Bug 1544700 (CVE-2015-9016) - CVE-2015-9016 kernel: Race condition in block/blk-mq.c:blk_mq_tag_to_rq() can lead to kernel oops
Summary: CVE-2015-9016 kernel: Race condition in block/blk-mq.c:blk_mq_tag_to_rq() can...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2015-9016
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1544702
TreeView+ depends on / blocked
 
Reported: 2018-02-13 10:36 UTC by Adam Mariš
Modified: 2019-09-29 14:32 UTC (History)
47 users (show)

Fixed In Version: kernel 4.3
Doc Type: If docs needed, set a value
Doc Text:
A race condition was found in the block multi queue subsystem of the Linux kernel. This may lead to a kernel panic or have another unknown side affect.
Clone Of:
Environment:
Last Closed: 2018-02-22 13:22:46 UTC


Attachments (Terms of Use)

Description Adam Mariš 2018-02-13 10:36:30 UTC
Race condition was found in block/blk-mq.c in blk_mq_tag_to_rq() function that can lead to kernel oops or possible disk write corruption by removing tagged writes intended to be flushed.


Upstream patch:

https://github.com/torvalds/linux/commit/0048b4837affd153897ed1222283492070027aa9

Reference:

https://source.android.com/security/bulletin/2018-02-01#kernel-components

Comment 2 Wade Mealing 2018-02-20 02:49:43 UTC
Statement:

This issue does not affect the Linux kernel packages as shipped with Red Hat Enterprise Linux.


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