* [DPDK/ethdev Bug 1554] Use after free in cnxk_ethdev
@ 2024-09-27 18:27 bugzilla
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From: bugzilla @ 2024-09-27 18:27 UTC (permalink / raw)
To: dev
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https://bugs.dpdk.org/show_bug.cgi?id=1554
Bug ID: 1554
Summary: Use after free in cnxk_ethdev
Product: DPDK
Version: 24.11
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: major
Priority: Normal
Component: ethdev
Assignee: dev@dpdk.org
Reporter: stephen@networkplumber.org
Target Milestone: ---
If GCC malloc function tracing attributes are added, the the following error is
detected at compile time:
../drivers/net/cnxk/cnxk_ethdev_sec.c: In function
‘cnxk_nix_inl_custom_meta_pool_cb’:
../drivers/common/cnxk/roc_platform.h:196:32: warning: pointer ‘hp’ used after
‘rte_mempool_free’ [-Wuse-after-free]
196 | #define plt_free rte_free
../drivers/net/cnxk/cnxk_ethdev_sec.c:140:17: note: in expansion of macro
‘plt_free’
140 | plt_free(hp->pool_config);
| ^~~~~~~~
../drivers/net/cnxk/cnxk_ethdev_sec.c:139:17: note: call to ‘rte_mempool_free’
here
139 | rte_mempool_free(hp);
| ^~~~~~~~~~~~~~~~~~~~
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