In the Linux kernel, the following vulnerability has been resolved:

usb: gadget: printer: fix infinite loop in printer_read()

printer_read() uses the same variable for the requested copy size and
the number of bytes actually copied to user space. copy_to_user()
returns the number of bytes not copied, so when it fails to copy
anything, the computed copied length becomes zero.

In that case len, buf, current_rx_bytes and current_rx_buf are left
unchanged. If RX data is available and the user buffer remains
unwritable, the read loop can repeat indefinitely.

Track the copied length separately and return -EFAULT, or the number of
bytes already copied, if an iteration makes no progress.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
b185f01a9ab7af586133be2555298e960237359b affected < 994afccfdcceb73be33f69a8a8ea71e260c9eca5
b185f01a9ab7af586133be2555298e960237359b affected < e03597ad9494b500344076589aeaa6c6d2d381d3
b185f01a9ab7af586133be2555298e960237359b affected < 4cde0b38cc0cb8b7dc17295801015148de37d1d2
b185f01a9ab7af586133be2555298e960237359b affected < e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e
b185f01a9ab7af586133be2555298e960237359b affected < c2e819be6a5c7f34344926b4bd7e3dfca58cf48a
Linux Linux affected
Version Status Constraints
4.1 affected —
0 unaffected < 4.1
6.6.148 unaffected ≤ 6.6.*
6.12.101 unaffected ≤ 6.12.*
6.18.42 unaffected ≤ 6.18.*
7.1.6 unaffected ≤ 7.1.*
7.2-rc5 unaffected ≤ *

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Fixes

Solution

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Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/4cde0b38cc0cb8b7dc17295801015148de37d1d2 cve-icon
https://git.kernel.org/stable/c/994afccfdcceb73be33f69a8a8ea71e260c9eca5 cve-icon
https://git.kernel.org/stable/c/c2e819be6a5c7f34344926b4bd7e3dfca58cf48a cve-icon
https://git.kernel.org/stable/c/e03597ad9494b500344076589aeaa6c6d2d381d3 cve-icon
https://git.kernel.org/stable/c/e41bbbbb1740ce4d7270ab1cdeca13892d6a8d2e cve-icon
History

Mon, 10 Aug 2026 17:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-909

Mon, 10 Aug 2026 12:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: usb: gadget: printer: fix infinite loop in printer_read() printer_read() uses the same variable for the requested copy size and the number of bytes actually copied to user space. copy_to_user() returns the number of bytes not copied, so when it fails to copy anything, the computed copied length becomes zero. In that case len, buf, current_rx_bytes and current_rx_buf are left unchanged. If RX data is available and the user buffer remains unwritable, the read loop can repeat indefinitely. Track the copied length separately and return -EFAULT, or the number of bytes already copied, if an iteration makes no progress.
Title usb: gadget: printer: fix infinite loop in printer_read()
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-10T12:03:46.845Z

Reserved: 2026-07-30T09:28:09.386Z

Link: CVE-2026-68369

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-10T17:30:17Z

Weaknesses