syzbot


BUG: corrupted list in klist_dec_and_del
Status: upstream: reported C repro on 2021/04/09 12:29
Reported-by: syzbot+f9f9397a8879e0b3cecc@syzkaller.appspotmail.com
First crash: 117d, last: 57d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: BUG: corrupted list in kobject_add_internal (log)
Repro: C syz .config

Fix bisection: the fix commit could be any of (bisect log):
  e49d033bddf5 Linux 5.12-rc6
  a180bd1d7e16 iov_iter: remove uaccess_kernel() warning from iov_iter_init()
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.14 BUG: corrupted list in klist_dec_and_del C inconclusive 2 39d 271d 0/1 upstream: reported C repro on 2020/11/02 15:23
linux-4.19 BUG: corrupted list in klist_dec_and_del C 1 5d19h 246d 0/1 upstream: reported C repro on 2020/11/28 07:47

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2021/04/05 12:24 upstream e49d033bddf5 6a81331a .config log report syz C BUG: corrupted list in klist_dec_and_del