In the Linux kernel, the following vulnerability has been resolved:
net: qrtr: fix node refcount leak on ctrl packet alloc failure
qrtr_send_resume_tx() calls qrtr_node_lookup() which takes a
reference on the returned node. If the subsequent call to
qrtr_alloc_ctrl_packet() fails due to memory allocation failure, the
function returns -ENOMEM without calling qrtr_node_release() to
release the node reference.
Add qrtr_node_release(node) before returning on the allocation failure
path to properly release the reference.
References 3
https://git.kernel.org/stable/c/3b09ff54114566864eea59020f6b69c5bb325b9d
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/477353db343663d5502ca442c6de785d2f23f273
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9d969c98732a4d42212ec580dd5bbad53f246103
416baaa9-dc9f-4396-8d5f-8c081fb06d67