diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2019-11-12 12:22:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-05 16:03:39 +0300 |
| commit | f97f40aa9acad80851890015661c0995467c71b1 (patch) | |
| tree | 6434243a52aa0a1b38912df1151e3e082f83bc2e | |
| parent | 299ec5f621f9668b7a84fbe7e16b9176af22212d (diff) | |
| download | linux-f97f40aa9acad80851890015661c0995467c71b1.tar.xz | |
media: gspca: zero usb_buf
commit de89d0864f66c2a1b75becfdd6bf3793c07ce870 upstream.
Allocate gspca_dev->usb_buf with kzalloc instead of kmalloc to
ensure it is property zeroed. This fixes various syzbot errors
about uninitialized data.
Syzbot links:
https://syzkaller.appspot.com/bug?extid=32310fc2aea76898d074
https://syzkaller.appspot.com/bug?extid=99706d6390be1ac542a2
https://syzkaller.appspot.com/bug?extid=64437af5c781a7f0e08e
Reported-and-tested-by: syzbot+32310fc2aea76898d074@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+99706d6390be1ac542a2@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+64437af5c781a7f0e08e@syzkaller.appspotmail.com
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/media/usb/gspca/gspca.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c index af5cd8213e8b..3733c15c753e 100644 --- a/drivers/media/usb/gspca/gspca.c +++ b/drivers/media/usb/gspca/gspca.c @@ -2028,7 +2028,7 @@ int gspca_dev_probe2(struct usb_interface *intf, pr_err("couldn't kzalloc gspca struct\n"); return -ENOMEM; } - gspca_dev->usb_buf = kmalloc(USB_BUF_SZ, GFP_KERNEL); + gspca_dev->usb_buf = kzalloc(USB_BUF_SZ, GFP_KERNEL); if (!gspca_dev->usb_buf) { pr_err("out of memory\n"); ret = -ENOMEM; |