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ksplice: Clear garbage data on the kernel stack when handling signals
authorSasha Levin <sasha.levin@oracle.com>
Thu, 15 Jan 2015 01:41:18 +0000 (20:41 -0500)
committerSantosh Shilimkar <santosh.shilimkar@oracle.com>
Mon, 29 Jun 2015 15:36:55 +0000 (08:36 -0700)
commitb0363ac87062e42849d0ec3d9966495694aa6120
tree9ec9c0c8a7d202d0588366749aa992e3ad85b6f9tree
parent0cf59aa5f61f6df3913edabf05e59d3c507809afcommit | diff
ksplice: Clear garbage data on the kernel stack when handling signals

The garbage data can give false-positives for the Ksplice safety checks
making it difficult (or sometimes impossible) to apply the rebootless
updates.  Clear the garbage with 0-words to avoid this.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
arch/x86/kernel/entry_32.S diff | blob | history
arch/x86/kernel/entry_64.S diff | blob | history
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