Bug 263396 - Fix a possible NULL pointer dereference bug in ocs_hw_setup()
Summary: Fix a possible NULL pointer dereference bug in ocs_hw_setup()
Status: New
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: Unspecified
Hardware: Any Any
: --- Affects Many People
Assignee: freebsd-bugs (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-04-18 16:20 UTC by Zhou Qingyang
Modified: 2022-04-18 16:20 UTC (History)
0 users

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Attachments
A possible fix for this bug (1.19 KB, patch)
2022-04-18 16:20 UTC, Zhou Qingyang 		no flags Details | Diff
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Description Zhou Qingyang 2022-04-18 16:20:36 UTC 
Created attachment 233305 [details]
A possible fix for this bug

The function ocs_hw_qtop_parse() could return NULL on malloc failure.
However the caller function ocs_hw_setup() of ocs_hw_qtop_parse()
uses the return value without check, which could lead to NULL pointer 
dereference.

Fix this by adding a NULL check.

this patch is a possible fix.