syzbot


KASAN: invalid-free in bdev_free_inode (2)
Status: upstream: reported syz repro on 2021/08/06 11:45
Reported-by: syzbot+5fa698422954b6b9307b@syzkaller.appspotmail.com
First crash: 83d, last: 50d

Cause bisection: introduced by (bisect log) :
commit 63d152149b2d0860ccf8c4e6596b6175b2b7ace6
Author: Lorenzo Colitti <lorenzo@google.com>
Date: Wed Jan 13 23:42:22 2021 +0000

  usb: gadget: u_ether: support configuring interface names.

Crash: BUG: spinlock bad magic in synchronize_srcu (log)
Repro: syz .config

Fix bisection: fixed by (bisect log) [no-op commit]:
commit 9eaca40c0d13a21848b5a35dc8c37dc3690a4ff1
Author: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date: Mon Jun 14 11:23:43 2021 +0000

  media: ti-vpe: cal: add camerarx enable/disable refcounting

similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: invalid-free in bdev_free_inode 18 286d 311d 0/22 auto-closed as invalid on 2021/05/11 01:13
Patch testing requests:
Created Duration User Patch Repo Result
2021/08/14 06:41 15m phind.uet@gmail.com linux-next OK

Sample crash report:

Crashes (10):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2021/08/11 11:15 net-next d3432bf10f17 6972b106 .config log report syz KASAN: invalid-free in bdev_free_inode
ci-upstream-kasan-gce-selinux-root 2021/08/29 03:50 upstream 3f5ad13cb012 be2c130d .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-kasan-gce-smack-root 2021/08/17 16:12 upstream 794c7931a242 a2fe1cb5 .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-kasan-gce 2021/08/02 11:39 upstream c500bee1c5b2 6c236867 .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-kasan-gce-386 2021/08/16 13:35 upstream 7c60610d4767 33c26cb7 .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-kasan-gce-386 2021/08/12 07:17 upstream 761c6d7ec820 6972b106 .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-net-kasan-gce 2021/09/03 17:38 net-next 29ce8f970107 f62a5829 .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-net-kasan-gce 2021/08/11 10:12 net-next d3432bf10f17 6972b106 .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-net-kasan-gce 2021/08/06 16:18 net-next 0ca8d3ca4561 f9e341e3 .config log report info KASAN: invalid-free in bdev_free_inode
ci-upstream-linux-next-kasan-gce-root 2021/08/09 06:24 linux-next 7999516e20bd 6972b106 .config log report info KASAN: invalid-free in bdev_free_inode