platform regulatory.0: Falling back to sysfs fallback for: regulatory.db list_add corruption. next->prev should be prev (ffffffff854d2350), but was 80000001a04e0007. (next=ffff8881e6a0cb80). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:25! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5143 Comm: syz-executor.3 Not tainted 5.4.85-syzkaller-00187-g4aa7a7c97391 #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: fb e2 1f 85 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 42 8f 24 ff 0f 0b 48 c7 c7 46 e2 1f 85 4c 89 e6 4c 89 f1 31 c0 e8 2c 8f 24 ff <0f> 0b 48 c7 c7 a9 e2 1f 85 4c 89 f6 4c 89 e1 31 c0 e8 16 8f 24 ff RSP: 0018:ffff8881ed17f2c8 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff8881e6a0cb88 RCX: ff1c07be38543f00 RDX: ffffc90004726000 RSI: 0000000000031064 RDI: 0000000000031065 RBP: ffff8881e6a0cb80 R08: ffffffff814e3421 R09: ffffed103ee25e08 R10: ffffed103ee25e08 R11: 0000000000000000 R12: ffffffff854d2350 R13: dffffc0000000000 R14: ffff8881e6a0cb80 R15: ffff8881e52ab180 FS: 00007f153424b700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555aa1ec85d8 CR3: 00000001eca85000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:60 [inline] list_add include/linux/list.h:79 [inline] fw_load_sysfs_fallback drivers/base/firmware_loader/fallback.c:515 [inline] fw_load_from_user_helper drivers/base/firmware_loader/fallback.c:580 [inline] firmware_fallback_sysfs+0x48d/0xb30 drivers/base/firmware_loader/fallback.c:654 _request_firmware+0xe7b/0x1350 drivers/base/firmware_loader/main.c:788 request_firmware+0x33/0x50 drivers/base/firmware_loader/main.c:831 reg_reload_regdb+0xa0/0x220 net/wireless/reg.c:1083 genl_family_rcv_msg net/netlink/genetlink.c:629 [inline] genl_rcv_msg+0xee9/0x13c0 net/netlink/genetlink.c:654 netlink_rcv_skb+0x200/0x480 net/netlink/af_netlink.c:2478 genl_rcv+0x24/0x40 net/netlink/genetlink.c:665 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x868/0xa00 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x9b9/0xd50 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:638 [inline] sock_sendmsg net/socket.c:658 [inline] ____sys_sendmsg+0x587/0x8d0 net/socket.c:2298 ___sys_sendmsg net/socket.c:2352 [inline] __sys_sendmsg+0x2c4/0x3b0 net/socket.c:2398 do_syscall_64+0xcb/0x150 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e149 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f153424ac68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e149 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000007 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007ffda09ebfef R14: 00007f153424b9c0 R15: 000000000119bf8c Modules linked in: ---[ end trace 3510dc44607ecffd ]--- RIP: 0010:__list_add_valid+0xa0/0xc0 lib/list_debug.c:23 Code: fb e2 1f 85 4c 89 fe 4c 89 e2 4c 89 f1 31 c0 e8 42 8f 24 ff 0f 0b 48 c7 c7 46 e2 1f 85 4c 89 e6 4c 89 f1 31 c0 e8 2c 8f 24 ff <0f> 0b 48 c7 c7 a9 e2 1f 85 4c 89 f6 4c 89 e1 31 c0 e8 16 8f 24 ff RSP: 0018:ffff8881ed17f2c8 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff8881e6a0cb88 RCX: ff1c07be38543f00 RDX: ffffc90004726000 RSI: 0000000000031064 RDI: 0000000000031065 RBP: ffff8881e6a0cb80 R08: ffffffff814e3421 R09: ffffed103ee25e08 R10: ffffed103ee25e08 R11: 0000000000000000 R12: ffffffff854d2350 R13: dffffc0000000000 R14: ffff8881e6a0cb80 R15: ffff8881e52ab180 FS: 00007f153424b700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa3d31ea000 CR3: 00000001eca85000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400