CVE-2026-63903

CVE CVE-2026-63903EUVD EUVD-2026-45676Published 2026-07-19T14:55:10.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: USB: serial: belkin_sa: validate interrupt status length The Belkin interrupt callback treats interrupt data as a four-byte status report and reads LSR/MSR fields at offsets 2 and 3. The interrupt-in buffer length is derived from endpoint wMaxPacketSize, and short interrupt transfers may complete successfully with a smaller actual_length. Check the completed interrupt packet length before parsing status fields so short interrupt endpoints and short successful packets are ignored instead of causing out-of-bounds or stale status-byte reads. KASAN report as below: BUG: KASAN: slab-out-of-bounds in belkin_sa_read_int_callback() Read of size 1 Call trace: belkin_sa_read_int_callback() (drivers/usb/serial/belkin_sa.c:202) __usb_hcd_giveback_urb() (drivers/usb/core/hcd.c:1630) dummy_timer() (?:?)

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f361359a952da15e70e693c2d7dca5c5843eae3e; patch: 5.15.210; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <22823a319fb2afdf02cacafbed8b613b757efbc8; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <37e54d1b986df35c936d81e5b59a7aa3ec6938f0; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <f1617539ab90e67da788959bfd314076f093a11a; 2.6.12; patch: 6.6.143; patch: 0; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <4ce058df2ee02cc2a0f0fd5cd64ce6f1482a0b65; patch: 6.12.93; patch: 7.0.12; patch: 6.1.176; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <ffb739a49186ea784bbd9cb91b647f062395b419; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6a4602221cba7a738442328d66a2f0b1c9bf6e17; patch: 6.18.35; 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <db1e7eb6203d534dad64cac2c793b69e561e657b; patch: 5.10.259; patch: 7.1

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

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Linux — Linux

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