netlink: 120 bytes leftover after parsing attributes in process `syz-executor.4'. ------------[ cut here ]------------ memcpy: detected field-spanning write (size 256) of single field "&n->sel" at net/sched/cls_u32.c:1043 (size 16) WARNING: CPU: 1 PID: 4974 at net/sched/cls_u32.c:1043 u32_change+0x2962/0x3250 net/sched/cls_u32.c:1043 Modules linked in: CPU: 1 PID: 4974 Comm: syz-executor.4 Not tainted 6.0.0-rc6-next-20220921-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 RIP: 0010:u32_change+0x2962/0x3250 net/sched/cls_u32.c:1043 Code: f4 df 14 fa 48 8b b5 78 fe ff ff b9 10 00 00 00 48 c7 c2 20 f7 f5 8a 48 c7 c7 a0 f6 f5 8a c6 05 55 b3 63 06 01 e8 db d6 df 01 <0f> 0b e9 73 f3 ff ff e8 c2 df 14 fa 48 c7 c7 00 fc f5 8a e8 66 ed RSP: 0018:ffffc90003c1f1e0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffc90003c1f4f8 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff81620348 RDI: fffff52000783e2e RBP: ffffc90003c1f380 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 203a7970636d656d R12: ffff8880743834e0 R13: ffffc90003c1f498 R14: ffff88802a708038 R15: ffff888074383400 FS: 00007faba43de700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f783a36d1b8 CR3: 000000007dda0000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tc_new_tfilter+0x938/0x2190 net/sched/cls_api.c:2146 rtnetlink_rcv_msg+0x955/0xca0 net/core/rtnetlink.c:6082 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x8c0 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmmsg+0x18b/0x460 net/socket.c:2622 __do_sys_sendmmsg net/socket.c:2651 [inline] __se_sys_sendmmsg net/socket.c:2648 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2648 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7faba4c8a649 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 RSP: 002b:00007faba43de168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007faba4d9c050 RCX: 00007faba4c8a649 RDX: 040000000000009f RSI: 00000000200002c0 RDI: 0000000000000005 RBP: 00007faba4ce5560 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeeee0304f R14: 00007faba43de300 R15: 0000000000022000