syzbot


WARNING in ieee80211_tx_h_rate_ctrl

Status: upstream: reported on 2025/05/29 12:33
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+0d516b33238bd97ee864@syzkaller.appspotmail.com
First crash: 235d, last: 20m
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [wireless?] WARNING in ieee80211_tx_h_rate_ctrl 0 (1) 2025/05/29 12:33
Similar bugs (2)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 WARNING in ieee80211_tx_h_rate_ctrl -1 5 1d15h 68d 0/2 upstream: reported on 2025/11/07 15:30
linux-6.1 WARNING in ieee80211_tx_h_rate_ctrl -1 2 27d 41d 0/3 upstream: reported on 2025/12/04 23:51

Sample crash report:
------------[ cut here ]------------
wlan1: Dropped data frame as no usable bitrate found while scanning and associated. Target station: 08:02:11:00:00:00 on 5 GHz band
WARNING: net/mac80211/tx.c:758 at ieee80211_tx_h_rate_ctrl+0xbe9/0x1760 net/mac80211/tx.c:751, CPU#0: kworker/u8:2/43
Modules linked in:
CPU: 0 UID: 0 PID: 43 Comm: kworker/u8:2 Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:ieee80211_tx_h_rate_ctrl+0xc56/0x1760 net/mac80211/tx.c:751
Code: 00 00 48 8b 44 24 50 8b 30 45 31 ff 83 e6 07 41 0f 95 c7 31 ff e8 6a 32 70 f7 43 8d 0c 7f 83 c1 02 48 89 df 4c 89 f6 4c 89 e2 <67> 48 0f b9 3a 41 be 01 00 00 00 49 bf 00 00 00 00 00 fc ff df e9
RSP: 0018:ffffc90000b57380 EFLAGS: 00010206
RAX: ffffffff8a4f7f66 RBX: ffffffff8eeaf580 RCX: 0000000000000005
RDX: ffff88802a7dea84 RSI: ffff88803c63d9c8 RDI: ffffffff8eeaf580
RBP: ffffc90000b574e8 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed101475865f R12: ffff88802a7dea84
R13: 1ffff9200016ae84 R14: ffff88803c63d9c8 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff888126cee000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3101dff8 CR3: 0000000083110000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 invoke_tx_handlers_late+0xbd/0x18b0 net/mac80211/tx.c:1849
 ieee80211_tx+0x2ac/0x460 net/mac80211/tx.c:1971
 __ieee80211_tx_skb_tid_band+0x50f/0x680 net/mac80211/tx.c:6288
 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2407 [inline]
 ieee80211_send_scan_probe_req net/mac80211/scan.c:680 [inline]
 ieee80211_scan_state_send_probe+0x594/0xa00 net/mac80211/scan.c:708
 ieee80211_scan_work+0x65f/0x1c50 net/mac80211/scan.c:1169
 cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438
 process_one_work kernel/workqueue.c:3257 [inline]
 process_scheduled_works+0xad1/0x1770 kernel/workqueue.c:3340
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3421
 kthread+0x711/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 00                	add    %al,(%rax)
   2:	48 8b 44 24 50       	mov    0x50(%rsp),%rax
   7:	8b 30                	mov    (%rax),%esi
   9:	45 31 ff             	xor    %r15d,%r15d
   c:	83 e6 07             	and    $0x7,%esi
   f:	41 0f 95 c7          	setne  %r15b
  13:	31 ff                	xor    %edi,%edi
  15:	e8 6a 32 70 f7       	call   0xf7703284
  1a:	43 8d 0c 7f          	lea    (%r15,%r15,2),%ecx
  1e:	83 c1 02             	add    $0x2,%ecx
  21:	48 89 df             	mov    %rbx,%rdi
  24:	4c 89 f6             	mov    %r14,%rsi
  27:	4c 89 e2             	mov    %r12,%rdx
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	41 be 01 00 00 00    	mov    $0x1,%r14d
  35:	49 bf 00 00 00 00 00 	movabs $0xdffffc0000000000,%r15
  3c:	fc ff df
  3f:	e9                   	.byte 0xe9

Crashes (592):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/01/15 02:15 upstream 944aacb68baf d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 23:24 upstream 944aacb68baf d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 14:53 upstream c537e12daeec d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_tx_h_rate_ctrl
2026/01/12 21:42 upstream b71e635feefc d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in ieee80211_tx_h_rate_ctrl
2026/01/11 23:28 upstream 755bc1335e3b d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in ieee80211_tx_h_rate_ctrl
2025/11/23 01:01 upstream 89edd36fd801 4fb8ef37 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 16:03 upstream c537e12daeec d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 13:49 upstream c537e12daeec d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 11:37 upstream c537e12daeec d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 08:28 upstream c537e12daeec d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 01:55 upstream b54345928fa1 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 00:50 upstream b54345928fa1 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 23:48 upstream b54345928fa1 d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 07:18 upstream 944aacb68baf d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 05:23 upstream 944aacb68baf d1b870e1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 14:48 net 4156c3745f06 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 13:42 net 4156c3745f06 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 12:33 net 4156c3745f06 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 11:24 net 4156c3745f06 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 09:29 net 3879cffd9d07 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 21:46 net 3879cffd9d07 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 19:08 net 3879cffd9d07 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 18:07 net 3879cffd9d07 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 17:00 net 3879cffd9d07 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 13:05 net 3879cffd9d07 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 10:06 net ffe4ccd359d0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 09:01 net ffe4ccd359d0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 07:27 net ffe4ccd359d0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 06:20 net ffe4ccd359d0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 05:09 net ffe4ccd359d0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 04:05 net ffe4ccd359d0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 02:56 net ffe4ccd359d0 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 21:28 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 19:57 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 18:49 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 16:37 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 15:14 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 14:02 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 12:00 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 10:38 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 09:56 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 08:49 net dfdf77465620 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/12 12:49 net 16ce6e6fa946 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2025/05/26 14:57 net 5cdb2c77c4c3 2d4582d0 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2025/05/25 12:26 net 5cdb2c77c4c3 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2025/05/25 12:25 net 5cdb2c77c4c3 ed351ea7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 10:23 net-next cc75d43783f7 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 06:32 net-next 3b194343c250 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 04:14 net-next 3b194343c250 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/15 00:27 net-next 3b194343c250 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 20:45 net-next 3b194343c250 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/14 20:13 net-next 3b194343c250 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
2026/01/13 22:41 linux-next 0f853ca2a798 d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in ieee80211_tx_h_rate_ctrl
* Struck through repros no longer work on HEAD.