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WARNING in __rate_control_send_low (3)

Status: upstream: reported C repro on 2024/10/26 13:25
Subsystems: wireless
[Documentation on labels]
Reported-by: syzbot+34463a129786910405dd@syzkaller.appspotmail.com
First crash: 525d, last: 22h42m
Cause bisection: introduced by (bisect log) :
commit 119aadf816f5373dc82ca4109d6d5b777e00475b
Author: Ramon Fontes <ramonreisfontes@gmail.com>
Date: Fri May 15 16:46:40 2020 +0000

  mac80211_hwsim: report the WIPHY_FLAG_SUPPORTS_5_10_MHZ capability

Crash: WARNING in __rate_control_send_low (log)
Repro: C syz .config
  
▶ ▼ Discussions (17)
Title Replies (including bot) Last reply
[syzbot] Monthly wireless report (Mar 2026) 0 (1) 2026/03/01 06:22
[syzbot] Monthly wireless report (Jan 2026) 0 (1) 2026/01/28 22:39
[syzbot] Monthly wireless report (Dec 2025) 0 (1) 2025/12/29 08:12
[syzbot] Monthly wireless report (Nov 2025) 0 (1) 2025/11/27 07:44
[syzbot] Monthly wireless report (Oct 2025) 0 (1) 2025/10/27 08:42
[syzbot] Monthly wireless report (Sep 2025) 0 (1) 2025/09/25 16:01
[syzbot] Monthly wireless report (Aug 2025) 0 (1) 2025/08/25 13:19
[syzbot] Monthly wireless report (Jul 2025) 0 (1) 2025/07/25 12:39
[syzbot] Monthly wireless report (Jun 2025) 0 (1) 2025/06/24 07:38
[syzbot] Monthly wireless report (May 2025) 0 (1) 2025/05/24 10:04
[syzbot] Monthly wireless report (Apr 2025) 0 (1) 2025/04/22 12:41
[syzbot] Monthly wireless report (Mar 2025) 0 (1) 2025/03/18 14:49
[syzbot] Monthly wireless report (Feb 2025) 0 (1) 2025/02/16 21:53
[syzbot] Monthly wireless report (Jan 2025) 0 (1) 2025/01/15 13:48
[syzbot] Monthly wireless report (Dec 2024) 0 (1) 2024/12/16 09:44
[syzbot] Monthly wireless report (Nov 2024) 0 (1) 2024/11/14 08:58
[syzbot] [wireless?] WARNING in __rate_control_send_low (3) 0 (3) 2024/10/29 20:32
▶ ▼ Similar bugs (7)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 WARNING in __rate_control_send_low origin:lts-only -1 C inconclusive 281 1d09h 260d 0/2 upstream: reported C repro on 2025/07/13 22:51
linux-4.14 WARNING in __rate_control_send_low -1 C 4 1127d 2000d 0/1 upstream: reported C repro on 2020/10/08 02:03
linux-4.19 WARNING in __rate_control_send_low -1 C 354 1139d 1989d 0/1 upstream: reported C repro on 2020/10/19 12:45
linux-5.15 WARNING in __rate_control_send_low missing-backport origin:upstream -1 C error 1149 22h27m 1109d 0/3 upstream: reported C repro on 2023/03/17 23:53
upstream WARNING in __rate_control_send_low wireless -1 C inconclusive 2759 678d 1994d 25/29 fixed on 2024/05/22 23:08
upstream WARNING in __rate_control_send_low (2) wireless -1 C done 3233 525d 677d 28/29 fixed on 2024/10/22 11:57
linux-6.1 WARNING in __rate_control_send_low origin:upstream missing-backport -1 C inconclusive 921 9h55m 1099d 0/3 upstream: reported C repro on 2023/03/27 21:44

Sample crash report:
------------[ cut here ]------------
no supported rates for sta 08:02:11:00:00:00 (0xf, band 0) in rate_mask 0xffffffff with flags 0x10
WARNING: CPU: 1 PID: 146 at net/mac80211/rate.c:403 __rate_control_send_low+0x5df/0x820 net/mac80211/rate.c:398
Modules linked in:
CPU: 1 UID: 0 PID: 146 Comm: kworker/u8:5 Not tainted 6.16.0-rc4-syzkaller-00013-g66701750d556 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__rate_control_send_low+0x5df/0x820 net/mac80211/rate.c:398
Code: 38 0f b6 04 28 84 c0 0f 85 d7 01 00 00 41 8b 0f 48 c7 c7 00 7e ae 8c 48 8b 74 24 18 44 8b 44 24 2c 45 89 e9 e8 72 df a5 f6 90 <0f> 0b 90 90 e9 73 fe ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c
RSP: 0018:ffffc90002e37258 EFLAGS: 00010246
RAX: a9858661d3e14100 RBX: ffff888028738f3c RCX: ffff888021309e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002
RBP: dffffc0000000000 R08: ffffffff8fa104f7 R09: 1ffffffff1f4209e
R10: dffffc0000000000 R11: fffffbfff1f4209f R12: ffff888077a97528
R13: 0000000000000010 R14: ffff888023e30e40 R15: ffff888023e330d8
FS:  0000000000000000(0000) GS:ffff888125d50000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555557258808 CR3: 000000000df38000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 rate_control_send_low+0xf2/0x7a0 net/mac80211/rate.c:423
 rate_control_get_rate+0x20b/0x5d0 net/mac80211/rate.c:934
 ieee80211_tx_h_rate_ctrl+0xb32/0x1780 net/mac80211/tx.c:753
 invoke_tx_handlers_late+0xb6/0x1820 net/mac80211/tx.c:1833
 ieee80211_tx+0x2ac/0x420 net/mac80211/tx.c:1954
 __ieee80211_tx_skb_tid_band+0x50f/0x680 net/mac80211/tx.c:6103
 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2350 [inline]
 ieee80211_send_scan_probe_req net/mac80211/scan.c:670 [inline]
 ieee80211_scan_state_send_probe+0x59a/0xa10 net/mac80211/scan.c:698
 ieee80211_scan_work+0x5b1/0x1ce0 net/mac80211/scan.c:1158
 cfg80211_wiphy_work+0x2df/0x460 net/wireless/core.c:435
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xae1/0x17b0 kernel/workqueue.c:3321
 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402
 kthread+0x711/0x8a0 kernel/kthread.c:464
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

Crashes (10607):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/07/02 08:06 upstream 66701750d556 ffe4b334 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __rate_control_send_low
2025/02/02 20:54 upstream 69e858e0b8b2 568559e4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in __rate_control_send_low
2025/01/12 02:28 upstream b62cef9a5c67 6dbc6a9b .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in __rate_control_send_low
2026/01/31 00:08 upstream 4d310797262f c75a2f6e .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2025/03/13 10:34 upstream b7f94fcf5546 44be8b44 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in __rate_control_send_low
2025/03/05 22:10 upstream bb2281fb05e5 034534df .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2025/02/19 15:36 upstream 6537cfb395f3 cbd8edab .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in __rate_control_send_low
2025/02/16 06:48 upstream ad1b832bf1cf 40a34ec9 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in __rate_control_send_low
2025/01/21 05:44 upstream 3d3a9c8b89d4 6e87cfa2 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2024/11/14 18:11 upstream 0a9b9d17f3a7 77f3eeb7 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in __rate_control_send_low
2024/11/14 17:33 upstream 0a9b9d17f3a7 77f3eeb7 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in __rate_control_send_low
2024/12/25 22:23 net b3a69c559899 444551c4 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2024/10/29 03:17 net b5abbf612092 9efb3cc7 .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/30 21:53 upstream 7aaa8047eafd 458630d8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __rate_control_send_low
2026/03/29 03:54 upstream be762d8b6dd7 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in __rate_control_send_low
2026/03/23 11:49 upstream c369299895a5 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in __rate_control_send_low
2026/03/14 04:29 upstream 1c9982b49613 ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __rate_control_send_low
2026/03/13 15:16 upstream 0257f64bdac7 351cb5cf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __rate_control_send_low
2026/03/11 18:16 upstream b29fb8829bff 2d88ab01 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce WARNING in __rate_control_send_low
2026/03/09 13:50 upstream 1f318b96cc84 176bead5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __rate_control_send_low
2026/03/08 11:41 upstream c23719abc330 5cb44a80 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root WARNING in __rate_control_send_low
2026/03/01 12:24 upstream eb71ab2bf722 43249bac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in __rate_control_send_low
2026/02/11 03:29 upstream dc855b77719f 441e25b7 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in __rate_control_send_low
2026/01/30 04:32 upstream 4d310797262f bfa73b7b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in __rate_control_send_low
2024/10/25 22:05 upstream b423f5a9a61f 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in __rate_control_send_low
2026/03/29 21:52 upstream ac354b5cb04d 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in __rate_control_send_low
2026/03/17 09:42 upstream 2d1373e4246d c01bca74 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in __rate_control_send_low
2026/02/22 19:53 upstream 32a92f8c8932 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in __rate_control_send_low
2026/03/23 08:23 upstream c369299895a5 5b92003d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2026/03/22 14:16 upstream 113ae7b4decc 5b92003d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2026/03/18 02:32 upstream f0caa1d49cc0 c8810548 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2026/03/16 21:46 upstream 2d1373e4246d 0737c18f .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2026/03/16 08:00 upstream f338e7738378 64e21424 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2026/03/14 11:23 upstream 1c9982b49613 ee8d34d6 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in __rate_control_send_low
2025/11/06 06:00 upstream dc77806cf3b4 a6c9c731 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in __rate_control_send_low
2026/03/16 18:20 upstream f338e7738378 64e21424 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 WARNING in __rate_control_send_low
2026/03/29 15:21 net dc9e9d61e301 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/28 22:47 net dc9e9d61e301 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/27 09:00 net 45dbf8fcea4d 50cdcaa1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/27 01:28 net 84a8335d8300 fca8d360 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/25 09:25 net 51a209ee3342 35e4ff71 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/23 23:27 net bc0151c59e63 5e3db351 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/20 08:54 net 7c770dadfda5 2f245add .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/19 03:30 net 55dc632ab2ac 0199f9a1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/17 11:02 net 66360460cab6 c01bca74 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/16 11:48 net 43d222fbcdff 64e21424 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/15 18:09 net 43d222fbcdff ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/15 00:08 net 74c1e2737bd5 ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/14 21:04 net 74c1e2737bd5 ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/14 18:16 net 74c1e2737bd5 ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/14 15:22 net 99600f79b28c ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/14 07:32 net 99600f79b28c ee8d34d6 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/05 09:51 net 126fe7ef12ff a9fe5c9e .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/04 17:32 net fbdfa8da05b6 e6b6b96b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2024/10/22 13:17 net d95d9a31aceb a93682b3 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-this-kasan-gce WARNING in __rate_control_send_low
2026/03/25 19:17 net-next d1e59a469737 4367a094 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/03/24 14:48 net-next a4b908c89d88 74e70d19 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/03/17 01:12 net-next 5446b8691eb8 0737c18f .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/03/12 09:45 net-next 17edc4e820bf 2d88ab01 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/03/12 05:27 net-next 17edc4e820bf 2d88ab01 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/03/06 23:51 net-next e5e09233e8a9 41d8037d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/03/04 12:29 net-next 4ad96a7c9e2c e6b6b96b .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/02/28 16:42 net-next 1e08faf996c3 43249bac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/02/27 10:06 net-next 5cf47393d96f a2f13f71 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/02/23 03:16 net-next 8bf22c33e7a1 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-net-kasan-gce WARNING in __rate_control_send_low
2026/03/29 18:03 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in __rate_control_send_low
2026/03/28 03:06 linux-next 3b058d1aeeef 356bdfc9 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in __rate_control_send_low
2026/03/24 13:20 linux-next 09c0f7f1bcdb 74e70d19 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in __rate_control_send_low
2026/03/21 22:19 linux-next 785f0eb2f85d 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in __rate_control_send_low
2026/03/18 19:28 linux-next 8e42d2514a7e 0199f9a1 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-linux-next-kasan-gce-root WARNING in __rate_control_send_low
2026/03/06 09:56 linux-next 3f9cd19e764b 31e9c887 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in __rate_control_send_low
2026/02/23 23:31 linux-next d4906ae14a5f 41d2fa6a .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in __rate_control_send_low
2026/02/23 11:12 linux-next d4906ae14a5f 305c0ec5 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in __rate_control_send_low
2026/02/22 15:24 linux-next d4906ae14a5f 6e7b5511 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in __rate_control_send_low
2026/02/04 04:50 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 59e4d31a0470 42b01fab .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in __rate_control_send_low
* Struck through repros no longer work on HEAD.