syzbot


INFO: task hung in do_read_cache_page
Status: fixed on 2021/01/13 11:08
Reported-by: syzbot+12c04f947c76f780d488@syzkaller.appspotmail.com
Fix commit: 8e63266b0d42 fcntl: Fix potential deadlock in send_sig{io, urg}()
First crash: 414d, last: 354d

Fix bisection: fixed by (bisect log) :
commit 8e63266b0d42a2dc233cfc468636889b5b3ba1cf
Author: Boqun Feng <boqun.feng@gmail.com>
Date: Thu Nov 5 06:23:51 2020 +0000

  fcntl: Fix potential deadlock in send_sig{io, urg}()

similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in do_read_cache_page (2) C error 10 69d 296d 0/1 upstream: reported C repro on 2021/02/09 08:22
upstream INFO: task hung in do_read_cache_page 10 1242d 1345d 0/22 auto-closed as invalid on 2019/02/22 10:09
upstream INFO: task hung in do_read_cache_page (3) C done 74 3d15h 675d 0/22 upstream: reported C repro on 2020/01/27 06:32
android-49 INFO: task hung in do_read_cache_page 1 1286d 1286d 0/3 auto-closed as invalid on 2019/02/22 13:59
upstream INFO: task hung in do_read_cache_page (2) 1 812d 812d 0/22 auto-closed as invalid on 2019/11/11 08:43

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-19 2020/11/13 20:26 linux-4.19.y 31acccdc8774 4a7fa9b4 .config log report syz C
ci2-linux-4-19 2020/10/14 16:40 linux-4.19.y a1b977b49b66 fc7735a2 .config log report syz C