syzbot


WARNING in cfg80211_chandef_dfs_required

Status: upstream: reported on 2024/01/16 08:05
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+6939539b3929b3f8d8c3@syzkaller.appspotmail.com
First crash: 94d, last: 50d
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wireless?] WARNING in cfg80211_chandef_dfs_required 0 (1) 2024/01/16 08:05

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 23 at net/wireless/chan.c:623 cfg80211_chandef_dfs_required+0x3fa/0x500 net/wireless/chan.c:623
Modules linked in:
CPU: 1 PID: 23 Comm: kworker/1:0 Not tainted 6.8.0-rc6-syzkaller-00024-ge326df53af00 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
Workqueue: events_power_efficient reg_check_chans_work
RIP: 0010:cfg80211_chandef_dfs_required+0x3fa/0x500 net/wireless/chan.c:623
Code: cb f6 90 0f 0b 90 bd ea ff ff ff e9 27 ff ff ff e8 0b 16 cb f6 e9 1d ff ff ff e8 01 16 cb f6 e9 63 fd ff ff e8 f7 15 cb f6 90 <0f> 0b 90 bd ea ff ff ff e9 00 ff ff ff 44 89 e9 80 e1 07 80 c1 03
RSP: 0018:ffffc900001d79e0 EFLAGS: 00010293
RAX: ffffffff8ac85759 RBX: 0000000000000001 RCX: ffff8880172dd940
RDX: 0000000000000000 RSI: ffffc900001d7b60 RDI: ffffc900001d7b60
RBP: 0000000000000001 R08: ffffffff8ac89492 R09: 1ffffffff1f0ad1d
R10: dffffc0000000000 R11: fffffbfff1f0ad1e R12: ffffc900001d7b60
R13: dffffc0000000000 R14: ffff88808a228700 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000207f8000 CR3: 0000000081caa000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 _cfg80211_reg_can_beacon+0xbe/0xb20 net/wireless/chan.c:1424
 reg_wdev_chan_valid net/wireless/reg.c:2442 [inline]
 reg_leave_invalid_chans net/wireless/reg.c:2469 [inline]
 reg_check_chans_work+0x8bc/0xe50 net/wireless/reg.c:2482
 process_one_work kernel/workqueue.c:2633 [inline]
 process_scheduled_works+0x915/0x1420 kernel/workqueue.c:2706
 worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
 kthread+0x2f1/0x390 kernel/kthread.c:388
 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
 </TASK>

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/29 10:11 upstream e326df53af00 352ab904 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in cfg80211_chandef_dfs_required
2024/01/15 14:38 upstream 052d534373b7 2a7bcc7f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in cfg80211_chandef_dfs_required
2024/01/28 09:06 net 62b424810535 cc4a4020 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in cfg80211_chandef_dfs_required
2024/01/16 07:29 net e327b2372bc0 2a7bcc7f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in cfg80211_chandef_dfs_required
* Struck through repros no longer work on HEAD.