In the Linux kernel, the following vulnerability has been resolved:
xhci: sideband: fix ring sg table pages leak
xhci_ring_to_sgtable() allocates a temporary pages array and
uses it to build the returned sg_table with
sg_alloc_table_from_pages(). The error paths free the pages array, but the success path
returns the sg_table without freeing it. This leaks the temporary
array every time a sideband client gets an endpoint or event ring
buffer.
Free the pages array after sg_alloc_table_from_pages() succeeds. The returned sg_table has its own scatterlist entries and does not
depend on the temporary array after construction.
References 3
https://git.kernel.org/stable/c/49f6e3c3ef19f04f6657ed8dce550e36c763abb8
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/99d00a9e35e311a91d258029d5bb584377296c34
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a3eaf82ff842d6ca95937ea584417e04828235a6
416baaa9-dc9f-4396-8d5f-8c081fb06d67