[v5,25/25] devtools: check for some reentrant function
Checks
Commit Message
Multiple threads calling the same function may cause condition
race issues, which often leads to abnormal behavior and can cause
more serious vulnerabilities such as abnormal termination, denial
of service, and compromised data integrity.
This patch adds check in checkpatches.sh for strtok, which is
non-reentrant.
Cc: stable@dpdk.org
Signed-off-by: Jie Hai <haijie1@huawei.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
---
devtools/checkpatches.sh | 8 ++++++++
1 file changed, 8 insertions(+)
@@ -145,6 +145,14 @@ check_forbidden_additions() { # <patch>
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
+ # refrain from using some non-reentrant functions
+ awk -v FOLDERS="lib drivers app examples" \
+ -v EXPRESSIONS="strtok\\\(" \
+ -v RET_ON_FAIL=1 \
+ -v MESSAGE='Using non-reentrant function strtok, prefer strtok_r' \
+ -f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
+ "$1" || res=1
+
# refrain from using some pthread functions
awk -v FOLDERS="lib drivers app examples" \
-v EXPRESSIONS="pthread_(create|join|detach|set(_?name_np|affinity_np)|attr_set(inheritsched|schedpolicy))\\\(" \