6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
[ Upstream commit 7569406e95f2353070d88ebc88e8c13698542317 ]
The function thermal_genl_auto() does not free the allocated message
in the error path. Fix that by putting a out label and jump to it
which will free the message instead of directly returning an error.
Fixes: 47c4b0de080a ("tools/lib/thermal: Add a thermal library")
Reported-by: Lukasz Luba <lukasz.luba@xxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Reviewed-by: Lukasz Luba <lukasz.luba@xxxxxxx>
Link: https://patch.msgid.link/20241024105938.1095358-1-daniel.lezcano@xxxxxxxxxx
[ rjw: Fixed up the !msg error path, added Fixes tag ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/lib/thermal/commands.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/tools/lib/thermal/commands.c b/tools/lib/thermal/commands.c
index a9223df91dcf5..27b4442f0e347 100644
--- a/tools/lib/thermal/commands.c
+++ b/tools/lib/thermal/commands.c
@@ -279,6 +279,7 @@ static thermal_error_t thermal_genl_auto(struct thermal_handler *th, cmd_cb_t cm
struct cmd_param *param,
int cmd, int flags, void *arg)
{
+ thermal_error_t ret = THERMAL_ERROR;
struct nl_msg *msg;
void *hdr;
@@ -289,17 +290,19 @@ static thermal_error_t thermal_genl_auto(struct thermal_handler *th, cmd_cb_t cm
hdr = genlmsg_put(msg, NL_AUTO_PORT, NL_AUTO_SEQ, thermal_cmd_ops.o_id,
0, flags, cmd, THERMAL_GENL_VERSION);
if (!hdr)
- return THERMAL_ERROR;
+ goto out;
if (cmd_cb && cmd_cb(msg, param))
- return THERMAL_ERROR;
+ goto out;
if (nl_send_msg(th->sk_cmd, th->cb_cmd, msg, genl_handle_msg, arg))
- return THERMAL_ERROR;
+ goto out;
+ ret = THERMAL_SUCCESS;
+out:
nlmsg_free(msg);
- return THERMAL_SUCCESS;
+ return ret;
}
thermal_error_t thermal_cmd_get_tz(struct thermal_handler *th, struct thermal_zone **tz)
--
2.43.0
