Bug 1735633 (CVE-2016-10764) - CVE-2016-10764 kernel: off by one in function cqspi_setup_flash() in drivers/mtd/spi-nor/cadence-quadspi.c
Summary: CVE-2016-10764 kernel: off by one in function cqspi_setup_flash() in drivers/...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-10764
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: 1735634
Blocks: 1735635
TreeView+ depends on / blocked
 
Reported: 2019-08-01 07:48 UTC by Dhananjay Arunesh
Modified: 2021-02-16 21:34 UTC (History)
44 users (show)

Fixed In Version:
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Doc Text:
A vulnerability was found in Linux Kernel, there is an off by one in the drivers/mtd/spi-nor/cadence-quadspi.c cqspi_setup_flash() function. A local attacker who is able to trigger the device probe mechanism of a cadence quadspi Memory Technology Device may be able to corrupt memory or possibly escalate privileges.
Clone Of:
Environment:
Last Closed: 2019-11-20 18:51:34 UTC
Embargoed:

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Description Dhananjay Arunesh 2019-08-01 07:48:29 UTC 
A vulnerability was found in Linux Kernel, there is an off by one in the drivers/mtd/spi-nor/cadence-quadspi.c cqspi_setup_flash() function. There are CQSPI_MAX_CHIPSELECT elements in the ->f_pdata array so the ">" should be ">=" instead.

Reference:
https://github.com/torvalds/linux/commit/193e87143c290ec16838f5368adc0e0bc94eb931
https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.6
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=193e87143c290ec16838f5368adc0e0bc94eb931
Comment 1 Dhananjay Arunesh 2019-08-01 07:49:02 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1735634]
Comment 2 Justin M. Forbes 2019-08-01 12:36:45 UTC 
This was fixed for Fedora in 4.9.6 and never impacted any currently supported Fedora releases.
Comment 6 Product Security DevOps Team 2019-11-20 18:51:34 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2016-10764
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