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33 lines
1 KiB
Diff
33 lines
1 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Mon, 8 Jan 2024 16:03:54 -0500
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Subject: [PATCH] power: Fix use after free in get_slave_from_dm()
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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grub-core/osdep/linux/ofpath.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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diff --git a/grub-core/osdep/linux/ofpath.c b/grub-core/osdep/linux/ofpath.c
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index cc849d9c94c..72772c87a66 100644
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--- a/grub-core/osdep/linux/ofpath.c
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+++ b/grub-core/osdep/linux/ofpath.c
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@@ -775,6 +775,8 @@ get_slave_from_dm(const char * device){
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device_path = grub_xasprintf ("/sys/block/%s/slaves", curr_device);
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dp = opendir(device_path);
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+ if (dp == NULL)
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+ grub_util_warn (_("cannot open directory `%s'"), device_path);
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free(device_path);
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if (dp != NULL)
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@@ -800,8 +802,6 @@ get_slave_from_dm(const char * device){
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}
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closedir (dp);
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}
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- else
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- grub_util_warn (_("cannot open directory `%s'"), device_path);
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}
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free (directory);
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