syzbot


KASAN: use-after-free Read in rxrpc_put_peer
Status: fixed on 2019/11/04 14:50
Reported-by: syzbot+b9be979c55f2bea8ed30@syzkaller.appspotmail.com
Fix commit: 55f6c98e3674 rxrpc: Fix trace-after-put looking at the put peer record 9ebeddef58c4 rxrpc: rxrpc_peer needs to hold a ref on the rxrpc_local record
First crash: 840d, last: 781d

Cause bisection: failed (bisect log)
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: use-after-free Read in rxrpc_put_peer 2 773d 819d 0/1 auto-closed as invalid on 2020/02/24 07:46
Patch testing requests:
Created Duration User Patch Repo Result
2019/10/04 14:41 19m dhowells@redhat.com git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git 37932e658d77ff16d67f5e3cd24096d48931c2be OK
2019/10/04 13:43 19m dhowells@redhat.com git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git cc9604d48fc3b73d9665ae80a2f07dc3fc0574c4 report log
2019/08/29 12:17 18m dhowells@redhat.com git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git 48b9e92aeb3c2b0df3454faf9024f6ca611d65a3 OK

Sample crash report:

Crashes (38):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2019/09/30 10:53 upstream a3c0e7b1fe1f c1ad5441 .config log report syz C
ci-upstream-kasan-gce-root 2019/09/04 12:51 upstream 089cf7f6ecb2 12381952 .config log report syz
ci-upstream-net-this-kasan-gce 2019/09/11 19:28 net 3dfdecc6d125 a60cb4cd .config log report syz
ci-upstream-net-this-kasan-gce 2019/09/08 20:51 net 28abe5796252 a60cb4cd .config log report syz
ci-upstream-net-kasan-gce 2019/10/02 07:48 net-next 5be5515a8ea1 b7a87a83 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2019/09/04 22:12 linux-next 6d028043b55e 040fda58 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2019/08/28 19:47 linux-next ed2393ca0910 fd37b39e .config log report syz
ci-upstream-kasan-gce-root 2019/10/19 21:13 upstream 998d75510e37 8c88c9c1 .config log report
ci-upstream-kasan-gce 2019/10/18 04:59 upstream 283ea345934d 8c88c9c1 .config log report
ci-upstream-kasan-gce 2019/10/16 05:49 upstream 3b1f00aceb7a d4ea592f .config log report
ci-upstream-kasan-gce-selinux-root 2019/10/08 10:52 upstream eda57a0e4299 28ac6e64 .config log report
ci-upstream-kasan-gce-smack-root 2019/09/21 13:07 upstream f97c81dc6ca5 d96e88f3 .config log report
ci-upstream-kasan-gce 2019/09/19 20:51 upstream b41dae061bbd eb940044 .config log report
ci-upstream-kasan-gce-root 2019/09/17 04:11 upstream cef7298262e9 51ca0454 .config log report
ci-upstream-kasan-gce 2019/09/16 19:50 upstream 4d856f72c10e cb936299 .config log report
ci-upstream-kasan-gce-root 2019/09/12 14:24 upstream ad32b4800c2b 0b7672ee .config log report
ci-upstream-kasan-gce-root 2019/09/09 20:39 upstream 56037cadf604 a60cb4cd .config log report
ci-upstream-kasan-gce-selinux-root 2019/09/08 12:40 upstream b3a9964cfa69 a60cb4cd .config log report
ci-upstream-kasan-gce 2019/09/05 22:07 upstream 3b47fd5ca9ea 040fda58 .config log report
ci-upstream-kasan-gce-smack-root 2019/09/04 06:10 upstream 089cf7f6ecb2 12381952 .config log report
ci-upstream-kasan-gce-smack-root 2019/09/04 06:09 upstream 089cf7f6ecb2 12381952 .config log report
ci-upstream-kasan-gce 2019/09/04 04:50 upstream 089cf7f6ecb2 526709ff .config log report
ci-upstream-kasan-gce-smack-root 2019/09/04 03:24 upstream 089cf7f6ecb2 526709ff .config log report
ci-upstream-kasan-gce-smack-root 2019/09/04 00:14 upstream 089cf7f6ecb2 526709ff .config log report
ci-upstream-kasan-gce-smack-root 2019/09/02 18:21 upstream 089cf7f6ecb2 14544a56 .config log report
ci-upstream-kasan-gce-smack-root 2019/08/30 23:21 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-kasan-gce-smack-root 2019/08/29 18:23 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/29 12:39 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-kasan-gce-selinux-root 2019/08/29 08:46 upstream 6525771f58cb fd37b39e .config log report
ci-upstream-net-this-kasan-gce 2019/09/27 21:59 net 2b6fd3ea438c d8074e0b .config log report
ci-upstream-net-this-kasan-gce 2019/08/21 15:11 net a1c4cd67840e 4ea67ff8 .config log report
ci-upstream-net-kasan-gce 2019/10/15 19:35 net-next 85a83a8fca7f b5268b89 .config log report
ci-upstream-net-kasan-gce 2019/10/15 15:39 net-next 85a83a8fca7f b5268b89 .config log report
ci-upstream-net-kasan-gce 2019/09/27 10:09 net-next b41dae061bbd 2f1548bc .config log report
ci-upstream-net-kasan-gce 2019/09/09 18:36 net-next 6703a605b5ab a60cb4cd .config log report
ci-upstream-net-kasan-gce 2019/09/07 14:14 net-next 742ca7812bcc a60cb4cd .config log report
ci-upstream-net-kasan-gce 2019/09/06 01:28 net-next 0e5b36bc4c1f 040fda58 .config log report
ci-upstream-net-kasan-gce 2019/09/03 00:27 net-next a21cf11bc57f 14544a56 .config log report