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net: usb: ax88179_178a: initialize local variables before use
commit bd78980be1
upstream.
Use memset to initialize local array in drivers/net/usb/ax88179_178a.c, and
also set a local u16 and u32 variable to 0. Fixes a KMSAN found uninit-value bug
reported by syzbot at:
https://syzkaller.appspot.com/bug?id=00371c73c72f72487c1d0bfe0cc9d00de339d5aa
Reported-by: syzbot+4993e4a0e237f1b53747@syzkaller.appspotmail.com
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
55714a57f3
commit
354520d3ea
1 changed files with 2 additions and 2 deletions
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@ -295,12 +295,12 @@ static int ax88179_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index,
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int ret;
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if (2 == size) {
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u16 buf;
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u16 buf = 0;
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ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
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le16_to_cpus(&buf);
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*((u16 *)data) = buf;
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} else if (4 == size) {
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u32 buf;
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u32 buf = 0;
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ret = __ax88179_read_cmd(dev, cmd, value, index, size, &buf, 0);
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le32_to_cpus(&buf);
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*((u32 *)data) = buf;
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