syzbot


WARNING in ieee80211_link_release_channel

Status: auto-obsoleted due to no activity on 2024/01/21 00:13
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+9817a610349542589c42@syzkaller.appspotmail.com
First crash: 178d, last: 134d
Cause bisection: introduced by (bisect log) :
commit c2368b19807affd7621f7c4638cd2e17fec13021
Author: Jiri Pirko <jiri@nvidia.com>
Date: Fri Jul 29 07:10:35 2022 +0000

  net: devlink: introduce "unregistering" mark and use it during devlinks iteration

Crash: INFO: rcu detected stall in corrupted (log)
Repro: syz .config
  
Fix bisection: fixed by (bisect log) :
commit 88717def36f7b19f12d6ad6644e73bf91cf86375
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed Sep 13 11:56:51 2023 +0000

  wifi: iwlwifi: mvm: add a debug print when we get a BAR

  
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wireless?] WARNING in ieee80211_link_release_channel 1 (4) 2023/12/03 17:12
Last patch testing requests (1)
Created Duration User Patch Repo Result
2023/09/14 06:31 19m retest repro upstream OK log
Cause bisection attempts (2)
Created Duration User Patch Repo Result
2023/11/06 22:42 9h41m bisect upstream job log (1) log
2023/10/22 22:09 5h03m bisect upstream error job log (0)

Sample crash report:
RBP: 00007f64c7d70120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000006e R14: 00007f64c719c050 R15: 00007f64c72bfa48
 </TASK>
wlan1: failed to insert STA entry for the AP (error -12)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7597 at net/mac80211/chan.c:2021 ieee80211_link_release_channel+0x19f/0x200 net/mac80211/chan.c:2021
Modules linked in:
CPU: 0 PID: 7597 Comm: syz-executor.5 Not tainted 6.5.0-syzkaller-04592-gd68b4b6f307d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:ieee80211_link_release_channel+0x19f/0x200 net/mac80211/chan.c:2021
Code: ff ff ff ff 48 8d b8 f0 1c 00 00 e8 3b 33 79 00 31 ff 41 89 c5 89 c6 e8 cf 7e c7 f7 45 85 ed 0f 85 6d ff ff ff e8 51 83 c7 f7 <0f> 0b e9 61 ff ff ff 48 c7 c7 d0 28 ad 8e e8 6e 2f 1d f8 e9 3a ff
RSP: 0018:ffffc9000a0d6b08 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88806730e3a8 RCX: 0000000000000000
RDX: ffff8880271ebb80 RSI: ffffffff89c00a5f RDI: 0000000000000005
RBP: ffff88806730cc80 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88806730d580
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007f64c7d706c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5579f1bff8 CR3: 0000000075757000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ieee80211_prep_connection+0x62a/0x14f0 net/mac80211/mlme.c:7065
 ieee80211_mgd_auth+0xa1a/0x1490 net/mac80211/mlme.c:7205
 rdev_auth net/wireless/rdev-ops.h:481 [inline]
 cfg80211_mlme_auth+0x551/0x910 net/wireless/mlme.c:289
 cfg80211_conn_do_work+0x64e/0xfe0 net/wireless/sme.c:181
 cfg80211_sme_connect net/wireless/sme.c:638 [inline]
 cfg80211_connect+0xf07/0x20c0 net/wireless/sme.c:1528
 nl80211_connect+0x13ef/0x1d50 net/wireless/nl80211.c:12018
 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:728 [inline]
 sock_sendmsg+0xd9/0x180 net/socket.c:751
 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2538
 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2592
 __sys_sendmsg+0x117/0x1e0 net/socket.c:2621
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f64c707cae9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f64c7d700c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f64c719c050 RCX: 00007f64c707cae9
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003
RBP: 00007f64c7d70120 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 000000000000006e R14: 00007f64c719c050 R15: 00007f64c72bfa48
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/08/30 04:32 upstream d68b4b6f307d b42ca3a7 .config console log report syz [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_link_release_channel
2023/10/13 00:12 upstream e8c127b05766 6388bc36 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_link_release_channel
2023/08/30 01:39 upstream d68b4b6f307d b42ca3a7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in ieee80211_link_release_channel
* Struck through repros no longer work on HEAD.