Bug 1757380 (CVE-2016-10906) - CVE-2016-10906 kernel: use-after-free in functions arc_emac_tx and arc_emac_tx_clean in drivers/net/ethernet/arc/emac_main.c
Summary: CVE-2016-10906 kernel: use-after-free in functions arc_emac_tx and arc_emac_t...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2016-10906
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: 1757381
Blocks: 1757382
TreeView+ depends on / blocked
 
Reported: 2019-10-01 10:51 UTC by Dhananjay Arunesh
Modified: 2021-02-16 21:20 UTC (History)
48 users (show)

Fixed In Version:
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Doc Text:
A use-after-free flaw was found in the Ethernet subsystem of the Linux kernel. A race condition was observed while a data transmission from a buffer occurred when the buffer was already freed causing a use-after-free problem.
Clone Of:
Environment:
Last Closed: 2020-02-27 15:49:32 UTC
Embargoed:

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Description Dhananjay Arunesh 2019-10-01 10:51:43 UTC 
An issue was discovered in drivers/net/ethernet/arc/emac_main.c in the Linux kernel. A use-after-free is caused by a race condition between the functions arc_emac_tx and arc_emac_tx_clean.

Reference:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c278c253f3d992c6994d08aa0efb2b6806ca396f
Comment 1 Dhananjay Arunesh 2019-10-01 10:52:05 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1757381]
Comment 2 Justin M. Forbes 2019-10-01 13:55:04 UTC 
This was fixed upstream in the 4.5 kernel and has never impacted any still currently supported version of Fedora.
Comment 4 Rohit Keshri 2020-02-27 11:52:09 UTC 
Statement:

The affected code was not introduced into any kernel versions shipped with Red Hat Enterprise Linux making this vulnerable not applicable to these platforms.
Comment 5 Rohit Keshri 2020-02-27 11:52:17 UTC 
Mitigation:

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Comment 7 Product Security DevOps Team 2020-02-27 15:49:32 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-2016-10906
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