syzbot


KASAN: slab-out-of-bounds Read in soft_cursor (2)
Status: fixed on 2021/06/23 17:43
Reported-by: syzbot+f1f9bc8c8cdcafc5ccfc@syzkaller.appspotmail.com
Fix commit: 8c5ec4a7 vt: Fix character height handling with VT_RESIZEX
First crash: 155d, last: 33d

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 (6):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 KASAN: slab-out-of-bounds Read in soft_cursor C unreliable 57 38d 569d 0/1 upstream: reported C repro on 2019/12/03 14:54
linux-4.19 KASAN: slab-out-of-bounds Read in soft_cursor C done 61 231d 569d 1/1 fixed on 2020/12/05 19:30
upstream KASAN: slab-out-of-bounds Read in soft_cursor C done 218 259d 568d 17/22 fixed on 2020/11/16 12:12
linux-4.14 KASAN: use-after-free Read in soft_cursor C inconclusive 7 57d 568d 0/1 upstream: reported C repro on 2019/12/04 13:11
linux-4.19 KASAN: global-out-of-bounds Read in soft_cursor C done 22 30d 498d 1/1 fixed on 2021/06/24 08:01
linux-4.14 KASAN: global-out-of-bounds Read in soft_cursor C 19 8d09h 556d 0/1 upstream: reported C repro on 2019/12/16 00:09

Sample crash report:

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2021/05/20 07:53 linux-4.19.y 3c8c2309 a343ba6b .config log report syz C KASAN: slab-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/04/10 17:10 linux-4.19.y 830a059c 6a81331a .config log report syz C KASAN: slab-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/05/22 11:56 linux-4.19.y 1e986fe9 3c7fef33 .config log report info KASAN: slab-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/04/10 15:06 linux-4.19.y 830a059c 6a81331a .config log report info KASAN: slab-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/04/03 06:17 linux-4.19.y 2034d6f0 6a81331a .config log report info KASAN: slab-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/03/31 11:56 linux-4.19.y 2034d6f0 6a81331a .config log report info KASAN: slab-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/03/26 15:28 linux-4.19.y 78fec161 a8529b82 .config log report info KASAN: slab-out-of-bounds Read in soft_cursor
ci2-linux-4-19 2021/01/20 08:34 linux-4.19.y 43d555d8 63631df1 .config log report info KASAN: slab-out-of-bounds Read in soft_cursor