./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4264289411 <...> Warning: Permanently added '10.128.1.172' (ED25519) to the list of known hosts. [ 86.467332][ T46] cfg80211: failed to load regulatory.db execve("./syz-executor4264289411", ["./syz-executor4264289411"], 0x7ffd03568020 /* 10 vars */) = 0 brk(NULL) = 0x55556bed2000 brk(0x55556bed2d00) = 0x55556bed2d00 arch_prctl(ARCH_SET_FS, 0x55556bed2380) = 0 set_tid_address(0x55556bed2650) = 5101 set_robust_list(0x55556bed2660, 24) = 0 rseq(0x55556bed2ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4264289411", 4096) = 28 getrandom("\xb5\x0a\x81\x06\x7a\x2f\x9d\x53", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556bed2d00 brk(0x55556bef3d00) = 0x55556bef3d00 brk(0x55556bef4000) = 0x55556bef4000 mprotect(0x7f812469a000, 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 socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 sendto(4, [{nlmsg_len=36, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=864, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=5101}, "\x01\x02\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00\x06\x00\x01\x00\x1d\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x30\x00\x00\x00\xe8\x02\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x05\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00"...], 4096, 0, NULL, NULL) = 864 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5101}, {error=0, msg={nlmsg_len=36, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0b\x00\x00\x00\x06\x00\x0a\x00\xa0\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5101}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0c\x00\x01\x00\x02\x00\xaa\xaa\xaa\xaa\xaa\xaa"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5101}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 sendto(3, [{nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=0, ifi_flags=0, ifi_change=0}, [[{nla_len=11, nla_type=IFLA_IFNAME}, "lowpan0"...], [{nla_len=16, nla_type=IFLA_LINKINFO}, [{nla_len=10, nla_type=IFLA_INFO_KIND}, "lowpan"...]], [{nla_len=8, nla_type=IFLA_LINK}, 11]]], 68, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 68 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5101}, {error=0, msg={nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0c\x00\x00\x00\x06\x00\x0a\x00\xa1\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5101}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=if_nametoindex("wpan1"), ifi_flags=IFF_UP, ifi_change=0x1}, [{nla_len=12, nla_type=IFLA_ADDRESS}, 02:01:aa:aa:aa:aa:aa]], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5101}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 close(3) = 0 close(4) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5103 attached , child_tidptr=0x55556bed2650) = 5103 [pid 5103] set_robust_list(0x55556bed2660, 24) = 0 [pid 5103] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5103] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5103] setsid() = 1 [pid 5103] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5103] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5103] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5103] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5103] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5103] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5103] unshare(CLONE_NEWNS) = 0 [pid 5103] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5103] unshare(CLONE_NEWIPC) = 0 [pid 5103] unshare(CLONE_NEWCGROUP) = 0 [pid 5103] unshare(CLONE_NEWUTS) = 0 [pid 5103] unshare(CLONE_SYSVSEM) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "16777216", 8) = 8 [pid 5103] close(3) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "536870912", 9) = 9 [pid 5103] close(3) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "1024", 4) = 4 [pid 5103] close(3) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "8192", 4) = 4 [pid 5103] close(3) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "1024", 4) = 4 [pid 5103] close(3) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "1024", 4) = 4 [pid 5103] close(3) = 0 [pid 5103] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5103] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5103] close(3) = 0 [pid 5103] getpid() = 1 [pid 5103] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5105] set_robust_list(0x55556bed2660, 24 [pid 5103] <... clone resumed>, child_tidptr=0x55556bed2650) = 2 [pid 5105] <... set_robust_list resumed>) = 0 [pid 5105] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5105] setpgid(0, 0) = 0 [pid 5105] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5105] write(3, "1000", 4) = 4 [pid 5105] close(3) = 0 [pid 5105] read(200, "\x33\x33\x00\x00\x00\x16\xaa\xaa\xaa\xaa\xaa\xaa\x86\xdd\x60\x00\x00\x00\x00\x38\x00\x01\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xaa\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x16\x3a\x00\x05\x02\x00\x00\x01\x00\x8f\x00\xc2\x46\x00\x00\x00\x02\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xff\xaa\xaa\xaa\x04\x00\x00\x00\xff\x02\x00\x00\x00\x00"..., 1000) = 110 [pid 5105] read(200, 0x7ffef0f1e7d0, 1000) = -1 EAGAIN (Resource temporarily unavailable) [pid 5105] write(1, "executing program\n", 18executing program ) = 18 [pid 5105] bpf(BPF_PROG_LOAD, {prog_type=BPF_PROG_TYPE_XDP, insn_cnt=3, insns=0x20000140, license="syzkaller", log_level=0, log_size=0, log_buf=NULL, kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0, prog_name="", prog_ifindex=0, expected_attach_type=BPF_XDP, prog_btf_fd=-1, func_info_rec_size=8, func_info=NULL, func_info_cnt=0, line_info_rec_size=16, line_info=NULL, line_info_cnt=0, attach_btf_id=0, attach_prog_fd=0, fd_array=NULL, ...}, 144) = 3 [pid 5105] socket(AF_PACKET, SOCK_DGRAM, htons(ETH_P_ALL)) = 4 [pid 5105] ioctl(4, SIOCGIFINDEX, {ifr_name="syz_tun", ifr_ifindex=11}) = 0 [pid 5105] bpf(BPF_LINK_CREATE, {link_create={prog_fd=3, target_fd=11, attach_type=BPF_XDP, flags=0}}, 64) = 5 [ 87.470665][ C0] ================================================================== [ 87.478744][ C0] BUG: KASAN: stack-out-of-bounds in xdp_do_check_flushed+0x231/0x240 [ 87.486913][ C0] Read of size 4 at addr ffffc90003cbf7f8 by task syz-executor426/5105 [ 87.495135][ C0] [ 87.497444][ C0] CPU: 0 PID: 5105 Comm: syz-executor426 Not tainted 6.10.0-syzkaller-08280-g68b59730459e #0 [ 87.507862][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 87.517903][ C0] Call Trace: [ 87.521609][ C0] [ 87.524441][ C0] dump_stack_lvl+0x241/0x360 [ 87.529216][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 87.534416][ C0] ? __pfx__printk+0x10/0x10 [ 87.539004][ C0] ? _printk+0xd5/0x120 [ 87.543158][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.548785][ C0] print_report+0x169/0x550 [ 87.553281][ C0] ? __pfx_validate_chain+0x10/0x10 [ 87.558563][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.564182][ C0] ? __virt_addr_valid+0x45f/0x530 [ 87.569320][ C0] ? xdp_do_check_flushed+0x231/0x240 [ 87.574686][ C0] kasan_report+0x143/0x180 [ 87.579180][ C0] ? xdp_do_check_flushed+0x231/0x240 [ 87.584580][ C0] xdp_do_check_flushed+0x231/0x240 [ 87.589774][ C0] __napi_poll+0xe4/0x490 [ 87.594205][ C0] net_rx_action+0x89b/0x1240 [ 87.599080][ C0] ? mark_lock+0x9a/0x350 [ 87.603420][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 87.608712][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.614423][ C0] ? sched_clock+0x4a/0x70 [ 87.618844][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 87.625191][ C0] handle_softirqs+0x2c6/0x970 [ 87.629950][ C0] ? do_softirq+0x11b/0x1e0 [ 87.634443][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 87.639740][ C0] do_softirq+0x11b/0x1e0 [ 87.644148][ C0] [ 87.647065][ C0] [ 87.649999][ C0] ? __pfx_do_softirq+0x10/0x10 [ 87.654842][ C0] ? __pfx_lockdep_softirqs_on+0x10/0x10 [ 87.661015][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.666656][ C0] ? rcu_is_watching+0x15/0xb0 [ 87.671430][ C0] __local_bh_enable_ip+0x1bb/0x200 [ 87.676631][ C0] ? tun_get_user+0x270a/0x4720 [ 87.681494][ C0] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 87.687208][ C0] ? tun_get_user+0x270a/0x4720 [ 87.692068][ C0] tun_get_user+0x2884/0x4720 [ 87.696762][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.702385][ C0] ? __lock_acquire+0x1346/0x1fd0 [ 87.707406][ C0] ? __pfx_tun_get_user+0x10/0x10 [ 87.712428][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.718139][ C0] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 87.723596][ C0] ? tun_get+0x1e/0x2f0 [ 87.727772][ C0] ? __pfx_lock_release+0x10/0x10 [ 87.732807][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.738446][ C0] ? tun_get+0x1e/0x2f0 [ 87.742697][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.748336][ C0] ? tun_get+0x27d/0x2f0 [ 87.752591][ C0] tun_chr_write_iter+0x113/0x1f0 [ 87.758173][ C0] vfs_write+0xa74/0xc90 [ 87.762446][ C0] ? __pfx_tun_chr_write_iter+0x10/0x10 [ 87.768034][ C0] ? __pfx_vfs_write+0x10/0x10 [ 87.772810][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.778462][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 87.783926][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.789559][ C0] ksys_write+0x1a0/0x2c0 [ 87.793912][ C0] ? __pfx_ksys_write+0x10/0x10 [ 87.798779][ C0] ? do_syscall_64+0x100/0x230 [ 87.803567][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 87.809316][ C0] do_syscall_64+0xf3/0x230 [ 87.813850][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.819784][ C0] RIP: 0033:0x7f8124627e00 [ 87.824189][ C0] Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 72 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ 87.843883][ C0] RSP: 002b:00007ffef0f1ebc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 87.852294][ C0] RAX: ffffffffffffffda RBX: 00007ffef0f1ec80 RCX: 00007f8124627e00 [ 87.860256][ C0] RDX: 0000000000000e80 RSI: 0000000020000100 RDI: 00000000000000c8 [ 87.868225][ C0] RBP: 00007ffef0f1ec30 R08: 000055556bed3378 R09: 000055556bed3378 [ 87.876204][ C0] R10: 000055556bed3378 R11: 0000000000000202 R12: 0000000000000000 [ 87.884365][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 87.892343][ C0] [ 87.895348][ C0] [ 87.897655][ C0] The buggy address belongs to stack of task syz-executor426/5105 [ 87.905435][ C0] and is located at offset 88 in frame: [ 87.911066][ C0] do_softirq+0x0/0x1e0 [ 87.915236][ C0] [ 87.917551][ C0] This frame has 2 objects: [ 87.922032][ C0] [32, 40) 'flags.i.i.i105' [ 87.922045][ C0] [64, 72) 'flags.i.i.i' [ 87.926615][ C0] [ 87.933222][ C0] The buggy address belongs to the virtual mapping at [ 87.933222][ C0] [ffffc90003cb8000, ffffc90003cc1000) created by: [ 87.933222][ C0] copy_process+0x5d1/0x3dc0 [ 87.950851][ C0] [ 87.953163][ C0] The buggy address belongs to the physical page: [ 87.959573][ C0] page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x785de [ 87.968415][ C0] flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) [ 87.975696][ C0] raw: 00fff00000000000 0000000000000000 dead000000000122 0000000000000000 [ 87.984268][ C0] raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000 [ 87.992926][ C0] page dumped because: kasan: bad access detected [ 87.999338][ C0] page_owner tracks the page as allocated [ 88.005034][ C0] page last allocated via order 0, migratetype Unmovable, gfp_mask 0x2dc2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), pid 5103, tgid 5103 (syz-executor426), ts 87394067136, free_ts 73125798156 [ 88.024488][ C0] post_alloc_hook+0x1f3/0x230 [ 88.029253][ C0] get_page_from_freelist+0x2e4c/0x2f10 [ 88.034808][ C0] __alloc_pages_noprof+0x256/0x6c0 [ 88.040032][ C0] alloc_pages_mpol_noprof+0x3e8/0x680 [ 88.045497][ C0] __vmalloc_node_range_noprof+0x971/0x1460 [ 88.051425][ C0] dup_task_struct+0x444/0x8c0 [ 88.056233][ C0] copy_process+0x5d1/0x3dc0 [ 88.060822][ C0] kernel_clone+0x226/0x8f0 [ 88.065325][ C0] __x64_sys_clone+0x258/0x2a0 [ 88.070525][ C0] do_syscall_64+0xf3/0x230 [ 88.075029][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.080929][ C0] page last free pid 5084 tgid 5084 stack trace: [ 88.087329][ C0] free_unref_page+0xd22/0xea0 [ 88.092084][ C0] __folio_put+0x3b9/0x620 [ 88.096544][ C0] pipe_read+0x6f4/0x13e0 [ 88.100868][ C0] vfs_read+0x9bf/0xbc0 [ 88.105042][ C0] ksys_read+0x1a0/0x2c0 [ 88.109310][ C0] do_syscall_64+0xf3/0x230 [ 88.113814][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.119708][ C0] [ 88.122010][ C0] Memory state around the buggy address: [ 88.127621][ C0] ffffc90003cbf680: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 88.135666][ C0] ffffc90003cbf700: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 88.143706][ C0] >ffffc90003cbf780: 00 00 00 00 f1 f1 f1 f1 00 f2 f2 f2 00 f3 f3 f3 [ 88.151743][ C0] ^ [ 88.159787][ C0] ffffc90003cbf800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 88.167917][ C0] ffffc90003cbf880: f1 f1 f1 f1 00 f3 f3 f3 00 00 00 00 00 00 00 00 [ 88.175957][ C0] ================================================================== [ 88.184110][ C0] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 88.191657][ C0] CPU: 0 PID: 5105 Comm: syz-executor426 Not tainted 6.10.0-syzkaller-08280-g68b59730459e #0 [ 88.201817][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 [ 88.212315][ C0] Call Trace: [ 88.215581][ C0] [ 88.218415][ C0] dump_stack_lvl+0x241/0x360 [ 88.223181][ C0] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.228375][ C0] ? __pfx__printk+0x10/0x10 [ 88.232966][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 88.238946][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.244569][ C0] ? vscnprintf+0x5d/0x90 [ 88.248914][ C0] panic+0x349/0x860 [ 88.252826][ C0] ? check_panic_on_warn+0x21/0xb0 [ 88.257952][ C0] ? __pfx_panic+0x10/0x10 [ 88.262380][ C0] ? _raw_spin_unlock_irqrestore+0xd8/0x140 [ 88.268269][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.273918][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 88.280187][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 88.286535][ C0] check_panic_on_warn+0x86/0xb0 [ 88.291510][ C0] ? xdp_do_check_flushed+0x231/0x240 [ 88.296978][ C0] end_report+0x77/0x160 [ 88.301225][ C0] kasan_report+0x154/0x180 [ 88.305915][ C0] ? xdp_do_check_flushed+0x231/0x240 [ 88.311299][ C0] xdp_do_check_flushed+0x231/0x240 [ 88.316642][ C0] __napi_poll+0xe4/0x490 [ 88.321001][ C0] net_rx_action+0x89b/0x1240 [ 88.325685][ C0] ? mark_lock+0x9a/0x350 [ 88.330027][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 88.335141][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.340773][ C0] ? sched_clock+0x4a/0x70 [ 88.345206][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 88.351540][ C0] handle_softirqs+0x2c6/0x970 [ 88.356307][ C0] ? do_softirq+0x11b/0x1e0 [ 88.360816][ C0] ? __pfx_handle_softirqs+0x10/0x10 [ 88.366102][ C0] do_softirq+0x11b/0x1e0 [ 88.370422][ C0] [ 88.373343][ C0] [ 88.376277][ C0] ? __pfx_do_softirq+0x10/0x10 [ 88.381233][ C0] ? __pfx_lockdep_softirqs_on+0x10/0x10 [ 88.386862][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.392485][ C0] ? rcu_is_watching+0x15/0xb0 [ 88.397258][ C0] __local_bh_enable_ip+0x1bb/0x200 [ 88.402445][ C0] ? tun_get_user+0x270a/0x4720 [ 88.407314][ C0] ? __pfx___local_bh_enable_ip+0x10/0x10 [ 88.413547][ C0] ? tun_get_user+0x270a/0x4720 [ 88.418399][ C0] tun_get_user+0x2884/0x4720 [ 88.423081][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.428703][ C0] ? __lock_acquire+0x1346/0x1fd0 [ 88.433724][ C0] ? __pfx_tun_get_user+0x10/0x10 [ 88.438753][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.444389][ C0] ? __pfx_ref_tracker_alloc+0x10/0x10 [ 88.449933][ C0] ? tun_get+0x1e/0x2f0 [ 88.454084][ C0] ? __pfx_lock_release+0x10/0x10 [ 88.459109][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.464735][ C0] ? tun_get+0x1e/0x2f0 [ 88.468923][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.474558][ C0] ? tun_get+0x27d/0x2f0 [ 88.478887][ C0] tun_chr_write_iter+0x113/0x1f0 [ 88.483909][ C0] vfs_write+0xa74/0xc90 [ 88.488169][ C0] ? __pfx_tun_chr_write_iter+0x10/0x10 [ 88.493707][ C0] ? __pfx_vfs_write+0x10/0x10 [ 88.498475][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.504109][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 88.509312][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.514937][ C0] ksys_write+0x1a0/0x2c0 [ 88.519271][ C0] ? __pfx_ksys_write+0x10/0x10 [ 88.524128][ C0] ? do_syscall_64+0x100/0x230 [ 88.529068][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 88.534786][ C0] do_syscall_64+0xf3/0x230 [ 88.539327][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.545232][ C0] RIP: 0033:0x7f8124627e00 [ 88.549633][ C0] Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d a1 72 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ 88.569293][ C0] RSP: 002b:00007ffef0f1ebc8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 88.577696][ C0] RAX: ffffffffffffffda RBX: 00007ffef0f1ec80 RCX: 00007f8124627e00 [ 88.585658][ C0] RDX: 0000000000000e80 RSI: 0000000020000100 RDI: 00000000000000c8 [ 88.593617][ C0] RBP: 00007ffef0f1ec30 R08: 000055556bed3378 R09: 000055556bed3378 [ 88.601576][ C0] R10: 000055556bed3378 R11: 0000000000000202 R12: 0000000000000000 [ 88.609624][ C0] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 88.617596][ C0] [ 88.620977][ C0] Kernel Offset: disabled [ 88.625388][ C0] Rebooting in 86400 seconds..