Re: KASAN: use-after-free Read in crypto_gcm_init_common

[syzbot]

syzbot has bisected this bug to:

commit 428490e38b2e352812e0b765d8bceafab0ec441d
Author: Jason A. Donenfeld <Jason@xxxxxxxxx>
Date:   Wed Sep 20 14:58:39 2017 +0000

    security/keys: rewrite all of big_key crypto

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=160eabcf200000
start commit:   428490e3 security/keys: rewrite all of big_key crypto
git tree:       upstream
final crash:    https://syzkaller.appspot.com/x/report.txt?x=150eabcf200000
console output: https://syzkaller.appspot.com/x/log.txt?x=110eabcf200000
kernel config:  https://syzkaller.appspot.com/x/.config?x=9384ecb1c973baed
dashboard link: https://syzkaller.appspot.com/bug?extid=e736399a2c4054612307
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=17902f5b400000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=111377e5400000

Reported-by: syzbot+e736399a2c4054612307@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: 428490e38b2e ("security/keys: rewrite all of big_key crypto")