The patch titled
x86: fix buffer overflow in efi_init()
has been added to the -mm tree. Its filename is
x86-fix-buffer-overflow-in-efi_init.patch
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------------------------------------------------------
Subject: x86: fix buffer overflow in efi_init()
From: Roel Kluin <roel.kluin@xxxxxxxxx>
If the vendor name (from c16) can be longer than 100 bytes (or missing a
terminating null), then the null is written past the end of vendor[].
Found with Parfait, http://research.sun.com/projects/parfait/
Signed-off-by: Roel Kluin <roel.kluin@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/kernel/efi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN arch/x86/kernel/efi.c~x86-fix-buffer-overflow-in-efi_init arch/x86/kernel/efi.c
--- a/arch/x86/kernel/efi.c~x86-fix-buffer-overflow-in-efi_init
+++ a/arch/x86/kernel/efi.c
@@ -354,7 +354,7 @@ void __init efi_init(void)
*/
c16 = tmp = early_ioremap(efi.systab->fw_vendor, 2);
if (c16) {
- for (i = 0; i < sizeof(vendor) && *c16; ++i)
+ for (i = 0; i < sizeof(vendor) - 1 && *c16; ++i)
vendor[i] = *c16++;
vendor[i] = '\0';
} else
_
Patches currently in -mm which might be from roel.kluin@xxxxxxxxx are
origin.patch
linux-next.patch
x86-fix-buffer-overflow-in-efi_init.patch
s3c-fix-check-of-index-into-s3c_gpios.patch
stmp3xxx-deallocation-with-negative-index-of-descriptors.patch
dm-strncpy-does-not-null-terminate-string.patch
powerpc-sky-cpu-redundant-or-incorrect-tests-on-unsigned.patch
media-strncpy-does-not-null-terminate-string.patch
ivtv-read-buffer-overflow.patch
siano-read-buffer-overflow.patch
drivers-media-video-bw-qcamc-fix-read-buffer-overflow.patch
stk-webcam-read-buffer-overflow.patch
ipath-strncpy-does-not-null-terminate-string.patch
mips-decrease-size-of-au1xxx_dbdma_pm_regs.patch
irda-fix-read-buffer-overflow.patch
atlx-strncpy-does-not-null-terminate-string.patch
ext4-remove-redundant-test-on-unsigned.patch
ocfs2-keep-index-within-status_map.patch
cyclades-read-buffer-overflow.patch
drivers-scsi-fnic-fnic_scsic-clean-up.patch
ibmmca-buffer-overflow.patch
scsi-eata-fix-buffer-overflow.patch
drivers-scsi-gdthc-fix-buffer-overflow.patch
drivers-scsi-iprh-fix-buffer-overflow.patch
drivers-scsi-u14-34fc-fix-uffer-overflow.patch
libertas-fix-read-outside-array-bounds.patch
libertas-read-buffer-overflow.patch
i915-fix-read-outside-array-bounds.patch
frv-duplicate-output_buffer-of-e03.patch
frv-duplicate-output_buffer-of-e03-checkpatch-fixes.patch
m32r-remove-redundant-tests-on-unsigned.patch
m68k-count-can-reach-51-not-50.patch
m68k-cnt-reaches-1-not-0.patch
dme1737-keep-index-within-pwm_config.patch
ncpfs-read-buffer-overflow.patch
smbfs-read-buffer-overflow.patch
platinumfb-misplaced-parenthesis.patch
sisfb-read-buffer-overflow.patch
documentation-strncpy-does-not-null-terminate-string.patch
adfs-remove-redundant-test-on-unsigned.patch
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