syzbot


KASAN: global-out-of-bounds Read in soft_cursor
Status: fixed on 2021/06/24 08:01
Reported-by: syzbot+4a1ae356fd4e26c7650f@syzkaller.appspotmail.com
Fix commit: 8c5ec4a731e1 vt: Fix character height handling with VT_RESIZEX
First crash: 583d, last: 116d

Fix bisection: fixed by (bisect log) :
commit 8c5ec4a731e1e2d9b6906bcde62de57a609a9b86
Author: Maciej W. Rozycki <macro@orcam.me.uk>
Date: Thu May 13 09:51:50 2021 +0000

  vt: Fix character height handling with VT_RESIZEX

similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: global-out-of-bounds Read in soft_cursor 11 420d 646d 0/22 auto-closed as invalid on 2020/11/22 03:01
linux-4.14 KASAN: global-out-of-bounds Read in soft_cursor C 19 4d04h 642d 0/1 upstream: reported C repro on 2019/12/16 00:09
linux-4.14 KASAN: use-after-free Read in soft_cursor C inconclusive 7 143d 654d 0/1 upstream: reported C repro on 2019/12/04 13:11
linux-4.19 KASAN: slab-out-of-bounds Read in soft_cursor (2) C done 8 119d 241d 1/1 fixed on 2021/06/23 17:43
linux-4.14 KASAN: slab-out-of-bounds Read in soft_cursor C unreliable 57 123d 655d 0/1 upstream: reported C repro on 2019/12/03 14:54

Sample crash report:

Crashes (22):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/12/06 17:17 linux-4.19.y daefdc9eb24b f12ba0c5 .config log report syz C
ci2-linux-4-19 2021/05/24 23:48 linux-4.19.y 1e986fe9ad15 3c7fef33 .config log report info KASAN: global-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/04/28 07:57 linux-4.19.y 2965db2e004c 77e2b668 .config log report info KASAN: global-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/04/18 12:34 linux-4.19.y 2965db2e004c 7e2b734b .config log report info KASAN: global-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/03/27 19:09 linux-4.19.y 78fec1611cbf a8529b82 .config log report info KASAN: global-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/03/27 11:12 linux-4.19.y 78fec1611cbf a8529b82 .config log report info KASAN: global-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/01/05 19:59 linux-4.19.y 3207316b3bee a0234d98 .config log report info
ci2-linux-4-19 2020/12/30 08:36 linux-4.19.y 13d2ce42de8c 0fa352f2 .config log report info
ci2-linux-4-19 2020/12/20 05:40 linux-4.19.y 13d2ce42de8c 04201c06 .config log report info
ci2-linux-4-19 2020/12/07 03:28 linux-4.19.y daefdc9eb24b c521566d .config log report info
ci2-linux-4-19 2020/12/06 21:36 linux-4.19.y daefdc9eb24b c521566d .config log report info
ci2-linux-4-19 2020/12/06 16:48 linux-4.19.y daefdc9eb24b f12ba0c5 .config log report info
ci2-linux-4-19 2020/11/13 03:12 linux-4.19.y 31acccdc8774 16fca0c8 .config log report info
ci2-linux-4-19 2020/10/21 02:06 linux-4.19.y ad326970d25c ff4a3345 .config log report info
ci2-linux-4-19 2020/08/10 09:49 linux-4.19.y 961f830af065 70301872 .config log report
ci2-linux-4-19 2020/05/11 18:39 linux-4.19.y 033c4ea49a4b f8f57555 .config log report
ci2-linux-4-19 2020/05/01 09:28 linux-4.19.y 765675379b62 143a10e9 .config log report
ci2-linux-4-19 2020/04/27 19:20 linux-4.19.y 7edd66cf6167 0ce7569e .config log report
ci2-linux-4-19 2020/04/08 23:28 linux-4.19.y dda0e2920330 db9bcd4b .config log report
ci2-linux-4-19 2020/02/19 20:31 linux-4.19.y 4fccc2503536 47fae6e9 .config log report
ci2-linux-4-19 2020/02/17 00:22 linux-4.19.y 9b15f7fae677 1f448cd6 .config log report
ci2-linux-4-19 2020/02/12 19:07 linux-4.19.y 357668399cf7 84f4fc8a .config log report