[syzbot] [wireless?] WARNING in ieee80211_tdls_oper (3)

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1:57 PM (7 hours ago) 1:57 PM
to joha...@sipsolutions.net, linux-...@vger.kernel.org, linux-w...@vger.kernel.org, net...@vger.kernel.org, syzkall...@googlegroups.com
Hello,

syzbot found the following issue on:

HEAD commit: c113d5e32678 Merge branch 'net-spacemit-a-few-error-handli..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=171fc8ba580000
kernel config: https://syzkaller.appspot.com/x/.config?x=779072223d02a312
dashboard link: https://syzkaller.appspot.com/bug?extid=56b6a844a4ea74487b7b
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1736875a580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=109fc8ba580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a1a0aa684791/disk-c113d5e3.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/6d0461aed5ba/vmlinux-c113d5e3.xz
kernel image: https://storage.googleapis.com/syzbot-assets/05b26502bb1f/bzImage-c113d5e3.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+56b6a8...@syzkaller.appspotmail.com

mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium
------------[ cut here ]------------
is_zero_ether_addr(sdata->u.mgd.tdls_peer) || !ether_addr_equal(sdata->u.mgd.tdls_peer, peer)
WARNING: net/mac80211/tdls.c:1461 at ieee80211_tdls_oper+0x38f/0x680 net/mac80211/tdls.c:1460, CPU#1: syz.0.446/6497
Modules linked in:
CPU: 1 UID: 0 PID: 6497 Comm: syz.0.446 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:ieee80211_tdls_oper+0x38f/0x680 net/mac80211/tdls.c:1460
Code: 6f 01 00 00 e8 d2 d0 89 f6 eb 22 e8 cb d0 89 f6 4c 89 e2 eb 21 e8 c1 d0 89 f6 b8 bd ff ff ff e9 21 fe ff ff e8 b2 d0 89 f6 90 <0f> 0b 90 4c 8b 7c 24 08 48 8b 14 24 4d 8d a7 fa 1d 00 00 4c 89 e0
RSP: 0018:ffffc90003187320 EFLAGS: 00010293
RAX: ffffffff8b3bc8be RBX: dffffc0000000000 RCX: ffff8880295bdb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888030ce0187 R09: 1ffff1100619c030
R10: dffffc0000000000 R11: ffffed100619c031 R12: ffff8880688addfe
R13: ffff8880688acdc0 R14: 1ffff1100d115afe R15: 0000000000000000
FS: 0000555589322500(0000) GS:ffff888125561000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000021c0 CR3: 00000000682a6000 CR4: 00000000003526f0
Call Trace:
<TASK>
rdev_tdls_oper net/wireless/rdev-ops.h:945 [inline]
nl80211_tdls_oper+0x270/0x470 net/wireless/nl80211.c:13748
genl_family_rcv_msg_doit+0x22a/0x330 net/netlink/genetlink.c:1114
genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline]
genl_rcv_msg+0x61c/0x7a0 net/netlink/genetlink.c:1209
netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2550
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218
netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]
netlink_unicast+0x80f/0x9b0 net/netlink/af_netlink.c:1344
netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1894
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg net/socket.c:742 [inline]
____sys_sendmsg+0x972/0x9f0 net/socket.c:2592
___sys_sendmsg+0x2a5/0x360 net/socket.c:2646
__sys_sendmsg net/socket.c:2678 [inline]
__do_sys_sendmsg net/socket.c:2683 [inline]
__se_sys_sendmsg net/socket.c:2681 [inline]
__x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2681
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc82559c799
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:00007ffce312b098 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fc825815fa0 RCX: 00007fc82559c799
RDX: 0000000000000050 RSI: 0000200000000240 RDI: 0000000000000005
RBP: 00007fc825632bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fc825815fac R14: 00007fc825815fa0 R15: 00007fc825815fa0
</TASK>


---
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