netlink: 44 bytes leftover after parsing attributes in process `syz.2.1402'. ------------[ cut here ]------------ memcpy: detected field-spanning write (size 32) of single field "&new->sel" at net/sched/cls_u32.c:853 (size 16) WARNING: CPU: 0 PID: 7522 at net/sched/cls_u32.c:853 u32_init_knode net/sched/cls_u32.c:853 [inline] WARNING: CPU: 0 PID: 7522 at net/sched/cls_u32.c:853 u32_change+0x1748/0x2018 net/sched/cls_u32.c:919 Modules linked in: CPU: 0 PID: 7522 Comm: syz.2.1402 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/02/2026 pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : u32_init_knode net/sched/cls_u32.c:853 [inline] pc : u32_change+0x1748/0x2018 net/sched/cls_u32.c:919 lr : u32_init_knode net/sched/cls_u32.c:853 [inline] lr : u32_change+0x1748/0x2018 net/sched/cls_u32.c:919 sp : ffff800022046c60 x29: ffff800022046dc0 x28: ffff0000d333cc00 x27: 1fffe0001a66798d x26: ffff800022046f40 x25: ffff0000d20c3800 x24: dfff800000000000 x23: 0000000000000010 x22: ffff700004408d9c x21: dfff800000000000 x20: ffff800022047460 x19: ffff800017d5e000 x18: 1fffe00033e7277e x17: ffff80001537d000 x16: ffff8000082dcf38 x15: 0000000040000002 x14: 0000000000000001 x13: 1fffe00033e74e70 x12: 0000000000000000 x11: ff0080000a96bac0 x10: 0000000000000003 x9 : 212285b18a6f8000 x8 : 212285b18a6f8000 x7 : ffff80000825ab3c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff800011cedc80 x0 : ffff80018a0be000 Call trace: u32_init_knode net/sched/cls_u32.c:853 [inline] u32_change+0x1748/0x2018 net/sched/cls_u32.c:919 tc_new_tfilter+0xdc8/0x1468 net/sched/cls_api.c:2194 rtnetlink_rcv_msg+0x6d4/0xcc4 net/core/rtnetlink.c:6149 netlink_rcv_skb+0x220/0x3ec net/netlink/af_netlink.c:2516 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:6176 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x5fc/0x80c net/netlink/af_netlink.c:1344 netlink_sendmsg+0x6f0/0x9d8 net/netlink/af_netlink.c:1877 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:730 [inline] ____sys_sendmsg+0x588/0x90c net/socket.c:2519 ___sys_sendmsg net/socket.c:2573 [inline] __sys_sendmmsg+0x320/0x7ec net/socket.c:2659 __do_sys_sendmmsg net/socket.c:2688 [inline] __se_sys_sendmmsg net/socket.c:2685 [inline] __arm64_sys_sendmmsg+0xa4/0xc0 net/socket.c:2685 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x290 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x13c/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x5c/0x134 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 622 hardirqs last enabled at (621): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1374 [inline] hardirqs last enabled at (621): [] finish_lock_switch+0xb0/0x1c8 kernel/sched/core.c:5004 hardirqs last disabled at (622): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (576): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (570): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]---