syzbot


KASAN: use-after-free Read in delete_partition (2)
Status: upstream: reported C repro on 2021/03/30 21:45
Reported-by: syzbot+7d6c5587ec9cff5be65c@syzkaller.appspotmail.com
First crash: 116d, last: 116d

Cause bisection: introduced by (bisect log) :
commit daaedb820ad716e00210af8859b194c404202b78
Author: Christoph Hellwig <hch@lst.de>
Date: Tue Nov 3 10:00:09 2020 +0000

  mtd_blkdevs: don't override BLKFLSBUF

Crash: BUG: sleeping function called from invalid context in sta_info_move_state (log)
Repro: C syz .config
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Read in delete_partition C done done 3 325d 322d 17/22 fixed on 2020/11/16 12:12
Patch testing requests:
Created Duration User Patch Repo Result
2021/07/02 21:54 18m rajatasthana4@gmail.com patch upstream OK
2021/06/29 22:58 19m rajatasthana4@gmail.com patch upstream OK
2021/06/25 20:34 18m rajatasthana4@gmail.com upstream report log
2021/06/25 20:29 18m rajatasthana4@gmail.com https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2021/03/30 04:55 linux-next 931294922e65 6a81331a .config log report syz C KASAN: use-after-free Read in delete_partition