Bug 1777408 (CVE-2019-18807) - CVE-2019-18807 kernel: memory leak in sja1105_static_config_upload() function in drivers/net/dsa/sja1105/sja1105_spi.c
Summary: CVE-2019-18807 kernel: memory leak in sja1105_static_config_upload() function...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-18807
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: 1777410
Blocks: 1777488
TreeView+ depends on / blocked
 
Reported: 2019-11-27 15:22 UTC by Dhananjay Arunesh
Modified: 2020-02-25 15:35 UTC (History)
47 users (show)

Fixed In Version:
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Last Closed: 2020-02-25 15:35:56 UTC
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Description Dhananjay Arunesh 2019-11-27 15:22:39 UTC 
Two memory leaks in the sja1105_static_config_upload() function in drivers/net/dsa/sja1105/sja1105_spi.c in the Linux kernel attackers to cause a denial of service (memory consumption) by triggering static_config_buf_prepare_for_upload() or sja1105_inhibit_tx() failures.

Reference:
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.5
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=68501df92d116b760777a2cfda314789f926476f
Comment 1 Dhananjay Arunesh 2019-11-27 15:23:10 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1777410]
Comment 2 Justin M. Forbes 2019-12-02 14:20:38 UTC 
This was fixed for Fedora in the 5.3.5 stable kernel update.
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