From: Hanumanth Pothula <hpothula@marvell.com>
To: Jerin Jacob <jerinj@marvell.com>,
Pavan Nikhilesh <pbhagavatula@marvell.com>
Cc: <dev@dpdk.org>, <hkalra@marvell.com>,
<stephen@networkplumber.org>, <hpothula@marvell.com>
Subject: [PATCH v4 1/1] event/octeontx: fix possible integer overflow
Date: Fri, 25 Oct 2024 16:28:02 +0530 [thread overview]
Message-ID: <20241025105802.1099531-1-hpothula@marvell.com> (raw)
In-Reply-To: <20241024035524.1021926-1-hpothula@marvell.com>
The last argument passed to ssovf_parsekv() is an
unsigned char*, but it is accessed as an integer.
This can lead to an integer overflow.
Hence, make ensure the argument is accessed as a char
and for better error handling use strtol instead of atoi.
Bugzilla ID: 1512
Fixes: 3516327e00fd ("event/octeontx: add selftest to device arguments")
Signed-off-by: Hanumanth Pothula <hpothula@marvell.com>
---
v2: Use strtoul instead of strtol
v3: Add value boundry check. Here, value can be either 0 or 1.
v4: Commit text update
---
drivers/event/octeontx/ssovf_evdev.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/event/octeontx/ssovf_evdev.c b/drivers/event/octeontx/ssovf_evdev.c
index 3a933b1db7..957fcab04e 100644
--- a/drivers/event/octeontx/ssovf_evdev.c
+++ b/drivers/event/octeontx/ssovf_evdev.c
@@ -717,10 +717,20 @@ ssovf_close(struct rte_eventdev *dev)
}
static int
-ssovf_parsekv(const char *key __rte_unused, const char *value, void *opaque)
+ssovf_parsekv(const char *key, const char *value, void *opaque)
{
- int *flag = opaque;
- *flag = !!atoi(value);
+ uint8_t *flag = opaque;
+ uint64_t v;
+ char *end;
+
+ errno = 0;
+ v = strtoul(value, &end, 0);
+ if ((errno != 0) || (value == end) || *end != '\0' || v > 1) {
+ ssovf_log_err("invalid %s value %s", key, value);
+ return -EINVAL;
+ }
+
+ *flag = !!v;
return 0;
}
--
2.25.1
prev parent reply other threads:[~2024-10-25 10:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-10-18 7:59 [PATCH] event/octeontx: resolve " Hanumanth Pothula
2024-10-18 16:36 ` [EXTERNAL] " Pavan Nikhilesh Bhagavatula
2024-10-18 17:35 ` Stephen Hemminger
2024-10-23 7:15 ` [PATCH v2 1/1] " Hanumanth Pothula
2024-10-23 16:16 ` Stephen Hemminger
2024-10-23 20:29 ` [EXTERNAL] " Hanumanth Reddy Pothula
2024-10-24 3:55 ` [PATCH v3 " Hanumanth Pothula
2024-10-24 7:57 ` Ali Alnubani
2024-10-25 10:27 ` Jerin Jacob
2024-10-25 10:58 ` Hanumanth Pothula [this message]
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