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WARNING in __rate_control_send_low

Status: upstream: reported C repro on 2023/03/17 23:53
Bug presence: origin:upstream
Labels: missing-backport
[Documentation on labels]
Reported-by: syzbot+3b0a4c021dc15719a4c4@syzkaller.appspotmail.com
First crash: 1186d, last: 13h05m
▶ ▼ Bug presence (3)
Date Name Commit Repro Result
2024/06/04 linux-5.15.y (ToT) c61bd26ae81a C [report] WARNING in __rate_control_send_low
2023/06/25 upstream (ToT) a92b7d26c743 C [report] WARNING in __rate_control_send_low
2024/06/04 upstream (ToT) 2ab795141095 C Didn't crash
▶ ▼ 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 362 6h46m 337d 0/2 upstream: reported C repro on 2025/07/13 22:51
linux-4.14 WARNING in __rate_control_send_low -1 C 4 1204d 2077d 0/1 upstream: reported C repro on 2020/10/08 02:03
linux-4.19 WARNING in __rate_control_send_low -1 C 354 1216d 2066d 0/1 upstream: reported C repro on 2020/10/19 12:45
upstream WARNING in __rate_control_send_low (3) prio:low wireless -1 C done 11074 5h11m 598d 0/29 upstream: reported C repro on 2024/10/26 13:25
upstream WARNING in __rate_control_send_low wireless -1 C inconclusive 2759 755d 2071d 25/29 fixed on 2024/05/22 23:08
upstream WARNING in __rate_control_send_low (2) wireless -1 C done 3233 602d 754d 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 1288 5h46m 1176d 0/3 upstream: reported C repro on 2023/03/27 21:44
▶ ▼ Fix bisection attempts (9)
Created Duration User Patch Repo Result
2026/05/07 22:14 15m fix candidate upstream error job log
2026/03/27 07:00 11m fix candidate upstream error job log
2026/02/25 06:33 9m fix candidate upstream error job log
2026/01/26 00:31 0m fix candidate upstream error job log
2025/11/10 14:29 12h28m fix candidate upstream error job log
2025/03/13 11:50 12h05m fix candidate upstream error job log
2025/01/05 04:24 12h44m fix candidate upstream error job log
2024/08/25 02:09 12h04m fix candidate upstream error job log
2024/06/08 15:32 12h04m fix candidate upstream error job log

Sample crash report:
------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 1) in rate_mask 0x0 with flags 0x0
WARNING: CPU: 1 PID: 144 at net/mac80211/rate.c:376 __rate_control_send_low+0x653/0x890 net/mac80211/rate.c:371
Modules linked in:
CPU: 1 PID: 144 Comm: kworker/u4:1 Not tainted 5.15.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: phy4 ieee80211_scan_work
RIP: 0010:__rate_control_send_low+0x653/0x890 net/mac80211/rate.c:371
Code: 84 c0 48 8b 14 24 0f 85 d9 01 00 00 8b 0a 48 c7 c7 20 a0 b8 8b 4c 89 f6 44 89 fa 44 8b 44 24 0c 44 8b 4c 24 08 e8 bd 48 7d f7 <0f> 0b e9 75 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c e3 f9 ff
RSP: 0018:ffffc900013cf408 EFLAGS: 00010246
RAX: dc24e22bf27a5c00 RBX: 0000000000000008 RCX: ffff8880183b3b80
RDX: 0000000000000000 RSI: 0000000080000200 RDI: 0000000000000000
RBP: ffff88802578c8e8 R08: ffffffff8166aa8c R09: fffff52000279dc1
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000008 R14: 0000000000000000 R15: 00000000ffffffff
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f58a318f2f0 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rate_control_send_low+0x1a8/0x770 net/mac80211/rate.c:396
 rate_control_get_rate+0x20a/0x5d0 net/mac80211/rate.c:908
 ieee80211_tx_h_rate_ctrl+0xc6e/0x1990 net/mac80211/tx.c:744
 invoke_tx_handlers_late+0xb2/0x17f0 net/mac80211/tx.c:1826
 ieee80211_tx+0x2df/0x460 net/mac80211/tx.c:1947
 __ieee80211_tx_skb_tid_band+0x164/0x200 net/mac80211/tx.c:5669
 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2204 [inline]
 ieee80211_send_scan_probe_req net/mac80211/scan.c:647 [inline]
 ieee80211_scan_state_send_probe+0x557/0x8f0 net/mac80211/scan.c:675
 ieee80211_scan_work+0x62b/0x1d00 net/mac80211/scan.c:1145
 process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
 worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Crashes (1239):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/02/04 20:42 linux-5.15.y c16c81c81336 8f267cef .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2024/05/01 21:29 linux-5.15.y b925f60c6ee7 3ba885bc .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2024/04/04 04:04 linux-5.15.y 9465fef4ae35 51c4dcff .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2023/11/23 03:20 linux-5.15.y 2a910f4af54d 03e12510 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2023/06/23 10:12 linux-5.15.y f67653019430 79782afc .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2025/06/30 08:22 linux-5.15.y 3dea0e7f549e fc9d8ee5 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2025/06/17 00:00 linux-5.15.y 1c700860e8bc d1716036 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2025/06/16 01:34 linux-5.15.y 1c700860e8bc 5f4b362d .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2025/03/16 22:20 linux-5.15.y 0c935c049b5c e2826670 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2024/11/19 15:42 linux-5.15.y 0a51d2d4527b 571351cb .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2024/09/01 15:17 linux-5.15.y fa93fa65db6e 1eda0d14 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2024/06/24 04:39 linux-5.15.y 4878aadf2d15 edc5149a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2024/04/01 05:01 linux-5.15.y 9465fef4ae35 6baf5069 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2024/02/11 01:45 linux-5.15.y 6139f2a02fe0 77b23aa1 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2026/06/16 06:36 linux-5.15.y dc027a595035 50bb0618 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/14 08:37 linux-5.15.y dc027a595035 1d2f3589 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/14 01:36 linux-5.15.y dc027a595035 1d2f3589 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/13 08:41 linux-5.15.y dc027a595035 1d2f3589 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/11 14:41 linux-5.15.y dc027a595035 d93a6ab6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/11 01:24 linux-5.15.y dc027a595035 b754d2d8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/10 12:49 linux-5.15.y dc027a595035 f79bac11 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/10 00:31 linux-5.15.y dc027a595035 34dab4be .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/07 08:33 linux-5.15.y dc027a595035 cc095639 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/07 08:30 linux-5.15.y dc027a595035 cc095639 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/04 01:58 linux-5.15.y dc027a595035 197909be .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/03 13:12 linux-5.15.y dc027a595035 234057e5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/01 22:01 linux-5.15.y dc027a595035 1095583b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/06/01 19:16 linux-5.15.y dc027a595035 8d8eeb3a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/31 23:52 linux-5.15.y 241d66fa280c 6b4a8443 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/30 18:00 linux-5.15.y 241d66fa280c 6b4a8443 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/30 15:11 linux-5.15.y 241d66fa280c 6b4a8443 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/28 14:54 linux-5.15.y 241d66fa280c 681715f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/28 12:40 linux-5.15.y 241d66fa280c 681715f7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/28 00:14 linux-5.15.y 241d66fa280c 4c36e7e5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/26 21:45 linux-5.15.y 241d66fa280c 2b01f00e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/25 09:58 linux-5.15.y 241d66fa280c c69befb3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/22 14:04 linux-5.15.y 93741761e5e3 5f091fcc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/22 01:10 linux-5.15.y 93741761e5e3 70ae9b03 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/21 03:16 linux-5.15.y 93741761e5e3 41b8c833 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/18 10:39 linux-5.15.y 93741761e5e3 55156e84 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/18 07:54 linux-5.15.y 93741761e5e3 de5aae85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/17 14:51 linux-5.15.y 93741761e5e3 de5aae85 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/16 09:52 linux-5.15.y 93741761e5e3 a15a64a6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/15 09:32 linux-5.15.y de8dfb3f0278 9cd3beaa .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/12 09:18 linux-5.15.y de8dfb3f0278 07aeade5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/11 20:44 linux-5.15.y de8dfb3f0278 d168f260 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/11 08:19 linux-5.15.y de8dfb3f0278 845acb1c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/08 01:44 linux-5.15.y ef251c45f1cd 5633175a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/07 03:51 linux-5.15.y ef251c45f1cd f250db59 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/06 21:59 linux-5.15.y ef251c45f1cd 1dddfd3d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/06 12:42 linux-5.15.y ef251c45f1cd 1dddfd3d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/05 23:06 linux-5.15.y ef251c45f1cd 26da2c66 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/04 09:29 linux-5.15.y ef251c45f1cd 85f1bcf2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/05/02 08:36 linux-5.15.y ef251c45f1cd a0d91488 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/04/30 16:26 linux-5.15.y ef251c45f1cd a7464baf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/04/28 10:05 linux-5.15.y b9d57c40a767 ce741359 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/04/27 22:34 linux-5.15.y b9d57c40a767 ce741359 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/04/27 10:42 linux-5.15.y b9d57c40a767 0f700595 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/04/25 01:56 linux-5.15.y b9d57c40a767 9c2d0995 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
2026/01/21 08:22 linux-5.15.y 9eec9a14ee10 6f1aa2f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-perf WARNING in __rate_control_send_low
2025/08/27 23:48 linux-5.15.y c79648372d02 e12e5ba4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in __rate_control_send_low
2023/03/17 23:53 linux-5.15.y 8020ae3c051d 7939252e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in __rate_control_send_low
* Struck through repros no longer work on HEAD.