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efi: Fix several memory leaks of UEFI handles

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Fix possible and absolute memory leaks of "handles"
returned by grub_efi_locate_handle() using grub_malloc().

Signed-off-by: Khalid Ali <khaliidcaliy@gmail.com>
Reviewed-by: Sudhakar Kuppusamy <sudhakar@linux.ibm.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Khalid Ali 2025-12-15 16:59:46 +00:00 committed by Daniel Kiper
parent c477a95519
commit 0f0899c329
4 changed files with 6 additions and 3 deletions
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1
grub-core/commands/efi/lsefi.c
View File

@ -129,6 +129,7 @@ grub_cmd_lsefi (grub_command_t cmd __attribute__ ((unused)),
}
grub_free (handles);
return 0;
}

2
grub-core/commands/efi/tpm.c
View File

@ -113,6 +113,7 @@ grub_tpm_handle_find (grub_efi_handle_t *tpm_handle,
grub_tpm_version = 1;
*protocol_version = 1;
grub_dprintf ("tpm", "TPM handle Found, version: 1\n");
grub_free (handles);
return 1;
}
@ -125,6 +126,7 @@ grub_tpm_handle_find (grub_efi_handle_t *tpm_handle,
grub_tpm_version = 2;
*protocol_version = 2;
grub_dprintf ("tpm", "TPM handle Found, version: 2\n");
grub_free (handles);
return 1;
}

4
grub-core/term/efi/serial.c
View File

@ -169,13 +169,13 @@ grub_efiserial_init (void)
port = grub_zalloc (sizeof (*port));
if (!port)
return;
break;
port->name = grub_malloc (sizeof ("efiXXXXXXXXXXXXXXXXXXXX"));
if (!port->name)
{
grub_free (port);
return;
break;
}
grub_snprintf (port->name, sizeof ("efiXXXXXXXXXXXXXXXXXXXX"),
"efi%d", num_serial++);

2
grub-core/video/efi_gop.c
View File

@ -94,7 +94,7 @@ check_protocol (void)
gop_handle = 0;
grub_dprintf ("video", "GOP: no usable mode\n");
grub_free (handles);
return 0;
}