[Kernel-packages] [Bug 1442878] Re: Backport upstream bugfix in cpuidle to fix memory corruption
** Changed in: linux (Ubuntu) Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1442878 Title: Backport upstream bugfix in cpuidle to fix memory corruption Status in linux package in Ubuntu: Fix Released Bug description: == Comment: #0 - Shilpasri G. Bhat shigb...@in.ibm.com - 2015-04-10 14:35:43 == This is a request to backport upstream cpuidle bugfix for a memory corruption d52356e7f48e powerpc: fix memory corruption by pnv_alloc_idle_core_states Space allocated for paca is based off nr_cpu_ids, but pnv_alloc_idle_core_states() iterates paca with cpu_nr_cores()*threads_per_core, which is using NR_CPUS. This causes pnv_alloc_idle_core_states() to write over memory, which is outside of paca array and may later lead to various panics. Fixes: 7cba160ad789 (powernv/cpuidle: Redesign idle states management) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1442878] Re: Backport upstream bugfix in cpuidle to fix memory corruption
** Changed in: linux (Ubuntu) Assignee: Taco Screen team (taco-screen-team) = Chris J Arges (arges) ** Changed in: linux (Ubuntu) Status: Triaged = In Progress -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1442878 Title: Backport upstream bugfix in cpuidle to fix memory corruption Status in linux package in Ubuntu: In Progress Bug description: == Comment: #0 - Shilpasri G. Bhat shigb...@in.ibm.com - 2015-04-10 14:35:43 == This is a request to backport upstream cpuidle bugfix for a memory corruption d52356e7f48e powerpc: fix memory corruption by pnv_alloc_idle_core_states Space allocated for paca is based off nr_cpu_ids, but pnv_alloc_idle_core_states() iterates paca with cpu_nr_cores()*threads_per_core, which is using NR_CPUS. This causes pnv_alloc_idle_core_states() to write over memory, which is outside of paca array and may later lead to various panics. Fixes: 7cba160ad789 (powernv/cpuidle: Redesign idle states management) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1442878] Re: Backport upstream bugfix in cpuidle to fix memory corruption
This was already applied in Vivid. $ git describe --contains 38fc1ab8c74ff9de5f779be9a985d0d9871458f3 Ubuntu-3.19.0-14.14~4 ** Changed in: linux (Ubuntu) Status: In Progress = Fix Committed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1442878 Title: Backport upstream bugfix in cpuidle to fix memory corruption Status in linux package in Ubuntu: Fix Committed Bug description: == Comment: #0 - Shilpasri G. Bhat shigb...@in.ibm.com - 2015-04-10 14:35:43 == This is a request to backport upstream cpuidle bugfix for a memory corruption d52356e7f48e powerpc: fix memory corruption by pnv_alloc_idle_core_states Space allocated for paca is based off nr_cpu_ids, but pnv_alloc_idle_core_states() iterates paca with cpu_nr_cores()*threads_per_core, which is using NR_CPUS. This causes pnv_alloc_idle_core_states() to write over memory, which is outside of paca array and may later lead to various panics. Fixes: 7cba160ad789 (powernv/cpuidle: Redesign idle states management) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1442878] Re: Backport upstream bugfix in cpuidle to fix memory corruption
** Changed in: linux (Ubuntu) Importance: Undecided = High ** Changed in: linux (Ubuntu) Status: Confirmed = Triaged ** Tags added: cherry-pick -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1442878 Title: Backport upstream bugfix in cpuidle to fix memory corruption Status in linux package in Ubuntu: Triaged Bug description: == Comment: #0 - Shilpasri G. Bhat shigb...@in.ibm.com - 2015-04-10 14:35:43 == This is a request to backport upstream cpuidle bugfix for a memory corruption d52356e7f48e powerpc: fix memory corruption by pnv_alloc_idle_core_states Space allocated for paca is based off nr_cpu_ids, but pnv_alloc_idle_core_states() iterates paca with cpu_nr_cores()*threads_per_core, which is using NR_CPUS. This causes pnv_alloc_idle_core_states() to write over memory, which is outside of paca array and may later lead to various panics. Fixes: 7cba160ad789 (powernv/cpuidle: Redesign idle states management) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1442878] Re: Backport upstream bugfix in cpuidle to fix memory corruption
** Tags removed: targetmilestone-inin--- ** Tags added: targetmilestone-inin1504 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1442878 Title: Backport upstream bugfix in cpuidle to fix memory corruption Status in linux package in Ubuntu: Confirmed Bug description: == Comment: #0 - Shilpasri G. Bhat shigb...@in.ibm.com - 2015-04-10 14:35:43 == This is a request to backport upstream cpuidle bugfix for a memory corruption d52356e7f48e powerpc: fix memory corruption by pnv_alloc_idle_core_states Space allocated for paca is based off nr_cpu_ids, but pnv_alloc_idle_core_states() iterates paca with cpu_nr_cores()*threads_per_core, which is using NR_CPUS. This causes pnv_alloc_idle_core_states() to write over memory, which is outside of paca array and may later lead to various panics. Fixes: 7cba160ad789 (powernv/cpuidle: Redesign idle states management) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1442878] Re: Backport upstream bugfix in cpuidle to fix memory corruption
** Changed in: ubuntu Status: New = Confirmed ** Package changed: ubuntu = linux (Ubuntu) ** Changed in: linux (Ubuntu) Assignee: (unassigned) = Taco Screen team (taco-screen-team) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1442878 Title: Backport upstream bugfix in cpuidle to fix memory corruption Status in linux package in Ubuntu: Confirmed Bug description: == Comment: #0 - Shilpasri G. Bhat shigb...@in.ibm.com - 2015-04-10 14:35:43 == This is a request to backport upstream cpuidle bugfix for a memory corruption d52356e7f48e powerpc: fix memory corruption by pnv_alloc_idle_core_states Space allocated for paca is based off nr_cpu_ids, but pnv_alloc_idle_core_states() iterates paca with cpu_nr_cores()*threads_per_core, which is using NR_CPUS. This causes pnv_alloc_idle_core_states() to write over memory, which is outside of paca array and may later lead to various panics. Fixes: 7cba160ad789 (powernv/cpuidle: Redesign idle states management) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442878/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
