Upstream 4.4.110 commit 20cbe9a3aa2e was back ported to Xenial as commit
f8365429a3dc1. However, the backport failed to remove a kfree(), which
the original patch did:
@@ -381,7 +415,6 @@ static void release_ds_buffer(int cpu)
return;
per_cpu(cpu_hw_events, cpu).ds = NULL;
- kfree(ds);
}
I'm building a Xenial test kernel now with the kfree removed. I will
post it shortly.
** Changed in: linux (Ubuntu)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
** Also affects: linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: New => In Progress
** Changed in: linux (Ubuntu Xenial)
Status: New => In Progress
** Changed in: linux (Ubuntu Xenial)
Importance: Undecided => Critical
** Changed in: linux (Ubuntu Xenial)
Assignee: (unassigned) => Joseph Salisbury (jsalisbury)
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https://bugs.launchpad.net/bugs/1741934
Title:
Kernel panic with xenial 4.4 stack (4.4.0-108.131, Candidate kernels
for PTI fix)
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