CVE-2026-64464
Description
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.
How to fix
- Linux Linux99d00a9e35e311a91d258029d5bb584377296c34, a3eaf82ff842d6ca95937ea584417e04828235a6, 49f6e3c3ef19f04f6657ed8dce550e36c763abb8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | de66754e9f8029f8ae955a588959b99cab56b506 ≤ v < 99d00a9e35e311a91d258029d5bb584377296c34, de66754e9f8029f8ae955a588959b99cab56b506 ≤ v < a3eaf82ff842d6ca95937ea584417e04828235a6, de66754e9f8029f8ae955a588959b99cab56b506 ≤ v < 49f6e3c3ef19f04f6657ed8dce550e36c763abb8, 6.16 | 99d00a9e35e311a91d258029d5bb584377296c34, a3eaf82ff842d6ca95937ea584417e04828235a6, 49f6e3c3ef19f04f6657ed8dce550e36c763abb8 |
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