[syzbot] [wireless?] WARNING in cfg80211_wext_siwrate

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 31a420a822ff bpf: Check sk_state before sk_protocol in bpf..
git tree: bpf
console output: https://syzkaller.appspot.com/x/log.txt?x=14370132580000
kernel config: https://syzkaller.appspot.com/x/.config?x=4e38b15c29e6a1d9
dashboard link: https://syzkaller.appspot.com/bug?extid=af177aa139efdd13a9da
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/180a2e05da8a/disk-31a420a8.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/7e4b97c130ad/vmlinux-31a420a8.xz
kernel image: https://storage.googleapis.com/syzbot-assets/589c3b9f04af/bzImage-31a420a8.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+af177a...@syzkaller.appspotmail.com

------------[ cut here ]------------
wlan1: 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#1: syz.1.7134/31079
WARNING: net/mac80211/driver-ops.h:884 at ieee80211_set_bitrate_mask+0x1034/0x1320 net/mac80211/cfg.c:4134, CPU#1: syz.1.7134/31079
Modules linked in:
CPU: 1 UID: 0 PID: 31079 Comm: syz.1.7134 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
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:4134
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 ad 3b 82 f6 90 0f 0b 90 e9 41 fe
RSP: 0018:ffffc90004457778 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 1ffff11006ac0325 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: ffff888035600120 RDI: ffffffff9069c4f0
RBP: ffff888035600120 R08: ffff888069d60faf R09: 1ffff1100d3ac1f5
R10: dffffc0000000000 R11: ffffed100d3ac1f6 R12: ffff888069d60740
R13: ffffffff9069c4f0 R14: ffff888035601938 R15: ffff888035601928
FS: 00007f1ff74ce6c0(0000) GS:ffff888125050000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2f81aff8 CR3: 000000007c55c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
<TASK>
rdev_set_bitrate_mask net/wireless/rdev-ops.h:683 [inline]
cfg80211_wext_siwrate+0x78d/0x9d0 net/wireless/wext-compat.c:1238
ioctl_standard_call+0xc5/0x160 net/wireless/wext-core.c:1042
wireless_process_ioctl net/wireless/wext-core.c:-1 [inline]
wext_ioctl_dispatch+0xee/0x410 net/wireless/wext-core.c:1013
wext_handle_ioctl+0x110/0x1d0 net/wireless/wext-core.c:1074
sock_ioctl+0x159/0x7e0 net/socket.c:1353
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:597 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
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: 0033:0x7f1ff659e0d9
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:00007f1ff74ce028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f1ff6825fa0 RCX: 00007f1ff659e0d9
RDX: 0000200000000040 RSI: 0000000000008b20 RDI: 0000000000000008
RBP: 00007f1ff6635024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f1ff6826038 R14: 00007f1ff6825fa0 R15: 00007ffebb92fee8
</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 ad 3b 82 f6 call 0xf6823be6
39: 90 nop
3a: 0f 0b ud2
3c: 90 nop
3d: e9 .byte 0xe9
3e: 41 rex.B
3f: fe .byte 0xfe


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