CVE-2022-48786

MEDIUM
Published Jul 16, 2024 Modified Oct 3, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: vsock: remove vsock from connected table when connect is interrupted by a signal vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list. Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add. Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y.

Is your site exposed to CVE-2022-48786?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/0bb88f3f7e8d506f3efe46d694964117e20efbfc https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608 https://git.kernel.org/stable/c/0bb88f3f7e8d506f3efe46d694964117e20efbfc https://git.kernel.org/stable/c/2910bcb9f67551a45397735e47b6d456eb8cd549 https://git.kernel.org/stable/c/5f326fe2aef411a6575628f92bd861463ea91df7 https://git.kernel.org/stable/c/787468ee7a435777521d33399d012fd591ae2f94 https://git.kernel.org/stable/c/87cd1bbd6677411e17369cd4b7389ab1e1fdba44 https://git.kernel.org/stable/c/addd62a8cb6fa90aa322365c62487da61f6baab8 https://git.kernel.org/stable/c/b9208492fcaecff8f43915529ae34b3bcb03877c https://git.kernel.org/stable/c/e3b3939fd137aab6d00d54bee0ee9244b286a608

Frequently Asked Questions

What is CVE-2022-48786? +
In the Linux kernel, the following vulnerability has been resolved: vsock: remove vsock from connected table when connect is interrupted by a signal vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list. Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add. Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2022-48786? +
CVE-2022-48786 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2022-48786? +
CVE-2022-48786 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2022-48786? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-9588 10.0

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Iron Mountain Archiving Services Inc. …
CVE-2025-57870 10.0

A SQL Injection vulnerability exists in Esri ArcGIS Server versions 11.3, 11.4 and 11.5 on Windows, Linux and Kubernetes. This …
CVE-2026-48286 10.0

Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization vulnerability that could result …
CVE-2026-13782 10.0

Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer …
CVE-2026-48449 10.0

Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the …
CVE-2026-48303 10.0

Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization vulnerability that could result …

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2022-48786 — free, no signup required.