syzbot


KASAN: global-out-of-bounds Read in vga16fb_imageblit
Status: fixed on 2020/10/10 01:52
Reported-by: syzbot+69fbd3e01470f169c8c4@syzkaller.appspotmail.com
Fix commit: bd018a6a video: fbdev: fix OOB read in vga_8planes_imageblit()
First crash: 524d, last: 239d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: no output from test machine (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: global-out-of-bounds Read in vga16fb_imageblit C done 723 201d 524d 1/1 fixed on 2020/11/20 16:27
linux-4.19 KASAN: global-out-of-bounds Read in vga16fb_imageblit C error 331 236d 524d 0/1 upstream: reported C repro on 2019/12/02 21:13
Patch testing requests:
Created Duration User Patch Repo Result
2020/08/25 11:47 9m penguin-kernel@i-love.sakura.ne.jp upstream report log
2020/08/25 11:04 16m penguin-kernel@i-love.sakura.ne.jp patch upstream OK

Sample crash report:

Crashes (1071):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/09/05 17:42 upstream c70672d8 abf9ba4f .config log report syz C
ci-upstream-kasan-gce-root 2020/09/04 14:34 upstream e28f0104 abf9ba4f .config log report syz C
ci-upstream-kasan-gce 2020/09/02 18:39 upstream 9c7d619b abf9ba4f .config log report syz C
ci-upstream-kasan-gce-root 2020/08/31 13:48 upstream dcc5c6f0 d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/08/31 08:39 upstream dcc5c6f0 d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/02/12 17:21 upstream 359c92c0 84f4fc8a .config log report syz C
ci-upstream-kasan-gce-root 2020/02/11 07:36 upstream 0a679e13 084454ae .config log report syz C
ci-upstream-kasan-gce 2020/02/09 16:34 upstream fdfa3a67 6ece2ea5 .config log report syz C
ci-upstream-kasan-gce 2019/12/16 14:59 upstream 07c4b9e9 eef6e580 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/16 14:54 upstream 07c4b9e9 eef6e580 .config log report syz C
ci-upstream-kasan-gce-root 2019/12/16 14:54 upstream 07c4b9e9 eef6e580 .config log report syz C
ci-upstream-kasan-gce-root 2019/12/04 04:36 upstream 76bb8b05 ae13a849 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/04 04:19 upstream 76bb8b05 ae13a849 .config log report syz C
ci-upstream-kasan-gce-root 2019/12/04 01:00 upstream 76bb8b05 ae13a849 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/04 00:03 upstream 76bb8b05 ae13a849 .config log report syz C
ci-upstream-kasan-gce-root 2019/12/03 20:16 upstream 76bb8b05 ae13a849 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2019/12/03 16:25 upstream 76bb8b05 ab342da3 .config log report syz C
ci-upstream-kasan-gce 2019/12/03 07:39 upstream 596cf45c ab342da3 .config log report syz C
ci-upstream-kasan-gce 2019/12/03 05:18 upstream 596cf45c ab342da3 .config log report syz C
ci-upstream-kasan-gce-386 2020/09/01 11:37 upstream b51594df d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-386 2020/08/30 14:54 upstream 1127b219 d5a3ae1f .config log report syz C
ci-upstream-kasan-gce-386 2020/07/04 05:58 upstream 7cc2a8ea 51095195 .config log report syz C
ci-upstream-kasan-gce-386 2020/02/09 13:17 upstream fdfa3a67 6ece2ea5 .config log report syz C
ci-upstream-kasan-gce-386 2019/12/16 14:58 upstream 07c4b9e9 eef6e580 .config log report syz C
ci-upstream-kasan-gce-386 2019/12/03 08:52 upstream 596cf45c ab342da3 .config log report syz C
ci-upstream-kasan-gce-386 2019/12/03 06:09 upstream 596cf45c ab342da3 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/08/30 02:33 linux-next b36c9697 d5a3ae1f .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/07/04 09:12 linux-next 9e50b94b 51095195 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/02/25 14:45 linux-next bdc5461b 59b57593 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/12/26 22:17 linux-next 7ddd09fc be5c2c81 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/12/16 15:23 linux-next 32b8acf8 eef6e580 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/12/16 14:39 linux-next 32b8acf8 eef6e580 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/12/16 11:19 linux-next 32b8acf8 eef6e580 .config log report syz C
ci-upstream-kasan-gce-root 2020/07/04 16:59 upstream 7cc2a8ea 51095195 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/07/04 14:47 upstream 7cc2a8ea 51095195 .config log report syz
ci-upstream-kasan-gce 2020/07/04 06:33 upstream 7cc2a8ea 51095195 .config log report syz
ci-upstream-kasan-gce 2020/09/13 05:18 upstream ef2e9a56 ce441f06 .config log report
ci-upstream-kasan-gce 2020/09/12 22:34 upstream 729e3d09 ce441f06 .config log report
ci-upstream-kasan-gce-root 2020/09/11 01:12 upstream 7fe10096 409809d8 .config log report
ci-upstream-kasan-gce-selinux-root 2020/09/10 22:47 upstream 7fe10096 409809d8 .config log report
ci-upstream-kasan-gce-root 2020/09/10 16:12 upstream 7fe10096 409809d8 .config log report
ci-upstream-kasan-gce-root 2020/09/10 14:48 upstream 34d4ddd3 409809d8 .config log report
ci-upstream-kasan-gce 2020/09/10 11:27 upstream 34d4ddd3 409809d8 .config log report
ci-upstream-kasan-gce-selinux-root 2020/09/10 10:20 upstream 34d4ddd3 409809d8 .config log report
ci-upstream-kasan-gce 2020/09/10 06:23 upstream 34d4ddd3 409809d8 .config log report
ci-upstream-kasan-gce 2020/09/10 02:28 upstream 34d4ddd3 409809d8 .config log report
ci-upstream-kasan-gce 2020/09/09 19:53 upstream 34d4ddd3 0ea7a887 .config log report
ci-upstream-kasan-gce 2020/09/09 18:43 upstream 34d4ddd3 0ea7a887 .config log report
ci-upstream-kasan-gce-selinux-root 2020/09/09 17:27 upstream 34d4ddd3 0ea7a887 .config log report
ci-upstream-kasan-gce-root 2020/09/09 16:22 upstream 34d4ddd3 0ea7a887 .config log report
ci-upstream-kasan-gce 2020/09/09 06:00 upstream 612ab8ad abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/09 05:43 upstream 612ab8ad abf9ba4f .config log report
ci-upstream-kasan-gce-root 2020/09/08 21:10 upstream 612ab8ad abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/08 19:47 upstream 612ab8ad abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/08 17:28 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce-selinux-root 2020/09/08 16:25 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce-root 2020/09/08 16:20 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/08 15:17 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce-root 2020/09/08 13:52 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/08 11:47 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/08 09:51 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce-selinux-root 2020/09/07 22:23 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/07 20:56 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce-selinux-root 2020/09/07 12:56 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/07 10:53 upstream a8205e31 abf9ba4f .config log report
ci-upstream-kasan-gce-root 2020/09/07 08:52 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/07 03:37 upstream a8205e31 abf9ba4f .config log report
ci-upstream-kasan-gce 2020/09/06 23:15 upstream dd9fb9bb abf9ba4f .config log report
ci-upstream-kasan-gce-386 2020/09/11 04:13 upstream 7fe10096 409809d8 .config log report
ci-upstream-kasan-gce-386 2020/09/10 20:31 upstream 7fe10096 409809d8 .config log report
ci-upstream-kasan-gce-386 2020/09/10 13:46 upstream 34d4ddd3 409809d8 .config log report
ci-upstream-kasan-gce-386 2020/09/09 14:58 upstream 34d4ddd3 0ea7a887 .config log report
ci-upstream-kasan-gce-386 2020/09/09 13:25 upstream 34d4ddd3 0ea7a887 .config log report
ci-upstream-kasan-gce-386 2020/09/09 07:07 upstream 6f6a73c8 abf9ba4f .config log report
ci-upstream-kasan-gce-386 2020/09/08 22:45 upstream 6f6a73c8 abf9ba4f .config log report
ci-upstream-kasan-gce-386 2020/09/07 04:47 upstream f4d51dff abf9ba4f .config log report
ci-upstream-kasan-gce-386 2020/09/06 22:07 upstream dd9fb9bb abf9ba4f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/08 05:07 linux-next 7a695657 abf9ba4f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/08 03:46 linux-next 7a695657 abf9ba4f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/07 23:46 linux-next 7a695657 abf9ba4f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/07 13:58 linux-next 7a695657 abf9ba4f .config log report