6eaa34fe07
- Resolves: CVE-2024-45779 CVE-2024-45778 CVE-2025-1118 - Resolves: CVE-2025-0677 CVE-2024-45782 CVE-2025-0690 - Resolves: CVE-2024-45783 CVE-2025-0624 CVE-2024-45776 - Resolves: CVE-2025-0622 CVE-2024-45774 CVE-2024-45775 - Resolves: CVE-2024-45781 CVE-2024-45780 - Resolves: #RHEL-79700 - Resolves: #RHEL-79341 - Resolves: #RHEL-79875 - Resolves: #RHEL-79849 - Resolves: #RHEL-79707 - Resolves: #RHEL-79857 - Resolves: #RHEL-79709 - Resolves: #RHEL-79846 - Resolves: #RHEL-75737 - Resolves: #RHEL-79713 - Resolves: #RHEL-73785 - Resolves: #RHEL-73787 - Resolves: #RHEL-79704 - Resolves: #RHEL-79702 Signed-off-by: Nicolas Frayer <nfrayer@redhat.com>
41 lines
1.2 KiB
Diff
41 lines
1.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
|
|
From: B Horn <b@horn.uk>
|
|
Date: Sun, 12 May 2024 02:47:54 +0100
|
|
Subject: [PATCH] fs/tar: Initialize name in grub_cpio_find_file()
|
|
|
|
It was possible to iterate through grub_cpio_find_file() without
|
|
allocating name and not setting mode to GRUB_ARCHELP_ATTR_END, which
|
|
would cause the uninitialized value for name to be used as an argument
|
|
for canonicalize() in grub_archelp_dir().
|
|
|
|
Reported-by: B Horn <b@horn.uk>
|
|
Signed-off-by: B Horn <b@horn.uk>
|
|
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
|
|
---
|
|
grub-core/fs/tar.c | 5 +++++
|
|
1 file changed, 5 insertions(+)
|
|
|
|
diff --git a/grub-core/fs/tar.c b/grub-core/fs/tar.c
|
|
index c551ed6b5..646bce5eb 100644
|
|
--- a/grub-core/fs/tar.c
|
|
+++ b/grub-core/fs/tar.c
|
|
@@ -78,6 +78,7 @@ grub_cpio_find_file (struct grub_archelp_data *data, char **name,
|
|
int reread = 0, have_longname = 0, have_longlink = 0;
|
|
|
|
data->hofs = data->next_hofs;
|
|
+ *name = NULL;
|
|
|
|
for (reread = 0; reread < 3; reread++)
|
|
{
|
|
@@ -202,6 +203,10 @@ grub_cpio_find_file (struct grub_archelp_data *data, char **name,
|
|
}
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
+
|
|
+ if (*name == NULL)
|
|
+ return grub_error (GRUB_ERR_BAD_FS, "invalid tar archive");
|
|
+
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|