Subject: + fs-compat_ioctlc-fix-an-underflow-issue-harmless.patch added to -mm tree
To: dan.carpenter@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 16 Dec 2013 11:55:52 -0800
The patch titled
Subject: fs/compat_ioctl.c: fix an underflow issue (harmless)
has been added to the -mm tree. Its filename is
fs-compat_ioctlc-fix-an-underflow-issue-harmless.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/fs-compat_ioctlc-fix-an-underflow-issue-harmless.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/fs-compat_ioctlc-fix-an-underflow-issue-harmless.patch
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From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Subject: fs/compat_ioctl.c: fix an underflow issue (harmless)
We cap "nmsgs" at I2C_RDRW_IOCTL_MAX_MSGS (42) but the current code allows
negative values. It's harmless but it makes my static checker upset so
I've made nsmgs unsigned.
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/compat_ioctl.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff -puN fs/compat_ioctl.c~fs-compat_ioctlc-fix-an-underflow-issue-harmless fs/compat_ioctl.c
--- a/fs/compat_ioctl.c~fs-compat_ioctlc-fix-an-underflow-issue-harmless
+++ a/fs/compat_ioctl.c
@@ -680,7 +680,8 @@ static int do_i2c_rdwr_ioctl(unsigned in
struct i2c_msg __user *tmsgs;
struct i2c_msg32 __user *umsgs;
compat_caddr_t datap;
- int nmsgs, i;
+ u32 nmsgs;
+ int i;
if (get_user(nmsgs, &udata->nmsgs))
return -EFAULT;
_
Patches currently in -mm which might be from dan.carpenter@xxxxxxxxxx are
origin.patch
dma-debug-enhance-dma_debug_device_change-to-check-for-mapping-errors-fix.patch
video-mmp-delete-a-stray-mutex_unlock.patch
video-mmp-using-plain-integer-as-null-pointer.patch
ocfs2-use-the-new-dlm-operation-callbacks-while-requesting-new-lockspace.patch
drivers-scsi-megaraid-megaraid_mmc-missing-bounds-check-in-mimd_to_kioc.patch
drivers-block-paride-pgc-underflow-bug-in-pg_write.patch
fs-compat_ioctlc-fix-an-underflow-issue-harmless.patch
drivers-mailbox-omap-make-mbox-irq-signed-for-error-handling.patch
checkpatch-warn-only-on-space-before-semicolon-at-end-of-line.patch
linux-next.patch
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