Re: [syzbot] [ext4?] general protection fault in ext4_finish_bio

From: syzbot
Date: Fri Jul 07 2023 - 01:10:28 EST


syzbot has bisected this issue to:

commit b6d972f6898308fbe7e693bf8d44ebfdb1cd2dc4
Author: David Howells <dhowells@xxxxxxxxxx>
Date: Fri Jun 16 11:10:32 2023 +0000

crypto: af_alg/hash: Fix recvmsg() after sendmsg(MSG_MORE)

bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=17e4fa88a80000
start commit: ae230642190a Merge branch 'af_unix-followup-fixes-for-so_p..
git tree: net-next
final oops: https://syzkaller.appspot.com/x/report.txt?x=1414fa88a80000
console output: https://syzkaller.appspot.com/x/log.txt?x=1014fa88a80000
kernel config: https://syzkaller.appspot.com/x/.config?x=c9bf1936936ca698
dashboard link: https://syzkaller.appspot.com/bug?extid=689ec3afb1ef07b766b2
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=136b9d48a80000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10223cb8a80000

Reported-by: syzbot+689ec3afb1ef07b766b2@xxxxxxxxxxxxxxxxxxxxxxxxx
Fixes: b6d972f68983 ("crypto: af_alg/hash: Fix recvmsg() after sendmsg(MSG_MORE)")

For information about bisection process see: https://goo.gl/tpsmEJ#bisection