------------[ cut here ]------------ kernel BUG at lib/list_debug.c:25! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5895 Comm: syz-executor.2 Not tainted 5.14.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid+0xa0/0xc0 lib/list_debug.c:23 Code: 20 9a 93 8a 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 de 89 5b fd 0f 0b 48 c7 c7 e0 98 93 8a 4c 89 e6 4c 89 f1 31 c0 e8 c8 89 5b fd <0f> 0b 48 c7 c7 a0 99 93 8a 4c 89 f6 4c 89 e1 31 c0 e8 b2 89 5b fd RSP: 0018:ffffc9000a3cf240 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff888020be80c8 RCX: ff665f0535ec3200 RDX: ffffc9000ddfc000 RSI: 000000000000de21 RDI: 000000000000de22 RBP: dffffc0000000000 R08: ffffffff816650a2 R09: ffffed10173a9798 R10: ffffed10173a9798 R11: 0000000000000000 R12: ffffffff8ce71680 R13: dffffc0000000000 R14: ffff888020be80c0 R15: ffff888073fc72c0 FS: 00007f07da9fe700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002e7a708 CR3: 00000000873b1000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:67 [inline] list_add include/linux/list.h:86 [inline] fw_load_sysfs_fallback+0x110/0x720 drivers/base/firmware_loader/fallback.c:516 fw_load_from_user_helper+0x242/0x320 drivers/base/firmware_loader/fallback.c:581 _request_firmware+0x3b4/0x560 drivers/base/firmware_loader/main.c:833 request_firmware+0x35/0x50 drivers/base/firmware_loader/main.c:877 reg_reload_regdb+0x81/0x200 net/wireless/reg.c:1095 genl_family_rcv_msg_doit net/netlink/genetlink.c:739 [inline] genl_family_rcv_msg net/netlink/genetlink.c:783 [inline] genl_rcv_msg+0xfb4/0x13c0 net/netlink/genetlink.c:800 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2504 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x7de/0x9b0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x9e7/0xe00 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:703 [inline] sock_sendmsg net/socket.c:723 [inline] ____sys_sendmsg+0x5a2/0x900 net/socket.c:2392 ___sys_sendmsg net/socket.c:2446 [inline] __sys_sendmsg+0x319/0x400 net/socket.c:2475 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f07da9fe188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007fff5eb352ef R14: 00007f07da9fe300 R15: 0000000000022000 Modules linked in: ---[ end trace d286f89237063cf2 ]--- RIP: 0010:__list_add_valid+0xa0/0xc0 lib/list_debug.c:23 Code: 20 9a 93 8a 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 de 89 5b fd 0f 0b 48 c7 c7 e0 98 93 8a 4c 89 e6 4c 89 f1 31 c0 e8 c8 89 5b fd <0f> 0b 48 c7 c7 a0 99 93 8a 4c 89 f6 4c 89 e1 31 c0 e8 b2 89 5b fd RSP: 0018:ffffc9000a3cf240 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff888020be80c8 RCX: ff665f0535ec3200 RDX: ffffc9000ddfc000 RSI: 000000000000de21 RDI: 000000000000de22 RBP: dffffc0000000000 R08: ffffffff816650a2 R09: ffffed10173a9798 R10: ffffed10173a9798 R11: 0000000000000000 R12: ffffffff8ce71680 R13: dffffc0000000000 R14: ffff888020be80c0 R15: ffff888073fc72c0 FS: 00007f07da9fe700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000034a5708 CR3: 00000000873b1000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400