./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1265884825 <...> Warning: Permanently added '10.128.0.234' (ED25519) to the list of known hosts. execve("./syz-executor1265884825", ["./syz-executor1265884825"], 0x7fff6dc12540 /* 10 vars */) = 0 brk(NULL) = 0x555555558000 brk(0x555555558d00) = 0x555555558d00 arch_prctl(ARCH_SET_FS, 0x555555558380) = 0 set_tid_address(0x555555558650) = 5038 set_robust_list(0x555555558660, 24) = 0 rseq(0x555555558ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1265884825", 4096) = 28 getrandom("\x15\x80\x74\x07\xb9\x91\xb0\x9d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555558d00 brk(0x555555579d00) = 0x555555579d00 brk(0x55555557a000) = 0x55555557a000 mprotect(0x7f654cecd000, 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 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555558650) = 5039 ./strace-static-x86_64: Process 5039 attached [pid 5039] set_robust_list(0x555555558660, 24) = 0 [pid 5039] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5039] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5039] setsid() = 1 [pid 5039] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5039] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5039] unshare(CLONE_NEWNS) = 0 [pid 5039] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5039] unshare(CLONE_NEWIPC) = 0 [pid 5039] unshare(CLONE_NEWCGROUP) = 0 [pid 5039] unshare(CLONE_NEWUTS) = 0 [pid 5039] unshare(CLONE_SYSVSEM) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "16777216", 8) = 8 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "536870912", 9) = 9 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "8192", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024", 4) = 4 [pid 5039] close(3) = 0 [pid 5039] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5039] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5039] close(3) = 0 [pid 5039] getpid() = 1 [pid 5039] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 65.560936][ T5050] dump_stack_lvl+0x125/0x1b0 [ 65.565606][ T5050] should_fail_ex+0x496/0x5b0 [ 65.570273][ T5050] should_failslab+0x9/0x20 [ 65.574759][ T5050] __kmem_cache_alloc_node+0x2fd/0x350 [ 65.580221][ T5050] ? kstrdup_const+0x5f/0x70 [ 65.584824][ T5050] ? rcu_is_watching+0x12/0xb0 [ 65.589571][ T5050] ? lock_acquire+0x464/0x510 [ 65.594232][ T5050] ? kstrdup_const+0x5f/0x70 [ 65.598809][ T5050] __kmalloc_node_track_caller+0x50/0x100 [ 65.604520][ T5050] kstrdup+0x3c/0x70 [ 65.608406][ T5050] kstrdup_const+0x5f/0x70 [ 65.612808][ T5050] kvasprintf_const+0x10b/0x190 [ 65.617646][ T5050] kobject_set_name_vargs+0x5a/0x130 [ 65.622925][ T5050] dev_set_name+0xc8/0x100 [ 65.627340][ T5050] ? device_initialize+0x510/0x510 [ 65.632455][ T5050] ? __init_waitqueue_head+0xca/0x150 [ 65.637915][ T5050] netdev_register_kobject+0xc1/0x3f0 [ 65.643300][ T5050] register_netdevice+0xbcb/0x1490 [ 65.648422][ T5050] ? kasan_set_track+0x25/0x30 [ 65.653189][ T5050] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 65.659094][ T5050] ? macvlan_hash_add_source+0x4d/0x3a0 [ 65.664643][ T5050] macvlan_common_newlink+0x1102/0x1a40 [ 65.670190][ T5050] ? macvlan_compute_filter+0x3b0/0x3b0 [ 65.675741][ T5050] ? rtnl_create_link+0xa6d/0xfd0 [ 65.680765][ T5050] ? macvlan_common_newlink+0x1a40/0x1a40 [ 65.686482][ T5050] __rtnl_newlink+0x1177/0x1940 [ 65.691340][ T5050] ? rtnl_link_unregister+0x260/0x260 [ 65.696725][ T5050] rtnl_newlink+0x67/0xa0 [ 65.701052][ T5050] ? __rtnl_newlink+0x1940/0x1940 [ 65.706079][ T5050] rtnetlink_rcv_msg+0x439/0xd30 [ 65.711016][ T5050] ? rtnl_getlink+0xb40/0xb40 [ 65.715703][ T5050] netlink_rcv_skb+0x16b/0x440 [ 65.720470][ T5050] ? rtnl_getlink+0xb40/0xb40 [ 65.725146][ T5050] ? netlink_ack+0x1370/0x1370 [ 65.729926][ T5050] ? netlink_deliver_tap+0x1b1/0xd10 [ 65.735217][ T5050] netlink_unicast+0x536/0x810 [ 65.739986][ T5050] ? netlink_attachskb+0x870/0x870 [ 65.745108][ T5050] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 65.751012][ T5050] ? __phys_addr_symbol+0x30/0x70 [ 65.756032][ T5050] ? __check_object_size+0x323/0x730 [ 65.761318][ T5050] netlink_sendmsg+0x93c/0xe40 [ 65.766089][ T5050] ? netlink_unicast+0x810/0x810 [ 65.771032][ T5050] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 65.776320][ T5050] ? netlink_unicast+0x810/0x810 [ 65.781259][ T5050] sock_sendmsg+0xd9/0x180 [ 65.785690][ T5050] ____sys_sendmsg+0x6ac/0x940 [ 65.790454][ T5050] ? copy_msghdr_from_user+0x10b/0x160 [ 65.795916][ T5050] ? kernel_sendmsg+0x50/0x50 [ 65.800597][ T5050] ? finish_task_switch.isra.0+0x216/0xc90 [ 65.806402][ T5050] ? __switch_to+0x73d/0x1340 [ 65.811080][ T5050] ___sys_sendmsg+0x135/0x1d0 [ 65.815760][ T5050] ? do_recvmmsg+0x740/0x740 [ 65.820357][ T5050] ? lock_sync+0x190/0x190 [ 65.824775][ T5050] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 65.829974][ T5050] ? __fget_light+0x1fc/0x260 [ 65.834651][ T5050] __sys_sendmsg+0x117/0x1e0 [ 65.839258][ T5050] ? __sys_sendmsg_sock+0x30/0x30 [ 65.844297][ T5050] ? ptrace_notify+0xf4/0x130 [ 65.848989][ T5050] ? _raw_spin_unlock_irq+0x2e/0x50 [ 65.854192][ T5050] ? ptrace_notify+0xf4/0x130 [ 65.858868][ T5050] do_syscall_64+0x38/0xb0 [ 65.863289][ T5050] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 65.869187][ T5050] RIP: 0033:0x7f654ce54ce9 [ 65.873592][ T5050] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 [ 65.893191][ T5050] RSP: 002b:00007ffe2e4cbc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 65.901603][ T5050] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f654ce54ce9 [ 65.909577][ T5050] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 65.917539][ T5050] RBP: 0000000000000002 R08: 00007ffe2e4cba26 R09: 0000000100000000 [ 65.925507][ T5050] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 [ 65.933470][ T5050] R13: 00000000000f4240 R14: 00007ffe2e4cbce0 R15: 0000000000000003 [ 65.941441][ T5050] [ 65.949159][ T5050] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 65.960902][ T5050] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 65.969310][ T5050] CPU: 1 PID: 5050 Comm: syz-executor126 Not tainted 6.5.0-syzkaller-11329-g708283abf896 #0 [ 65.979358][ T5050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 65.989497][ T5050] RIP: 0010:strchr+0x1b/0xb0 [ 65.994087][ T5050] Code: 01 ae f7 48 8b 74 24 08 48 8b 14 24 eb 89 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea 03 53 48 83 ec 10 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 07 89 [ 66.013768][ T5050] RSP: 0018:ffffc90003d9f058 EFLAGS: 00010282 [ 66.019829][ T5050] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 66.027801][ T5050] RDX: 0000000000000000 RSI: 0000000000000025 RDI: 0000000000000000 [ 66.035771][ T5050] RBP: ffffc90003d9f0e8 R08: 0000000000000001 R09: 0000000000000000 [ 66.043742][ T5050] R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90003d9f0e8 [ 66.051700][ T5050] R13: 0000000000000cc0 R14: ffff888145a49c00 R15: 0000000000000001 [ 66.059662][ T5050] FS: 0000555555558380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 66.068584][ T5050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.075175][ T5050] CR2: 00007f654ce52ce3 CR3: 000000002921c000 CR4: 00000000003506e0 [ 66.083155][ T5050] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.091124][ T5050] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.099112][ T5050] Call Trace: [ 66.102387][ T5050] [ 66.105314][ T5050] ? show_regs+0x8f/0xa0 [ 66.109568][ T5050] ? die_addr+0x4f/0xd0 [ 66.113804][ T5050] ? exc_general_protection+0x154/0x230 [ 66.119352][ T5050] ? asm_exc_general_protection+0x26/0x30 [ 66.125080][ T5050] ? strchr+0x1b/0xb0 [ 66.129077][ T5050] ? __mutex_unlock_slowpath+0x165/0x640 [ 66.134700][ T5050] kvasprintf_const+0x25/0x190 [ 66.139462][ T5050] kobject_set_name_vargs+0x5a/0x130 [ 66.144742][ T5050] kobject_add+0x12a/0x240 [ 66.149167][ T5050] ? kset_create_and_add+0x190/0x190 [ 66.154461][ T5050] ? do_raw_spin_unlock+0x173/0x230 [ 66.159653][ T5050] ? kobject_put+0xbe/0x440 [ 66.164160][ T5050] device_add+0x290/0x1ac0 [ 66.168691][ T5050] ? device_initialize+0x510/0x510 [ 66.173799][ T5050] ? __fw_devlink_link_to_consumers.isra.0+0x270/0x270 [ 66.180668][ T5050] ? __init_waitqueue_head+0xca/0x150 [ 66.186059][ T5050] netdev_register_kobject+0x183/0x3f0 [ 66.191517][ T5050] register_netdevice+0xbcb/0x1490 [ 66.196630][ T5050] ? kasan_set_track+0x25/0x30 [ 66.201412][ T5050] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 66.207302][ T5050] ? macvlan_hash_add_source+0x4d/0x3a0 [ 66.212847][ T5050] macvlan_common_newlink+0x1102/0x1a40 [ 66.218404][ T5050] ? macvlan_compute_filter+0x3b0/0x3b0 [ 66.223951][ T5050] ? rtnl_create_link+0xa6d/0xfd0 [ 66.229015][ T5050] ? macvlan_common_newlink+0x1a40/0x1a40 [ 66.234734][ T5050] __rtnl_newlink+0x1177/0x1940 [ 66.239580][ T5050] ? rtnl_link_unregister+0x260/0x260 [ 66.244958][ T5050] rtnl_newlink+0x67/0xa0 [ 66.249284][ T5050] ? __rtnl_newlink+0x1940/0x1940 [ 66.254307][ T5050] rtnetlink_rcv_msg+0x439/0xd30 [ 66.259239][ T5050] ? rtnl_getlink+0xb40/0xb40 [ 66.263921][ T5050] netlink_rcv_skb+0x16b/0x440 [ 66.268705][ T5050] ? rtnl_getlink+0xb40/0xb40 [ 66.273397][ T5050] ? netlink_ack+0x1370/0x1370 [ 66.278158][ T5050] ? netlink_deliver_tap+0x1b1/0xd10 [ 66.283439][ T5050] netlink_unicast+0x536/0x810 [ 66.288200][ T5050] ? netlink_attachskb+0x870/0x870 [ 66.293327][ T5050] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 66.299220][ T5050] ? __phys_addr_symbol+0x30/0x70 [ 66.304233][ T5050] ? __check_object_size+0x323/0x730 [ 66.309509][ T5050] netlink_sendmsg+0x93c/0xe40 [ 66.314268][ T5050] ? netlink_unicast+0x810/0x810 [ 66.319198][ T5050] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 66.324475][ T5050] ? netlink_unicast+0x810/0x810 [ 66.329425][ T5050] sock_sendmsg+0xd9/0x180 [ 66.333852][ T5050] ____sys_sendmsg+0x6ac/0x940 [ 66.338604][ T5050] ? copy_msghdr_from_user+0x10b/0x160 [ 66.344053][ T5050] ? kernel_sendmsg+0x50/0x50 [ 66.348720][ T5050] ? finish_task_switch.isra.0+0x216/0xc90 [ 66.354514][ T5050] ? __switch_to+0x73d/0x1340 [ 66.359191][ T5050] ___sys_sendmsg+0x135/0x1d0 [ 66.363885][ T5050] ? do_recvmmsg+0x740/0x740 [ 66.368644][ T5050] ? lock_sync+0x190/0x190 [ 66.373056][ T5050] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 66.378246][ T5050] ? __fget_light+0x1fc/0x260 [ 66.382908][ T5050] __sys_sendmsg+0x117/0x1e0 [ 66.387492][ T5050] ? __sys_sendmsg_sock+0x30/0x30 [ 66.392506][ T5050] ? ptrace_notify+0xf4/0x130 [ 66.397174][ T5050] ? _raw_spin_unlock_irq+0x2e/0x50 [ 66.402363][ T5050] ? ptrace_notify+0xf4/0x130 [ 66.407043][ T5050] do_syscall_64+0x38/0xb0 [ 66.411450][ T5050] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 66.417337][ T5050] RIP: 0033:0x7f654ce54ce9 [ 66.421744][ T5050] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 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 [ 66.441343][ T5050] RSP: 002b:00007ffe2e4cbc88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 66.449740][ T5050] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f654ce54ce9 [ 66.457694][ T5050] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 66.465653][ T5050] RBP: 0000000000000002 R08: 00007ffe2e4cba26 R09: 0000000100000000 [ 66.473615][ T5050] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 [ 66.481589][ T5050] R13: 00000000000f4240 R14: 00007ffe2e4cbce0 R15: 0000000000000003 [ 66.489552][ T5050] [ 66.492555][ T5050] Modules linked in: [ 66.497687][ T5050] ---[ end trace 0000000000000000 ]--- [ 66.504996][ T5050] RIP: 0010:strchr+0x1b/0xb0 [ 66.509620][ T5050] Code: 01 ae f7 48 8b 74 24 08 48 8b 14 24 eb 89 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea 03 53 48 83 ec 10 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 51 0f b6 07 89 [ 66.529429][ T5050] RSP: 0018:ffffc90003d9f058 EFLAGS: 00010282 [ 66.535549][ T5050] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 66.543660][ T5050] RDX: 0000000000000000 RSI: 0000000000000025 RDI: 0000000000000000 [ 66.551782][ T5050] RBP: ffffc90003d9f0e8 R08: 0000000000000001 R09: 0000000000000000 [ 66.559771][ T5050] R10: 0000000000000001 R11: 0000000000000000 R12: ffffc90003d9f0e8 [ 66.567772][ T5050] R13: 0000000000000cc0 R14: ffff888145a49c00 R15: 0000000000000001 [ 66.575794][ T5050] FS: 0000555555558380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 66.584741][ T5050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.591351][ T5050] CR2: 00007f654ce52ce3 CR3: 000000002921c000 CR4: 00000000003506e0 [ 66.599320][ T5050] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.607347][ T5050] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.615360][ T5050] Kernel panic - not syncing: Fatal exception [ 66.621625][ T5050] Kernel Offset: disabled [ 66.625940][ T5050] Rebooting in 86400 seconds..