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Red Hat Bugzilla – Attachment 653399 Details for
Bug 873629
Malformed variable content during system installation
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[patch]
Zero out 31st bit of attributes when reading from sysfs to make sure we don't get any invalid looking stuff from Apple EFI firmware
efibootmgr-0.5.4-ignore-bad-attribute.patch (text/plain), 852 bytes, created by
Alex Murray
on 2012-11-28 09:56:34 UTC
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Description:
Zero out 31st bit of attributes when reading from sysfs to make sure we don't get any invalid looking stuff from Apple EFI firmware
Filename:
MIME Type:
Creator:
Alex Murray
Created:
2012-11-28 09:56:34 UTC
Size:
852 bytes
patch
obsolete
>From b761e0d75fb5c755a5133b6632870d1f903a20eb Mon Sep 17 00:00:00 2001 >From: Alex Murray <murray.alex@gmail.com> >Date: Wed, 28 Nov 2012 04:17:28 -0500 >Subject: [PATCH] Ignore bad attribute in latest Apple EFI firmware > >--- > src/lib/efivars_sysfs.c | 4 ++++ > 1 file changed, 4 insertions(+) > >diff --git a/src/lib/efivars_sysfs.c b/src/lib/efivars_sysfs.c >index 182c70f..ea87325 100644 >--- a/src/lib/efivars_sysfs.c >+++ b/src/lib/efivars_sysfs.c >@@ -55,6 +55,10 @@ sysfs_read_variable(const char *name, efi_variable_t *var) > return EFI_INVALID_PARAMETER; > } > close(fd); >+ /* latest apple firmware sets high bit which appears invalid >+ to the linux kernel if we write it back so lets zero it out >+ if it is set since it would be invalid to set it anyway */ >+ var->Attributes = var->Attributes & ~(1 << 31); > return var->Status; > } > >-- >1.8.0 >
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bug 873629
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