diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-1073.patch')
-rw-r--r-- | meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-1073.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-1073.patch b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-1073.patch new file mode 100644 index 000000000..fbad7dd75 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-kernel/linux/linux-aspeed/CVE-2023-1073.patch @@ -0,0 +1,34 @@ +From b12fece4c64857e5fab4290bf01b2e0317a88456 Mon Sep 17 00:00:00 2001 +From: Pietro Borrello <borrello@diag.uniroma1.it> +Date: Mon, 16 Jan 2023 11:11:24 +0000 +Subject: [PATCH] HID: check empty report_list in hid_validate_values() + +Add a check for empty report_list in hid_validate_values(). +The missing check causes a type confusion when issuing a list_entry() +on an empty report_list. +The problem is caused by the assumption that the device must +have valid report_list. While this will be true for all normal HID +devices, a suitably malicious device can violate the assumption. + +Fixes: 1b15d2e5b807 ("HID: core: fix validation of report id 0") +Signed-off-by: Pietro Borrello <borrello@diag.uniroma1.it> +Signed-off-by: Jiri Kosina <jkosina@suse.cz> +--- + drivers/hid/hid-core.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c +index bd47628da6be0d..3e1803592bd4a2 100644 +--- a/drivers/hid/hid-core.c ++++ b/drivers/hid/hid-core.c +@@ -993,8 +993,8 @@ struct hid_report *hid_validate_values(struct hid_device *hid, + * Validating on id 0 means we should examine the first + * report in the list. + */ +- report = list_entry( +- hid->report_enum[type].report_list.next, ++ report = list_first_entry_or_null( ++ &hid->report_enum[type].report_list, + struct hid_report, list); + } else { + report = hid->report_enum[type].report_id_hash[id]; |