./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1186087261 <...> Warning: Permanently added '10.128.1.31' (ED25519) to the list of known hosts. execve("./syz-executor1186087261", ["./syz-executor1186087261"], 0x7ffd6d056e40 /* 10 vars */) = 0 brk(NULL) = 0x5555787f6000 brk(0x5555787f6d40) = 0x5555787f6d40 arch_prctl(ARCH_SET_FS, 0x5555787f63c0) = 0 set_tid_address(0x5555787f6690) = 301 set_robust_list(0x5555787f66a0, 24) = 0 rseq(0x5555787f6ce0, 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-executor1186087261", 4096) = 28 getrandom("\x50\x0f\xf4\x68\xf2\xa8\xab\x45", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555787f6d40 brk(0x555578817d40) = 0x555578817d40 brk(0x555578818000) = 0x555578818000 mprotect(0x7fec3c5c0000, 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, 0executing program ) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 write(1, "executing program\n", 18) = 18 futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000) = 0 rt_sigaction(SIGRT_1, {sa_handler=0x7fec3c55f3e0, sa_mask=[], sa_flags=SA_RESTORER|SA_ONSTACK|SA_RESTART|SA_SIGINFO, sa_restorer=0x7fec3c550a60}, 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) = 0x7fec3c4db000 mprotect(0x7fec3c4dc000, 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=0x7fec3c4fb990, parent_tid=0x7fec3c4fb990, exit_signal=0, stack=0x7fec3c4db000, stack_size=0x20300, tls=0x7fec3c4fb6c0} => {parent_tid=[302]}, 88) = 302 rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 futex(0x7fec3c5c6408, FUTEX_WAKE_PRIVATE, 1000000) = 0 futex(0x7fec3c5c640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x7fec3c4fb9a0, 24) = 0 [pid 302] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 302] seccomp(SECCOMP_SET_MODE_FILTER, 0, {len=1, filter=0x20000380}) = 0 [pid 302] futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 1 [pid 301] futex(0x7fec3c5c6408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7fec3c5c640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] mkdir("./file0", 000) = 0 [pid 302] futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 302] <... futex resumed>) = 1 [pid 301] futex(0x7fec3c5c6408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7fec3c5c640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] openat(AT_FDCWD, "/dev/fuse", O_RDWR|O_CREAT, 000) = 3 [pid 302] futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 302] futex(0x7fec3c5c6408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7fec3c5c6408, FUTEX_WAKE_PRIVATE, 1000000) = 1 [pid 301] futex(0x7fec3c5c640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 0 [pid 302] mount(NULL, "./file0", "fuse", 0, "fd=0x0000000000000003,rootmode=0000000000000000040000,user_id=0x0000000000000000,group_id=0000000000"...) = 0 [pid 302] futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7fec3c5c6408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7fec3c5c640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 1 [pid 302] 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\x24\x00\x00\x00\x00\x00\x02\x00\xfb\xff\xff\x73\x01\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 302] futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7fec3c5c6408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7fec3c5c640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 1 [pid 302] write(3, "\x50\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x00\x07\x00\x00\x00\x29\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 302] futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000 [pid 301] <... futex resumed>) = 0 [pid 301] futex(0x7fec3c5c6408, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] futex(0x7fec3c5c640c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000} [pid 302] <... futex resumed>) = 1 [ 29.062691][ T30] audit: type=1400 audit(1736548968.274:66): avc: denied { execmem } for pid=301 comm="syz-executor118" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 29.085258][ T30] audit: type=1400 audit(1736548968.294:67): avc: denied { read write } for pid=301 comm="syz-executor118" name="fuse" dev="devtmpfs" ino=91 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [pid 302] read(3, [pid 301] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 301] futex(0x7fec3c5c641c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 301] mmap(NULL, 135168, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS|MAP_STACK, -1, 0) = 0x7fec3c4ba000 [pid 301] mprotect(0x7fec3c4bb000, 131072, PROT_READ|PROT_WRITE) = 0 [pid 301] rt_sigprocmask(SIG_BLOCK, ~[], [], 8) = 0 [pid 301] clone3({flags=CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHAND|CLONE_THREAD|CLONE_SYSVSEM|CLONE_SETTLS|CLONE_PARENT_SETTID|CLONE_CHILD_CLEARTID, child_tid=0x7fec3c4da990, parent_tid=0x7fec3c4da990, exit_signal=0, stack=0x7fec3c4ba000, stack_size=0x20300, tls=0x7fec3c4da6c0} => {parent_tid=[304]}, 88) = 304 [pid 301] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 301] futex(0x7fec3c5c6418, FUTEX_WAKE_PRIVATE, 1000000) = 0 [ 29.108802][ T30] audit: type=1400 audit(1736548968.294:68): avc: denied { open } for pid=301 comm="syz-executor118" path="/dev/fuse" dev="devtmpfs" ino=91 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fuse_device_t tclass=chr_file permissive=1 [ 29.132058][ T30] audit: type=1400 audit(1736548968.304:69): avc: denied { mounton } for pid=301 comm="syz-executor118" 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 301] futex(0x7fec3c5c641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=50000000}./strace-static-x86_64: Process 304 attached [pid 304] set_robust_list(0x7fec3c4da9a0, 24) = 0 [pid 304] rt_sigprocmask(SIG_SETMASK, [], NULL, 8) = 0 [pid 304] rename("./file0/../file0/file0", "./file0/../file0/file0" [pid 302] <... 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\x30\x01\x00\x00\x00\x00\x00\x00\x66\x69\x6c\x65\x30\x00", 8231) = 46 [pid 302] write(3, "\xab\x00\x00\x00\x00\x00\x00\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\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\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\x09\x00\x00\x00\x00\x00\x00\x00\x0d\x00\x00\x00"..., 171) = 171 [pid 302] futex(0x7fec3c5c640c, FUTEX_WAKE_PRIVATE, 1000000) = 0 [pid 302] futex(0x7fec3c5c6408, FUTEX_WAIT_PRIVATE, 0, NULL [pid 301] <... futex resumed>) = -1 ETIMEDOUT (Connection timed out) [pid 301] futex(0x7fec3c5c641c, FUTEX_WAIT_PRIVATE, 0, {tv_sec=0, tv_nsec=0}) = -1 ETIMEDOUT (Connection timed out) [ 29.156522][ T30] audit: type=1400 audit(1736548968.304:70): avc: denied { mount } for pid=301 comm="syz-executor118" name="/" dev="fuse" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [ 29.159012][ T304] general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN [ 29.189937][ T304] KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [ 29.198191][ T304] CPU: 1 PID: 304 Comm: syz-executor118 Not tainted 5.15.175-syzkaller-00803-g19092c8155b4 #0 [ 29.208254][ T304] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 29.218155][ T304] RIP: 0010:do_renameat2+0x6fd/0x1480 [ 29.223354][ T304] Code: f2 e8 67 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 d7 b9 b1 ff 41 89 de 48 8b 5c 24 18 e9 6f 05 00 00 49 89 de 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 8a 07 00 00 48 89 5c 24 40 8b 1b be 00 [ 29.242794][ T304] RSP: 0018:ffffc90000997c20 EFLAGS: 00010206 [ 29.248699][ T304] RAX: 000000000000001b RBX: 000000000000001b RCX: ffff88810cd92780 [ 29.256508][ T304] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 29.264320][ T304] RBP: ffffc90000997ee8 R08: ffffffff81c0ec78 R09: ffffed1024258d82 [ 29.272131][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 29.279940][ T304] R13: ffffc90000997e08 R14: 0000000000000003 R15: ffff8881212c6be0 [ 29.287753][ T304] FS: 00007fec3c4da6c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 29.296523][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.302941][ T304] CR2: 00007fec3c53ae60 CR3: 000000011da9e000 CR4: 00000000003506a0 [pid 301] exit_group(0) = ? [pid 302] <... futex resumed>) = ? [ 29.310757][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.318571][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.326377][ T304] Call Trace: [ 29.329501][ T304] [ 29.332279][ T304] ? __die_body+0x62/0xb0 [ 29.336447][ T304] ? die_addr+0x9f/0xd0 [ 29.340441][ T304] ? exc_general_protection+0x311/0x4b0 [ 29.345822][ T304] ? __kasan_check_write+0x14/0x20 [ 29.350767][ T304] ? asm_exc_general_protection+0x27/0x30 [ 29.356322][ T304] ? fast_dput+0x78/0x2a0 [ 29.360488][ T304] ? do_renameat2+0x6fd/0x1480 [ 29.365091][ T304] ? fsnotify_move+0x460/0x460 [ 29.369691][ T304] ? getname_flags+0x1fd/0x520 [ 29.374286][ T304] __x64_sys_rename+0x86/0x90 [ 29.378799][ T304] x64_sys_call+0x266/0x9a0 [ 29.383138][ T304] do_syscall_64+0x3b/0xb0 [ 29.387393][ T304] ? clear_bhb_loop+0x35/0x90 [ 29.391907][ T304] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 29.397639][ T304] RIP: 0033:0x7fec3c539539 [ 29.401889][ T304] 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 [ 29.421328][ T304] RSP: 002b:00007fec3c4da218 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 29.429576][ T304] RAX: ffffffffffffffda RBX: 00007fec3c5c6418 RCX: 00007fec3c539539 [ 29.437473][ T304] RDX: 00007fec3c516cb6 RSI: 0000000020000140 RDI: 0000000020000100 [ 29.445287][ T304] RBP: 00007fec3c5c6410 R08: 00007ffe085dfea7 R09: 0000000000000000 [ 29.453093][ T304] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fec3c593034 [pid 302] +++ exited with 0 +++ [ 29.460913][ T304] R13: 000000000000006e R14: 0030656c69662f30 R15: 00007fec3c593054 [ 29.468724][ T304] [ 29.471581][ T304] Modules linked in: [ 29.475942][ T304] ---[ end trace b9de90ce27ca0ebb ]--- [ 29.481292][ T304] RIP: 0010:do_renameat2+0x6fd/0x1480 [ 29.486430][ T304] Code: f2 e8 67 f0 fe ff 48 89 c3 48 3d 01 f0 ff ff 72 12 e8 d7 b9 b1 ff 41 89 de 48 8b 5c 24 18 e9 6f 05 00 00 49 89 de 49 c1 ee 03 <43> 0f b6 04 26 84 c0 0f 85 8a 07 00 00 48 89 5c 24 40 8b 1b be 00 [ 29.507151][ T304] RSP: 0018:ffffc90000997c20 EFLAGS: 00010206 [ 29.513190][ T304] RAX: 000000000000001b RBX: 000000000000001b RCX: ffff88810cd92780 [ 29.521130][ T304] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000000 [ 29.529040][ T304] RBP: ffffc90000997ee8 R08: ffffffff81c0ec78 R09: ffffed1024258d82 [ 29.536919][ T304] R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 [ 29.544788][ T304] R13: ffffc90000997e08 R14: 0000000000000003 R15: ffff8881212c6be0 [ 29.552716][ T304] FS: 00007fec3c4da6c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 29.561488][ T304] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.567878][ T304] CR2: 00007fec3c590118 CR3: 000000011da9e000 CR4: 00000000003506b0 [ 29.575849][ T304] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.583623][ T304] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.591451][ T304] Kernel panic - not syncing: Fatal exception [ 29.597437][ T304] Kernel Offset: disabled [ 29.601684][ T304] Rebooting in 86400 seconds..