Message-ID: <6883ccd2.a00a0220.2f88df.0056.GAE@google.com>
Date: Fri, 25 Jul 2025 11:28:34 -0700
From: syzbot <syzbot+a06b95a67a174af018cf@...kaller.appspotmail.com>
To: johannes@...solutions.net, linux-kernel@...r.kernel.org, 
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] [wireless?] WARNING in ieee80211_ocb_rx_no_sta

Hello,

syzbot found the following issue on:

HEAD commit:    89be9a83ccf1 Linux 6.16-rc7
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17798fd4580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9f175a9275d2cdd7
dashboard link: https://syzkaller.appspot.com/bug?extid=a06b95a67a174af018cf
compiler:       gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/34b3f6e5e365/disk-89be9a83.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/55356b071589/vmlinux-89be9a83.xz
kernel image: https://storage.googleapis.com/syzbot-assets/5daf2522b291/bzImage-89be9a83.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+a06b95a67a174af018cf@...kaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 9078 at net/mac80211/ocb.c:63 ieee80211_ocb_rx_no_sta+0x583/0x710 net/mac80211/ocb.c:63
Modules linked in:
CPU: 0 UID: 0 PID: 9078 Comm: syz.1.959 Not tainted 6.16.0-rc7-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ieee80211_ocb_rx_no_sta+0x583/0x710 net/mac80211/ocb.c:63
Code: 48 c7 c2 80 c5 08 8d be 65 03 00 00 48 c7 c7 a0 c4 08 8d c6 05 4b b5 78 05 01 e8 c8 63 7f f6 e9 0b fc ff ff e8 ce 12 a3 f6 90 <0f> 0b 90 e8 25 ac 6d 00 31 ff 89 c3 89 c6 e8 fa 0d a3 f6 85 db 75
RSP: 0018:ffffc90000007a08 EFLAGS: 00010283
RAX: 000000000000022a RBX: ffff888056a7cd80 RCX: ffffc90002181000
RDX: 0000000000040000 RSI: ffffffff8b18d5a2 RDI: 0000000000000005
RBP: ffff888025e9e40a R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888030e40e40
R13: 0000000000000001 R14: 0000000000000000 R15: ffff888033a44500
FS:  00007f8e60a7d6c0(0000) GS:ffff888124720000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3a8d5a CR3: 00000000343fa000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 ieee80211_accept_frame net/mac80211/rx.c:4445 [inline]
 ieee80211_prepare_and_rx_handle+0x55a1/0x77a0 net/mac80211/rx.c:4999
 ieee80211_rx_for_interface+0x10a/0x1f0 net/mac80211/rx.c:5129
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5285 [inline]
 ieee80211_rx_list+0x10d7/0x2980 net/mac80211/rx.c:5420
 ieee80211_rx_napi+0xdc/0x410 net/mac80211/rx.c:5443
 ieee80211_rx include/net/mac80211.h:5185 [inline]
 ieee80211_handle_queued_frames+0xd5/0x130 net/mac80211/main.c:441
 tasklet_action_common+0x281/0x400 kernel/softirq.c:829
 handle_softirqs+0x219/0x8e0 kernel/softirq.c:579
 do_softirq kernel/softirq.c:480 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:467
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:407
 ieee80211_tx_skb_tid+0x176/0x4f0 net/mac80211/tx.c:6131
 ieee80211_mgmt_tx+0x14d2/0x2310 net/mac80211/offchannel.c:1023
 rdev_mgmt_tx net/wireless/rdev-ops.h:762 [inline]
 cfg80211_mlme_mgmt_tx+0x7d5/0x1660 net/wireless/mlme.c:938
 nl80211_tx_mgmt+0x9f9/0xd60 net/wireless/nl80211.c:12921
 genl_family_rcv_msg_doit+0x206/0x2f0 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+0x155/0x420 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+0x58d/0x850 net/netlink/af_netlink.c:1346
 netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1896
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg net/socket.c:727 [inline]
 ____sys_sendmsg+0xa95/0xc70 net/socket.c:2566
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2620
 __sys_sendmsg+0x16d/0x220 net/socket.c:2652
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8e5fb8e9a9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8e60a7d038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8e5fdb5fa0 RCX: 00007f8e5fb8e9a9
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 0000000000000003
RBP: 00007f8e5fc10d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8e5fdb5fa0 R15: 00007ffd54948378
 </TASK>


---
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