non-paged memory list_del corruption, ffff88805ab0fb80->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:59! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 UID: 0 PID: 7840 Comm: syz.1.671 Not tainted 6.14.0-rc4-syzkaller-00052-gac9c34d1e45a #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__list_del_entry_valid_or_report+0x13e/0x200 lib/list_debug.c:59 Code: 48 c7 c7 e0 4a d3 8b e8 10 9b d1 fc 90 0f 0b 48 89 ef e8 85 23 33 fd 48 89 ea 48 89 de 48 c7 c7 40 4b d3 8b e8 f3 9a d1 fc 90 <0f> 0b 48 89 ef e8 68 23 33 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc900033b7360 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88805ab0fb80 RCX: ffffc9000c902000 RDX: 0000000000000000 RSI: ffffffff8199a85e RDI: 0000000000000005 RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000004 R12: ffff888065017a20 R13: ffff88805ab0fb88 R14: ffff88805ab0fb80 R15: ffff88804c738a00 FS: 0000000000000000(0000) GS:ffff88802b500000(0063) knlGS:00000000f50e6b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f50e5528 CR3: 000000005bcb0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:168 [inline] __team_queue_override_port_del drivers/net/team/team_core.c:825 [inline] __team_queue_override_port_del drivers/net/team/team_core.c:820 [inline] team_queue_override_port_prio_changed drivers/net/team/team_core.c:882 [inline] team_priority_option_set+0x171/0x2f0 drivers/net/team/team_core.c:1533 team_option_set drivers/net/team/team_core.c:375 [inline] team_nl_options_set_doit+0x8b9/0xe70 drivers/net/team/team_core.c:2663 genl_family_rcv_msg_doit+0x202/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x565/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1348 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1892 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:733 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2573 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2627 __sys_sendmsg+0x16e/0x220 net/socket.c:2659 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf745e579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f50e655c EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000080000440 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x13e/0x200 lib/list_debug.c:59 Code: 48 c7 c7 e0 4a d3 8b e8 10 9b d1 fc 90 0f 0b 48 89 ef e8 85 23 33 fd 48 89 ea 48 89 de 48 c7 c7 40 4b d3 8b e8 f3 9a d1 fc 90 <0f> 0b 48 89 ef e8 68 23 33 fd 48 89 ea 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffffc900033b7360 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88805ab0fb80 RCX: ffffc9000c902000 RDX: 0000000000000000 RSI: ffffffff8199a85e RDI: 0000000000000005 RBP: dead000000000122 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000004 R12: ffff888065017a20 R13: ffff88805ab0fb88 R14: ffff88805ab0fb80 R15: ffff88804c738a00 FS: 0000000000000000(0000) GS:ffff88802b400000(0063) knlGS:00000000f50e6b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000055b50973e024 CR3: 000000005bcb0000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi