diff mbox series

[5.10/5.15/6.1] Bluetooth: btbcm: Handle memory allocation failure in btbcm_get_board_name()

Message ID 20240917111422.33375-1-amishin@t-argos.ru (mailing list archive)
State New, archived
Headers show
Series [5.10/5.15/6.1] Bluetooth: btbcm: Handle memory allocation failure in btbcm_get_board_name() | expand

Checks

Context Check Description
tedd_an/pre-ci_am fail error: patch failed: drivers/bluetooth/btbcm.c:551 error: drivers/bluetooth/btbcm.c: patch does not apply hint: Use 'git am --show-current-patch' to see the failed patch

Commit Message

Aleksandr Mishin Sept. 17, 2024, 11:14 a.m. UTC
No upstream commit exists for this commit.

The issue was introduced with commit 63fac3343b99 ("Bluetooth: btbcm:
Support per-board firmware variants").

In btbcm_get_board_name() devm_kstrdup() can return NULL due to memory
allocation failure.

Add NULL return check to prevent NULL dereference.

Upstream branch code has been significantly refactored and can't be
backported directly.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 63fac3343b99 ("Bluetooth: btbcm: Support per-board firmware variants")
Signed-off-by: Aleksandr Mishin <amishin@t-argos.ru>
---
 drivers/bluetooth/btbcm.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

bluez.test.bot@gmail.com Sept. 17, 2024, 11:38 a.m. UTC | #1
This is an automated email and please do not reply to this email.

Dear Submitter,

Thank you for submitting the patches to the linux bluetooth mailing list.
While preparing the CI tests, the patches you submitted couldn't be applied to the current HEAD of the repository.

----- Output -----

error: patch failed: drivers/bluetooth/btbcm.c:551
error: drivers/bluetooth/btbcm.c: patch does not apply
hint: Use 'git am --show-current-patch' to see the failed patch

Please resolve the issue and submit the patches again.


---
Regards,
Linux Bluetooth
diff mbox series

Patch

diff --git a/drivers/bluetooth/btbcm.c b/drivers/bluetooth/btbcm.c
index de2ea589aa49..6191fd74ab3d 100644
--- a/drivers/bluetooth/btbcm.c
+++ b/drivers/bluetooth/btbcm.c
@@ -551,6 +551,8 @@  static const char *btbcm_get_board_name(struct device *dev)
 	/* get rid of any '/' in the compatible string */
 	len = strlen(tmp) + 1;
 	board_type = devm_kzalloc(dev, len, GFP_KERNEL);
+	if (!board_type)
+		return NULL;
 	strscpy(board_type, tmp, len);
 	for (i = 0; i < len; i++) {
 		if (board_type[i] == '/')