diff options
Diffstat (limited to 'meta/recipes-bsp/grub/files/CVE-2020-27779_4.patch')
| -rw-r--r-- | meta/recipes-bsp/grub/files/CVE-2020-27779_4.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/meta/recipes-bsp/grub/files/CVE-2020-27779_4.patch b/meta/recipes-bsp/grub/files/CVE-2020-27779_4.patch new file mode 100644 index 0000000000..a756f8d1cf --- /dev/null +++ b/meta/recipes-bsp/grub/files/CVE-2020-27779_4.patch @@ -0,0 +1,35 @@ +From 7949671de268ba3116d113778e5d770574e9f9e3 Mon Sep 17 00:00:00 2001 +From: Javier Martinez Canillas <javierm@redhat.com> +Date: Wed, 24 Feb 2021 12:59:29 +0100 +Subject: [PATCH] commands/hdparm: Restrict hdparm command when locked down + +The command can be used to get/set ATA disk parameters. Some of these can +be dangerous since change the disk behavior. Restrict it when locked down. + +Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> +Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com> + +Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/grub.git/commit/?id=5c97492a29c6063567b65ed1a069f5e6f4e211f0] +CVE: CVE-2020-27779 +Signed-off-by: Marta Rybczynska <marta.rybczynska@huawei.com> +--- + grub-core/commands/hdparm.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +diff --git a/grub-core/commands/hdparm.c b/grub-core/commands/hdparm.c +index d3fa966..2e2319e 100644 +--- a/grub-core/commands/hdparm.c ++++ b/grub-core/commands/hdparm.c +@@ -436,9 +436,9 @@ static grub_extcmd_t cmd; + + GRUB_MOD_INIT(hdparm) + { +- cmd = grub_register_extcmd ("hdparm", grub_cmd_hdparm, 0, +- N_("[OPTIONS] DISK"), +- N_("Get/set ATA disk parameters."), options); ++ cmd = grub_register_extcmd_lockdown ("hdparm", grub_cmd_hdparm, 0, ++ N_("[OPTIONS] DISK"), ++ N_("Get/set ATA disk parameters."), options); + } + + GRUB_MOD_FINI(hdparm) |