linux/drivers/firmware/efi
Andrzej Zaborowski 783ee43118 efi-pstore: Fix an overflow on 32-bit builds
In generic_id the long int timestamp is multiplied by 100000 and needs
an explicit cast to u64.

Without that the id in the resulting pstore filename is wrong and
userspace may have problems parsing it, but more importantly files in
pstore can never be deleted and may fill the EFI flash (brick device?).
This happens because when generic pstore code wants to delete a file,
it passes the id to the EFI backend which reinterpretes it and a wrong
variable name is attempted to be deleted.  There's no error message but
after remounting pstore, deleted files would reappear.

Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
2014-06-27 07:30:32 +01:00
..
arm-stub.c efi/arm64: ignore dtb= when UEFI SecureBoot is enabled 2014-04-30 19:57:06 +01:00
cper.c Move cper.c from drivers/acpi/apei to drivers/firmware/efi 2013-10-31 11:27:04 -07:00
efi-pstore.c efi-pstore: Fix an overflow on 32-bit builds 2014-06-27 07:30:32 +01:00
efi-stub-helper.c efi: x86: Handle arbitrary Unicode characters 2014-04-17 12:29:25 +01:00
efi.c efi: Fix compiler warnings (unused, const, type) 2014-06-19 15:03:05 +01:00
efivars.c efivars: Add compatibility code for compat tasks 2014-04-17 13:53:53 +01:00
fdt.c efi: Fix compiler warnings (unused, const, type) 2014-06-19 15:03:05 +01:00
Kconfig efi: add helper function to get UEFI params from FDT 2014-04-30 19:49:46 +01:00
Makefile Linux 3.13-rc7 2014-01-05 12:34:29 +01:00
runtime-map.c efi: Export EFI runtime memory mapping to sysfs 2013-12-21 15:29:36 +00:00
vars.c efivars: Stop passing a struct argument to efivar_validate() 2014-04-17 13:53:43 +01:00