On Mon, Apr 23, 2018 at 10:49:12AM -0700, Dmitry Torokhov wrote:

On Sun, Apr 22, 2018 at 7:02 PM, syzbot
[off-list ref] wrote:

quoted

Hello,

syzbot hit the following crash on upstream commit
285848b0f4074f04ab606f1e5dca296482033d54 (Sun Apr 22 04:20:48 2018 +0000)
Merge tag 'random_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
syzbot dashboard link: https://syzkaller.appspot.com/bug?extid=e1670f554caa60fb147b

Ted,

input_add_randomness() (that ends up calling crng_reseed() and the new
numa_crng_init()) is called (and has been called ever since inception)
from an interrupt context and thus may not sleep. The following commit
breaks this:

Fixed by: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1672186.html

Will be pushed to Linux shortly.

						- Ted