syzbot


KASAN: use-after-free Read in find_match
Status: fixed on 2020/04/15 17:19
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 44bfa9c5e5f0 net: rtnetlink: fix bugs in rtnl_alt_ifname()
First crash: 652d, last: 645d

Cause bisection: introduced by (bisect log) :
commit 36fbf1e52bd3ff8a5cb604955eedfc9350c2e6cc
Author: Jiri Pirko <jiri@mellanox.com>
Date: Mon Sep 30 09:48:16 2019 +0000

  net: rtnetlink: add linkprop commands to add and delete alternative ifnames

Crash: KASAN: use-after-free Read in find_match (log)
Repro: C syz .config

Sample crash report:

Crashes (142):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/02/22 06:25 upstream b0dd1eb220c0 2ffa6679 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/21 14:51 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/21 14:27 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/21 12:48 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/21 12:19 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/21 11:47 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/21 10:52 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce 2020/02/21 02:50 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/21 00:23 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/20 17:39 upstream ca7e1fd1026c 81230308 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/20 15:49 upstream ca7e1fd1026c 81230308 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/20 14:38 upstream ca7e1fd1026c 81230308 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/20 13:58 upstream ca7e1fd1026c 81230308 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/20 01:39 upstream 4b205766d8fc b690a6e3 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/20 00:49 upstream 4b205766d8fc b690a6e3 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/19 22:41 upstream 4b205766d8fc b690a6e3 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/19 22:06 upstream 4b205766d8fc b690a6e3 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/19 14:13 upstream 0a44cac81050 135c18aa .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/19 12:13 upstream 0a44cac81050 135c18aa .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/19 10:34 upstream 0a44cac81050 135c18aa .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/19 09:02 upstream 0a44cac81050 135c18aa .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/19 08:23 upstream 0a44cac81050 135c18aa .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/19 07:51 upstream 0a44cac81050 135c18aa .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/19 05:32 upstream 0a44cac81050 135c18aa .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/18 21:33 upstream b1da3acc781c 012fbc32 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/18 21:21 upstream b1da3acc781c 012fbc32 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/18 20:52 upstream b1da3acc781c 012fbc32 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/18 19:58 upstream b1da3acc781c 012fbc32 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/18 13:20 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-root 2020/02/18 12:03 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-root 2020/02/18 11:29 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/18 05:49 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/18 04:36 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-root 2020/02/18 03:58 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/18 03:45 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/18 03:19 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/18 02:42 upstream 11a48a5a18c6 1ce142dc .config log report syz C
ci-upstream-kasan-gce-root 2020/02/17 20:50 upstream 11a48a5a18c6 2b411596 .config log report syz C
ci-upstream-kasan-gce 2020/02/17 20:34 upstream 11a48a5a18c6 2b411596 .config log report syz C
ci-upstream-kasan-gce-root 2020/02/17 19:27 upstream 11a48a5a18c6 2b411596 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/02/15 18:52 upstream 2019fc96af22 5d7b90f1 .config log report syz C
ci-upstream-kasan-gce-386 2020/02/22 09:15 upstream b0dd1eb220c0 2ffa6679 .config log report syz C
ci-upstream-kasan-gce-386 2020/02/21 01:07 upstream ca7e1fd1026c bd2a74a3 .config log report syz C
ci-upstream-kasan-gce-386 2020/02/18 21:24 upstream b1da3acc781c 012fbc32 .config log report syz C
ci-upstream-kasan-gce-386 2020/02/17 19:24 upstream 11a48a5a18c6 2b411596 .config log report syz C
ci-upstream-net-kasan-gce 2020/02/22 08:05 net-next 5f9721a2d119 2ffa6679 .config log report syz C
ci-upstream-net-kasan-gce 2020/02/22 02:32 net-next 5f9721a2d119 2ffa6679 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/21 22:27 upstream ca7e1fd1026c 2ffa6679 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/20 20:06 upstream ca7e1fd1026c bd2a74a3 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/19 19:40 upstream 4b205766d8fc b690a6e3 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/19 03:29 upstream 0a44cac81050 135c18aa .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/18 16:21 upstream b1da3acc781c 012fbc32 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/18 02:01 upstream 11a48a5a18c6 1ce142dc .config log report
ci-upstream-kasan-gce 2020/02/17 10:46 upstream 11a48a5a18c6 2b411596 .config log report
ci-upstream-kasan-gce-root 2020/02/16 23:45 upstream 11a48a5a18c6 1f448cd6 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/16 11:34 upstream db70e26e33ee cf914200 .config log report
ci-upstream-kasan-gce 2020/02/16 10:21 upstream db70e26e33ee cf914200 .config log report
ci-upstream-kasan-gce 2020/02/16 08:28 upstream db70e26e33ee 5d7b90f1 .config log report
ci-upstream-kasan-gce 2020/02/16 06:19 upstream 829e69446995 5d7b90f1 .config log report
ci-upstream-kasan-gce-selinux-root 2020/02/16 00:56 upstream 829e69446995 5d7b90f1 .config log report
ci-upstream-kasan-gce-root 2020/02/15 20:25 upstream 829e69446995 5d7b90f1 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/15 20:19 upstream 829e69446995 5d7b90f1 .config log report
ci-upstream-kasan-gce-smack-root 2020/02/15 18:55 upstream 2019fc96af22 5d7b90f1 .config log report
ci-upstream-kasan-gce-386 2020/02/15 18:35 upstream 2019fc96af22 5d7b90f1 .config log report
ci-upstream-net-kasan-gce 2020/02/21 20:00 net-next 5f9721a2d119 2ffa6679 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/16 10:10 linux-next 9f01828e9e16 cf914200 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/16 08:39 linux-next 9f01828e9e16 5d7b90f1 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/15 18:28 linux-next 9f01828e9e16 5d7b90f1 .config log report