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(parent: 252f0f9) | patch
ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr
authorLiu Hua <sdu.liu@huawei.com>
Thu, 27 Mar 2014 05:56:18 +0000 (06:56 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 7 Jun 2014 20:25:34 +0000 (13:25 -0700)
commit4468ae6574c41a73bc3c126b32dfff73538656c7
tree0a400e96ad71cf8cb1165801827397b6b33b5c6btree | snapshot
parent252f0f90820c59870cb566f1718f16708a68857dcommit | diff
ARM: 8012/1: kdump: Avoid overflow when converting pfn to physaddr

commit 8fad87bca7ac9737e413ba5f1656f1114a8c314d upstream.

When we configure CONFIG_ARM_LPAE=y, pfn << PAGE_SHIFT will
overflow if pfn >= 0x100000 in copy_oldmem_page.
So use __pfn_to_phys for converting.

Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/kernel/crash_dump.c diff | blob | history
Domain: System / Kernel;