Not yet scoredPublished Oct 22, 2025

CVE-2022-50575xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()

Updated under an hour ago (Oct 27, 2026, 7:10 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource() As 'kdata.num' is user-controlled data, if user tries to allocate memory larger than(>=) MAX_ORDER, then kcalloc() will fail, it creates a stack trace and messes up dmesg with a warning. Call trace: -> privcmd_ioctl --> privcmd_ioctl_mmap_resource Add __GFP_NOWARN in order to avoid too large allocation warning. This is detected by static analysis using smatch.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 3ad0876554cafa368f574d4d408468510543e9ff before 5d68ae32d132ea2af73bc223fd64c46f85302a8b; from 3ad0876554cafa368f574d4d408468510543e9ff before 4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5; from 3ad0876554cafa368f574d4d408468510543e9ff before 46026bb057c35f5bb111bf95e00cd8366d2e34d4; 3ad0876554cafa368f574d4d408468510543e9ff builds before 0bf874183b32eae2cc20e3c5be38ec3d33e7e564; from 3ad0876554cafa368f574d4d408468510543e9ff before e0c5f1058ed96f2b7487560c4c4cbd768d13d065; from 3ad0876554cafa368f574d4d408468510543e9ff before 4da411086f5ab32f811a89ef804980ec106ebb65; from 3ad0876554cafa368f574d4d408468510543e9ff before 8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79	CNA record

References

References

https://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b
https://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5
https://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4
https://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564
https://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065
https://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65
https://git.kernel.org/stable/c/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.