This is a note to let you know that I've just added the patch titled
misc: fastrpc: check return value of devm_kasprintf()
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
misc-fastrpc-check-return-value-of-devm_kasprintf.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c5544b9db03572cd8105b8b23d704165fbd484de
Author: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Date: Thu Jun 15 13:25:46 2023 +0300
misc: fastrpc: check return value of devm_kasprintf()
[ Upstream commit af2e19d82a116bc622eea84c9faadd5f7e20bec4 ]
devm_kasprintf() returns a pointer to dynamically allocated memory.
Pointer could be NULL in case allocation fails. Check pointer validity.
Identified with coccinelle (kmerr.cocci script).
Fixes: 3abe3ab3cdab ("misc: fastrpc: add secure domain support")
Signed-off-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230615102546.581899-1-claudiu.beznea@xxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 30d4d0476248f..9051551d99373 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -2225,6 +2225,9 @@ static int fastrpc_device_register(struct device *dev, struct fastrpc_channel_ct
fdev->miscdev.fops = &fastrpc_fops;
fdev->miscdev.name = devm_kasprintf(dev, GFP_KERNEL, "fastrpc-%s%s",
domain, is_secured ? "-secure" : "");
+ if (!fdev->miscdev.name)
+ return -ENOMEM;
+
err = misc_register(&fdev->miscdev);
if (!err) {
if (is_secured)
