From: Stephen Hemminger <stephen@networkplumber.org>
To: dev@dpdk.org
Cc: Stephen Hemminger <stephen@networkplumber.org>,
Anatoly Burakov <anatoly.burakov@intel.com>,
Tyler Retzlaff <roretzla@linux.microsoft.com>
Subject: [PATCH 02/16] memzone: fix use after free in tracing
Date: Fri, 27 Sep 2024 13:45:38 -0700 [thread overview]
Message-ID: <20240927204742.546164-3-stephen@networkplumber.org> (raw)
In-Reply-To: <20240927204742.546164-1-stephen@networkplumber.org>
Using the freed value for tracing is not a good idea.
Although it is harmless for tracing, it will cause analyzers to flag
this as unsafe.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
lib/eal/common/eal_common_memzone.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/lib/eal/common/eal_common_memzone.c b/lib/eal/common/eal_common_memzone.c
index 2d9b6aa3e3..90efbb621d 100644
--- a/lib/eal/common/eal_common_memzone.c
+++ b/lib/eal/common/eal_common_memzone.c
@@ -331,9 +331,10 @@ rte_memzone_free(const struct rte_memzone *mz)
rte_rwlock_write_unlock(&mcfg->mlock);
+ rte_eal_trace_memzone_free(name, addr, ret);
+
rte_free(addr);
- rte_eal_trace_memzone_free(name, addr, ret);
return ret;
}
--
2.45.2
next prev parent reply other threads:[~2024-09-27 20:48 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-27 20:45 [PATCH 00/16] Fix allocation issues and add hardening Stephen Hemminger
2024-09-27 20:45 ` [PATCH 01/16] eal: add function attributes for allocation functions Stephen Hemminger
2024-09-27 22:09 ` David Marchand
2024-09-27 23:10 ` Stephen Hemminger
2024-09-27 20:45 ` Stephen Hemminger [this message]
2024-09-27 20:45 ` [PATCH 03/16] cryptodev/bcmfs: fix mis-matched free Stephen Hemminger
2024-09-27 20:45 ` [PATCH 04/16] dma/ixd: fix incorrect free function in cleanup Stephen Hemminger
2024-09-27 20:45 ` [PATCH 05/16] event/cnxk: fix pointer mismatch " Stephen Hemminger
2024-09-27 20:45 ` [PATCH 06/16] examples/vhost: fix free function mismatch Stephen Hemminger
2024-09-27 20:45 ` [PATCH 07/16] net/cnxk: fix use-after-free Stephen Hemminger
2024-09-27 20:45 ` [PATCH 08/16] bpf: fix free mismatch if convert fails Stephen Hemminger
2024-09-27 20:45 ` [PATCH 09/16] net/e1000: fix use-after-free Stephen Hemminger
2024-09-27 20:45 ` [PATCH 10/16] net/sfc: fix use-after-free warning messages Stephen Hemminger
2024-09-27 20:45 ` [PATCH 11/16] net/cpfl: fix free of nonheap object Stephen Hemminger
2024-09-27 20:45 ` [PATCH 12/16] raw/ifpga/base: fix use after free Stephen Hemminger
2024-09-27 20:45 ` [PATCH 13/16] common/qat: " Stephen Hemminger
2024-09-27 20:45 ` [PATCH 14/16] drivers/ifpga: fix free function mismatch Stephen Hemminger
2024-09-27 20:45 ` [PATCH 15/16] eal: add alloc_function attribute to rte_malloc Stephen Hemminger
2024-09-27 20:45 ` [PATCH 16/16] mempool: annotate mempool create Stephen Hemminger
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