The patch titled
acerhdf: driver didn't verify the pointers in which it got product information
has been added to the -mm tree. Its filename is
acerhdf-driver-didnt-verify-the-pointers-in-which-it-got-product-information.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://userweb.kernel.org/~akpm/stuff/added-to-mm.txt to find
out what to do about this
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: acerhdf: driver didn't verify the pointers in which it got product information
From: Rahul Chaturvedi <rkc@xxxxxxxxxxxx>
Driver didn't verify the pointers in which it got product information back
from DMI; on QEMU one of the pointers came back null, which made the
driver crash and subsequently caused a kernel panic.
Signed-off-by: Rahul Chaturvedi <rkc@xxxxxxxxxxxx>
Signed-off-by: Peter Feuerer <peter@xxxxxxxx>
Cc: Borislav Petkov <petkovbb@xxxxxxxxx>
Cc: Andreas Mohr <andi@xxxxxxxx>
Cc: Len Brown <lenb@xxxxxxxxxx>
Cc: Matthew Garrett <mjg@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/platform/x86/acerhdf.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN drivers/platform/x86/acerhdf.c~acerhdf-driver-didnt-verify-the-pointers-in-which-it-got-product-information drivers/platform/x86/acerhdf.c
--- a/drivers/platform/x86/acerhdf.c~acerhdf-driver-didnt-verify-the-pointers-in-which-it-got-product-information
+++ a/drivers/platform/x86/acerhdf.c
@@ -524,6 +524,10 @@ static int acerhdf_check_hardware(void)
version = dmi_get_system_info(DMI_BIOS_VERSION);
product = dmi_get_system_info(DMI_PRODUCT_NAME);
+ if (!vendor || !version || !product) {
+ pr_err("error getting hardware information\n");
+ return -EINVAL;
+ }
pr_info("Acer Aspire One Fan driver, v.%s\n", DRV_VER);
_
Patches currently in -mm which might be from rkc@xxxxxxxxxxxx are
acerhdf-driver-didnt-verify-the-pointers-in-which-it-got-product-information.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
