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* grub-core/loader/i386/linux.c (grub_cmd_linux): Avoid accessing

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kh.loadflags on pre-2.00 kernels.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2012-04-11 22:40:20 +02:00
parent 3c491b479c
commit 9bab65c49d
2 changed files with 12 additions and 7 deletions
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14
grub-core/loader/i386/linux.c
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@ -700,9 +700,12 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
goto fail;
}
if (! (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL))
/* FIXME: 2.03 is not always good enough (Linux 2.4 can be 2.03 and
still not support 32-bit boot. */
if (lh.header != grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE)
|| grub_le_to_cpu16 (lh.version) < 0x0203)
{
grub_error (GRUB_ERR_BAD_OS, "zImage doesn't support 32-bit boot"
grub_error (GRUB_ERR_BAD_OS, "version too old for 32-bit boot"
#ifdef GRUB_MACHINE_PCBIOS
" (try with `linux16')"
#endif
@ -710,12 +713,9 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
goto fail;
}
/* FIXME: 2.03 is not always good enough (Linux 2.4 can be 2.03 and
still not support 32-bit boot. */
if (lh.header != grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE)
|| grub_le_to_cpu16 (lh.version) < 0x0203)
if (! (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL))
{
grub_error (GRUB_ERR_BAD_OS, "version too old for 32-bit boot"
grub_error (GRUB_ERR_BAD_OS, "zImage doesn't support 32-bit boot"
#ifdef GRUB_MACHINE_PCBIOS
" (try with `linux16')"
#endif