[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
Andreas Sandberg, the upstream fix noted in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/comments/6 is available in Lucid+ as per http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-lucid.git;a=commit;h=ad0cf3478de8677f720ee06393b3147819568d6a . Hence, this is considered closed. If this doesn't work out for you, please reopen by executing the following via a terminal: apport-collect 1034010 ** Changed in: linux (Ubuntu) Status: Triaged = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
** Patch added: Fix for the bug reported in this bug ticket https://bugs.launchpad.net/bugs/1034010/+attachment/3251372/+files/0001-Perf-Correctly-check-the-return-value-from-copy_from.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
Adding kernel logs or similar to this bug wouldn't be useful since the effect of the bug can not be seen in the log. I'm changing the status of this bug to confirmed for the time being. I could upload a test case if that is required. This bug primarily affects the 2.6.32 series (Lucid Lynx). It probably affects other kernels in the early 2.6.3x series as well. ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
Do you happen to know if the fix has been proposed for inclusion in the earlier linux-stable trees? ** Changed in: linux (Ubuntu) Importance: Undecided = Medium ** Tags added: lucid ** Changed in: linux (Ubuntu) Status: Confirmed = Triaged ** Tags added: kernel-da-key -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
I don't know about any of the other threads. I only looked at the kernel I'm currently running. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
This is fixed upstreams by commit ad0cf3478de8677f720ee06393b3147819568d6a. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
Would it be possible for you to submit the patch to linux-stable[0] for inclusion in the 2.6.32 series? [0] http://vger.kernel.org/vger-lists.html#stable -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1034010] Re: Incorrect check when executing copy_from_user in perf_event_period
I don't really know the routines for submitting patches or requesting inclusion of fixes from other branches, so I'd prefer if someone else could do it. I should probably add that this is really a low-priority issue unless there are security implications. As far as I know, nobody is using the feature (neither PAPI nor Perfmon2). It seems like the Perfmon2 people wanted to use it [0] but but couldn't due to funny semantics. The same really goes for the use case I had in mind, even if this bug is fixed, the feature remains largely useless due to the problems outlined in [0]. [0] http://www.mail- archive.com/perfmon2-de...@lists.sourceforge.net/msg02657.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1034010 Title: Incorrect check when executing copy_from_user in perf_event_period To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1034010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
