From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEXHASH_WORD,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 261A1C5B57D for ; Tue, 2 Jul 2019 05:43:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C99162146F for ; Tue, 2 Jul 2019 05:43:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562046229; bh=YJ/uwGoa62xkSSwJfyvmsvOAT9fNUAUhZzzGpoag+jA=; h=Date:From:To:Cc:Subject:List-ID:From; b=pCYfk7oD+46ns2+ovlbK9D7B8I+ELIcneh+Xn/KDyocB/UGLgwk8P2m35TgbFMTtL 6l0M/SwKppbX+XRgLcbNnjlnRqVM4EoIVGxm/RDmBp+wchACr4l9+K7JBb2RNX08Oh Y4+i3TvFF9k70bvq9gnCIuH+7JDJioyweWRNzbtw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726305AbfGBFnr (ORCPT ); Tue, 2 Jul 2019 01:43:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:36734 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725775AbfGBFnr (ORCPT ); Tue, 2 Jul 2019 01:43:47 -0400 Received: from sol.localdomain (c-24-5-143-220.hsd1.ca.comcast.net [24.5.143.220]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B24B720881; Tue, 2 Jul 2019 05:43:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1562046224; bh=YJ/uwGoa62xkSSwJfyvmsvOAT9fNUAUhZzzGpoag+jA=; h=Date:From:To:Cc:Subject:From; b=mDq5EhGUxdjOyzGLMYBO435mswyVz6AYx0r+LdJ3teNbMzho6FVAwXRCbTWpqrej+ OmoX6udFVMVDa7YR2CkAN5NOEGKurAiPxDImL2Y38xOMEepEgtIJ84uOzy74yC+S4f N8fqUPXl96avUDTB8eV+goEsH5q4CcMhH/6GTy5c= Date: Mon, 1 Jul 2019 22:43:42 -0700 From: Eric Biggers To: linux-kernel@vger.kernel.org, Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Song Liu , Kan Liang Cc: Alexander Shishkin , Jiri Olsa , Namhyung Kim , syzkaller-bugs@googlegroups.com Subject: Reminder: 22 open syzbot bugs in perf subsystem Message-ID: <20190702054342.GB27702@sol.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.12.1 (2019-06-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org [This email was generated by a script. Let me know if you have any suggestions to make it better, or if you want it re-generated with the latest status.] Of the currently open syzbot reports against the upstream kernel, I've manually marked 22 of them as possibly being bugs in the perf subsystem. I've listed these reports below, sorted by an algorithm that tries to list first the reports most likely to be still valid, important, and actionable. Of these 22 bugs, 7 were seen in mainline in the last week. Of these 22 bugs, 2 were bisected to commits from the following people: Song Liu Kan Liang If you believe a bug is no longer valid, please close the syzbot report by sending a '#syz fix', '#syz dup', or '#syz invalid' command in reply to the original thread, as explained at https://goo.gl/tpsmEJ#status If you believe I misattributed a bug to the perf subsystem, please let me know, and if possible forward the report to the correct people or mailing list. Here are the bugs: -------------------------------------------------------------------------------- Title: WARNING in perf_group_attach Last occurred: 0 days ago Reported: 185 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=bc574683e1e3241992f8460c82ddac937e3c88b9 Original thread: https://lkml.kernel.org/lkml/0000000000001282e1057e14848e@google.com/T/#u This bug has a C reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+23fe48cbe532abffa52e@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000001282e1057e14848e@google.com -------------------------------------------------------------------------------- Title: INFO: rcu detected stall in sys_sendfile64 (2) Last occurred: 0 days ago Reported: 163 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=6a6553c3d34bb00172b5cbd32f4912151b6133dc Original thread: https://lkml.kernel.org/lkml/00000000000010b2fc057fcdfaba@google.com/T/#u This bug has a C reproducer. syzbot has bisected this bug, but I think the bisection result is incorrect. The original thread for this bug received 15 replies; the last was 103 days ago. I'm not confident this bug is really in the perf subsystem. I also think it might be in the fs/ext4 subsystem. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+1505c80c74256c6118a5@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/00000000000010b2fc057fcdfaba@google.com -------------------------------------------------------------------------------- Title: INFO: rcu detected stall in ext4_file_write_iter Last occurred: 2 days ago Reported: 125 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=bc195cf62ac17381792072c72a692bf133c528d4 Original thread: https://lkml.kernel.org/lkml/0000000000009a01370582c6772a@google.com/T/#u This bug has a C reproducer. The original thread for this bug received 4 replies; the last was 123 days ago. I'm not confident this bug is really in the perf subsystem. I also think it might be in the fs/ext4 subsystem. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+7d19c5fe6a3f1161abb7@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000009a01370582c6772a@google.com -------------------------------------------------------------------------------- Title: KASAN: stack-out-of-bounds Read in update_stack_state Last occurred: 7 days ago Reported: 495 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=51b058f4d86b9045d31b6bbe97211d3ebc96d4fa Original thread: https://lkml.kernel.org/lkml/001a1143e62e6f71d20565bf329f@google.com/T/#u This bug has a C reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+2990ca6e76c080858a9c@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/001a1143e62e6f71d20565bf329f@google.com -------------------------------------------------------------------------------- Title: INFO: task hung in __do_page_fault (2) Last occurred: 6 days ago Reported: 247 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=9e5eb5f575324225d04b9b3095f5c3fc71700f08 Original thread: https://lkml.kernel.org/lkml/0000000000006e31980579315914@google.com/T/#u This bug has a C reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+6b074f741adbd93d2df5@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000006e31980579315914@google.com -------------------------------------------------------------------------------- Title: INFO: task hung in do_exit Last occurred: 1 day ago Reported: 79 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=3e6c42e24155e5f0125368e609bee32f2b7394fe Original thread: https://lkml.kernel.org/lkml/000000000000e02bf505866414ae@google.com/T/#u This bug has a syzkaller reproducer only. syzbot has bisected this bug, but I think the bisection result is incorrect. The original thread for this bug has received 1 reply, 78 days ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+9880e421ec82313d6527@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000e02bf505866414ae@google.com -------------------------------------------------------------------------------- Title: WARNING in add_event_to_ctx Last occurred: 0 days ago Reported: 11 days ago Branches: Mainline Dashboard link: https://syzkaller.appspot.com/bug?id=c0b2e13c4e106f405e56cc89843b0e54eb6d9e52 Original thread: https://lkml.kernel.org/lkml/000000000000946842058bc1291d@google.com/T/#u This bug has a C reproducer. This bug was bisected to: commit 33ea4b24277b06dbc55d7f5772a46f029600255e Author: Song Liu Date: Wed Dec 6 22:45:16 2017 +0000   perf/core: Implement the 'perf_uprobe' PMU No one has replied to the original thread for this bug yet. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+704bfe2c7d156640ad7a@syzkaller.appspotmail.com If you send any email or patch for this bug, please reply to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000946842058bc1291d@google.com -------------------------------------------------------------------------------- Title: general protection fault in perf_tp_event Last occurred: 0 days ago Reported: 424 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=db96e8cebcedb255a170187c8add3ea0745db13b Original thread: https://lkml.kernel.org/lkml/000000000000c39de9056b5a46ca@google.com/T/#u Unfortunately, this bug does not have a reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+2f86b8550eb66cbd5808@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000c39de9056b5a46ca@google.com -------------------------------------------------------------------------------- Title: WARNING in perf_reg_value Last occurred: 3 days ago Reported: 12 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=629d95983fbba49821af91acf780387bca180546 Original thread: https://lkml.kernel.org/lkml/000000000000734545058bb27ebb@google.com/T/#u This bug has a C reproducer. This bug was bisected to: commit 878068ea270ea82767ff1d26c91583263c81fba0 Author: Kan Liang Date: Tue Apr 2 19:44:59 2019 +0000   perf/x86: Support outputting XMM registers The original thread for this bug has received 3 replies; the last was 11 days ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+10189b9b0f8c4664badd@syzkaller.appspotmail.com If you send any email or patch for this bug, please reply to the original thread, which had activity only 11 days ago. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000734545058bb27ebb@google.com -------------------------------------------------------------------------------- Title: WARNING in tracepoint_probe_register_prio (3) Last occurred: 0 days ago Reported: 409 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=63e3738079e5b2a71cd19820e454b8ac315c7550 Original thread: https://lkml.kernel.org/lkml/000000000000ab6f84056c786b93@google.com/T/#u Unfortunately, this bug does not have a reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+774fddf07b7ab29a1e55@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000ab6f84056c786b93@google.com -------------------------------------------------------------------------------- Title: INFO: task hung in exit_mm Last occurred: 4 days ago Reported: 0 days ago Branches: Mainline Dashboard link: https://syzkaller.appspot.com/bug?id=dd115babf1498c3370fab8758d58940b7c6bffa4 Original thread: https://lkml.kernel.org/lkml/000000000000a193aa058c9a6499@google.com/T/#u This bug has a syzkaller reproducer only. The original thread for this bug has received 1 reply, 22 hours ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+8cc1843d4eec9c0dfb35@syzkaller.appspotmail.com If you send any email or patch for this bug, please reply to the original thread, which had activity only 22 hours ago. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000a193aa058c9a6499@google.com -------------------------------------------------------------------------------- Title: KASAN: use-after-free Read in _free_event Last occurred: 9 days ago Reported: 7 days ago Branches: Mainline Dashboard link: https://syzkaller.appspot.com/bug?id=178d9570289a3e1aaf929f00e78b0d9596fccc7c Original thread: https://lkml.kernel.org/lkml/000000000000dea828058c0d815d@google.com/T/#u Unfortunately, this bug does not have a reproducer. The original thread for this bug has received 1 reply, 7 days ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+37100ea87beb0cac28f4@syzkaller.appspotmail.com If you send any email or patch for this bug, please reply to the original thread, which had activity only 7 days ago. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000dea828058c0d815d@google.com -------------------------------------------------------------------------------- Title: KASAN: use-after-free Read in refcount_sub_and_test_checked (2) Last occurred: 74 days ago Reported: 180 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=eaf7abde8e5497bbf7403a3d2afb9226005362cf Original thread: https://lkml.kernel.org/lkml/0000000000004a6d7c057e77e97e@google.com/T/#u This bug has a syzkaller reproducer only. syzbot has bisected this bug, but I think the bisection result is incorrect. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+b0775615fa4c4479b691@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000004a6d7c057e77e97e@google.com -------------------------------------------------------------------------------- Title: KASAN: use-after-free Write in _free_event Last occurred: 120 days ago Reported: 357 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=e4223c174b5ef17b309798050835bafb6d6520b0 Original thread: https://lkml.kernel.org/lkml/000000000000ccdf0605708a9ccc@google.com/T/#u This bug has a C reproducer. The original thread for this bug received 14 replies; the last was 13 hours ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+a24c397a29ad22d86c98@syzkaller.appspotmail.com If you send any email or patch for this bug, please reply to the original thread, which had activity only 13 hours ago. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000ccdf0605708a9ccc@google.com -------------------------------------------------------------------------------- Title: WARNING in arch_install_hw_breakpoint Last occurred: 100 days ago Reported: 99 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=7250aa28cb43ada4cba944fe46d80f67435022ef Original thread: https://lkml.kernel.org/lkml/000000000000639f6a0584d11b82@google.com/T/#u This bug has a C reproducer. The original thread for this bug received 8 replies; the last was 95 days ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+370a6b0f11867bf13515@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000639f6a0584d11b82@google.com -------------------------------------------------------------------------------- Title: KASAN: use-after-free Read in uprobe_perf_close Last occurred: 136 days ago Reported: 455 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=3fb9c4777053e79a6d2a65ac3738664c87629a21 Original thread: https://lkml.kernel.org/lkml/001a113f8bf6a9acd90568e8ea59@google.com/T/#u This bug has a C reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+cef9473c7fa0fe8ab95e@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/001a113f8bf6a9acd90568e8ea59@google.com -------------------------------------------------------------------------------- Title: WARNING: ODEBUG bug in __do_softirq Last occurred: 73 days ago Reported: 499 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=26c9593893aa8625f556867ea71649010a07e74d Original thread: https://groups.google.com/d/msgid/syzkaller-bugs/001a1143e62eb6a9510565640e76%40google.com This bug has a syzkaller reproducer only. syzbot has bisected this bug, but I think the bisection result is incorrect. For some reason the original report email for this bug is missing from the LKML archive at lore.kernel.org, so my script couldn't check whether anyone has replied to it or not. The Google Groups link above should still work, though. Also try searching for the bug title. -------------------------------------------------------------------------------- Title: INFO: rcu detected stall in __perf_sw_event Last occurred: 81 days ago Reported: 144 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=c97097e0408c6c6f60ac89b78faaf0e42663cbac Original thread: https://lkml.kernel.org/lkml/00000000000003cadb05814f3284@google.com/T/#u This bug has a syzkaller reproducer only. syzbot has bisected this bug, but I think the bisection result is incorrect. The original thread for this bug received 2 replies; the last was 95 days ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+a41ac89a0712acde0e84@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/00000000000003cadb05814f3284@google.com -------------------------------------------------------------------------------- Title: WARNING in event_function_local Last occurred: 264 days ago Reported: 520 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=ea9e1f49354606d70d272294fcc1d80a86ea0e6b Original thread: https://lkml.kernel.org/lkml/001a1140589435c9b60563c76e3f@google.com/T/#u This bug has a C reproducer. The original thread for this bug received 8 replies; the last was 138 days ago. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+352bd10e338d9a90e5e0@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/001a1140589435c9b60563c76e3f@google.com -------------------------------------------------------------------------------- Title: INFO: task hung in uprobe_start_dup_mmap Last occurred: 84 days ago Reported: 298 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=4432696d9b58dd75ab7ea39171bfaaed10f44d47 Original thread: https://lkml.kernel.org/lkml/000000000000d83699057536ce5b@google.com/T/#u Unfortunately, this bug does not have a reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+cad3df271fa4d88da051@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000d83699057536ce5b@google.com -------------------------------------------------------------------------------- Title: possible deadlock in percpu_down_write Last occurred: 172 days ago Reported: 260 days ago Branches: Mainline Dashboard link: https://syzkaller.appspot.com/bug?id=041178b4b3a51686e1d5920a3d660b3e5b9d8ab3 Original thread: https://lkml.kernel.org/lkml/000000000000b5911105783c8a39@google.com/T/#u Unfortunately, this bug does not have a reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+7bf81a3e18fab8a61966@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000b5911105783c8a39@google.com -------------------------------------------------------------------------------- Title: possible deadlock in uprobe_clear_state Last occurred: 164 days ago Reported: 201 days ago Branches: Mainline Dashboard link: https://syzkaller.appspot.com/bug?id=a1ce9b3da349209c5085bb8c4fee753d68c3697f Original thread: https://lkml.kernel.org/lkml/00000000000010a9fb057cd14174@google.com/T/#u Unfortunately, this bug does not have a reproducer. No one replied to the original thread for this bug. If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+1068f09c44d151250c33@syzkaller.appspotmail.com If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/00000000000010a9fb057cd14174@google.com