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loader/efi/linux: Unload previous Linux kernel/initrd before updating kernel size

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Unload previous Linux kernel/initrd before updating the global variable
kernel_size. Otherwise the previous Linux kernel gets deallocated with
the kernel_size of the Linux kernel that is being currently loaded.

Signed-off-by: Adriano Cordova <adriano.cordova@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Adriano Cordova 2025-06-18 11:38:14 -04:00 committed by Daniel Kiper
parent 249db11d8f
commit de80acf368
1 changed files with 2 additions and 2 deletions
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4
grub-core/loader/efi/linux.c
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@ -492,6 +492,8 @@ grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
if (!file)
goto fail;
grub_loader_unset();
kernel_size = grub_file_size (file);
if (grub_arch_efi_linux_load_image_header (file, &lh) != GRUB_ERR_NONE)
@ -514,8 +516,6 @@ fallback:
}
#endif
grub_loader_unset();
grub_dprintf ("linux", "kernel file size: %lld\n", (long long) kernel_size);
kernel_addr = grub_efi_allocate_any_pages (GRUB_EFI_BYTES_TO_PAGES (kernel_size));
grub_dprintf ("linux", "kernel numpages: %lld\n",