./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4065497988 <...> Warning: Permanently added '10.128.0.117' (ED25519) to the list of known hosts. execve("./syz-executor4065497988", ["./syz-executor4065497988"], 0x7ffc765610b0 /* 10 vars */) = 0 brk(NULL) = 0x55558b4a4000 brk(0x55558b4a4d00) = 0x55558b4a4d00 arch_prctl(ARCH_SET_FS, 0x55558b4a4380) = 0 set_tid_address(0x55558b4a4650) = 5068 set_robust_list(0x55558b4a4660, 24) = 0 rseq(0x55558b4a4ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4065497988", 4096) = 28 getrandom("\x36\x92\x67\x9b\xa7\xfa\x4d\xc1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55558b4a4d00 brk(0x55558b4c5d00) = 0x55558b4c5d00 brk(0x55558b4c6000) = 0x55558b4c6000 mprotect(0x7f40aef11000, 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 mkdir("/syzcgroup", 0777) = 0 mkdir("/syzcgroup/unified", 0777) = 0 mount("none", "/syzcgroup/unified", "cgroup2", 0, NULL) = 0 chmod("/syzcgroup/unified", 0777) = 0 [ 79.100605][ T28] audit: type=1400 audit(1712289643.928:87): avc: denied { execmem } for pid=5068 comm="syz-executor406" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 openat(AT_FDCWD, "/syzcgroup/unified/cgroup.subtree_control", O_WRONLY) = 3 write(3, "+cpu", 4) = 4 write(3, "+io", 3) = 3 write(3, "+pids", 5) = 5 close(3) = 0 mkdir("/syzcgroup/net", 0777) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "net") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio") = 0 [ 79.132879][ T28] audit: type=1400 audit(1712289643.958:88): avc: denied { mounton } for pid=5068 comm="syz-executor406" path="/syzcgroup/unified" dev="sda1" ino=1927 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 79.156109][ T28] audit: type=1400 audit(1712289643.958:89): avc: denied { mount } for pid=5068 comm="syz-executor406" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 79.191807][ T5068] cgroup: Unknown subsys name 'net' umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "devices") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "blkio") = 0 umount2("/syzcgroup/net", 0) = 0 mount("none", "/syzcgroup/net", "cgroup", 0, "freezer") = 0 umount2("/syzcgroup/net", 0) = 0 [ 79.212124][ T28] audit: type=1400 audit(1712289644.038:90): avc: denied { unmount } for pid=5068 comm="syz-executor406" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/net", "cgroup", 0, "net_prio,devices,blkio,freezer") = 0 chmod("/syzcgroup/net", 0777) = 0 mkdir("/syzcgroup/cpu", 0777) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuacct") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "hugetlb") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "rlimit") = -1 EINVAL (Invalid argument) mount("none", "/syzcgroup/cpu", "cgroup", 0, "memory") = 0 umount2("/syzcgroup/cpu", 0) = 0 mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) [ 79.408692][ T5068] cgroup: Unknown subsys name 'rlimit' mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = ? ERESTARTNOINTR (To be restarted) mount("none", "/syzcgroup/cpu", "cgroup", 0, "cpuset,cpuacct,hugetlb,memory") = 0 chmod("/syzcgroup/cpu", 0777) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cgroup.clone_children", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/syzcgroup/cpu/cpuset.memory_pressure_enabled", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 mkdir("./syzkaller.Pyl3yY", 0700) = 0 chmod("./syzkaller.Pyl3yY", 0777) = 0 chdir("./syzkaller.Pyl3yY") = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5069 attached , child_tidptr=0x55558b4a4650) = 5069 [pid 5069] set_robust_list(0x55558b4a4660, 24) = 0 [pid 5069] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5069] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5069] setsid() = 1 [pid 5069] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5069] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5069] unshare(CLONE_NEWNS) = 0 [ 79.621744][ T28] audit: type=1400 audit(1712289644.448:91): avc: denied { mounton } for pid=5069 comm="syz-executor406" path="/sys/fs/fuse/connections" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=dir permissive=1 [ 79.646287][ T28] audit: type=1400 audit(1712289644.448:92): avc: denied { mount } for pid=5069 comm="syz-executor406" name="/" dev="fusectl" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fusefs_t tclass=filesystem permissive=1 [pid 5069] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5069] unshare(CLONE_NEWIPC) = 0 [pid 5069] unshare(CLONE_NEWCGROUP) = 0 [pid 5069] unshare(CLONE_NEWUTS) = 0 [pid 5069] unshare(CLONE_SYSVSEM) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "16777216", 8) = 8 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "536870912", 9) = 9 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "8192", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024", 4) = 4 [pid 5069] close(3) = 0 [pid 5069] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5069] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5069] close(3) = 0 [pid 5069] getpid() = 1 [pid 5069] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 90 90 e9 a8 f9 ff ff e8 ef 86 f0 f7 4c 89 fe 4c 89 ef e8 e4 [ 80.131836][ T5072] RSP: 0018:ffffc9000341fb70 EFLAGS: 00010282 [ 80.138416][ T5072] RAX: 0000000000000000 RBX: 1ffff92000683f74 RCX: ffffffff814fafe9 [ 80.146828][ T5072] RDX: ffff888026285a00 RSI: ffffffff814faff6 RDI: 0000000000000001 [ 80.155530][ T5072] RBP: ffffc9000341fd10 R08: 0000000000000001 R09: 0000000000000000 [ 80.163698][ T5072] R10: 0000000000000001 R11: 0000000000000001 R12: 000000000000000d [ 80.172105][ T5072] R13: ffff888075dea000 R14: 0000000000000001 R15: 000000000000001c [ 80.180511][ T5072] FS: 000055558b4a4380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 80.189719][ T5072] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.196960][ T5072] CR2: 00007f40aeec5d50 CR3: 000000007fdfe000 CR4: 00000000003506f0 [ 80.204946][ T5072] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.213131][ T5072] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.221381][ T5072] Call Trace: [ 80.224755][ T5072] [ 80.227760][ T5072] ? show_regs+0x8c/0xa0 [ 80.232140][ T5072] ? __warn+0xe5/0x390 [ 80.236538][ T5072] ? packet_setsockopt+0x1e33/0x23c0 [ 80.241874][ T5072] ? report_bug+0x3c0/0x580 [ 80.247194][ T5072] ? handle_bug+0x3d/0x70 [ 80.252087][ T5072] ? exc_invalid_op+0x17/0x50 [ 80.257512][ T5072] ? asm_exc_invalid_op+0x1a/0x20 [ 80.262769][ T5072] ? __warn_printk+0x199/0x350 [ 80.268011][ T5072] ? __warn_printk+0x1a6/0x350 [ 80.273187][ T5072] ? packet_setsockopt+0x1e33/0x23c0 [ 80.279073][ T5072] ? __pfx_packet_setsockopt+0x10/0x10 [ 80.284827][ T5072] ? __pfx___cgroup_bpf_run_filter_setsockopt+0x10/0x10 [ 80.292425][ T5072] ? selinux_socket_setsockopt+0x6a/0x80 [ 80.298339][ T5072] ? __pfx_packet_setsockopt+0x10/0x10 [ 80.304034][ T5072] do_sock_setsockopt+0x222/0x480 [ 80.310223][ T5072] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 80.316750][ T5072] ? cgroup_update_frozen+0x144/0x6b0 [ 80.322341][ T5072] ? __fget_light+0x176/0x210 [ 80.327190][ T5072] __sys_setsockopt+0x1a4/0x270 [ 80.332525][ T5072] ? __pfx___sys_setsockopt+0x10/0x10 [ 80.338058][ T5072] ? __pfx_restore_fpregs_from_fpstate+0x10/0x10 [ 80.344591][ T5072] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.349877][ T5072] ? lockdep_hardirqs_on+0x7c/0x110 [ 80.355118][ T5072] __x64_sys_setsockopt+0xbd/0x160 [ 80.360358][ T5072] do_syscall_64+0xd2/0x260 [ 80.364988][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 80.370971][ T5072] RIP: 0033:0x7f40aee9dd59 [ 80.375405][ T5072] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 18 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 [ 80.395116][ T5072] RSP: 002b:00007fff69e6cd58 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 80.403933][ T5072] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f40aee9dd59 [ 80.411996][ T5072] RDX: 000000000000000d RSI: 0000000000000107 RDI: 0000000000000006 [ 80.420545][ T5072] RBP: 0000000000000000 R08: 000000000000001c R09: 0000000000000000 [ 80.428741][ T5072] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000 [ 80.436971][ T5072] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 80.444989][ T5072] [ 80.448112][ T5072] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 80.455424][ T5072] CPU: 0 PID: 5072 Comm: syz-executor406 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 80.465494][ T5072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 80.475557][ T5072] Call Trace: [ 80.478927][ T5072] [ 80.481895][ T5072] dump_stack_lvl+0x3d/0x1f0 [ 80.486522][ T5072] panic+0x6f5/0x7a0 [ 80.490420][ T5072] ? __pfx_panic+0x10/0x10 [ 80.494848][ T5072] ? show_trace_log_lvl+0x363/0x500 [ 80.500062][ T5072] ? check_panic_on_warn+0x1f/0xb0 [ 80.505196][ T5072] ? packet_setsockopt+0x1e33/0x23c0 [ 80.510507][ T5072] check_panic_on_warn+0xab/0xb0 [ 80.515487][ T5072] __warn+0xf1/0x390 [ 80.519412][ T5072] ? packet_setsockopt+0x1e33/0x23c0 [ 80.524793][ T5072] report_bug+0x3c0/0x580 [ 80.529153][ T5072] handle_bug+0x3d/0x70 [ 80.533342][ T5072] exc_invalid_op+0x17/0x50 [ 80.537856][ T5072] asm_exc_invalid_op+0x1a/0x20 [ 80.542728][ T5072] RIP: 0010:packet_setsockopt+0x1e33/0x23c0 [ 80.548648][ T5072] Code: 23 87 f0 f7 c6 05 38 a8 eb 05 01 90 b9 10 00 00 00 48 c7 c2 80 9f 3d 8c be 1c 00 00 00 48 c7 c7 e0 9c 3d 8c e8 9e 3c b3 f7 90 <0f> 0b 90 90 e9 a8 f9 ff ff e8 ef 86 f0 f7 4c 89 fe 4c 89 ef e8 e4 [ 80.568360][ T5072] RSP: 0018:ffffc9000341fb70 EFLAGS: 00010282 [ 80.574439][ T5072] RAX: 0000000000000000 RBX: 1ffff92000683f74 RCX: ffffffff814fafe9 [ 80.582424][ T5072] RDX: ffff888026285a00 RSI: ffffffff814faff6 RDI: 0000000000000001 [ 80.590723][ T5072] RBP: ffffc9000341fd10 R08: 0000000000000001 R09: 0000000000000000 [ 80.598872][ T5072] R10: 0000000000000001 R11: 0000000000000001 R12: 000000000000000d [ 80.606935][ T5072] R13: ffff888075dea000 R14: 0000000000000001 R15: 000000000000001c [ 80.615116][ T5072] ? __warn_printk+0x199/0x350 [ 80.619936][ T5072] ? __warn_printk+0x1a6/0x350 [ 80.624739][ T5072] ? __pfx_packet_setsockopt+0x10/0x10 [ 80.630384][ T5072] ? __pfx___cgroup_bpf_run_filter_setsockopt+0x10/0x10 [ 80.637693][ T5072] ? selinux_socket_setsockopt+0x6a/0x80 [ 80.643428][ T5072] ? __pfx_packet_setsockopt+0x10/0x10 [ 80.648899][ T5072] do_sock_setsockopt+0x222/0x480 [ 80.653937][ T5072] ? __pfx_do_sock_setsockopt+0x10/0x10 [ 80.659523][ T5072] ? cgroup_update_frozen+0x144/0x6b0 [ 80.665528][ T5072] ? __fget_light+0x176/0x210 [ 80.670256][ T5072] __sys_setsockopt+0x1a4/0x270 [ 80.675238][ T5072] ? __pfx___sys_setsockopt+0x10/0x10 [ 80.680816][ T5072] ? __pfx_restore_fpregs_from_fpstate+0x10/0x10 [ 80.687183][ T5072] ? _raw_spin_unlock_irq+0x23/0x50 [ 80.692401][ T5072] ? lockdep_hardirqs_on+0x7c/0x110 [ 80.697713][ T5072] __x64_sys_setsockopt+0xbd/0x160 [ 80.702924][ T5072] do_syscall_64+0xd2/0x260 [ 80.707825][ T5072] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 80.713733][ T5072] RIP: 0033:0x7f40aee9dd59 [ 80.718264][ T5072] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 18 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 [ 80.738263][ T5072] RSP: 002b:00007fff69e6cd58 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 80.746822][ T5072] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f40aee9dd59 [ 80.754886][ T5072] RDX: 000000000000000d RSI: 0000000000000107 RDI: 0000000000000006 [ 80.763065][ T5072] RBP: 0000000000000000 R08: 000000000000001c R09: 0000000000000000 [ 80.771164][ T5072] R10: 0000000020000040 R11: 0000000000000246 R12: 0000000000000000 [ 80.779310][ T5072] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 80.787464][ T5072] [ 80.790568][ T5072] Kernel Offset: disabled [ 80.794952][ T5072] Rebooting in 86400 seconds..