------------[ cut here ]------------
wlan0: Failed check-sdata-in-driver check, flags: 0x0
WARNING: CPU: 0 PID: 4420 at net/mac80211/main.c:288 ieee80211_link_info_change_notify+0x1f7/0x320
Modules linked in:
CPU: 0 PID: 4420 Comm: syz-executor.3 Not tainted 6.4.0-next-20230628 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:ieee80211_link_info_change_notify+0x1f7/0x320
Code: 88 06 00 00 4d 85 ed 0f 84 d6 00 00 00 e8 31 6e 2e fd e8 2c 6e 2e fd 8b 54 24 0c 4c 89 ee 48 c7 c7 20 45 e0 84 e8 f9 51 f9 fc <0f> 0b 48 b8 00 00 00 00 00 fc ff df 48 8b 14 24 48 c1 ea 03 0f b6
RSP: 0018:ffff8880414ef480 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000002000000 RCX: ffffc9000f642000
RDX: 0000000000040000 RSI: ffffffff81174492 RDI: 0000000000000001
RBP: ffff88803db60b80 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88803db62038
R13: ffff88803db60000 R14: ffff888042320e20 R15: 0000000000000000
FS: 00007fbdeed31700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cd22000 CR3: 00000000337ac000 CR4: 0000000000350ef0
Call Trace:
ieee80211_set_mcast_rate+0x42/0x50
nl80211_set_mcast_rate+0x30a/0x680
genl_family_rcv_msg_doit.isra.0+0x1ee/0x2e0
genl_rcv_msg+0x503/0x7e0
netlink_rcv_skb+0x15d/0x450
genl_rcv+0x28/0x40
netlink_unicast+0x552/0x800
netlink_sendmsg+0x923/0xe40
sock_sendmsg+0x1b6/0x200
____sys_sendmsg+0x76a/0x9a0
___sys_sendmsg+0x110/0x1b0
__sys_sendmsg+0xf7/0x1d0
do_syscall_64+0x3f/0x90
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
RIP: 0033:0x7fbdf17bbb19
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:00007fbdeed31188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fbdf18cef60 RCX: 00007fbdf17bbb19
RDX: 0000000000000000 RSI: 0000000020000400 RDI: 0000000000000003
RBP: 00007fbdf1815f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffc1622eef R14: 00007fbdeed31300 R15: 0000000000022000
irq event stamp: 1687
hardirqs last enabled at (1699): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1708): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1244): [] irq_exit_rcu+0x93/0xc0
softirqs last disabled at (1731): [] irq_exit_rcu+0x93/0xc0
---[ end trace 0000000000000000 ]---
Zero length message leads to an empty skb