./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1364226870 <...> Warning: Permanently added '10.128.0.233' (ED25519) to the list of known hosts. execve("./syz-executor1364226870", ["./syz-executor1364226870"], 0x7ffe892fb5a0 /* 10 vars */) = 0 brk(NULL) = 0x555556d17000 brk(0x555556d17d00) = 0x555556d17d00 arch_prctl(ARCH_SET_FS, 0x555556d17380) = 0 set_tid_address(0x555556d17650) = 5059 set_robust_list(0x555556d17660, 24) = 0 rseq(0x555556d17ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1364226870", 4096) = 28 getrandom("\x56\x3a\xfa\x43\x11\x84\x3e\x8e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556d17d00 brk(0x555556d38d00) = 0x555556d38d00 brk(0x555556d39000) = 0x555556d39000 mprotect(0x7f0719f0e000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5060 attached , child_tidptr=0x555556d17650) = 5060 [pid 5060] set_robust_list(0x555556d17660, 24) = 0 [pid 5060] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5060] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5060] setsid() = 1 [pid 5060] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5060] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5060] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5060] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5060] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5060] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5060] unshare(CLONE_NEWNS) = 0 [pid 5060] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5060] unshare(CLONE_NEWIPC) = 0 [pid 5060] unshare(CLONE_NEWCGROUP) = 0 [pid 5060] unshare(CLONE_NEWUTS) = 0 [pid 5060] unshare(CLONE_SYSVSEM) = 0 [pid 5060] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "16777216", 8) = 8 [pid 5060] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "536870912", 9) = 9 [pid 5060] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1024", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "8192", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1024", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1024", 4) = 4 [pid 5060] close(3) = 0 [pid 5060] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5060] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5060] close(3) = 0 [pid 5060] getpid() = 1 [pid 5060] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 12]) = 0 [ 72.702059][ T5060] general protection fault, probably for non-canonical address 0xdffffc000000200c: 0000 [#1] PREEMPT SMP KASAN [ 72.713817][ T5060] KASAN: probably user-memory-access in range [0x0000000000010060-0x0000000000010067] [ 72.723434][ T5060] CPU: 1 PID: 5060 Comm: syz-executor136 Not tainted 6.7.0-rc6-syzkaller-01658-gc2b2ee36250d #0 [ 72.733842][ T5060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 [ 72.743898][ T5060] RIP: 0010:htb_tcf_block+0x3a/0xa0 [ 72.749120][ T5060] Code: f8 31 ff 48 89 de e8 f5 4f f1 f8 48 85 db 74 2f e8 5b 54 f1 f8 48 8d 7b 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4b 48 8b 5b 70 e8 37 54 f1 f8 48 89 d8 5b 5d c3 e8 [ 72.768715][ T5060] RSP: 0018:ffffc9000390f408 EFLAGS: 00010206 [ 72.774943][ T5060] RAX: dffffc0000000000 RBX: 000000000000fff2 RCX: ffffffff88962d0b [ 72.782985][ T5060] RDX: 000000000000200c RSI: ffffffff88962d15 RDI: 0000000000010062 [ 72.791027][ T5060] RBP: ffff888074ee6000 R08: 0000000000000007 R09: 0000000000000000 [ 72.799106][ T5060] R10: 000000000000fff2 R11: ffffffff81de56d2 R12: ffff88807f154000 [ 72.807140][ T5060] R13: ffffffff8bed4a60 R14: 0000000000000001 R15: ffffffff8f19a9a0 [ 72.815224][ T5060] FS: 0000555556d17380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 72.824316][ T5060] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.830987][ T5060] CR2: 0000000020005840 CR3: 00000000762cd000 CR4: 00000000003506f0 [ 72.838952][ T5060] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 72.846924][ T5060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 72.855070][ T5060] Call Trace: [ 72.858373][ T5060] [ 72.861464][ T5060] ? show_regs+0x8f/0xa0 [ 72.865720][ T5060] ? die_addr+0x4f/0xd0 [ 72.869880][ T5060] ? exc_general_protection+0x155/0x230 [ 72.875423][ T5060] ? asm_exc_general_protection+0x26/0x30 [ 72.881222][ T5060] ? __kasan_kmalloc+0xa2/0xb0 [ 72.885993][ T5060] ? htb_tcf_block+0x1b/0xa0 [ 72.890610][ T5060] ? htb_tcf_block+0x25/0xa0 [ 72.895227][ T5060] ? htb_tcf_block+0x3a/0xa0 [ 72.899810][ T5060] ? htb_tcf_block+0x25/0xa0 [ 72.904395][ T5060] qdisc_create+0x6b6/0x1430 [ 72.908975][ T5060] ? lock_acquire+0x1ae/0x520 [ 72.913648][ T5060] ? tc_get_qdisc+0xc20/0xc20 [ 72.918329][ T5060] tc_modify_qdisc+0x4d5/0x1c30 [ 72.923259][ T5060] ? qdisc_create+0x1430/0x1430 [ 72.928115][ T5060] ? bpf_lsm_capable+0x9/0x10 [ 72.932898][ T5060] ? qdisc_create+0x1430/0x1430 [ 72.937735][ T5060] rtnetlink_rcv_msg+0x3c7/0xe00 [ 72.942664][ T5060] ? rtnl_fill_vf+0x490/0x490 [ 72.947344][ T5060] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 72.953507][ T5060] ? lockdep_hardirqs_on_prepare+0x420/0x420 [ 72.959484][ T5060] netlink_rcv_skb+0x16b/0x440 [ 72.964245][ T5060] ? rtnl_fill_vf+0x490/0x490 [ 72.968933][ T5060] ? netlink_ack+0x1380/0x1380 [ 72.973681][ T5060] ? lock_sync+0x190/0x190 [ 72.978093][ T5060] ? netlink_deliver_tap+0x1a0/0xd00 [ 72.983363][ T5060] ? _copy_from_iter+0x2c1/0x10f0 [ 72.988397][ T5060] netlink_unicast+0x53b/0x810 [ 72.993156][ T5060] ? netlink_attachskb+0x880/0x880 [ 72.998253][ T5060] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 73.004221][ T5060] ? __phys_addr_symbol+0x30/0x70 [ 73.009234][ T5060] ? __check_object_size+0x323/0x730 [ 73.014507][ T5060] netlink_sendmsg+0x8b7/0xd70 [ 73.019263][ T5060] ? netlink_unicast+0x810/0x810 [ 73.024289][ T5060] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 73.029560][ T5060] ? netlink_unicast+0x810/0x810 [ 73.034504][ T5060] __sock_sendmsg+0xd5/0x180 [ 73.039084][ T5060] ____sys_sendmsg+0x6ac/0x940 [ 73.043932][ T5060] ? copy_msghdr_from_user+0x10b/0x160 [ 73.049398][ T5060] ? kernel_sendmsg+0x50/0x50 [ 73.054064][ T5060] ? hlock_class+0x4e/0x130 [ 73.058652][ T5060] ___sys_sendmsg+0x135/0x1d0 [ 73.063334][ T5060] ? do_recvmmsg+0x740/0x740 [ 73.068032][ T5060] ? recalc_sigpending_tsk+0x187/0x1d0 [ 73.073567][ T5060] ? __fget_light+0x1fc/0x260 [ 73.078231][ T5060] __sys_sendmsg+0x117/0x1e0 [ 73.082896][ T5060] ? __sys_sendmsg_sock+0x30/0x30 [ 73.087919][ T5060] ? ptrace_notify+0xf4/0x130 [ 73.092669][ T5060] ? syscall_trace_enter.constprop.0+0xaf/0x1e0 [ 73.098987][ T5060] do_syscall_64+0x40/0x110 [ 73.103488][ T5060] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 73.109378][ T5060] RIP: 0033:0x7f0719e9b779 [ 73.113776][ T5060] Code: 48 83 c4 28 c3 e8 27 18 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 [ 73.133380][ T5060] RSP: 002b:00007ffc30cf03a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 73.141792][ T5060] RAX: ffffffffffffffda RBX: 00007f0719ee402d RCX: 00007f0719e9b779 [ 73.149769][ T5060] RDX: 0000000000000000 RSI: 0000000020005840 RDI: 0000000000000003 [ 73.157739][ T5060] RBP: 00007ffc30cf03c0 R08: 00007ffc30cf0420 R09: 00007ffc30cf0420 [ 73.165693][ T5060] R10: 00007ffc30cf0420 R11: 0000000000000246 R12: 00007f0719f0e5f0 [ 73.173647][ T5060] R13: 00007ffc30cf05a8 R14: 0000000000000001 R15: 0000000000000001 [ 73.181606][ T5060] [ 73.184648][ T5060] Modules linked in: [ 73.189778][ T5060] ---[ end trace 0000000000000000 ]--- [ 73.195395][ T5060] RIP: 0010:htb_tcf_block+0x3a/0xa0 [ 73.200718][ T5060] Code: f8 31 ff 48 89 de e8 f5 4f f1 f8 48 85 db 74 2f e8 5b 54 f1 f8 48 8d 7b 70 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 4b 48 8b 5b 70 e8 37 54 f1 f8 48 89 d8 5b 5d c3 e8 [ 73.220757][ T5060] RSP: 0018:ffffc9000390f408 EFLAGS: 00010206 [ 73.227138][ T5060] RAX: dffffc0000000000 RBX: 000000000000fff2 RCX: ffffffff88962d0b [ 73.235238][ T5060] RDX: 000000000000200c RSI: ffffffff88962d15 RDI: 0000000000010062 [ 73.243309][ T5060] RBP: ffff888074ee6000 R08: 0000000000000007 R09: 0000000000000000 [ 73.251617][ T5060] R10: 000000000000fff2 R11: ffffffff81de56d2 R12: ffff88807f154000 [ 73.259679][ T5060] R13: ffffffff8bed4a60 R14: 0000000000000001 R15: ffffffff8f19a9a0 [ 73.267757][ T5060] FS: 0000555556d17380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 73.276999][ T5060] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 73.283576][ T5060] CR2: 0000562b45e47ba0 CR3: 00000000762cd000 CR4: 00000000003506f0 [ 73.291581][ T5060] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 73.299587][ T5060] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 73.307591][ T5060] Kernel panic - not syncing: Fatal exception [ 73.314008][ T5060] Kernel Offset: disabled [ 73.318538][ T5060] Rebooting in 86400 seconds..