Re: "UBSAN: shift-out-of-bounds in mceusb_dev_recv" should share the same root cause with "UBSAN: shift-out-of-bounds in mceusb_dev_printdata"

2021-01-13 Thread 慕冬亮
On Wed, Jan 13, 2021 at 3:51 PM Greg KH wrote: > > On Wed, Jan 13, 2021 at 01:04:44PM +0800, 慕冬亮 wrote: > > Hi developers, > > > > I found that "UBSAN: shift-out-of-bounds in mceusb_dev_recv" and > > "UBSAN: shift-out-of-bounds in mceusb_dev_pr

Re: "UBSAN: shift-out-of-bounds in mceusb_dev_recv" should share the same root cause with "UBSAN: shift-out-of-bounds in mceusb_dev_printdata"

2021-01-13 Thread Dan Carpenter
On Wed, Jan 13, 2021 at 01:04:44PM +0800, 慕冬亮 wrote: > Hi developers, > > I found that "UBSAN: shift-out-of-bounds in mceusb_dev_recv" and > "UBSAN: shift-out-of-bounds in mceusb_dev_printdata" should share the > same root cause. > The reason is that

Re: "UBSAN: shift-out-of-bounds in mceusb_dev_recv" should share the same root cause with "UBSAN: shift-out-of-bounds in mceusb_dev_printdata"

2021-01-12 Thread Greg KH
On Wed, Jan 13, 2021 at 01:04:44PM +0800, 慕冬亮 wrote: > Hi developers, > > I found that "UBSAN: shift-out-of-bounds in mceusb_dev_recv" and > "UBSAN: shift-out-of-bounds in mceusb_dev_printdata" should share the > same root cause. > The reason is that

"UBSAN: shift-out-of-bounds in mceusb_dev_recv" should share the same root cause with "UBSAN: shift-out-of-bounds in mceusb_dev_printdata"

2021-01-12 Thread 慕冬亮
Hi developers, I found that "UBSAN: shift-out-of-bounds in mceusb_dev_recv" and "UBSAN: shift-out-of-bounds in mceusb_dev_printdata" should share the same root cause. The reason is that the PoCs after minimization has a high similarity with the other. And their stack trace

UBSAN: shift-out-of-bounds in mceusb_dev_printdata

2020-12-16 Thread syzbot
Hello, syzbot found the following issue on: HEAD commit:5e60366d Merge tag 'fallthrough-fixes-clang-5.11-rc1' of g.. git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=11b1a46b50 kernel conf