Piteball/android_kernel_google_msm
1
0
Fork 0
mirror of https://github.com/followmsi/android_kernel_google_msm.git synced 2024-11-06 23:17:41 +00:00
Code Issues Projects Releases Wiki Activity

USB: resizing usbmon binary interface buffer causes protection faults

Browse source 
Enlarging the buffer size via the MON_IOCT_RING_SIZE ioctl causes
general protection faults. It appears the culprit is an incorrect
argument to mon_free_buff: instead of passing the size of the current
buffer being freed, the size of the new buffer is passed.

Use the correct size argument to mon_free_buff when changing the size of
the buffer.

Signed-off-by: Steven Robertson <steven@strobe.cc>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Steven Robertson 2010-07-21 16:38:44 -04:00 committed by Greg Kroah-Hartman
parent 92eb2a5e53
commit 33d973ad88
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/usb/mon/mon_bin.c
View file

@ -1004,7 +1004,7 @@ static long mon_bin_ioctl(struct file *file, unsigned int cmd, unsigned long arg
mutex_lock(&rp->fetch_lock);
spin_lock_irqsave(&rp->b_lock, flags);
mon_free_buff(rp->b_vec, size/CHUNK_SIZE);
mon_free_buff(rp->b_vec, rp->b_size/CHUNK_SIZE);
kfree(rp->b_vec);
rp->b_vec = vec;
rp->b_size = size;