* [syzbot] WARNING: zero-size vmalloc in corrupted
@ 2021-06-23 9:15 syzbot
2021-06-23 16:19 ` Pavel Skripkin
0 siblings, 1 reply; 7+ messages in thread
From: syzbot @ 2021-06-23 9:15 UTC (permalink / raw)
To: akpm, coreteam, davem, dsahern, fw, kadlec, kuba, linux-kernel,
linux-mm, netdev, netfilter-devel, pablo, syzkaller-bugs,
yoshfuji
Hello,
syzbot found the following issue on:
HEAD commit: 13311e74 Linux 5.13-rc7
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=15d01e58300000
kernel config: https://syzkaller.appspot.com/x/.config?x=42ecca11b759d96c
dashboard link: https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14bb89e8300000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17cc51b8300000
The issue was bisected to:
commit f9006acc8dfe59e25aa75729728ac57a8d84fc32
Author: Florian Westphal <fw@strlen.de>
Date: Wed Apr 21 07:51:08 2021 +0000
netfilter: arp_tables: pass table pointer via nf_hook_ops
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13b88400300000
final oops: https://syzkaller.appspot.com/x/report.txt?x=10788400300000
console output: https://syzkaller.appspot.com/x/log.txt?x=17b88400300000
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+c2f6f09fe907a838effb@syzkaller.appspotmail.com
Fixes: f9006acc8dfe ("netfilter: arp_tables: pass table pointer via nf_hook_ops")
usb 1-1: media controller created
dvbdev: dvb_create_media_entity: media entity 'dvb-demux' registered.
cxusb: set interface failed
dvb-usb: bulk message failed: -22 (1/0)
DVB: Unable to find symbol mt352_attach()
dvb-usb: no frontend was attached by 'DViCO FusionHDTV DVB-T USB (LGZ201)'
dvbdev: DVB: registering new adapter (DViCO FusionHDTV DVB-T USB (LGZ201))
usb 1-1: media controller created
------------[ cut here ]------------
WARNING: CPU: 1 PID: 2950 at mm/vmalloc.c:2873 __vmalloc_node_range+0x769/0x970 mm/vmalloc.c:2873
Modules linked in:
CPU: 1 PID: 2950 Comm: kworker/1:2 Not tainted 5.13.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:__vmalloc_node_range+0x769/0x970 mm/vmalloc.c:2873
Code: c7 04 24 00 00 00 00 eb 93 e8 b3 44 c5 ff 44 89 fa 44 89 f6 4c 89 ef e8 05 f7 09 00 48 89 04 24 e9 be fb ff ff e8 97 44 c5 ff <0f> 0b 48
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches
^ permalink raw reply [flat|nested] 7+ messages in thread* Re: [syzbot] WARNING: zero-size vmalloc in corrupted
2021-06-23 9:15 [syzbot] WARNING: zero-size vmalloc in corrupted syzbot
@ 2021-06-23 16:19 ` Pavel Skripkin
2021-06-23 16:28 ` Pavel Skripkin
2021-06-23 16:37 ` syzbot
0 siblings, 2 replies; 7+ messages in thread
From: Pavel Skripkin @ 2021-06-23 16:19 UTC (permalink / raw)
To: syzbot
Cc: akpm, coreteam, davem, dsahern, fw, kadlec, kuba, linux-kernel,
linux-mm, netdev, netfilter-devel, pablo, syzkaller-bugs,
yoshfuji
[-- Attachment #1: Type: text/plain, Size: 1265 bytes --]
On Wed, 23 Jun 2021 02:15:23 -0700
syzbot <syzbot+c2f6f09fe907a838effb@syzkaller.appspotmail.com> wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 13311e74 Linux 5.13-rc7
> git tree: upstream
> console output:
> https://syzkaller.appspot.com/x/log.txt?x=15d01e58300000 kernel
> config: https://syzkaller.appspot.com/x/.config?x=42ecca11b759d96c
> dashboard link:
> https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb syz
> repro:
> https://syzkaller.appspot.com/x/repro.syz?x=14bb89e8300000 C
> reproducer: https://syzkaller.appspot.com/x/repro.c?x=17cc51b8300000
>
> The issue was bisected to:
>
> commit f9006acc8dfe59e25aa75729728ac57a8d84fc32
> Author: Florian Westphal <fw@strlen.de>
> Date: Wed Apr 21 07:51:08 2021 +0000
>
> netfilter: arp_tables: pass table pointer via nf_hook_ops
>
> bisection log:
> https://syzkaller.appspot.com/x/bisect.txt?x=13b88400300000 final
> oops: https://syzkaller.appspot.com/x/report.txt?x=10788400300000
> console output:
> https://syzkaller.appspot.com/x/log.txt?x=17b88400300000
>
This one is similar to previous zero-size vmalloc, I guess :)
#syz test
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
With regards,
Pavel Skripkin
[-- Attachment #2: 0001-media-dvb-usb-fix-wrong-definition.patch --]
[-- Type: text/x-patch, Size: 821 bytes --]
From b1ed745713bb840e0778c5a13f1f83f535dca044 Mon Sep 17 00:00:00 2001
From: Pavel Skripkin <paskripkin@gmail.com>
Date: Wed, 23 Jun 2021 19:18:09 +0300
Subject: [PATCH] media: dvb-usb: fix wrong definition
/* ..... */
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
---
drivers/media/usb/dvb-usb/cxusb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index 761992ad05e2..7707de7bae7c 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -1947,7 +1947,7 @@ static struct dvb_usb_device_properties cxusb_bluebird_lgz201_properties = {
.size_of_priv = sizeof(struct cxusb_state),
- .num_adapters = 2,
+ .num_adapters = 1,
.adapter = {
{
.num_frontends = 1,
--
2.32.0
^ permalink raw reply related [flat|nested] 7+ messages in thread* Re: [syzbot] WARNING: zero-size vmalloc in corrupted
2021-06-23 16:19 ` Pavel Skripkin
@ 2021-06-23 16:28 ` Pavel Skripkin
2021-06-23 16:28 ` syzbot
2021-06-23 16:28 ` syzbot
2021-06-23 16:37 ` syzbot
1 sibling, 2 replies; 7+ messages in thread
From: Pavel Skripkin @ 2021-06-23 16:28 UTC (permalink / raw)
To: syzbot
Cc: akpm, coreteam, davem, dsahern, fw, kadlec, kuba, linux-kernel,
linux-mm, netdev, netfilter-devel, pablo, syzkaller-bugs,
yoshfuji
On Wed, 23 Jun 2021 19:19:28 +0300
Pavel Skripkin <paskripkin@gmail.com> wrote:
> On Wed, 23 Jun 2021 02:15:23 -0700
> syzbot <syzbot+c2f6f09fe907a838effb@syzkaller.appspotmail.com> wrote:
>
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit: 13311e74 Linux 5.13-rc7
> > git tree: upstream
> > console output:
> > https://syzkaller.appspot.com/x/log.txt?x=15d01e58300000 kernel
> > config: https://syzkaller.appspot.com/x/.config?x=42ecca11b759d96c
> > dashboard link:
> > https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb syz
> > repro:
> > https://syzkaller.appspot.com/x/repro.syz?x=14bb89e8300000 C
> > reproducer:
> > https://syzkaller.appspot.com/x/repro.c?x=17cc51b8300000
> >
> > The issue was bisected to:
> >
> > commit f9006acc8dfe59e25aa75729728ac57a8d84fc32
> > Author: Florian Westphal <fw@strlen.de>
> > Date: Wed Apr 21 07:51:08 2021 +0000
> >
> > netfilter: arp_tables: pass table pointer via nf_hook_ops
> >
> > bisection log:
> > https://syzkaller.appspot.com/x/bisect.txt?x=13b88400300000 final
> > oops:
> > https://syzkaller.appspot.com/x/report.txt?x=10788400300000 console
> > output: https://syzkaller.appspot.com/x/log.txt?x=17b88400300000
> >
>
> This one is similar to previous zero-size vmalloc, I guess :)
>
> #syz test
> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> master
>
>
Hah, I didn't notice that this one is already fixed by me. But the
patch is in the media tree, it's not upstreamed yet:
https://git.linuxtv.org/media_tree.git/commit/?id=c680ed46e418e9c785d76cf44eb33bfd1e8cf3f6
So,
#syz dup: WARNING: zero-size vmalloc in dvb_dmx_init
With regards,
Pavel Skripkin
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [syzbot] WARNING: zero-size vmalloc in corrupted
2021-06-23 16:28 ` Pavel Skripkin
@ 2021-06-23 16:28 ` syzbot
2021-06-23 16:28 ` syzbot
1 sibling, 0 replies; 7+ messages in thread
From: syzbot @ 2021-06-23 16:28 UTC (permalink / raw)
To: Pavel Skripkin
Cc: akpm, coreteam, davem, dsahern, fw, kadlec, kuba, linux-kernel,
linux-mm, netdev, netfilter-devel, pablo, paskripkin,
syzkaller-bugs, yoshfuji
> On Wed, 23 Jun 2021 19:19:28 +0300
> Pavel Skripkin <paskripkin@gmail.com> wrote:
>
>> On Wed, 23 Jun 2021 02:15:23 -0700
>> syzbot <syzbot+c2f6f09fe907a838effb@syzkaller.appspotmail.com> wrote:
>>
>> > Hello,
>> >
>> > syzbot found the following issue on:
>> >
>> > HEAD commit: 13311e74 Linux 5.13-rc7
>> > git tree: upstream
>> > console output:
>> > https://syzkaller.appspot.com/x/log.txt?x=15d01e58300000 kernel
>> > config: https://syzkaller.appspot.com/x/.config?x=42ecca11b759d96c
>> > dashboard link:
>> > https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb syz
>> > repro:
>> > https://syzkaller.appspot.com/x/repro.syz?x=14bb89e8300000 C
>> > reproducer:
>> > https://syzkaller.appspot.com/x/repro.c?x=17cc51b8300000
>> >
>> > The issue was bisected to:
>> >
>> > commit f9006acc8dfe59e25aa75729728ac57a8d84fc32
>> > Author: Florian Westphal <fw@strlen.de>
>> > Date: Wed Apr 21 07:51:08 2021 +0000
>> >
>> > netfilter: arp_tables: pass table pointer via nf_hook_ops
>> >
>> > bisection log:
>> > https://syzkaller.appspot.com/x/bisect.txt?x=13b88400300000 final
>> > oops:
>> > https://syzkaller.appspot.com/x/report.txt?x=10788400300000 console
>> > output: https://syzkaller.appspot.com/x/log.txt?x=17b88400300000
>> >
>>
>> This one is similar to previous zero-size vmalloc, I guess :)
>>
>> #syz test
>> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>> master
>>
>>
>
> Hah, I didn't notice that this one is already fixed by me. But the
> patch is in the media tree, it's not upstreamed yet:
>
> https://git.linuxtv.org/media_tree.git/commit/?id=c680ed46e418e9c785d76cf44eb33bfd1e8cf3f6
>
> So,
>
> #syz dup: WARNING: zero-size vmalloc in dvb_dmx_init
Can't dup bug to a bug in different reporting (upstream->internal).Please dup syzbot bugs only onto syzbot bugs for the same kernel/reporting.
>
> With regards,
> Pavel Skripkin
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [syzbot] WARNING: zero-size vmalloc in corrupted
2021-06-23 16:28 ` Pavel Skripkin
2021-06-23 16:28 ` syzbot
@ 2021-06-23 16:28 ` syzbot
2021-06-24 6:17 ` Dmitry Vyukov
1 sibling, 1 reply; 7+ messages in thread
From: syzbot @ 2021-06-23 16:28 UTC (permalink / raw)
To: Pavel Skripkin
Cc: akpm, coreteam, davem, dsahern, fw, kadlec, kuba, linux-kernel,
linux-mm, netdev, netfilter-devel, pablo, paskripkin,
syzkaller-bugs, yoshfuji
> On Wed, 23 Jun 2021 19:19:28 +0300
> Pavel Skripkin <paskripkin@gmail.com> wrote:
>
>> On Wed, 23 Jun 2021 02:15:23 -0700
>> syzbot <syzbot+c2f6f09fe907a838effb@syzkaller.appspotmail.com> wrote:
>>
>> > Hello,
>> >
>> > syzbot found the following issue on:
>> >
>> > HEAD commit: 13311e74 Linux 5.13-rc7
>> > git tree: upstream
>> > console output:
>> > https://syzkaller.appspot.com/x/log.txt?x=15d01e58300000 kernel
>> > config: https://syzkaller.appspot.com/x/.config?x=42ecca11b759d96c
>> > dashboard link:
>> > https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb syz
>> > repro:
>> > https://syzkaller.appspot.com/x/repro.syz?x=14bb89e8300000 C
>> > reproducer:
>> > https://syzkaller.appspot.com/x/repro.c?x=17cc51b8300000
>> >
>> > The issue was bisected to:
>> >
>> > commit f9006acc8dfe59e25aa75729728ac57a8d84fc32
>> > Author: Florian Westphal <fw@strlen.de>
>> > Date: Wed Apr 21 07:51:08 2021 +0000
>> >
>> > netfilter: arp_tables: pass table pointer via nf_hook_ops
>> >
>> > bisection log:
>> > https://syzkaller.appspot.com/x/bisect.txt?x=13b88400300000 final
>> > oops:
>> > https://syzkaller.appspot.com/x/report.txt?x=10788400300000 console
>> > output: https://syzkaller.appspot.com/x/log.txt?x=17b88400300000
>> >
>>
>> This one is similar to previous zero-size vmalloc, I guess :)
>>
>> #syz test
>> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>> master
>>
>>
>
> Hah, I didn't notice that this one is already fixed by me. But the
> patch is in the media tree, it's not upstreamed yet:
>
> https://git.linuxtv.org/media_tree.git/commit/?id=c680ed46e418e9c785d76cf44eb33bfd1e8cf3f6
>
> So,
>
> #syz dup: WARNING: zero-size vmalloc in dvb_dmx_init
Can't dup bug to a bug in different reporting (upstream->internal).Please dup syzbot bugs only onto syzbot bugs for the same kernel/reporting.
>
> With regards,
> Pavel Skripkin
>
> --
> You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/20210623192837.13792eae%40gmail.com.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [syzbot] WARNING: zero-size vmalloc in corrupted
2021-06-23 16:28 ` syzbot
@ 2021-06-24 6:17 ` Dmitry Vyukov
0 siblings, 0 replies; 7+ messages in thread
From: Dmitry Vyukov @ 2021-06-24 6:17 UTC (permalink / raw)
To: syzbot
Cc: Pavel Skripkin, akpm, coreteam, davem, dsahern, fw, kadlec, kuba,
linux-kernel, linux-mm, netdev, netfilter-devel, pablo,
syzkaller-bugs, yoshfuji
On Wed, Jun 23, 2021 at 6:28 PM syzbot
<syzbot+c2f6f09fe907a838effb@syzkaller.appspotmail.com> wrote:
>
> > On Wed, 23 Jun 2021 19:19:28 +0300
> > Pavel Skripkin <paskripkin@gmail.com> wrote:
> >
> >> On Wed, 23 Jun 2021 02:15:23 -0700
> >> syzbot <syzbot+c2f6f09fe907a838effb@syzkaller.appspotmail.com> wrote:
> >>
> >> > Hello,
> >> >
> >> > syzbot found the following issue on:
> >> >
> >> > HEAD commit: 13311e74 Linux 5.13-rc7
> >> > git tree: upstream
> >> > console output:
> >> > https://syzkaller.appspot.com/x/log.txt?x=15d01e58300000 kernel
> >> > config: https://syzkaller.appspot.com/x/.config?x=42ecca11b759d96c
> >> > dashboard link:
> >> > https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb syz
> >> > repro:
> >> > https://syzkaller.appspot.com/x/repro.syz?x=14bb89e8300000 C
> >> > reproducer:
> >> > https://syzkaller.appspot.com/x/repro.c?x=17cc51b8300000
> >> >
> >> > The issue was bisected to:
> >> >
> >> > commit f9006acc8dfe59e25aa75729728ac57a8d84fc32
> >> > Author: Florian Westphal <fw@strlen.de>
> >> > Date: Wed Apr 21 07:51:08 2021 +0000
> >> >
> >> > netfilter: arp_tables: pass table pointer via nf_hook_ops
> >> >
> >> > bisection log:
> >> > https://syzkaller.appspot.com/x/bisect.txt?x=13b88400300000 final
> >> > oops:
> >> > https://syzkaller.appspot.com/x/report.txt?x=10788400300000 console
> >> > output: https://syzkaller.appspot.com/x/log.txt?x=17b88400300000
> >> >
> >>
> >> This one is similar to previous zero-size vmalloc, I guess :)
> >>
> >> #syz test
> >> git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> >> master
> >>
> >>
> >
> > Hah, I didn't notice that this one is already fixed by me. But the
> > patch is in the media tree, it's not upstreamed yet:
> >
> > https://git.linuxtv.org/media_tree.git/commit/?id=c680ed46e418e9c785d76cf44eb33bfd1e8cf3f6
> >
> > So,
> >
> > #syz dup: WARNING: zero-size vmalloc in dvb_dmx_init
>
> Can't dup bug to a bug in different reporting (upstream->internal).Please dup syzbot bugs only onto syzbot bugs for the same kernel/reporting.
I think we can say:
#syz dup: WARNING in __vmalloc_node_range
https://syzkaller.appspot.com/bug?id=3c558412597cc402fd7fbb250ca30d04d46c8c60
as that was the original bug report.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [syzbot] WARNING: zero-size vmalloc in corrupted
2021-06-23 16:19 ` Pavel Skripkin
2021-06-23 16:28 ` Pavel Skripkin
@ 2021-06-23 16:37 ` syzbot
1 sibling, 0 replies; 7+ messages in thread
From: syzbot @ 2021-06-23 16:37 UTC (permalink / raw)
To: akpm, coreteam, davem, dsahern, fw, kadlec, kuba, linux-kernel,
linux-mm, netdev, netfilter-devel, pablo, paskripkin,
syzkaller-bugs, yoshfuji
Hello,
syzbot has tested the proposed patch but the reproducer is still triggering an issue:
BUG: sleeping function called from invalid context in lock_sock_nested
BUG: sleeping function called from invalid context at net/core/sock.c:3064
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 8843, name: syz-executor.2
1 lock held by syz-executor.2/8843:
#0: ffffffff8d0c43c0 (hci_sk_list.lock){++++}-{2:2}, at: hci_sock_dev_event+0x3db/0x660 net/bluetooth/hci_sock.c:763
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 8843 Comm: syz-executor.2 Not tainted 5.13.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:79 [inline]
dump_stack+0x141/0x1d7 lib/dump_stack.c:120
___might_sleep.cold+0x1f1/0x237 kernel/sched/core.c:8337
lock_sock_nested+0x25/0x120 net/core/sock.c:3064
lock_sock include/net/sock.h:1610 [inline]
hci_sock_dev_event+0x465/0x660 net/bluetooth/hci_sock.c:765
hci_unregister_dev+0x2fd/0x1130 net/bluetooth/hci_core.c:4013
vhci_release+0x70/0xe0 drivers/bluetooth/hci_vhci.c:340
__fput+0x288/0x920 fs/file_table.c:280
task_work_run+0xdd/0x1a0 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
do_exit+0xbfc/0x2a60 kernel/exit.c:826
do_group_exit+0x125/0x310 kernel/exit.c:923
__do_sys_exit_group kernel/exit.c:934 [inline]
__se_sys_exit_group kernel/exit.c:932 [inline]
__x64_sys_exit_group+0x3a/0x50 kernel/exit.c:932
do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665d9
Code: Unable to access opcode bytes at RIP 0x4665af.
RSP: 002b:00007fff82506ba8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fff82507368 RCX: 00000000004665d9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 0000000000000000 R08: 0000000000000025 R09: 00007fff82507368
R10: 00000000ffffffff R11: 0000000000000246 R12: 00000000004bef54
R13: 0000000000000010 R14: 0000000000000000 R15: 0000000000400538
======================================================
Tested on:
commit: 0c18f29a module: limit enabling module.sig_enforce
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17ae9658300000
kernel config: https://syzkaller.appspot.com/x/.config?x=3932cedd2c2d4a69
dashboard link: https://syzkaller.appspot.com/bug?extid=c2f6f09fe907a838effb
compiler:
patch: https://syzkaller.appspot.com/x/patch.diff?x=10fc8400300000
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2021-06-24 6:17 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-23 9:15 [syzbot] WARNING: zero-size vmalloc in corrupted syzbot
2021-06-23 16:19 ` Pavel Skripkin
2021-06-23 16:28 ` Pavel Skripkin
2021-06-23 16:28 ` syzbot
2021-06-23 16:28 ` syzbot
2021-06-24 6:17 ` Dmitry Vyukov
2021-06-23 16:37 ` syzbot
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).