CVE-2023-52787: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: blk-mq: make sure active queue usage is held for bio_integrity_prep() blk_integrity_unregister() can come if queue usage counter isn't held for one bio with integrity prepared, so this request may be completed with calling profile->complete_fn, then kernel panic. Another constraint is that bio_integrity_prep() needs to be called before bio merge. Fix the issue by: - call bio_integrity_prep() with one queue usage counter grabbed reliably - call bio_integrity_prep() before bio merge

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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

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.16 — 6.1.72
linux	linux_kernel	6.2 — 6.5.13
linux	linux_kernel	6.6 — 6.6.3
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/b0077e269f6c152e807fdac90b58caf012cdbaab https://git.kernel.org/stable/c/b5c8e0ff76d10f6bf70a7237678f27c20cf59bc9 https://git.kernel.org/stable/c/b80056bd75a16e4550873ecefe12bc8fd190b1cf https://git.kernel.org/stable/c/e9c309ded295b7f8849097d71ae231456ca79f78 https://git.kernel.org/stable/c/b0077e269f6c152e807fdac90b58caf012cdbaab https://git.kernel.org/stable/c/b5c8e0ff76d10f6bf70a7237678f27c20cf59bc9 https://git.kernel.org/stable/c/b80056bd75a16e4550873ecefe12bc8fd190b1cf https://git.kernel.org/stable/c/e9c309ded295b7f8849097d71ae231456ca79f78

Frequently Asked Questions

What is CVE-2023-52787? +

In the Linux kernel, the following vulnerability has been resolved: blk-mq: make sure active queue usage is held for bio_integrity_prep() blk_integrity_unregister() can come if queue usage counter isn't held for one bio with integrity prepared, so this request may be completed with calling profile->complete_fn, then kernel panic. Another constraint is that bio_integrity_prep() needs to be called before bio merge. Fix the issue by: - call bio_integrity_prep() with one queue usage counter grabbed reliably - call bio_integrity_prep() before bio merge It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52787? +

CVE-2023-52787 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-2023-52787? +

CVE-2023-52787 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-2023-52787? +

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-2023-52787