Bug 199851

Summary:	KASAN: slab-out-of-bounds in get_block_address.isra
Product:	Memory Management	Reporter:	higuita (higuita)
Component:	Slab Allocator	Assignee:	Andrew Morton (akpm)
Status:	CLOSED CODE_FIX
Severity:	normal	CC:	bp
Priority:	P1
Hardware:	All
OS:	Linux
Kernel Version:	4.16.12	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	full dmesg with kasan oops My kernel .config

Description higuita 2018-05-27 00:44:45 UTC

Created attachment 276219 [details]
full dmesg with kasan oops

Building 4.16.12 with kasan, i get this every time during boot:

 BUG: KASAN: slab-out-of-bounds in get_block_address.isra.3+0x1c3/0x2f0
 Read of size 4 at addr ffff88053e3abd34 by task swapper/0/1

Comment 1 higuita 2018-05-27 00:45:26 UTC

Created attachment 276221 [details]
My kernel .config

Comment 2 Borislav Petkov 2018-05-30 07:37:56 UTC

Already fixed:

78ce241099bb ("x86/MCE/AMD: Cache SMCA MISC block addresses")

Lemme ping Greg to take it into 4.16-stable.

Thx.

Comment 3 Borislav Petkov 2018-06-04 13:00:34 UTC

Pls try 4.16.14-rc1 from here:

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/

It should fix your issue.

Thx.

Comment 4 Borislav Petkov 2018-09-12 15:55:24 UTC

Looks forgotten and should be already fixed. Reopen if more needs to be done.