diff options
| author | Linn Crosetto <linn@hp.com> | 2013-08-14 01:46:41 +0400 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-08-14 10:29:19 +0400 |
| commit | 30e46b574a1db7d14404e52dca8e1aa5f5155fd2 (patch) | |
| tree | 830c013b0e1bc37b77590df2998e664c89974571 /arch/x86/kernel/vsyscall_emu_64.S | |
| parent | 2449f343e4adc778de1c3d45b5aa14fe788663f5 (diff) | |
| download | linux-30e46b574a1db7d14404e52dca8e1aa5f5155fd2.tar.xz | |
x86: avoid remapping data in parse_setup_data()
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>
Diffstat (limited to 'arch/x86/kernel/vsyscall_emu_64.S')
0 files changed, 0 insertions, 0 deletions