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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Date: Fri, 26 Jun 2020 10:51:43 -0400
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Subject: [PATCH] multiboot2: Fix memory leak if grub_create_loader_cmdline()
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fails
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Fixes: CID 292468
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Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
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Upstream-commit-id: cd6760b6289
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---
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grub-core/loader/multiboot_mbi2.c | 11 +++++++++--
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1 file changed, 9 insertions(+), 2 deletions(-)
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diff --git a/grub-core/loader/multiboot_mbi2.c b/grub-core/loader/multiboot_mbi2.c
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index 54078455e..872dcd42e 100644
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--- a/grub-core/loader/multiboot_mbi2.c
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+++ b/grub-core/loader/multiboot_mbi2.c
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@@ -1089,6 +1089,7 @@ grub_multiboot2_add_module (grub_addr_t start, grub_size_t size,
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{
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struct module *newmod;
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grub_size_t len = 0;
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+ grub_err_t err = 0;
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newmod = grub_malloc (sizeof (*newmod));
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if (!newmod)
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@@ -1107,8 +1108,14 @@ grub_multiboot2_add_module (grub_addr_t start, grub_size_t size,
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newmod->cmdline_size = len;
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total_modcmd += ALIGN_UP (len, MULTIBOOT_TAG_ALIGN);
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- grub_create_loader_cmdline (argc, argv, newmod->cmdline,
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- newmod->cmdline_size);
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+ err = grub_create_loader_cmdline (argc, argv, newmod->cmdline,
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+ newmod->cmdline_size);
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+ if (err)
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+ {
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+ grub_free (newmod->cmdline);
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+ grub_free (newmod);
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+ return err;
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+ }
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if (modules_last)
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modules_last->next = newmod;
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