netlink: 'syz.2.1843': attribute type 10 has an invalid length. ------------[ cut here ]------------ wlan1: Failed check-sdata-in-driver check, flags: 0x1 WARNING: CPU: 3 PID: 12627 at net/mac80211/driver-ops.c:366 drv_unassign_vif_chanctx+0x247/0x850 net/mac80211/driver-ops.c:366 Modules linked in: CPU: 3 UID: 0 PID: 12627 Comm: syz.2.1843 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:drv_unassign_vif_chanctx+0x247/0x850 net/mac80211/driver-ops.c:366 Code: 74 24 10 48 81 c6 20 01 00 00 48 89 74 24 10 e8 5f d7 ee f6 8b 54 24 04 48 8b 74 24 10 48 c7 c7 60 bd e2 8c e8 aa 0a ad f6 90 <0f> 0b 90 90 e8 40 d7 ee f6 4c 89 f2 48 b8 00 00 00 00 00 fc ff df RSP: 0018:ffffc9000edd7488 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888042ee8d80 RCX: ffffc900245db000 RDX: 0000000000080000 RSI: ffffffff817b1ce5 RDI: 0000000000000001 RBP: ffff88803ab18e80 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888042eeaad8 R13: 0000000000000000 R14: ffff888042ee97b8 R15: ffff888042eeaa80 FS: 00007f44cfe016c0(0000) GS:ffff8880d6d05000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f44cef75440 CR3: 00000000530fd000 CR4: 0000000000352ef0 Call Trace: ieee80211_assign_link_chanctx+0x3f1/0xf00 net/mac80211/chan.c:905 __ieee80211_link_release_channel+0x273/0x4b0 net/mac80211/chan.c:1879 ieee80211_link_release_channel+0x128/0x200 net/mac80211/chan.c:2154 ieee80211_if_change_type+0x2b0/0x800 net/mac80211/iface.c:2015 ieee80211_change_iface+0xa5/0x500 net/mac80211/cfg.c:254 rdev_change_virtual_intf net/wireless/rdev-ops.h:74 [inline] cfg80211_change_iface+0x582/0xdc0 net/wireless/util.c:1238 nl80211_set_interface+0x911/0xcb0 net/wireless/nl80211.c:4632 genl_family_rcv_msg_doit+0x209/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] __sys_sendto+0x4a3/0x520 net/socket.c:2244 __do_sys_sendto net/socket.c:2251 [inline] __se_sys_sendto net/socket.c:2247 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2247 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f44cef9165c Code: 2a 5f 02 00 44 8b 4c 24 2c 4c 8b 44 24 20 89 c5 44 8b 54 24 28 48 8b 54 24 18 b8 2c 00 00 00 48 8b 74 24 10 8b 7c 24 08 0f 05 <48> 3d 00 f0 ff ff 77 34 89 ef 48 89 44 24 08 e8 70 5f 02 00 48 8b RSP: 002b:00007f44cfdffe20 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f44cfdfffa0 RCX: 00007f44cef9165c RDX: 0000000000000024 RSI: 00007f44cfdffff0 RDI: 0000000000000008 RBP: 0000000000000000 R08: 00007f44cfdffe74 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000008 R13: 0000000000000000 R14: 00007f44cfdffff0 R15: 0000000000000000