syzbot


KASAN: use-after-free Read in addr_handler
Status: fixed on 2020/05/10 10:42
Reported-by: syzbot+b358909d8d01556b790b@syzkaller.appspotmail.com
Fix commit: 7c11910783a1 RDMA/ucma: Put a lock around every call to the rdma_cm layer
First crash: 1091d, last: 609d

Cause bisection: introduced by (bisect log) :
commit 4f4c867c91e644fc9d461c8c5cf2f09d6d5bcac2
Author: Miquel Raynal <miquel.raynal@bootlin.com>
Date: Tue Oct 2 08:54:16 2018 +0000

  irqchip/irq-mvebu-icu: Support ICU subnodes

Crash: WARNING: ODEBUG bug in netdev_freemem (log)
Repro: syz .config
similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in addr_handler (5) 1 72d 68d 0/22 closed as dup on 2021/10/01 13:34
upstream KASAN: use-after-free Read in addr_handler (4) 1 88d 84d 21/22 closed as dup on 2021/09/15 19:36
upstream KASAN: use-after-free Read in addr_handler (2) 2 503d 546d 17/22 fixed on 2020/09/16 22:51
upstream KASAN: use-after-free Read in addr_handler (3) 1 229d 226d 0/22 auto-closed as invalid on 2021/07/22 15:33

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/01/28 02:33 upstream b0be0eff1a5a 59f36113 .config log report syz
ci-upstream-kasan-gce-root 2019/12/18 22:46 upstream 80a0c2e511a9 59f36113 .config log report syz
ci-upstream-kasan-gce 2019/11/09 21:09 upstream 00aff6836241 59f36113 .config log report syz
ci-upstream-kasan-gce 2019/08/23 22:52 upstream a3b22b9f11d9 59f36113 .config log report syz
Crashes (12):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2019/02/19 05:11 upstream a3b22b9f11d9 59f36113 .config log report syz
ci-upstream-kasan-gce 2019/02/19 04:08 upstream a3b22b9f11d9 59f36113 .config log report syz
ci-upstream-kasan-gce-386 2019/02/19 14:17 upstream b5372fe5dc84 59f36113 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2019/02/19 12:36 linux-next 43dc36c945ef 59f36113 .config log report syz
ci-upstream-kasan-gce 2020/04/08 12:23 upstream f5e94d10e4c4 db9bcd4b .config log report
ci-upstream-kasan-gce-selinux-root 2019/12/19 05:00 upstream 2187f215ebaa 79b211f7 .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/28 20:45 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-kasan-gce 2019/02/19 03:22 upstream a3b22b9f11d9 59f36113 .config log report
ci-upstream-kasan-gce-smack-root 2019/01/02 19:09 upstream 8e143b90e4d4 f0491811 .config log report
ci-upstream-kasan-gce-386 2019/01/23 19:15 upstream 333478a7eb21 7cf3249c .config log report
ci-upstream-kasan-gce-386 2018/12/13 10:54 upstream f5d582777bcb f3d9d594 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/07/24 22:23 linux-next 9e6dfe8045f8 32329ceb .config log report