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| author | Linn Crosetto <linn@hp.com> | 2013-08-14 01:46:41 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-18 18:45:48 +0400 |
| commit | 954acd2b6df732230608d260779ef6d545534929 (patch) | |
| tree | 5a46fc2d9d42dcae16b997c5984a6ec165111b99 /Documentation/flexible-arrays.txt | |
| parent | 3232569ecd21ad181bd070acdb27ac5ccd54494c (diff) | |
| download | linux-954acd2b6df732230608d260779ef6d545534929.tar.xz | |
x86: avoid remapping data in parse_setup_data()
commit 30e46b574a1db7d14404e52dca8e1aa5f5155fd2 upstream.
Type SETUP_PCI, added by setup_efi_pci(), may advertise a ROM size
larger than early_memremap() is able to handle, which is currently
limited to 256kB. If this occurs it leads to a NULL dereference in
parse_setup_data().
To avoid this, remap the setup_data header and allow parsing functions
for individual types to handle their own data remapping.
Signed-off-by: Linn Crosetto <linn@hp.com>
Link: http://lkml.kernel.org/r/1376430401-67445-1-git-send-email-linn@hp.com
Acked-by: Yinghai Lu <yinghai@kernel.org>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/flexible-arrays.txt')
0 files changed, 0 insertions, 0 deletions