What’s Vulnerable › Vulnerabilities

CVE-2021-29265

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-26 · updated 2026-06-17
• Weakness: CWE-362

Description

An issue was discovered in the Linux kernel before 5.11.7. usbip_sockfd_store in drivers/usb/usbip/stub_dev.c allows attackers to cause a denial of service (GPF) because the stub-up sequence has race conditions during an update of the local and shared status, aka CID-9380afd6df70.

Affected products

• Debian Linux: 9.0
• Linux kernel: before 5.11.7 — fixed in 5.11.7

How to fix

Upgrade to a fixed version: Linux kernel 5.11.7. Check the vendor advisory for mitigations.

References

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.7
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9380afd6df70e24eacbdbde33afc6a3950965d22
• https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.11.7
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9380afd6df70e24eacbdbde33afc6a3950965d22
• https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html

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