[syzbot] [wireless?] WARNING in ieee80211_tx_skb_tid

[syzbot]

Hello,

syzbot found the following issue on:

HEAD commit: 91325f31afc1 Merge tag 'mm-hotfixes-stable-2025-08-12-20-5..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=11fecda2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=412ee2f8b704a5e6
dashboard link: https://syzkaller.appspot.com/bug?extid=8bd4574e8c52c48c2595
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7

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

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/8c83f4baf60f/disk-91325f31.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/be959267627a/vmlinux-91325f31.xz
kernel image: https://storage.googleapis.com/syzbot-assets/68dffaf16c63/bzImage-91325f31.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+8bd457...@syzkaller.appspotmail.com

------------[ cut here ]------------
WARNING: CPU: 0 PID: 11866 at net/mac80211/tx.c:6202 ieee80211_tx_skb_tid+0x380/0x420 net/mac80211/tx.c:6202
Modules linked in:
CPU: 0 UID: 0 PID: 11866 Comm: syz.1.2132 Not tainted 6.17.0-rc1-syzkaller-00029-g91325f31afc1 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:ieee80211_tx_skb_tid+0x380/0x420 net/mac80211/tx.c:6202
Code: 9e a4 f6 e9 b1 fe ff ff e8 ed c3 c6 f6 90 0f 0b 90 e9 1f fe ff ff e8 df c3 c6 f6 90 0f 0b 90 e9 2a fe ff ff e8 d1 c3 c6 f6 90 <0f> 0b 90 e8 58 e2 fd ff 31 ff 48 8b 34 24 ba 02 00 00 00 48 83 c4
RSP: 0018:ffffc9000b697478 EFLAGS: 00010287
RAX: ffffffff8af8e7df RBX: ffffffff8af8e48f RCX: 0000000000080000
RDX: ffffc9000b7d9000 RSI: 000000000000298a RDI: 000000000000298b
RBP: 00000000ffffffff R08: 0000000000000000 R09: ffffffff8af8e48f
R10: dffffc0000000000 R11: ffffed100ebe1146 R12: ffff888054e94d80
R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000
FS: 00007f5035e4d6c0(0000) GS:ffff888125c1c000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f53e6e5ed58 CR3: 000000007d2fc000 CR4: 00000000003526f0
Call Trace:
<TASK>
ieee80211_tx_skb net/mac80211/ieee80211_i.h:2409 [inline]
mesh_plink_frame_tx+0x734/0xc10 net/mac80211/mesh_plink.c:354
mesh_plink_deactivate+0x18e/0x2f0 net/mac80211/mesh_plink.c:410
mesh_sta_cleanup+0x42/0x150 net/mac80211/mesh.c:171
__cleanup_single_sta net/mac80211/sta_info.c:167 [inline]
cleanup_single_sta+0x40f/0x660 net/mac80211/sta_info.c:192
__sta_info_flush+0x5e4/0x710 net/mac80211/sta_info.c:1683
sta_info_flush net/mac80211/sta_info.h:970 [inline]
ieee80211_do_stop+0x399/0x1fb0 net/mac80211/iface.c:509
ieee80211_stop+0x1b1/0x240 net/mac80211/iface.c:814
__dev_close_many+0x361/0x6f0 net/core/dev.c:1755
__dev_close net/core/dev.c:1767 [inline]
__dev_change_flags+0x2c7/0x6d0 net/core/dev.c:9530
netif_change_flags+0x88/0x1a0 net/core/dev.c:9595
dev_change_flags+0x130/0x260 net/core/dev_api.c:68
dev_ioctl+0x7b4/0x1150 net/core/dev_ioctl.c:824
sock_do_ioctl+0x22c/0x300 net/socket.c:1252
sock_ioctl+0x576/0x790 net/socket.c:1359
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:598 [inline]
__se_sys_ioctl+0xfc/0x170 fs/ioctl.c:584
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5034f8ebe9
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:00007f5035e4d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f50351b5fa0 RCX: 00007f5034f8ebe9
RDX: 0000200000000000 RSI: 0000000000008914 RDI: 0000000000000004
RBP: 00007f5035011e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f50351b6038 R14: 00007f50351b5fa0 R15: 00007f50352dfa28
</TASK>


---
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[syzbot]

syzbot has found a reproducer for the following issue on:

HEAD commit: d1d36025a617 Merge tag 'probes-v6.19' of git://git.kernel...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=12b44992580000
kernel config: https://syzkaller.appspot.com/x/.config?x=eaa3e2adda258a7
dashboard link: https://syzkaller.appspot.com/bug?extid=8bd4574e8c52c48c2595
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14ad46c2580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11d0bc1a580000

Downloadable assets:
disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-d1d36025.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/8198d2c1f670/vmlinux-d1d36025.xz
kernel image: https://storage.googleapis.com/syzbot-assets/51df1359897b/bzImage-d1d36025.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+8bd457...@syzkaller.appspotmail.com

------------[ cut here ]------------

WARNING: net/mac80211/tx.c:6303 at ieee80211_tx_skb_tid+0x3b4/0x470 net/mac80211/tx.c:6303, CPU#0: syz.0.18/5530
Modules linked in:
CPU: 0 UID: 0 PID: 5530 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full)
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_tx_skb_tid+0x3b4/0x470 net/mac80211/tx.c:6303
Code: f6 ce f6 e9 b1 fe ff ff e8 b9 da f1 f6 90 0f 0b 90 e9 e2 fe ff ff e8 ab da f1 f6 90 0f 0b 90 e9 2a fe ff ff e8 9d da f1 f6 90 <0f> 0b 90 e8 c4 e1 fd ff 31 ff 48 8b 34 24 ba 02 00 00 00 48 83 c4
RSP: 0018:ffffc90002a7f458 EFLAGS: 00010293
RAX: ffffffff8acf8083 RBX: ffffffff8acf7cff RCX: ffff888000f54980
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 00000000ffffffff R08: ffffffff8acf7cff R09: ffffffff8df41cc0
R10: dffffc0000000000 R11: ffffed10092eb486 R12: ffff88801c1b8d80

R13: 0000000000000000 R14: 0000000000000001 R15: dffffc0000000000

FS: 00005555853f1500(0000) GS:ffff88808d683000(0000) knlGS:0000000000000000

CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033

CR2: 0000564770e69950 CR3: 0000000032ccf000 CR4: 0000000000352ef0
Call Trace:
<TASK>
ieee80211_tx_skb net/mac80211/ieee80211_i.h:2418 [inline]

mesh_plink_frame_tx+0x734/0xc10 net/mac80211/mesh_plink.c:354
mesh_plink_deactivate+0x18e/0x2f0 net/mac80211/mesh_plink.c:410
mesh_sta_cleanup+0x42/0x150 net/mac80211/mesh.c:171
__cleanup_single_sta net/mac80211/sta_info.c:167 [inline]
cleanup_single_sta+0x40f/0x660 net/mac80211/sta_info.c:192
__sta_info_flush+0x5e4/0x710 net/mac80211/sta_info.c:1683
sta_info_flush net/mac80211/sta_info.h:970 [inline]

ieee80211_do_stop+0x397/0x1f70 net/mac80211/iface.c:526
ieee80211_stop+0x1b1/0x240 net/mac80211/iface.c:828
__dev_close_many+0x344/0x6b0 net/core/dev.c:1756
__dev_close net/core/dev.c:1768 [inline]
__dev_change_flags+0x2be/0x680 net/core/dev.c:9732
netif_change_flags+0x88/0x1a0 net/core/dev.c:9797
dev_change_flags+0x130/0x260 net/core/dev_api.c:68
dev_ioctl+0x7b4/0x1150 net/core/dev_ioctl.c:842
sock_do_ioctl+0x22c/0x300 net/socket.c:1259
sock_ioctl+0x576/0x790 net/socket.c:1366
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+0xfa/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fba6778f7c9

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:00007fff8aa47b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fba679e5fa0 RCX: 00007fba6778f7c9

RDX: 0000200000000000 RSI: 0000000000008914 RDI: 0000000000000004

RBP: 00007fba67813f91 R08: 0000000000000000 R09: 0000000000000000

R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000

R13: 00007fba679e5fa0 R14: 00007fba679e5fa0 R15: 0000000000000003
</TASK>


---
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