From: syzbot <syzbot+de3d7f9bcc9212f3fae1@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Forwarded: Re: test patch
Date: Thu, 10 Sep 2026 04:48:44 -0700 [thread overview]
Message-ID: <6aa2991c.f2639fcc.29487d.0015.GAE@google.com> (raw)
In-Reply-To: <6a9dc9e7.87c06881.102b7.0007.GAE@google.com>
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***
Subject: Re: test patch
Author: tahasami8@gmail.com
#syz test git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 9c03a555a6ba..98130182e05d 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -7995,8 +7995,10 @@ int ring_buffer_map_get_reader(struct trace_buffer *buffer, int cpu)
goto out;
reader = rb_get_reader_page(cpu_buffer);
- if (WARN_ON(!reader))
+ if (!reader) {
+ WARN_ON(cpu_buffer->reader_page != cpu_buffer->commit_page);
goto out;
+ }
/* Check if any events were dropped */
missed_events = cpu_buffer->lost_events;
next prev parent reply other threads:[~2026-09-10 11:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-06 20:15 [syzbot] [trace?] WARNING in ring_buffer_map_get_reader (3) syzbot
2026-09-07 17:57 ` syzbot
2026-09-10 11:48 ` syzbot [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-08-01 0:01 [syzbot] [usb?] KASAN: slab-use-after-free Read in vhci_shutdown_connection syzbot
2026-09-07 13:57 ` Forwarded: Re: test patch syzbot
2026-09-07 14:14 ` syzbot
2026-09-08 11:07 ` syzbot
2026-09-09 6:32 ` syzbot
2026-09-09 12:33 ` syzbot
2026-07-31 6:14 [syzbot] [serial?] KASAN: slab-use-after-free Write in tty_init_dev syzbot
2026-09-09 7:10 ` Forwarded: Re: test patch syzbot
2026-09-09 7:44 ` syzbot
2026-09-09 11:35 ` syzbot
2026-09-09 13:06 ` syzbot
2026-09-10 6:09 ` syzbot
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