* Re: BUG: WARNING in retire_sysctl_set [not found] <CALAgD-4uup-u-7rVLpFqKWqeVVVnf5-88vqHOKD-TnGeYmHbQw@mail.gmail.com> @ 2024-08-29 1:26 ` Kees Cook 2024-08-29 5:02 ` Xingyu Li 0 siblings, 1 reply; 4+ messages in thread From: Kees Cook @ 2024-08-29 1:26 UTC (permalink / raw) To: Xingyu Li Cc: mcgrof, j.granados, linux-kernel, linux-fsdevel, Yu Hao, Paul E. McKenney, Waiman Long, Sven Eckelmann, Thomas Gleixner, anna-maria, frederic, netdev, Eric Dumazet, Jakub Kicinski, Tejun Heo, Kuniyuki Iwashima, Greg Kroah-Hartman Hi, On Wed, Aug 28, 2024 at 02:16:34PM -0700, Xingyu Li wrote: > We found a bug in Linux 6.10. It is possibly a logic bug. > The bug report is as follows, but unfortunately there is no generated > syzkaller reproducer. I see you've sent 44 reports like this recently[1], but only have reproducers for 4 of them[2]. Without reproducers these reports aren't very helpful. There are hundreds like them (many with reproducers) already at: https://syzkaller.appspot.com/upstream Please only send these kind of reports if you have a fix for them (preferred) or a reproducer for an actual problem. This has been mentioned a few times already[3][4]; have you seen these replies? -Kees [1] https://lore.kernel.org/all/?q=f%3Axli399%40 [2] https://lore.kernel.org/all/?q=f%3Axli399%40+%22The+reproducer%22 [3] https://lore.kernel.org/netdev/CANn89iK6rq0XWO5-R5CzA5YAv2ygaTA==EVh+O74VHGDBNqUoA@mail.gmail.com/ [4] https://lore.kernel.org/all/20240829011805.92574-1-kuniyu@amazon.com/ -- Kees Cook ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: BUG: WARNING in retire_sysctl_set 2024-08-29 1:26 ` BUG: WARNING in retire_sysctl_set Kees Cook @ 2024-08-29 5:02 ` Xingyu Li 2024-08-29 5:33 ` Kees Cook 0 siblings, 1 reply; 4+ messages in thread From: Xingyu Li @ 2024-08-29 5:02 UTC (permalink / raw) To: Kees Cook Cc: mcgrof, j.granados, linux-kernel, linux-fsdevel, Yu Hao, Paul E. McKenney, Waiman Long, Sven Eckelmann, Thomas Gleixner, anna-maria, frederic, netdev, Eric Dumazet, Jakub Kicinski, Tejun Heo, Kuniyuki Iwashima, Greg Kroah-Hartman This has been mentioned a few times already[3][4]; have you seen these replies? Sorry, I did not see this email https://lore.kernel.org/netdev/CANn89iK6rq0XWO5-R5CzA5YAv2ygaTA==EVh+O74VHGDBNqUoA@mail.gmail.com/. And I received this reply https://lore.kernel.org/all/20240829011805.92574-1-kuniyu@amazon.com/ just 8 minutes before your response. Previously, I did not have the experience to send emails about bug reporting. Later, I will take care that I only send bug reports with reproducer or with a patch. but only have reproducers for 4 of them[2]. Your search words may ignore some of my emails. In fact, it has 16 bug reports with the C reproducer(previously, some of them is only given a syzkaller reproducer, and I just checked to confirm that C reproducer is given for each bug). https://lore.kernel.org/all/CALAgD-4M6bv53fpWnb2vdu4kxnCe_7H3kbOvs3DBAd8DeRHYuw@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-5cKJnWRsS_2rjL1P9pC0dbNX66b8x09p=DUx1kD+p6PQ@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-7TsMdA7rjxfpheXc=MNqikEXY9TZNxJt4z9vm6Yfs5qQ@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-6miPB6F2=89m90HzEGT4dmCX_ws1r26w7Vr8rtD8Z96Q@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-6Uy-2kVrj05SeCiN4wZu75Vq5-TCEsiUGzYwzjO4+Ahg@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-5myPieAa_9BY6RVfBjWT_8g48+S0CX7c=EihMzdwakxw@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-718DVmcVHtgSFGKbgr0ePoUjN2ST=gBtdYtGX5GUqBQg@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-5kt+F6S1aAwRhKMKb0KwFGzfJCWyHguotEvJGBBBvFkA@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-7JNKw5m0wpGAN+ezCL-qn7LcTL5vgyBmQZKbf5BTNUCw@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-6MJC+D0DzxLOpVvCbYzHE-r1YzNORtpOh-f+hgEkMjzg@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-7hbfOzovnPqVqo6bqb1nHZ2WciUOTsz0Dtwsgr+yx04w@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-4hkHVcCq2ycdwnA2hYDBMqijLUOfZgvf1WfFpU-8+42w@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-6gJ4W1rPj=CWG7bFUPpEJnUjEhQd3uvH=7C=aGKb=CUQ@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-7C3t=vRTvpnVvsZ_1YhgiiynDaX_ud0O6pxSBn3suADQ@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-4b_yFdN4fwPxpXEpJkcxEwXBxRHeQjeA3x3rMX4JpUwA@mail.gmail.com/ https://lore.kernel.org/all/CALAgD-58VEomA47Srga5H-p6cZa0zPj+y3E1se0rHb3gj4UvyA@mail.gmail.com/ There are hundreds like them (many with reproducers) already at: https://syzkaller.appspot.com/upstream In fact, the bugs that I report are fuzzed by the syzkaller templates that we generated, but not those from the syzkaller official templates. We want to find bugs that do not have the corresponding official syzkaller template. I also checked to make sure that the bugs I reported did not occur on syzbot. On Wed, Aug 28, 2024 at 6:26 PM Kees Cook <kees@kernel.org> wrote: > > Hi, > > On Wed, Aug 28, 2024 at 02:16:34PM -0700, Xingyu Li wrote: > > We found a bug in Linux 6.10. It is possibly a logic bug. > > The bug report is as follows, but unfortunately there is no generated > > syzkaller reproducer. > > I see you've sent 44 reports like this recently[1], but only have > reproducers for 4 of them[2]. > > Without reproducers these reports aren't very helpful. There > are hundreds like them (many with reproducers) already at: > https://syzkaller.appspot.com/upstream > > Please only send these kind of reports if you have a fix for them > (preferred) or a reproducer for an actual problem. This has been mentioned > a few times already[3][4]; have you seen these replies? > > -Kees > > [1] https://lore.kernel.org/all/?q=f%3Axli399%40 > [2] https://lore.kernel.org/all/?q=f%3Axli399%40+%22The+reproducer%22 > [3] https://lore.kernel.org/netdev/CANn89iK6rq0XWO5-R5CzA5YAv2ygaTA==EVh+O74VHGDBNqUoA@mail.gmail.com/ > [4] https://lore.kernel.org/all/20240829011805.92574-1-kuniyu@amazon.com/ > > -- > Kees Cook -- Yours sincerely, Xingyu ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: BUG: WARNING in retire_sysctl_set 2024-08-29 5:02 ` Xingyu Li @ 2024-08-29 5:33 ` Kees Cook 2024-08-29 6:00 ` Yu Hao 0 siblings, 1 reply; 4+ messages in thread From: Kees Cook @ 2024-08-29 5:33 UTC (permalink / raw) To: Xingyu Li Cc: mcgrof, j.granados, linux-kernel, linux-fsdevel, Yu Hao, Paul E. McKenney, Waiman Long, Sven Eckelmann, Thomas Gleixner, anna-maria, frederic, netdev, Eric Dumazet, Jakub Kicinski, Tejun Heo, Kuniyuki Iwashima, Greg Kroah-Hartman On August 28, 2024 10:02:00 PM PDT, Xingyu Li <xli399@ucr.edu> wrote: >In fact, the bugs that I report are fuzzed by the syzkaller templates >that we generated, but not those from the syzkaller official >templates. We want to find bugs that do not have the corresponding >official syzkaller template. >I also checked to make sure that the bugs I reported did not occur on syzbot. That's excellent that you've developed better templates! Can you submit these to syzkaller upstream? Then the automated fuzzing CI dashboard will benefit (and save you the work of running and reporting the new finds). -Kees -- Kees Cook ^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: BUG: WARNING in retire_sysctl_set 2024-08-29 5:33 ` Kees Cook @ 2024-08-29 6:00 ` Yu Hao 0 siblings, 0 replies; 4+ messages in thread From: Yu Hao @ 2024-08-29 6:00 UTC (permalink / raw) To: Kees Cook Cc: Xingyu Li, mcgrof, j.granados, linux-kernel, linux-fsdevel, Paul E. McKenney, Waiman Long, Sven Eckelmann, Thomas Gleixner, anna-maria, frederic, netdev, Eric Dumazet, Jakub Kicinski, Tejun Heo, Kuniyuki Iwashima, Greg Kroah-Hartman On Wed, Aug 28, 2024 at 10:33 PM Kees Cook <kees@kernel.org> wrote: > That's excellent that you've developed better templates! Can you submit these to syzkaller upstream? Then the automated fuzzing CI dashboard will benefit (and save you the work of running and reporting the new finds). Yes, we are also working on this. And it also takes some time to figure out the differences in the syscall descriptions and to satisfy syzkaller's style requirements. So we are still working on the patch of syscall descriptions for Syzkaller. Once again, we apologize for our mistakes of some helpless report emails and thank you for your reminder and understanding. ^ permalink raw reply [flat|nested] 4+ messages in thread
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[not found] <CALAgD-4uup-u-7rVLpFqKWqeVVVnf5-88vqHOKD-TnGeYmHbQw@mail.gmail.com>
2024-08-29 1:26 ` BUG: WARNING in retire_sysctl_set Kees Cook
2024-08-29 5:02 ` Xingyu Li
2024-08-29 5:33 ` Kees Cook
2024-08-29 6:00 ` Yu Hao
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