Bug 199851 - KASAN: slab-out-of-bounds in get_block_address.isra
Summary: KASAN: slab-out-of-bounds in get_block_address.isra
Status: CLOSED CODE_FIX
Alias: None
Product: Memory Management
Classification: Unclassified
Component: Slab Allocator (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: Andrew Morton
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2018-05-27 00:44 UTC by higuita
Modified: 2018-09-12 15:55 UTC (History)
1 user (show)

See Also:
Kernel Version: 4.16.12
Subsystem:
Regression: No
Bisected commit-id:

Attachments
full dmesg with kasan oops (73.71 KB, text/plain)
2018-05-27 00:44 UTC, higuita 		Details
My kernel .config (179.89 KB, text/plain)
2018-05-27 00:45 UTC, higuita 		Details
Add an attachment (proposed patch, testcase, etc.)

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.
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