CVE-2022-50575xen/privcmd: Fix a possible warning in privcmd_ioctl_mmap_resource()
- —Not scoredno CVSS score yet
- 0.22%Exploitation in 30 daysEPSS · top 87% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
Published
- 7 months later
· 7 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.22% · top 87% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 3ad0876554cafa368f574d4d408468510543e9ff – < 5d68ae32d132ea2af73bc223fd64c46f85302a8b
- affected 3ad0876554cafa368f574d4d408468510543e9ff – < 4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5
- affected 3ad0876554cafa368f574d4d408468510543e9ff – < 46026bb057c35f5bb111bf95e00cd8366d2e34d4
- affected 3ad0876554cafa368f574d4d408468510543e9ff – < 0bf874183b32eae2cc20e3c5be38ec3d33e7e564
- affected 3ad0876554cafa368f574d4d408468510543e9ff – < e0c5f1058ed96f2b7487560c4c4cbd768d13d065
- affected 3ad0876554cafa368f574d4d408468510543e9ff – < 4da411086f5ab32f811a89ef804980ec106ebb65
- affected 3ad0876554cafa368f574d4d408468510543e9ff – < 8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79
- affected 4.18
- unaffected < 4.18
- unaffected 4.19.270 – ≤ 4.19.*
- unaffected 5.4.229 – ≤ 5.4.*
- unaffected 5.10.163 – ≤ 5.10.*
- unaffected 5.15.86 – ≤ 5.15.*
- unaffected 6.0.16 – ≤ 6.0.*
- unaffected 6.1.2 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References
References7
- https://git.kernel.org/stable/c/5d68ae32d132ea2af73bc223fd64c46f85302a8b (opens in a new tab)
- https://git.kernel.org/stable/c/4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5 (opens in a new tab)
- https://git.kernel.org/stable/c/46026bb057c35f5bb111bf95e00cd8366d2e34d4 (opens in a new tab)
- https://git.kernel.org/stable/c/0bf874183b32eae2cc20e3c5be38ec3d33e7e564 (opens in a new tab)
- https://git.kernel.org/stable/c/e0c5f1058ed96f2b7487560c4c4cbd768d13d065 (opens in a new tab)
- https://git.kernel.org/stable/c/4da411086f5ab32f811a89ef804980ec106ebb65 (opens in a new tab)
- https://git.kernel.org/stable/c/8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-55653 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2022-50575)Record last updated .