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

Deferred
AliasesUBUNTU-CVE-2022-50575DEBIAN-CVE-2022-50575
Published 22-10-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-50575 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.5% of scored vulnerabilities.

Priority
Insufficient evidence

No CVSS vector published; no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.22%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
SUSE-SU-2025:4111-1SUSE-SU-2025:4139-1SUSE-SU-2025:4149-1SUSE-SU-2025:4320-1

Timeline

  1. 22-10-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.22% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: not stated in public data.

Ubuntu115 products
  • linux< 5.4.0-144.161 | < 5.15.0-69.76
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1097.105 | < 5.15.0-1033.37
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.4-1
Linux1 product
  • linux≥ 3ad0876554cafa368f574d4d408468510543e9ff, < 5d68ae32d132ea2af73bc223fd64c46f85302a8b | ≥ 3ad0876554cafa368f574d4d408468510543e9ff, < 4f983ee5e5de924d93a7bbb4e6f68f38c6256cd5 | ≥ 3ad0876554cafa368f574d4d408468510543e9ff, < 46026bb057c35f5bb111bf95e00cd8366d2e34d4 | ≥ 3ad0876554cafa368f574d4d408468510543e9ff, < 0bf874183b32eae2cc20e3c5be38ec3d33e7e564 | ≥ 3ad0876554cafa368f574d4d408468510543e9ff, < e0c5f1058ed96f2b7487560c4c4cbd768d13d065 | ≥ 3ad0876554cafa368f574d4d408468510543e9ff, < 4da411086f5ab32f811a89ef804980ec106ebb65 | ≥ 3ad0876554cafa368f574d4d408468510543e9ff, < 8b997b2bb2c53b76a6db6c195930e9ab8e4b0c79 | 4.18

3 vendors · 117 products

References

11 links
Show all 11 references