Message-ID: <678d7183.050a0220.303755.005f.GAE@google.com>
Date: Sun, 19 Jan 2025 13:41:23 -0800
From: syzbot <syzbot+e55106f8389651870be0@...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_tdls_build_mgmt_packet_data

Hello,

syzbot found the following issue on:

HEAD commit:    619f0b6fad52 Merge tag 'seccomp-v6.13-rc8' of git://git.ke..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=10fb49df980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=aadf89e2f6db86cc
dashboard link: https://syzkaller.appspot.com/bug?extid=e55106f8389651870be0
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

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

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-619f0b6f.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f181fafa1b35/vmlinux-619f0b6f.xz
kernel image: https://storage.googleapis.com/syzbot-assets/174e5d6e6837/bzImage-619f0b6f.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+e55106f8389651870be0@...kaller.appspotmail.com

mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5320 at net/mac80211/tdls.c:611 ieee80211_tdls_add_setup_cfm_ies net/mac80211/tdls.c:611 [inline]
WARNING: CPU: 0 PID: 5320 at net/mac80211/tdls.c:611 ieee80211_tdls_add_ies net/mac80211/tdls.c:762 [inline]
WARNING: CPU: 0 PID: 5320 at net/mac80211/tdls.c:611 ieee80211_tdls_build_mgmt_packet_data+0x329c/0x4080 net/mac80211/tdls.c:984
Modules linked in:
CPU: 0 UID: 0 PID: 5320 Comm: syz.0.0 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ieee80211_tdls_add_setup_cfm_ies net/mac80211/tdls.c:611 [inline]
RIP: 0010:ieee80211_tdls_add_ies net/mac80211/tdls.c:762 [inline]
RIP: 0010:ieee80211_tdls_build_mgmt_packet_data+0x329c/0x4080 net/mac80211/tdls.c:984
Code: f5 ff ff e8 16 6e 4a f6 90 0f 0b 90 4c 8b 7c 24 10 e9 7e fe ff ff e8 03 6e 4a f6 90 0f 0b 90 e9 70 fe ff ff e8 f5 6d 4a f6 90 <0f> 0b 90 e9 62 fe ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c c7
RSP: 0018:ffffc9000d47f0c0 EFLAGS: 00010287
RAX: ffffffff8b55147b RBX: ffff888040d3cd80 RCX: 0000000000100000
RDX: ffffc9000e5d2000 RSI: 00000000000002e3 RDI: 00000000000002e4
RBP: ffffc9000d47f260 R08: ffffffff901983b7 R09: 1ffffffff2033076
R10: dffffc0000000000 R11: fffffbfff2033077 R12: dffffc0000000000
R13: 0000000000000017 R14: 0000000000000000 R15: ffff88803f0f5c80
FS:  00007f0f00e996c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200021c0 CR3: 0000000040622000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_tdls_prep_mgmt_packet+0x3b6/0x860 net/mac80211/tdls.c:1058
 ieee80211_tdls_mgmt+0x8cf/0x10a0 net/mac80211/tdls.c:1299
 rdev_tdls_mgmt net/wireless/rdev-ops.h:926 [inline]
 nl80211_tdls_mgmt+0x4d8/0x770 net/wireless/nl80211.c:12540
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2542
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1347
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1891
 sock_sendmsg_nosec net/socket.c:711 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:726
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583
 ___sys_sendmsg net/socket.c:2637 [inline]
 __sys_sendmsg+0x269/0x350 net/socket.c:2669
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0efff85d29
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:00007f0f00e99038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0f00175fa0 RCX: 00007f0efff85d29
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000009
RBP: 00007f0f00001b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0f00175fa0 R15: 00007ffe23266438
 </TASK>


---
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