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WARNING in __rate_control_send_low (2)

syzbot syzbot 2 participants 5 messages May 23, 2024 – Jul 26, 2024

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author syzbot
#0 lore raw

Hello,

syzbot found the following issue on:

HEAD commit:    4b377b4868ef kprobe/ftrace: fix build error due to bad fun..
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=12f96934980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=17ffd15f654c98ba
dashboard link: https://syzkaller.appspot.com/bug?extid=8dd98a9e98ee28dc484a
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/6f4c61bc9252/disk-4b377b48.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/841f1b24d3a1/vmlinux-4b377b48.xz
kernel image: https://storage.googleapis.com/syzbot-assets/017b655dca3d/bzImage-4b377b48.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by [email protected]
------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: CPU: 0 PID: 8812 at net/mac80211/rate.c:385 __rate_control_send_low+0x659/0x890 net/mac80211/rate.c:380
Modules linked in:
CPU: 0 PID: 8812 Comm: kworker/u8:20 Not tainted 6.9.0-syzkaller-08544-g4b377b4868ef #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__rate_control_send_low+0x659/0x890 net/mac80211/rate.c:380
Code: 8b 14 24 0f 85 de 01 00 00 8b 0a 48 c7 c7 80 69 e1 8c 48 8b 74 24 10 44 89 f2 44 8b 44 24 1c 44 8b 4c 24 0c e8 08 9b 5e f6 90 <0f> 0b 90 90 e9 71 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c db
RSP: 0018:ffffc90005d074a0 EFLAGS: 00010246
RAX: d769b2aeaeba2800 RBX: 000000000000000c RCX: ffff88802e348000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88807ec45168 R08: ffffffff81585642 R09: fffffbfff1c3995c
R10: dffffc0000000000 R11: fffffbfff1c3995c R12: 0000000000000800
R13: 000000000000000c R14: 00000000ffffffff R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f61c4d3cd58 CR3: 000000004aca6000 CR4: 00000000003506f0
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:405
 rate_control_get_rate+0x20e/0x5e0 net/mac80211/rate.c:921
 ieee80211_tx_h_rate_ctrl+0xc88/0x1a10 net/mac80211/tx.c:763
 invoke_tx_handlers_late+0xb3/0x18e0 net/mac80211/tx.c:1848
 ieee80211_tx+0x2e3/0x470 net/mac80211/tx.c:1969
 __ieee80211_tx_skb_tid_band+0x4e2/0x620 net/mac80211/tx.c:6103
 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2266 [inline]
 ieee80211_handle_roc_started+0x267/0x440 net/mac80211/offchannel.c:248
 _ieee80211_start_next_roc+0x7a1/0xb00 net/mac80211/offchannel.c:381
 cfg80211_wiphy_work+0x221/0x260 net/wireless/core.c:437
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd70 kernel/workqueue.c:3393
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

---
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author syzbot
#1 lore raw
syzbot has found a reproducer for the following issue on:

syzbot has found a reproducer for the following issue on:

HEAD commit:    66ad4829ddd0 Merge tag 'net-6.10-rc1' of git://git.kernel...
git tree:       net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=16624572980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=48c05addbb27f3b0
dashboard link: https://syzkaller.appspot.com/bug?extid=8dd98a9e98ee28dc484a
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14f181c8980000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/05c6f2231ef8/disk-66ad4829.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/5f4fc63b22e3/vmlinux-66ad4829.xz
kernel image: https://storage.googleapis.com/syzbot-assets/67f5c4c88729/bzImage-66ad4829.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by [email protected]

netlink: 8 bytes leftover after parsing attributes in process `syz-executor.2'.

------------[ cut here ]------------
no supported rates for sta 08:02:11:00:00:01 (0xf, band 0) in rate_mask 0xfff with flags 0x10
WARNING: CPU: 1 PID: 5269 at net/mac80211/rate.c:385 __rate_control_send_low+0x659/0x890 net/mac80211/rate.c:380
Modules linked in:
CPU: 1 PID: 5269 Comm: syz-executor.2 Not tainted 6.9.0-syzkaller-12071-g66ad4829ddd0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024
RIP: 0010:__rate_control_send_low+0x659/0x890 net/mac80211/rate.c:380
Code: 8b 14 24 0f 85 de 01 00 00 8b 0a 48 c7 c7 20 90 e1 8c 48 8b 74 24 10 44 89 f2 44 8b 44 24 1c 44 8b 4c 24 0c e8 b8 9e 60 f6 90 <0f> 0b 90 90 e9 71 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c db
RSP: 0018:ffffc9000334eb00 EFLAGS: 00010246
RAX: 50bad2e5ba5ebe00 RBX: ffff88807bf10f44 RCX: ffff88807c4e1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88802cd2f2a8 R08: ffffffff815847a2 R09: fffffbfff1c3996c
R10: dffffc0000000000 R11: fffffbfff1c3996c R12: 0000000000000000
R13: 000000000000000c R14: 000000000000000f R15: dffffc0000000000
FS:  00007f8c6eddf6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8c6edddf78 CR3: 000000007ce9e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rate_control_send_low+0xf9/0x770 net/mac80211/rate.c:405
 rate_control_get_rate+0x20e/0x5e0 net/mac80211/rate.c:921
 ieee80211_tx_h_rate_ctrl+0xc88/0x1a10 net/mac80211/tx.c:763
 invoke_tx_handlers_late+0xb3/0x18e0 net/mac80211/tx.c:1848
 ieee80211_tx+0x2e3/0x470 net/mac80211/tx.c:1969
 __ieee80211_tx_skb_tid_band+0x4e2/0x610 net/mac80211/tx.c:6103
 ieee80211_tx_skb_tid+0x264/0x420 net/mac80211/tx.c:6131
 ieee80211_mgmt_tx+0x1b46/0x2170 net/mac80211/offchannel.c:989
 rdev_mgmt_tx net/wireless/rdev-ops.h:758 [inline]
 cfg80211_mlme_mgmt_tx+0x950/0x16a0 net/wireless/mlme.c:937
 nl80211_tx_mgmt+0xb0d/0x1190 net/wireless/nl80211.c:12651
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2564
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1335 [inline]
 netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1361
 netlink_sendmsg+0x8db/0xcb0 net/netlink/af_netlink.c:1905
 sock_sendmsg_nosec net/socket.c:730 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:745
 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585
 ___sys_sendmsg net/socket.c:2639 [inline]
 __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2668
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8c6e07cee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8c6eddf0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8c6e1abf80 RCX: 00007f8c6e07cee9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000004
RBP: 00007f8c6e0c949e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f8c6e1abf80 R15: 00007ffccd0b27a8
 </TASK>

---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

author syzbot
#2 lore raw
In reply to syzbot
syzbot has found a reproducer for the following issue on:

syzbot has found a reproducer for the following issue on:

HEAD commit:    51835949dda3 Merge tag 'net-next-6.11' of git://git.kernel..
git tree:       net-next
console+strace: https://syzkaller.appspot.com/x/log.txt?x=17a2f61d980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d3bdd09ea2371c89
dashboard link: https://syzkaller.appspot.com/bug?extid=8dd98a9e98ee28dc484a
compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14608749980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=178b9195980000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/9690deac1819/disk-51835949.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/54d261dbb3f0/vmlinux-51835949.xz
kernel image: https://storage.googleapis.com/syzbot-assets/e61465cd524f/bzImage-51835949.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:

Reported-by [email protected]
------------[ cut here ]------------
no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0
WARNING: CPU: 0 PID: 956 at net/mac80211/rate.c:385 __rate_control_send_low+0x659/0x890 net/mac80211/rate.c:380
Modules linked in:
CPU: 0 PID: 956 Comm: kworker/u8:6 Not tainted 6.10.0-syzkaller-04472-g51835949dda3 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:__rate_control_send_low+0x659/0x890 net/mac80211/rate.c:380
Code: 8b 14 24 0f 85 de 01 00 00 8b 0a 48 c7 c7 60 91 e2 8c 48 8b 74 24 10 44 89 f2 44 8b 44 24 1c 44 8b 4c 24 0c e8 98 47 5b f6 90 <0f> 0b 90 90 e9 71 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c db
RSP: 0018:ffffc9000438f4c0 EFLAGS: 00010246
RAX: 2943e4de4f1a2b00 RBX: 000000000000000c RCX: ffff8880210a1e00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff88801f2367a8 R08: ffffffff815878a2 R09: fffffbfff1c39d94
R10: dffffc0000000000 R11: fffffbfff1c39d94 R12: 0000000000000800
R13: 000000000000000c R14: 00000000ffffffff R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000066a010 CR3: 000000007f050000 CR4: 00000000003506f0
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:405
 rate_control_get_rate+0x20e/0x5e0 net/mac80211/rate.c:921
 ieee80211_tx_h_rate_ctrl+0xc88/0x1a10 net/mac80211/tx.c:763
 invoke_tx_handlers_late+0xb3/0x18e0 net/mac80211/tx.c:1848
 ieee80211_tx+0x2e3/0x470 net/mac80211/tx.c:1969
 __ieee80211_tx_skb_tid_band+0x4e2/0x610 net/mac80211/tx.c:6101
 ieee80211_tx_skb_tid_band net/mac80211/ieee80211_i.h:2297 [inline]
 ieee80211_handle_roc_started+0x267/0x440 net/mac80211/offchannel.c:248
 _ieee80211_start_next_roc+0x7a1/0xb00 net/mac80211/offchannel.c:381
 cfg80211_wiphy_work+0x2db/0x490 net/wireless/core.c:440
 process_one_work kernel/workqueue.c:3231 [inline]
 process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

---
If you want syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.

author syzbot
#3 lore raw
In reply to syzbot
syzbot has bisected this issue to:

syzbot has bisected this issue to:

commit 9df66d5b9f45c39b3925d16e8947cc10009b186d

Author: Ping-Ke Shih <[email protected]>
Date:   Wed Jun 9 07:59:44 2021 +0000

cfg80211: fix default HE tx bitrate mask in 2G band

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13e233fd980000
start commit:   51835949dda3 Merge tag 'net-next-6.11' of git://git.kernel..
git tree:       net-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=101233fd980000
console output: https://syzkaller.appspot.com/x/log.txt?x=17e233fd980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d3bdd09ea2371c89
dashboard link: https://syzkaller.appspot.com/bug?extid=8dd98a9e98ee28dc484a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14608749980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=178b9195980000
Reported-by [email protected]
Fixes 9df66d5b9f45 ("cfg80211: fix default HE tx bitrate mask in 2G band")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#4 lore raw
Quoted 18 lines · <[email protected]> wrote:

syzbot has bisected this issue to:

commit 9df66d5b9f45c39b3925d16e8947cc10009b186d

Author: Ping-Ke Shih <[email protected]>
Date:   Wed Jun 9 07:59:44 2021 +0000

cfg80211: fix default HE tx bitrate mask in 2G band

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13e233fd980000
start commit:   51835949dda3 Merge tag 'net-next-6.11' of git://git.kernel..
git tree:       net-next
final oops:     https://syzkaller.appspot.com/x/report.txt?x=101233fd980000
console output: https://syzkaller.appspot.com/x/log.txt?x=17e233fd980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=d3bdd09ea2371c89
dashboard link: https://syzkaller.appspot.com/bug?extid=8dd98a9e98ee28dc484a
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14608749980000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=178b9195980000
Quoted 4 lines
Reported-by [email protected]
Fixes 9df66d5b9f45 ("cfg80211: fix default HE tx bitrate mask in 2G band")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection

I sent a patch [1] to avoid the warning of

no supported rates for sta (null) (0xffffffff, band 0) in rate_mask 0x0 with flags 0x0

[1] https://lore.kernel.org/linux-wireless/[email protected]/T/#u