------------[ cut here ]------------ WARNING: CPU: 0 PID: 8019 at net/netlink/af_netlink.c:2210 netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209 Modules linked in: CPU: 0 UID: 0 PID: 8019 Comm: syz.4.564 Not tainted 6.12.0-rc6-syzkaller-01230-g4861333b4217 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 RIP: 0010:netlink_ack_tlv_fill+0x1a8/0x560 net/netlink/af_netlink.c:2209 Code: 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 0d 48 89 df e8 db b3 2a f8 48 8b 4c 24 10 4c 8b 3b 4d 39 fd 73 2c e8 c9 ed c0 f7 90 <0f> 0b 90 49 bf 00 00 00 00 00 fc ff df e9 9f 00 00 00 e8 b1 ed c0 RSP: 0018:ffffc90019b9f780 EFLAGS: 00010293 RAX: ffffffff89d3ec97 RBX: ffff88802fe7fd58 RCX: ffff88805f833c00 RDX: 0000000000000000 RSI: 00000000ffffffde RDI: 0000000000000000 RBP: ffffc90019b9f850 R08: ffffffff89d3ec3c R09: 0000000000000074 R10: 6f702064656c6961 R11: 6620657475626972 R12: 1ffff92003373ef4 R13: ffff88803341c01c R14: ffffc90019b9f9c0 R15: ffff88803341c020 FS: 00007f80e0b956c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f80e0a67d60 CR3: 0000000033018000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netlink_dump_done+0x513/0x970 net/netlink/af_netlink.c:2250 netlink_dump+0x91f/0xe10 net/netlink/af_netlink.c:2351 netlink_recvmsg+0x6bb/0x11d0 net/netlink/af_netlink.c:1983 sock_recvmsg_nosec net/socket.c:1051 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1073 __sys_recvfrom+0x246/0x3d0 net/socket.c:2267 __do_sys_recvfrom net/socket.c:2285 [inline] __se_sys_recvfrom net/socket.c:2281 [inline] __x64_sys_recvfrom+0xde/0x100 net/socket.c:2281 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f80dfd804e4 Code: 89 4c 24 1c e8 ed 5a 02 00 44 8b 54 24 1c 8b 3c 24 45 31 c9 89 c5 48 8b 54 24 10 48 8b 74 24 08 45 31 c0 b8 2d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 04 24 e8 39 5b 02 00 48 8b 04 RSP: 002b:00007f80e0b93ed0 EFLAGS: 00000246 ORIG_RAX: 000000000000002d RAX: ffffffffffffffda RBX: 00007f80e0b93fc0 RCX: 00007f80dfd804e4 RDX: 0000000000001000 RSI: 00007f80e0b94010 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00007f80e0b93f68 R14: 00007f80e0b94010 R15: 0000000000000000