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WARNING in __rate_control_send_low

Status: upstream: reported C repro on 2025/07/13 22:51
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+76cb5fc272f0dc09dd32@syzkaller.appspotmail.com
First crash: 276d, last: 30m
▶ ▼ Bug presence (2)
Date Name Commit Repro Result
2025/07/19 linux-6.6.y (ToT) d96eb99e2f0e C [report] WARNING in __rate_control_send_low
2025/07/19 upstream (ToT) 4871b7cb27f4 C Didn't crash
▶ ▼ Similar bugs (7)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING in __rate_control_send_low -1 C 4 1143d 2016d 0/1 upstream: reported C repro on 2020/10/08 02:03
linux-4.19 WARNING in __rate_control_send_low -1 C 354 1155d 2005d 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 1160 17h03m 1125d 0/3 upstream: reported C repro on 2023/03/17 23:53
upstream WARNING in __rate_control_send_low (3) wireless -1 C done 10632 10h36m 537d 0/29 upstream: reported C repro on 2024/10/26 13:25
upstream WARNING in __rate_control_send_low wireless -1 C inconclusive 2759 693d 2010d 25/29 fixed on 2024/05/22 23:08
upstream WARNING in __rate_control_send_low (2) wireless -1 C done 3233 541d 693d 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 950 22h53m 1115d 0/3 upstream: reported C repro on 2023/03/27 21:44
▶ ▼ Fix bisection attempts (1)
Created Duration User Patch Repo Result
2025/09/23 17:57 1h23m fix candidate upstream OK (0) job log

Sample crash report:
------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0xfff with flags 0x40
WARNING: CPU: 1 PID: 22 at net/mac80211/rate.c:385 __rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380
Modules linked in:
CPU: 1 PID: 22 Comm: ksoftirqd/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__rate_control_send_low+0x635/0x880 net/mac80211/rate.c:380
Code: 30 42 0f b6 04 28 84 c0 0f 85 e6 01 00 00 41 8b 0e 48 c7 c7 80 ae be 8b 48 8b 74 24 10 44 8b 44 24 1c 45 89 e1 e8 ab 02 69 f7 <0f> 0b e9 78 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 03 fa ff
RSP: 0018:ffffc900001c73c0 EFLAGS: 00010246
RAX: cf3afcf8ddf62600 RBX: 000000000000000c RCX: ffff88801ba6bc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000002
RBP: 0000000000000084 R08: ffffc900001c6fc7 R09: 1ffff92000038df8
R10: dffffc0000000000 R11: fffff52000038df9 R12: 0000000000000040
R13: dffffc0000000000 R14: ffff88802837b358 R15: ffff8880192f0668
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f85f53e6088 CR3: 000000002e11e000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 rate_control_send_low+0x194/0x790 net/mac80211/rate.c:405
 rate_control_get_rate+0x20b/0x5c0 net/mac80211/rate.c:921
 ieee80211_beacon_get_finish+0x38d/0x6b0 net/mac80211/tx.c:5228
 ieee80211_beacon_get_ap+0x1429/0x1970 net/mac80211/tx.c:5331
 __ieee80211_beacon_get+0x10eb/0x1600 net/mac80211/tx.c:5427
 ieee80211_beacon_get_tim+0xb8/0x560 net/mac80211/tx.c:5569
 ieee80211_beacon_get include/net/mac80211.h:5440 [inline]
 mac80211_hwsim_beacon_tx+0x3c7/0x780 drivers/net/wireless/virtual/mac80211_hwsim.c:2265
 __iterate_interfaces+0x243/0x500 net/mac80211/util.c:766
 ieee80211_iterate_active_interfaces_atomic+0xdb/0x180 net/mac80211/util.c:802
 mac80211_hwsim_beacon+0xbb/0x1b0 drivers/net/wireless/virtual/mac80211_hwsim.c:2295
 __run_hrtimer kernel/time/hrtimer.c:1750 [inline]
 __hrtimer_run_queues+0x51e/0xc40 kernel/time/hrtimer.c:1814
 hrtimer_run_softirq+0x187/0x2b0 kernel/time/hrtimer.c:1831
 handle_softirqs+0x280/0x820 kernel/softirq.c:578
 run_ksoftirqd+0x9c/0xf0 kernel/softirq.c:950
 smpboot_thread_fn+0x635/0xa00 kernel/smpboot.c:164
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>

Crashes (296):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/12/04 17:33 linux-6.6.y 4791134e4aeb d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/10/24 05:38 linux-6.6.y 4a243110dc88 c0460fcd .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/07/14 04:41 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/07/14 03:52 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/07/14 03:02 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/07/14 02:13 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/07/14 01:20 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/07/14 00:27 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/16 17:19 linux-6.6.y 8cee53b8eaeb 4743f87d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/16 13:39 linux-6.6.y 8cee53b8eaeb 4743f87d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/08 15:57 linux-6.6.y 80de0a958133 d9b7f621 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/08 02:07 linux-6.6.y 80de0a958133 2c961e87 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/06 11:54 linux-6.6.y 80de0a958133 4440e7c2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/02 19:52 linux-6.6.y c09fbcd31ae6 91bc79b0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/02 09:14 linux-6.6.y c09fbcd31ae6 0cb124d5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/04/01 11:53 linux-6.6.y c09fbcd31ae6 9a1f7828 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/30 10:57 linux-6.6.y c09fbcd31ae6 dcaebc52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/30 10:57 linux-6.6.y c09fbcd31ae6 dcaebc52 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/28 15:04 linux-6.6.y c09fbcd31ae6 b5ceaad2 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/26 13:13 linux-6.6.y c09fbcd31ae6 766b6434 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/23 06:22 linux-6.6.y 4fc00fe35d46 5b92003d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/20 17:25 linux-6.6.y 4fc00fe35d46 ac6f1dff .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/18 13:28 linux-6.6.y 4fc00fe35d46 0199f9a1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/12 12:51 linux-6.6.y 4fc00fe35d46 4efadf07 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/11 19:30 linux-6.6.y 4fc00fe35d46 2d88ab01 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/04 16:28 linux-6.6.y 682d8e2f892b e6b6b96b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/03/04 13:50 linux-6.6.y 7a137e9bfa0e e6b6b96b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/28 04:48 linux-6.6.y 7a137e9bfa0e 43249bac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/26 13:20 linux-6.6.y 7a137e9bfa0e ffa54287 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/26 01:16 linux-6.6.y 7a137e9bfa0e e0f78d93 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/25 00:17 linux-6.6.y 7a137e9bfa0e 787dfb7c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/23 12:01 linux-6.6.y 7a137e9bfa0e 6beca497 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/20 08:02 linux-6.6.y 7a137e9bfa0e 17d780d6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/20 05:55 linux-6.6.y 7a137e9bfa0e c8d8c52d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/19 22:27 linux-6.6.y 7a137e9bfa0e c8d8c52d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/19 22:27 linux-6.6.y 7a137e9bfa0e c8d8c52d .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/19 10:56 linux-6.6.y 56865d9b7074 746545b8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/19 09:55 linux-6.6.y 56865d9b7074 746545b8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/17 17:05 linux-6.6.y 56865d9b7074 06ec4f7b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/17 06:15 linux-6.6.y 56865d9b7074 e439b951 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/13 18:59 linux-6.6.y 1b4ef5214f17 1e62d198 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/12 23:44 linux-6.6.y 1b4ef5214f17 504cb1bf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/12 23:41 linux-6.6.y 1b4ef5214f17 504cb1bf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/12 17:24 linux-6.6.y 1b4ef5214f17 504cb1bf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/11 01:27 linux-6.6.y c56aaf1a85ae 441e25b7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/09 04:49 linux-6.6.y c56aaf1a85ae 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/08 22:31 linux-6.6.y c56aaf1a85ae 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/07 19:46 linux-6.6.y c56aaf1a85ae 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/07 19:39 linux-6.6.y c56aaf1a85ae 4c131dc4 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/07 02:02 linux-6.6.y c56aaf1a85ae f20fc9f9 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/02/05 11:51 linux-6.6.y 2cf6f68313dc 4936e85c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2026/01/29 13:55 linux-6.6.y cbb31f77b879 aeb6fdd5 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
2025/07/13 22:50 linux-6.6.y 59a2de10b81a 3cda49cf .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-6-kasan WARNING in __rate_control_send_low
* Struck through repros no longer work on HEAD.