CVE-2026-93118
CVE CVE-2026-93118EUVD EUVD-2026-82226Published 2026-09-17T16:11:25.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: aspeed_udc: check endpoint DMA allocation ast_udc_probe() allocates a coherent DMA buffer used as the backing store for endpoint buffers. ast_udc_init_ep() derives per-endpoint buffer pointers from udc->ep0_buf, so a failed allocation is dereferenced during probe. Check the allocation before endpoint setup. The existing probe error path called ast_udc_remove(), which unregisters the gadget unconditionally and is not safe before usb_add_gadget_udc() succeeds. Add a local cleanup helper for probe failures so pre-registration failures only unwind the resources that were actually initialized. This was found by a local static analysis checker for unchecked allocator returns while scanning Linux 6.16. The change was checked by applying it to current mainline and by running checkpatch. I do not have access to Aspeed UDC hardware, so no runtime testing was performed.
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 055276c1320564b0192b3af323b8cc67f9b665e1 <9e6f57107c1886052d4baaa047a2bc3d0e91be5d; patch: 6.1.188; 055276c1320564b0192b3af323b8cc67f9b665e1 <97cee53a94be3bd4fd8fbed6071bd2f32dad1ab1; patch: 6.18.52; patch: 7.2.6; 6.0; 055276c1320564b0192b3af323b8cc67f9b665e1 <4aaad88f857498ed1294f061f0b25d27ae891c55; patch: 0; patch: 7.3-rc1; 055276c1320564b0192b3af323b8cc67f9b665e1 <6182e708e2e1f55521c8a01d7535630ecc2d7df9; patch: 6.6.157; patch: 6.12.110; 055276c1320564b0192b3af323b8cc67f9b665e1 <ff6e88e29965bd06f640e59acdcf0bbf04a7f55c; 055276c1320564b0192b3af323b8cc67f9b665e1 <d7ae1a48e70e9c3451b7dc7bc3896c82884bc4df
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
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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