WARNING: ODEBUG bug in ieee80211_ibss_setup

WARNING: ODEBUG bug in ieee80211_ibss_setup_sdata
Status: upstream: reported C repro on 2021/01/28 14:29
Reported-by: syzbot+e6d0c38bbcbe4d450b6c@syzkaller.appspotmail.com
First crash: 35d, last: 24d

Cause bisection: introduced by (bisect log) :
commit 7dfd8ac327301f302b03072066c66eb32578e940
Author: Ramon Fontes <ramonreisfontes@gmail.com>
Date: Thu Oct 10 18:13:07 2019 +0000

mac80211_hwsim: add support for OCB

Crash: WARNING: ODEBUG bug in ieee80211_ibss_setup_sdata (log)
Repro: C syz .config

Sample crash report:

------------[ cut here ]------------
ODEBUG: init active (active state 0) object type: timer_list hint: 0x0
WARNING: CPU: 0 PID: 8466 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 0 PID: 8466 Comm: syz-executor385 Not tainted 5.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 98 9e 89 4c 89 ee 48 c7 c7 00 8c 9e 89 e8 a2 b5 f6 04 <0f> 0b 83 05 45 0f e0 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000140f470 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff88802786e2c0 RSI: ffffffff815b7455 RDI: fffff52000281e80
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815b05fe R11: 0000000000000000 R12: ffffffff894d8c60
R13: ffffffff899e9100 R14: ffffffff8161d1a0 R15: ffffffff8fe5b4c0
FS:  0000000000b41300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efcbf48b000 CR3: 000000002421a000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __debug_object_init+0x524/0xd10 lib/debugobjects.c:588
 debug_timer_init kernel/time/timer.c:722 [inline]
 debug_init kernel/time/timer.c:770 [inline]
 init_timer_key+0x2d/0x340 kernel/time/timer.c:814
 ieee80211_ibss_setup_sdata+0x34/0x1b0 net/mac80211/ibss.c:1734
 ieee80211_setup_sdata+0xc3a/0xed0 net/mac80211/iface.c:1534
 ieee80211_runtime_change_iftype net/mac80211/iface.c:1640 [inline]
 ieee80211_if_change_type+0x56c/0x6e0 net/mac80211/iface.c:1662
 ieee80211_change_iface+0x26/0x210 net/mac80211/cfg.c:157
 rdev_change_virtual_intf net/wireless/rdev-ops.h:69 [inline]
 cfg80211_change_iface+0x307/0xf10 net/wireless/util.c:1067
 nl80211_set_interface+0x65c/0x8d0 net/wireless/nl80211.c:3839
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 __sys_sendto+0x21c/0x320 net/socket.c:1975
 __do_sys_sendto net/socket.c:1987 [inline]
 __se_sys_sendto net/socket.c:1983 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1983
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x402c66
Code: 48 c7 c0 ff ff ff ff eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 72 c3 90 55 48 83 ec 30 44 89 4c 24 2c 4c 89
RAX: ffffffffffffffda RBX: 00007ffe47300f50 RCX: 0000000000402c66
RDX: 0000000000000024 RSI: 00007ffe47300fa0 RDI: 0000000000000003
CPU: 0 PID: 8466 Comm: syz-executor385 Not tainted 5.11.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x107/0x163 lib/dump_stack.c:120
 panic+0x306/0x73d kernel/panic.c:231
 __warn.cold+0x35/0x44 kernel/panic.c:605
 report_bug+0x1bd/0x210 lib/bug.c:198
 handle_bug+0x3c/0x60 arch/x86/kernel/traps.c:239
 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:259
 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:578
RIP: 0010:debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 98 9e 89 4c 89 ee 48 c7 c7 00 8c 9e 89 e8 a2 b5 f6 04 <0f> 0b 83 05 45 0f e0 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000140f470 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: ffff88802786e2c0 RSI: ffffffff815b7455 RDI: fffff52000281e80
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815b05fe R11: 0000000000000000 R12: ffffffff894d8c60
R13: ffffffff899e9100 R14: ffffffff8161d1a0 R15: ffffffff8fe5b4c0
 __debug_object_init+0x524/0xd10 lib/debugobjects.c:588
 debug_timer_init kernel/time/timer.c:722 [inline]
 debug_init kernel/time/timer.c:770 [inline]
 init_timer_key+0x2d/0x340 kernel/time/timer.c:814
 ieee80211_ibss_setup_sdata+0x34/0x1b0 net/mac80211/ibss.c:1734
 ieee80211_setup_sdata+0xc3a/0xed0 net/mac80211/iface.c:1534
 ieee80211_runtime_change_iftype net/mac80211/iface.c:1640 [inline]
 ieee80211_if_change_type+0x56c/0x6e0 net/mac80211/iface.c:1662
 ieee80211_change_iface+0x26/0x210 net/mac80211/cfg.c:157
 rdev_change_virtual_intf net/wireless/rdev-ops.h:69 [inline]
 cfg80211_change_iface+0x307/0xf10 net/wireless/util.c:1067
 nl80211_set_interface+0x65c/0x8d0 net/wireless/nl80211.c:3839
 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:739
 genl_family_rcv_msg net/netlink/genetlink.c:783 [inline]
 genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:800
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:672
 __sys_sendto+0x21c/0x320 net/socket.c:1975
 __do_sys_sendto net/socket.c:1987 [inline]
 __se_sys_sendto net/socket.c:1983 [inline]
 __x64_sys_sendto+0xdd/0x1b0 net/socket.c:1983
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x402c66
Code: 48 c7 c0 ff ff ff ff eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 11 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 72 c3 90 55 48 83 ec 30 44 89 4c 24 2c 4c 89
RSP: 002b:00007ffe47300e88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007ffe47300f50 RCX: 0000000000402c66
RDX: 0000000000000024 RSI: 00007ffe47300fa0 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffe47300e94 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000003 R14: 0000000000000000 R15: 00007ffe47300fa0
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (2):
Manager	Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Title
ci-upstream-kasan-gce-selinux-root	2021/02/04 15:46	upstream	61556703	42b90a7c	.config	log	report	syz	C		WARNING: ODEBUG bug in ieee80211_ibss_setup_sdata
ci-upstream-kasan-gce-root	2021/01/24 14:26	upstream	e1ae4b0b	52e37319	.config	log	report	syz	C		WARNING: ODEBUG bug in ieee80211_ibss_setup_sdata