[syzbot] [wireless?] WARNING in nl80211_set_tx_bitrate_mask

[syzbot] [wireless?] WARNING in nl80211_set_tx_bitrate_mask

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit:    e13caf1c2658 Merge tag 'net-7.2-rc4' of git://git.kernel.o..
git tree:       net
console output: https://syzkaller.appspot.com/x/log.txt?x=12e732b9580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=5c4196ba0e33631d
dashboard link: https://syzkaller.appspot.com/bug?extid=dcaca020ca8377e7ced0
compiler:       Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/b71ec6e89047/disk-e13caf1c.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e865a2cae4e9/vmlinux-e13caf1c.xz
kernel image: https://storage.googleapis.com/syzbot-assets/1cd52838b32f/bzImage-e13caf1c.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+dcaca020ca8377e7ced0@syzkaller.appspotmail.com

------------[ cut here ]------------
wlan0: Failed check-sdata-in-driver check, flags: 0x0
WARNING: net/mac80211/driver-ops.h:884 at drv_set_bitrate_mask net/mac80211/driver-ops.h:884 [inline], CPU#0: syz.3.1244/10657
WARNING: net/mac80211/driver-ops.h:884 at ieee80211_set_bitrate_mask+0x1034/0x1320 net/mac80211/cfg.c:4131, CPU#0: syz.3.1244/10657
Modules linked in:
CPU: 0 UID: 0 PID: 10657 Comm: syz.3.1244 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/25/2026
RIP: 0010:drv_set_bitrate_mask net/mac80211/driver-ops.h:884 [inline]
RIP: 0010:ieee80211_set_bitrate_mask+0x1084/0x1320 net/mac80211/cfg.c:4131
Code: 20 01 00 00 48 85 c0 49 0f 44 ee 48 b8 00 00 00 00 00 fc ff df 0f b6 04 03 84 c0 0f 85 3b 01 00 00 41 8b 17 4c 89 ef 48 89 ee <67> 48 0f b9 3a e9 c3 fd ff ff e8 fd a2 82 f6 90 0f 0b 90 e9 41 fe
RSP: 0018:ffffc90005adeff8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff1100ac7fb25 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff8880563fc120 RDI: ffffffff9069bb20
RBP: ffff8880563fc120 R08: ffff8880527d0faf R09: 1ffff1100a4fa1f5
R10: dffffc0000000000 R11: ffffed100a4fa1f6 R12: ffff8880527d0740
R13: ffffffff9069bb20 R14: ffff8880563fd938 R15: ffff8880563fd928
FS:  00007f230a4956c0(0000) GS:ffff888124f54000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f340e3fe9b0 CR3: 00000000590f6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 rdev_set_bitrate_mask net/wireless/rdev-ops.h:683 [inline]
 nl80211_set_tx_bitrate_mask+0x30b/0x4f0 net/wireless/nl80211.c:14541
 genl_family_rcv_msg_doit+0x233/0x340 net/netlink/genetlink.c:1114
 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline]
 genl_rcv_msg+0x614/0x7a0 net/netlink/genetlink.c:1209
 netlink_rcv_skb+0x226/0x4a0 net/netlink/af_netlink.c:2556
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x7bb/0x940 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1900
 sock_sendmsg_nosec+0x13a/0x180 net/socket.c:775
 __sock_sendmsg net/socket.c:790 [inline]
 ____sys_sendmsg+0x54e/0x850 net/socket.c:2684
 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2738
 __sys_sendmsg net/socket.c:2770 [inline]
 __do_sys_sendmsg net/socket.c:2775 [inline]
 __se_sys_sendmsg net/socket.c:2773 [inline]
 __x64_sys_sendmsg+0x1b1/0x290 net/socket.c:2773
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f230959de99
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f230a495028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2309825fa0 RCX: 00007f230959de99
RDX: 0000000000000000 RSI: 0000200000000280 RDI: 0000000000000005
RBP: 00007f2309633eaf R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2309826038 R14: 00007f2309825fa0 R15: 00007ffc28746ce8
 </TASK>
----------------
Code disassembly (best guess):
   0:	20 01                	and    %al,(%rcx)
   2:	00 00                	add    %al,(%rax)
   4:	48 85 c0             	test   %rax,%rax
   7:	49 0f 44 ee          	cmove  %r14,%rbp
   b:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  12:	fc ff df
  15:	0f b6 04 03          	movzbl (%rbx,%rax,1),%eax
  19:	84 c0                	test   %al,%al
  1b:	0f 85 3b 01 00 00    	jne    0x15c
  21:	41 8b 17             	mov    (%r15),%edx
  24:	4c 89 ef             	mov    %r13,%rdi
  27:	48 89 ee             	mov    %rbp,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	e9 c3 fd ff ff       	jmp    0xfffffdf7
  34:	e8 fd a2 82 f6       	call   0xf682a336
  39:	90                   	nop
  3a:	0f 0b                	ud2
  3c:	90                   	nop
  3d:	e9                   	.byte 0xe9
  3e:	41                   	rex.B
  3f:	fe                   	.byte 0xfe


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.

If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title

If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)

If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report

If you want to undo deduplication, reply with:
#syz undup