\xff\xff\xff\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\x20\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"..., 160) = 160 [pid 290] futex(0x7f378f5d13fc, FUTEX_WAKE_PRIVATE, 1000000 [pid 287] <... futex resumed>) = 0 [pid 290] <... futex resumed>) = 1 [ 22.116251][ T288] general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN [ 22.127792][ T288] KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] [ 22.136025][ T288] CPU: 1 PID: 288 Comm: syz-executor114 Not tainted 5.10.225-syzkaller-00513-g8d23314f588a #0 [ 22.146090][ T288] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 22.156007][ T288] RIP: 0010:do_renameat2+0x790/0x1240 [ 22.161191][ T288] Code: ff ff 48 89 c3 48 3d 01 f0 ff ff 72 16 e8 78 52 b6 ff 41 89 dc 48 8b 1c 24 4c 8b 6c 24 58 e9 60 03 00 00 49 89 dc 49 c1 ec 03 <43> 0f b6 04 3c 84 c0 4c 8b 6c 24 58 0f 85 18 06 00 00 48 89 5c 24 [ 22.180636][ T288] RSP: 0000:ffffc9000092fce0 EFLAGS: 00010202 [ 22.186536][ T288] RAX: 0000000000000010 RBX: 0000000000000010 RCX: ffff88812134e2c0 [ 22.194354][ T288] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 22.202156][ T288] RBP: ffffc9000092fef0 R08: ffffffff81b68a38 R09: ffffed102395ca94 [pid 290] futex(0x7f378f5d13f8, FUTEX_WAIT_PRIVATE, 0, NULL [pid 287] exit_group(0) = ? [pid 290] <... futex resumed>) = ? [pid 290] +++ exited with 0 +++ [ 22.209975][ T288] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002 [ 22.217789][ T288] R13: 0000000000000000 R14: ffffc9000092fe01 R15: dffffc0000000000 [ 22.225604][ T288] FS: 00007f378f5046c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 22.234362][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.240867][ T288] CR2: 000055999adac118 CR3: 000000012125a000 CR4: 00000000003506a0 [ 22.248698][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.256495][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.264296][ T288] Call Trace: [ 22.267433][ T288] ? __die_body+0x62/0xb0 [ 22.271598][ T288] ? die_addr+0x9f/0xd0 [ 22.275593][ T288] ? exc_general_protection+0x3ff/0x490 [ 22.280983][ T288] ? asm_exc_general_protection+0x1e/0x30 [ 22.286522][ T288] ? fast_dput+0x78/0x2a0 [ 22.290690][ T288] ? do_renameat2+0x790/0x1240 [ 22.295292][ T288] ? fsnotify_move+0x290/0x290 [ 22.299893][ T288] __x64_sys_renameat2+0xdd/0xf0 [ 22.304663][ T288] do_syscall_64+0x34/0x70 [ 22.308917][ T288] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 22.314652][ T288] RIP: 0033:0x7f378f542679 [ 22.318908][ T288] 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 [ 22.338334][ T288] RSP: 002b:00007f378f504218 EFLAGS: 00000246 ORIG_RAX: 000000000000013c [ 22.346589][ T288] RAX: ffffffffffffffda RBX: 00007f378f5d13e8 RCX: 00007f378f542679 [ 22.354392][ T288] RDX: 0000000000000004 RSI: 0000000020000500 RDI: 0000000000000004 [ 22.362202][ T288] RBP: 00007f378f5d13e0 R08: 0000000000000005 R09: 0000000000000000 [ 22.370014][ T288] R10: 00000000200001c0 R11: 0000000000000246 R12: 00007f378f59e09c [ 22.377826][ T288] R13: 0030656c69662f2e R14: 00007f378f59e0ca R15: 0000002000000000 [ 22.385636][ T288] Modules linked in: [ 22.389517][ T288] ---[ end trace 9c565693487c8eb8 ]--- [ 22.394837][ T288] RIP: 0010:do_renameat2+0x790/0x1240 [ 22.400017][ T288] Code: ff ff 48 89 c3 48 3d 01 f0 ff ff 72 16 e8 78 52 b6 ff 41 89 dc 48 8b 1c 24 4c 8b 6c 24 58 e9 60 03 00 00 49 89 dc 49 c1 ec 03 <43> 0f b6 04 3c 84 c0 4c 8b 6c 24 58 0f 85 18 06 00 00 48 89 5c 24 [ 22.419450][ T288] RSP: 0000:ffffc9000092fce0 EFLAGS: 00010202 [ 22.425353][ T288] RAX: 0000000000000010 RBX: 0000000000000010 RCX: ffff88812134e2c0 [ 22.433153][ T288] RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000 [ 22.440973][ T288] RBP: ffffc9000092fef0 R08: ffffffff81b68a38 R09: ffffed102395ca94 [ 22.448762][ T288] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002 [ 22.456604][ T288] R13: 0000000000000000 R14: ffffc9000092fe01 R15: dffffc0000000000 [ 22.464405][ T288] FS: 00007f378f5046c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 22.473183][ T288] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 22.479575][ T288] CR2: 000055999adac118 CR3: 000000012125a000 CR4: 00000000003506a0 [ 22.487416][ T288] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 22.495212][ T288] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 22.503031][ T288] Kernel panic - not syncing: Fatal exception [ 22.509209][ T288] Kernel Offset: disabled [ 22.513337][ T288] Rebooting in 86400 seconds..