What’s Vulnerable › Vulnerabilities

CVE-2026-90034: usb: image: mdc800: change kmalloc() to kzalloc()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-16 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: usb: image: mdc800: change kmalloc() to kzalloc() Change the kmalloc() calls in usb_mdc800_init() for irq_urb_buffer and download_urb_buffer to kzalloc(), avoiding potential stack leaks if a shorter message is received in mdc800_usb_irq() and mdc800_usb_download_notify()

Affected products

• Linux kernel: 2.6.12 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/2430eb81e44111b30eeb5273bbcf8b24ca517ef9
• https://git.kernel.org/stable/c/2df8f7720ed91f1aad4f128553b6e90c7c5fac1e
• https://git.kernel.org/stable/c/553c375e86a49882e95840565512e17bff31cc3a
• https://git.kernel.org/stable/c/67c6726dd6048a2781aa43a2bf9fcf1e16ee3a7d
• https://git.kernel.org/stable/c/6c601410d1a9ae645f604fe2f61b9f4942c77dfb
• https://git.kernel.org/stable/c/838455cc8bfe1278150d1d776529edea6cd4c1dd
• https://git.kernel.org/stable/c/8c38049879f2108f57c98f03cc7f3db51a12bdab
• https://git.kernel.org/stable/c/e22428f0c038c23109c0383a235aa607b0cd4c95

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