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c1ccaf8a0e
There was an error in the logic that stored the parsed BLS snippets in the sorted linked list that is used to populate the GRUB boot menu entries. Also add a fix found by coverity scan about a possible undefined behaviour due grub_efi_status_t having the wrong type. Resolves: rhbz#1691232 Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
76 lines
2.6 KiB
Diff
76 lines
2.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Javier Martinez Canillas <javierm@redhat.com>
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Date: Fri, 22 Mar 2019 11:14:26 +0100
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Subject: [PATCH] blscfg: don't use grub_list_t and the GRUB_AS_LIST() macro
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We are not using GRUB's list functions anyways since we want to add new
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items in the middle ot the list but GRUB's grub_list_push() only allows
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to add new items at the beginning of the list. So don't use grub_list_t
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and GRUB_AS_LIST() macro and just reference struct bls_entry * directly.
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We can't change GRUB lists API because we want the blscfg module to not
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need external symbols so it can be updated without updating GRUB's core.
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This also solves a bug where the struct bls_entry .next field wasn't set
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correctly which caused some entries to not be populated in the grub menu.
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Resolves: rhbz#1691232
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Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
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---
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grub-core/commands/blscfg.c | 10 +++++-----
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include/grub/menu.h | 2 +-
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2 files changed, 6 insertions(+), 6 deletions(-)
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diff --git a/grub-core/commands/blscfg.c b/grub-core/commands/blscfg.c
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index 5635066e3eb..bb93b7f4904 100644
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--- a/grub-core/commands/blscfg.c
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+++ b/grub-core/commands/blscfg.c
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@@ -350,13 +350,13 @@ static int bls_cmp(const struct bls_entry *e0, const struct bls_entry *e1)
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return r;
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}
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-static void list_add_tail(grub_list_t head, grub_list_t item)
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+static void list_add_tail(struct bls_entry *head, struct bls_entry *item)
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{
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item->next = head;
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if (head->prev)
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- (*head->prev)->next = item;
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+ head->prev->next = item;
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item->prev = head->prev;
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- head->prev = &item;
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+ head->prev = item;
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}
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static int bls_add_entry(struct bls_entry *entry)
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@@ -378,7 +378,7 @@ static int bls_add_entry(struct bls_entry *entry)
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if (rc == 1) {
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grub_dprintf ("blscfg", "Add entry with id \"%s\"\n", entry->filename);
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- list_add_tail (GRUB_AS_LIST (e), GRUB_AS_LIST (entry));
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+ list_add_tail (e, entry);
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if (e == entries) {
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entries = entry;
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entry->prev = NULL;
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@@ -391,7 +391,7 @@ static int bls_add_entry(struct bls_entry *entry)
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if (last) {
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grub_dprintf ("blscfg", "Add entry with id \"%s\"\n", entry->filename);
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last->next = entry;
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- entry->prev = &last;
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+ entry->prev = last;
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}
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return 0;
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diff --git a/include/grub/menu.h b/include/grub/menu.h
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index eea493f74b1..0acdc2aa6bf 100644
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--- a/include/grub/menu.h
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+++ b/include/grub/menu.h
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@@ -23,7 +23,7 @@
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struct bls_entry
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{
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struct bls_entry *next;
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- struct bls_entry **prev;
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+ struct bls_entry *prev;
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struct keyval **keyvals;
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int nkeyvals;
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char *filename;
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