WARNING: stack going in the wrong direction? ip=_

WARNING: stack going in the wrong direction? ip=__schedule

Status: auto-closed as invalid on 2021/03/15 11:38
Reported-by: syzbot+ea09b30112d85368e9b8@syzkaller.appspotmail.com
First crash: 1702d, last: 1702d

▶ ▼ Similar bugs (2)

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-4.19	WARNING: stack going in the wrong direction? ip=__schedule	-1	syz		error	21	890d	1847d	0/1	upstream: reported syz repro on 2020/06/23 07:13
linux-4.14	WARNING: stack going in the wrong direction? ip=__schedule (2)	-1	syz		error	4	902d	1538d	0/1	upstream: reported syz repro on 2021/04/29 04:21

Sample crash report:

WARNING: stack going in the wrong direction? ip=__schedule+0x88b/0x1de0
Unknown ioctl -1067952636
print_req_error: I/O error, dev loop0, sector 0
syz-executor.5 uses obsolete (PF_INET,SOCK_PACKET)
 loop0: [CUMANA/ADFS] p1 [ADFS] p1
loop0: partition table partially beyond EOD, truncated
loop0: p1 size 3425862031 extends beyond EOD, truncated
 loop0: [CUMANA/ADFS] p1 [ADFS] p1
loop0: partition table partially beyond EOD, truncated
loop0: p1 size 3425862031 extends beyond EOD, truncated
 loop0: [CUMANA/ADFS] p1 [ADFS] p1
loop0: partition table partially beyond EOD, truncated
loop0: p1 size 3425862031 extends beyond EOD, truncated
print_req_error: I/O error, dev loop0, sector 0

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2020/11/15 11:37	linux-4.14.y	27ce4f2a6817	1bf9a662	.config	console log	report			info		ci2-linux-4-14

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