WARNING in ieee80211_bss_info_change_notify

* WARNING in ieee80211_bss_info_change_notify
@ 2020-10-02 15:39 syzbot
  2020-10-03  2:33   ` syzbot
  0 siblings, 1 reply; 4+ messages in thread
From: syzbot @ 2020-10-02 15:39 UTC (permalink / raw)
  To: davem, johannes, kuba, linux-kernel, linux-wireless, netdev,
	syzkaller-bugs

Hello,

syzbot found the following issue on:

HEAD commit:    fcadab74 Merge tag 'drm-fixes-2020-10-01-1' of git://anong..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=16217b5b900000
kernel config:  https://syzkaller.appspot.com/x/.config?x=4e672827d2ffab1f
dashboard link: https://syzkaller.appspot.com/bug?extid=09d1cd2f71e6dd3bfd2c
compiler:       clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81)
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=161112eb900000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=124fc533900000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+09d1cd2f71e6dd3bfd2c@syzkaller.appspotmail.com

syz-executor423 uses obsolete (PF_INET,SOCK_PACKET)
------------[ cut here ]------------
wlan0: Failed check-sdata-in-driver check, flags: 0x4
WARNING: CPU: 1 PID: 6893 at net/mac80211/driver-ops.h:172 drv_bss_info_changed net/mac80211/driver-ops.h:172 [inline]
WARNING: CPU: 1 PID: 6893 at net/mac80211/driver-ops.h:172 ieee80211_bss_info_change_notify+0x2f4/0x3a0 net/mac80211/main.c:210
Kernel panic - not syncing: panic_on_warn set ...
CPU: 1 PID: 6893 Comm: syz-executor423 Not tainted 5.9.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1d6/0x29e lib/dump_stack.c:118
 panic+0x2c0/0x800 kernel/panic.c:231
 __warn+0x227/0x250 kernel/panic.c:600
 report_bug+0x1b1/0x2e0 lib/bug.c:198
 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:234
 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:254
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536
RIP: 0010:drv_bss_info_changed net/mac80211/driver-ops.h:172 [inline]
RIP: 0010:ieee80211_bss_info_change_notify+0x2f4/0x3a0 net/mac80211/main.c:210
Code: d1 f9 49 8b 87 40 06 00 00 49 81 c7 60 06 00 00 48 85 c0 4c 0f 45 f8 48 c7 c7 14 2b 4f 89 4c 89 fe 89 ea 31 c0 e8 3c eb 62 f9 <0f> 0b e9 f3 fe ff ff e8 00 4c 91 f9 0f 0b e9 e7 fe ff ff 44 89 e1
RSP: 0018:ffffc900055e78d0 EFLAGS: 00010246
RAX: 195afe4c76626a00 RBX: 1ffff11012590bc1 RCX: ffff88809195a180
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000004 R08: ffffffff815e2810 R09: ffffed1015d262c0
R10: ffffed1015d262c0 R11: 0000000000000000 R12: ffff888092c85e08
R13: 0000000002000000 R14: dffffc0000000000 R15: ffff888092c84000
 ieee80211_set_mcast_rate+0x38/0x40 net/mac80211/cfg.c:2453
 rdev_set_mcast_rate net/wireless/rdev-ops.h:1212 [inline]
 nl80211_set_mcast_rate+0x215/0x2c0 net/wireless/nl80211.c:9911
 genl_family_rcv_msg_doit net/netlink/genetlink.c:669 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:714 [inline]
 genl_rcv_msg+0xaf5/0xd70 net/netlink/genetlink.c:731
 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2470
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:742
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0xa57/0xd70 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg net/socket.c:671 [inline]
 ____sys_sendmsg+0x519/0x800 net/socket.c:2353
 ___sys_sendmsg net/socket.c:2407 [inline]
 __sys_sendmsg+0x2b1/0x360 net/socket.c:2440
 do_syscall_64+0x31/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x442039
Code: e8 ac 00 03 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 7b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffcd5724568 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000442039
RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000002000000000 R09: 0000002000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000032
R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000004
Kernel Offset: disabled
Rebooting in 86400 seconds..

---
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