dpdk/0279-compressdev-fix-empty-devargs-parsing.patch
chenjiji09 28f243f30b fix empty devargs parsing
Sync some patchs from upstreaming and modifies are as
follow:
1. The rte_kvargs_process() was used to parse KV pairs, it
also supports to parse 'only keys' type. And the callback
function parameter 'value' is NULL when parsed 'only keys'.
This patch fixes segment fault when parse input args with
'only keys'.
2. The MAP_FAILED should be used to determine whether the
mapping is successful but not NULL. This patch fix it.

(cherry picked from commit dfaed15bf9253e6b71dda7639806c0b265164a9e)
2023-04-29 07:48:24 +08:00

53 lines
1.7 KiB
Diff

From 37b765efbca81e4aa81fcb685e7810398e800e29 Mon Sep 17 00:00:00 2001
From: Chengwen Feng <fengchengwen@huawei.com>
Date: Thu, 2 Mar 2023 07:50:05 +0000
Subject: compressdev: fix empty devargs parsing
[ upstream commit bb27182482d61777de6a38b16a1d2c692c2c3f8b ]
The rte_kvargs_process() was used to parse KV pairs, it also supports
to parse 'only keys' (e.g. socket_id) type. And the callback function
parameter 'value' is NULL when parsed 'only keys'.
This patch fixes segment fault in rte_compressdev_pmd_parse_uint_arg()
when parse input args with 'only keys' (e.g. socket_id).
For a similar reason, this patch fixes
rte_compressdev_pmd_parse_name_arg().
Fixes: ed7dd94f7f66 ("compressdev: add basic device management")
Cc: stable@dpdk.org
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
---
lib/compressdev/rte_compressdev_pmd.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/lib/compressdev/rte_compressdev_pmd.c b/lib/compressdev/rte_compressdev_pmd.c
index 7f500d76d4..6a11a396b7 100644
--- a/lib/compressdev/rte_compressdev_pmd.c
+++ b/lib/compressdev/rte_compressdev_pmd.c
@@ -20,6 +20,9 @@ rte_compressdev_pmd_parse_name_arg(const char *key __rte_unused,
struct rte_compressdev_pmd_init_params *params = extra_args;
int n;
+ if (value == NULL || extra_args == NULL)
+ return -EINVAL;
+
n = strlcpy(params->name, value, RTE_COMPRESSDEV_NAME_MAX_LEN);
if (n >= RTE_COMPRESSDEV_NAME_MAX_LEN)
return -EINVAL;
@@ -37,6 +40,9 @@ rte_compressdev_pmd_parse_uint_arg(const char *key __rte_unused,
int i;
char *end;
+ if (value == NULL || extra_args == NULL)
+ return -EINVAL;
+
errno = 0;
i = strtol(value, &end, 10);
if (*end != 0 || errno != 0 || i < 0)
--
2.23.0