WARNING: missing regs for base reg R10 at ip __mutex

WARNING: missing regs for base reg R10 at ip __mutex_lock

Status: public: reported syz repro on 2019/10/22 06:15
Reported-by: syzbot+e236104a07452cac179d@syzkaller.appspotmail.com
First crash: 1857d, last: 1844d

▶ ▼ Similar bugs (1)

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.14	WARNING: missing regs for base reg R10 at ip __mutex_lock				1	1706d	1706d	0/1	auto-closed as invalid on 2020/07/19 06:53

Sample crash report:

audit: type=1400 audit(1571722427.041:9): avc:  denied  { map } for  pid=1774 comm="syz-execprog" path="/root/syzkaller-shm327400990" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1
hrtimer: interrupt took 34451 ns
WARNING: missing regs for base reg R10 at ip __mutex_lock+0x2b/0x13e0 kernel/locking/mutex.c:892

Crashes (3):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	Manager
2019/10/22 05:43	android-4.14	7d642373db4c	c59a7cd8	.config	console log	report	syz	ci-android-414-kasan-gce-root
2019/11/04 05:17	android-4.14	6409e7e01d11	b35fad31	.config	console log	report		ci-android-414-kasan-gce-root
2019/10/22 05:14	android-4.14	7d642373db4c	c59a7cd8	.config	console log	report		ci-android-414-kasan-gce-root

* ~~Struck through~~ repros no longer work on HEAD.