WARNING: locking bug in l2cap_chan_del
Status: upstream: reported syz repro on 2020/08/07 07:07
First crash: 257d, last: 8d17h

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: KASAN: use-after-free Read in lock_sock_nested (log)
Repro: syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 WARNING: locking bug in l2cap_chan_del 1 221d 221d 0/1 auto-closed as invalid on 2021/01/09 22:04

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2021/04/12 14:37 net 6628ddfe bc15f7db .config log report syz
ci-upstream-net-this-kasan-gce 2021/03/12 04:14 net 7a1468ba bc15f7db .config log report syz
ci-upstream-net-this-kasan-gce 2021/01/17 02:17 net bcd0cf19 bc15f7db .config log report syz
Crashes (83):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2020/08/13 05:23 net 06a7a37b bc15f7db .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/12/12 21:40 upstream 7b1b868e bca53db9 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/12/08 17:54 upstream cd796ed3 a7f7f4a4 .config log report info
ci-upstream-kasan-gce-selinux-root 2020/11/29 11:49 upstream 45e885c4 a0092f9d .config log report info
ci-upstream-kasan-gce-selinux-root 2020/10/07 07:01 upstream c85fb28b 1880b4a9 .config log report info
ci-qemu-upstream 2020/09/14 00:07 upstream e4c26faa 2d3cdd63 .config log report
ci-qemu-upstream 2020/09/12 11:45 upstream 729e3d09 21d289c2 .config log report
ci-upstream-kasan-gce-smack-root 2020/09/10 17:28 upstream 7fe10096 409809d8 .config log report
ci-upstream-kasan-gce-smack-root 2020/09/09 10:57 upstream 34d4ddd3 0ea7a887 .config log report
ci-qemu-upstream 2020/09/07 00:13 upstream fffe3ae0 abf9ba4f .config log report
ci-upstream-kasan-gce-root 2020/08/11 09:23 upstream 00e4db51 bacaf5fa .config log report
ci-upstream-kasan-gce-root 2020/08/10 18:18 upstream fc80c51f 7adc7b65 .config log report
ci-upstream-kasan-gce-root 2020/08/07 01:02 upstream 47ec5303 1f122f88 .config log report
ci-qemu-upstream-386 2020/12/13 21:08 upstream ec6f5e0e 8f160dd5 .config log report info
ci-qemu-upstream-386 2020/11/04 21:51 upstream 4ef8451b 64069d48 .config log report info
ci-upstream-net-this-kasan-gce 2020/12/09 18:26 net 72d05c00 c090b4da .config log report info
ci-upstream-net-this-kasan-gce 2020/11/23 05:24 net f9b03653 0d27f508 .config log report info
ci-upstream-net-this-kasan-gce 2020/11/17 02:10 net e2142ef2 1bf9a662 .config log report info
ci-upstream-net-this-kasan-gce 2020/10/03 21:57 net ab0faf5f 1a3f9408 .config log report info
ci-upstream-net-this-kasan-gce 2020/10/01 21:25 net bb13a800 9602ddf4 .config log report info
ci-upstream-net-this-kasan-gce 2020/09/26 09:15 net 5e46e43c 4a006f63 .config log report info
ci-upstream-net-this-kasan-gce 2020/09/21 14:49 net e1b81391 9e1fa68e .config log report info
ci-upstream-net-this-kasan-gce 2020/09/11 19:12 net ee460417 adfb8b4e .config log report
ci-upstream-net-this-kasan-gce 2020/09/09 01:27 net 19162fd4 abf9ba4f .config log report
ci-upstream-net-this-kasan-gce 2020/09/02 05:33 net a609d025 abf9ba4f .config log report
ci-upstream-net-this-kasan-gce 2020/08/31 06:31 net c8146fe2 d5a3ae1f .config log report
ci-upstream-net-this-kasan-gce 2020/08/28 00:47 net af8ea111 816e0689 .config log report
ci-upstream-net-this-kasan-gce 2020/08/12 00:16 net c79f428d bacaf5fa .config log report
ci-upstream-net-this-kasan-gce 2020/08/10 00:12 net 7c7ab580 70301872 .config log report
ci-upstream-net-this-kasan-gce 2020/08/08 19:53 net 1c3b63f1 f721e4a0 .config log report
ci-upstream-net-kasan-gce 2020/12/15 03:00 net-next 13458ffe 97183ed7 .config log report info
ci-upstream-net-kasan-gce 2020/12/13 02:57 net-next 00f7763a bca53db9 .config log report info
ci-upstream-net-kasan-gce 2020/12/03 03:25 net-next 6b4f5031 8c9190ef .config log report info
ci-upstream-net-kasan-gce 2020/11/25 02:40 net-next d5a05e69 e34b696c .config log report info
ci-upstream-net-kasan-gce 2020/11/19 03:05 net-next 2b8473d2 0767f13f .config log report info
ci-upstream-net-kasan-gce 2020/11/14 10:22 net-next 774626fa 1bf9a662 .config log report info
ci-upstream-net-kasan-gce 2020/11/09 23:17 net-next bff6f1db 64069d48 .config log report info
ci-upstream-net-kasan-gce 2020/11/06 12:42 net-next c9448e82 64069d48 .config log report info
ci-upstream-net-kasan-gce 2020/10/12 10:26 net-next bc081a69 4a77ae0b .config log report info
ci-upstream-net-kasan-gce 2020/09/22 05:36 net-next b696db59 9e1fa68e .config log report info
ci-upstream-net-kasan-gce 2020/09/21 06:51 net-next 3cec0369 9564d2e9 .config log report info
ci-upstream-net-kasan-gce 2020/09/18 12:02 net-next 529d1fdf 38962c8b .config log report info
ci-upstream-net-kasan-gce 2020/09/17 23:39 net-next b948577b 8247808b .config log report info
ci-upstream-net-kasan-gce 2020/09/12 05:43 net-next 12913f74 79fb24e2 .config log report
ci-upstream-net-kasan-gce 2020/09/10 00:14 net-next b599a5b9 409809d8 .config log report
ci-upstream-net-kasan-gce 2020/09/09 05:59 net-next c1f1f16c abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/09/09 02:41 net-next 4349abdb abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/09/07 14:55 net-next 02a20d4f abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/09/07 12:42 net-next 02a20d4f abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/09/07 08:06 net-next 02a20d4f abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/09/06 23:18 net-next be239c4d abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/09/02 12:18 net-next dc1a9bf2 abf9ba4f .config log report
ci-upstream-net-kasan-gce 2020/08/31 00:54 net-next 0f091e43 d5a3ae1f .config log report
ci-upstream-net-kasan-gce 2020/08/12 19:33 net-next bfdd5aaa bc15f7db .config log report
ci-upstream-net-kasan-gce 2020/08/10 00:17 net-next bfdd5aaa 70301872 .config log report
ci-upstream-net-kasan-gce 2020/08/08 12:33 net-next bfdd5aaa ff51e522 .config log report
ci-upstream-net-kasan-gce 2020/08/08 09:43 net-next bfdd5aaa ff51e522 .config log report
ci-upstream-net-kasan-gce 2020/08/07 22:29 net-next bfdd5aaa cb436c69 .config log report
ci-upstream-net-kasan-gce 2020/08/06 22:34 net-next c1055b76 1f122f88 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/14 06:10 linux-next d5b2251d 2d3cdd63 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/11 08:46 linux-next d5b2251d adfb8b4e .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/30 08:47 linux-next b36c9697 d5a3ae1f .config log report