Medium 5.5Published Jul 25, 2026

CVE-2026-64349usb: dwc3: fix dwc3_readl() and dwc3_writel() calls in dwc3_ulpi_setup()

Updated under an hour ago (Oct 27, 2026, 2:50 AM ET)

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In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: fix dwc3_readl() and dwc3_writel() calls in dwc3_ulpi_setup() The dwc3_ulpi_setup() calls the register read and write calls with dwc3->regs when both these calls take the dwc3 structure directly. Chnage these two calls to fix the following sparse warning, and possibly a nasty bug in the dwc3_ulpi_setup() code: drivers/usb/dwc3/core.c:796:45: warning: incorrect type in argument 1 (different address spaces) drivers/usb/dwc3/core.c:796:45: expected struct dwc3 *dwc drivers/usb/dwc3/core.c:796:45: got void [noderef] __iomem *regs drivers/usb/dwc3/core.c:798:40: warning: incorrect type in argument 1 (different address spaces) drivers/usb/dwc3/core.c:798:40: expected struct dwc3 *dwc drivers/usb/dwc3/core.c:798:40: got void [noderef] __iomem *regs

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	476ee6389120e1900290b46081b3a12b54e05672 builds before 41a4e80d5af04855e68ac88f5e2cd07fa67287f8; from 9accc68b1cf0a2b220f51d53641128bb32598070 before 4349e487a1149ff33b65d53427b8aca57f2e4578; from 9accc68b1cf0a2b220f51d53641128bb32598070 before e0f844d9d74200d311c6438a0f04270834ba5365; from 6.18.32 before 6.18.40	CNA record
linux linux_kernel linux:linux_kernel	from 6.18.32 before 6.18.40; from 7.0 before 7.1.4; 7.2; 7.2	NVD

References

References

https://git.kernel.org/stable/c/41a4e80d5af04855e68ac88f5e2cd07fa67287f8	patch
https://git.kernel.org/stable/c/4349e487a1149ff33b65d53427b8aca57f2e4578	patch
https://git.kernel.org/stable/c/e0f844d9d74200d311c6438a0f04270834ba5365	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.