syzbot


WARNING in ieee80211_vif_release_channel

Status: auto-closed as invalid on 2021/12/02 06:30
Reported-by: syzbot+c299bc8bf2c766623e9c@syzkaller.appspotmail.com
First crash: 548d, last: 483d
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING in ieee80211_vif_release_channel 2 543d 545d 0/1 auto-closed as invalid on 2021/10/03 04:56
linux-4.19 WARNING in ieee80211_vif_release_channel (3) C error 3 23d 182d 0/1 upstream: reported C repro on 2022/06/01 03:26
linux-4.19 WARNING in ieee80211_vif_release_channel (2) 1 405d 405d 0/1 auto-closed as invalid on 2022/02/18 14:29
upstream WARNING in ieee80211_vif_release_channel (2) C done 5 342d 345d 22/24 fixed on 2022/03/08 16:11

Sample crash report:
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007fae1833e1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd9195c6af R14: 00007fae1833e300 R15: 0000000000022000
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5166 at net/mac80211/chan.c:1862 ieee80211_vif_release_channel+0x1ad/0x220 net/mac80211/chan.c:1862
Modules linked in:
CPU: 0 PID: 5166 Comm: syz-executor.0 Not tainted 5.13.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:ieee80211_vif_release_channel+0x1ad/0x220 net/mac80211/chan.c:1862
Code: c1 ea 03 80 3c 02 00 0f 85 82 00 00 00 48 8b ab 48 06 00 00 e9 60 ff ff ff e8 9f 1a f4 f8 0f 0b e9 e2 fe ff ff e8 93 1a f4 f8 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02
RSP: 0018:ffffc9000966f050 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88801da18c00 RCX: ffffc900016d1000
RDX: 0000000000040000 RSI: ffffffff8881675d RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: ffffffff8881671c R11: 0000000000000000 R12: ffff88801da19248
R13: 0000000000000001 R14: 00000000fffffff4 R15: 0000000000000000
FS:  00007fae1833e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000052d8f0 CR3: 00000000718ae000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ieee80211_start_ap+0x18ed/0x24e0 net/mac80211/cfg.c:1200
 rdev_start_ap net/wireless/rdev-ops.h:158 [inline]
 nl80211_start_ap+0x1c15/0x2910 net/wireless/nl80211.c:5519
 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:2504
 genl_rcv+0x24/0x40 net/netlink/genetlink.c:811
 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline]
 netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340
 netlink_sendmsg+0x85b/0xda0 net/netlink/af_netlink.c:1929
 sock_sendmsg_nosec net/socket.c:703 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:723
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2392
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2446
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2475
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fae1833e188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007fae1833e1d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd9195c6af R14: 00007fae1833e300 R15: 0000000000022000

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2021/07/06 12:32 net c6c205ed442e 6c4484eb .config log report info WARNING in ieee80211_vif_release_channel
ci-upstream-net-kasan-gce 2021/08/04 06:30 net-next b820c114eba7 6c236867 .config log report info WARNING in ieee80211_vif_release_channel
ci-upstream-net-kasan-gce 2021/05/31 13:21 net-next a729b8e6ec3d 032639db .config log report info WARNING in ieee80211_vif_release_channel
* Struck through repros no longer work on HEAD.