CVE-2024-26760: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: target: pscsi: Fix bio_put() for error case As of commit 066ff571011d ("block: turn bio_kmalloc into a simple kmalloc wrapper"), a bio allocated by bio_kmalloc() must be freed by bio_uninit() and kfree(). That is not done properly for the error case, hitting WARN and NULL pointer dereference in bio_free().

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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

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.19 — 6.1.80
linux	linux_kernel	6.2 — 6.6.19
linux	linux_kernel	6.7 — 6.7.7
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/1cfe9489fb563e9a0c9cdc5ca68257a44428c2ec https://git.kernel.org/stable/c/4ebc079f0c7dcda1270843ab0f38ab4edb8f7921 https://git.kernel.org/stable/c/de959094eb2197636f7c803af0943cb9d3b35804 https://git.kernel.org/stable/c/f49b20fd0134da84a6bd8108f9e73c077b7d6231 https://git.kernel.org/stable/c/1cfe9489fb563e9a0c9cdc5ca68257a44428c2ec https://git.kernel.org/stable/c/4ebc079f0c7dcda1270843ab0f38ab4edb8f7921 https://git.kernel.org/stable/c/de959094eb2197636f7c803af0943cb9d3b35804 https://git.kernel.org/stable/c/f49b20fd0134da84a6bd8108f9e73c077b7d6231

Frequently Asked Questions

What is CVE-2024-26760? +

In the Linux kernel, the following vulnerability has been resolved: scsi: target: pscsi: Fix bio_put() for error case As of commit 066ff571011d ("block: turn bio_kmalloc into a simple kmalloc wrapper"), a bio allocated by bio_kmalloc() must be freed by bio_uninit() and kfree(). That is not done properly for the error case, hitting WARN and NULL pointer dereference in bio_free(). It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26760? +

CVE-2024-26760 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-2024-26760? +

CVE-2024-26760 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-2024-26760? +

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.

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CVE-2024-26760