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Date: Thu, 12 Oct 2023 07:41:45 -0700
From: syzbot <syzbot+dd4779978217b1973180@...kaller.appspotmail.com>
To: davem@...emloft.net, edumazet@...gle.com,
johannes@...solutions.net, kuba@...nel.org,
linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org,
netdev@...r.kernel.org, pabeni@...hat.com,
syzkaller-bugs@...glegroups.com
Subject: [syzbot] [net?] [wireless?] WARNING in ieee80211_bss_info_change_notify
(2)
Hello,
syzbot found the following issue on:
HEAD commit: 401644852d0b Merge tag 'fs_for_v6.6-rc6' of git://git.kern..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=176b01ad680000
kernel config: https://syzkaller.appspot.com/x/.config?x=32d0b9b42ceb8b10
dashboard link: https://syzkaller.appspot.com/bug?extid=dd4779978217b1973180
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: i386
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/94b84d66fc32/disk-40164485.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/2a510b785da4/vmlinux-40164485.xz
kernel image: https://storage.googleapis.com/syzbot-assets/663b784d908b/bzImage-40164485.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+dd4779978217b1973180@...kaller.appspotmail.com
------------[ cut here ]------------
wlan1: Failed check-sdata-in-driver check, flags: 0x0
WARNING: CPU: 0 PID: 9044 at net/mac80211/main.c:236 ieee80211_bss_info_change_notify+0x2c9/0x820 net/mac80211/main.c:236
Modules linked in:
CPU: 0 PID: 9044 Comm: syz-executor.2 Not tainted 6.6.0-rc5-syzkaller-00072-g401644852d0b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023
RIP: 0010:ieee80211_bss_info_change_notify+0x2c9/0x820 net/mac80211/main.c:236
Code: 00 00 e8 4a e3 d6 f7 48 8b 74 24 08 48 89 74 24 08 e8 3b e3 d6 f7 8b 14 24 48 c7 c7 c0 a2 c4 8b 48 8b 74 24 08 e8 87 0b 9d f7 <0f> 0b e8 20 e3 d6 f7 4c 89 f2 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc900062472d8 EFLAGS: 00010286
RAX: 0000000000000000 RBX: ffff888020030c80 RCX: ffffc90003ec1000
RDX: 0000000000040000 RSI: ffffffff814df0c6 RDI: 0000000000000001
RBP: 0000000000000a00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888078ef8e20
R13: ffff8880200328b0 R14: ffff8880200315a0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0063) knlGS:00000000f7f3ab40
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f72646b0 CR3: 0000000020d94000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ieee80211_ibss_disconnect+0x411/0x9d0 net/mac80211/ibss.c:726
ieee80211_ibss_leave+0x16/0x160 net/mac80211/ibss.c:1872
rdev_leave_ibss net/wireless/rdev-ops.h:569 [inline]
__cfg80211_leave_ibss+0x1a2/0x410 net/wireless/ibss.c:210
cfg80211_leave_ibss+0x59/0x80 net/wireless/ibss.c:228
cfg80211_change_iface+0x457/0xdf0 net/wireless/util.c:1137
nl80211_set_interface+0x708/0x9b0 net/wireless/nl80211.c:4222
genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:971
genl_family_rcv_msg net/netlink/genetlink.c:1051 [inline]
genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1066
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2545
genl_rcv+0x28/0x40 net/netlink/genetlink.c:1075
netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline]
netlink_unicast+0x536/0x810 net/netlink/af_netlink.c:1368
netlink_sendmsg+0x93c/0xe40 net/netlink/af_netlink.c:1910
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0xd5/0x180 net/socket.c:745
____sys_sendmsg+0x6ac/0x940 net/socket.c:2558
___sys_sendmsg+0x135/0x1d0 net/socket.c:2612
__sys_sendmsg+0x117/0x1e0 net/socket.c:2641
do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]
__do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178
do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203
entry_SYSENTER_compat_after_hwframe+0x70/0x82
RIP: 0023:0xf7f3f579
Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00
RSP: 002b:00000000f7f3a5ac EFLAGS: 00000292 ORIG_RAX: 0000000000000172
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000100
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
----------------
Code disassembly (best guess), 2 bytes skipped:
0: 10 06 adc %al,(%rsi)
2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi
6: 10 07 adc %al,(%rdi)
8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi
c: 10 08 adc %cl,(%rax)
e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi
1e: 00 51 52 add %dl,0x52(%rcx)
21: 55 push %rbp
22: 89 e5 mov %esp,%ebp
24: 0f 34 sysenter
26: cd 80 int $0x80
* 28: 5d pop %rbp <-- trapping instruction
29: 5a pop %rdx
2a: 59 pop %rcx
2b: c3 ret
2c: 90 nop
2d: 90 nop
2e: 90 nop
2f: 90 nop
30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@...glegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the bug is already fixed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite bug's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the bug is a duplicate of another bug, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
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