syzbot


INFO: trying to register non-static key in io_cqring_ev_posted
Status: fixed on 2019/12/13 00:31
Reported-by: syzbot+0d818c0d39399188f393@syzkaller.appspotmail.com
Fix commit: eb065d301e8c io_uring: io_allocate_scq_urings() should return a sane state
First crash: 796d, last: 784d

Cause bisection: introduced by (bisect log) :
commit 206aefde4f886fdeb3b6339aacab3a85fb74cb7e
Author: Jens Axboe <axboe@kernel.dk>
Date: Fri Nov 8 01:27:42 2019 +0000

  io_uring: reduce/pack size of io_ring_ctx

Crash: INFO: trying to register non-static key in io_cqring_ev_posted (log)
Repro: C syz .config
duplicates (1):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
INFO: trying to register non-static key in io_cqring_overflow_flush C done 2 784d 784d 0/22 closed as dup on 2019/11/28 15:29
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream INFO: trying to register non-static key in io_cqring_ev_posted (3) C done 3 610d 613d 17/22 fixed on 2020/07/17 17:58
upstream INFO: trying to register non-static key in io_cqring_ev_posted (2) C done 42 623d 660d 17/22 fixed on 2020/05/10 10:42

Sample crash report:

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2019/11/20 15:57 linux-next 5d1131b4d61e f4b7ed07 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2019/11/15 13:43 linux-next 5a6fcbeabe3e 79248ee8 .config log report syz
ci-upstream-kasan-gce-root 2019/11/27 20:25 upstream 89d57dddd7d3 0d63f89c .config log report
ci-upstream-linux-next-kasan-gce-root 2019/11/22 01:51 linux-next 1fef9976397f 8098ea0f .config log report
ci-upstream-linux-next-kasan-gce-root 2019/11/20 15:36 linux-next 5d1131b4d61e f4b7ed07 .config log report
ci-upstream-linux-next-kasan-gce-root 2019/11/15 13:19 linux-next 5a6fcbeabe3e 79248ee8 .config log report