5.5

CVE-2025-22063: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2025-22063DEBIAN-CVE-2025-22063
Published 16-04-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2025-22063 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 21.1% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 55 · Related 50
DLA-4178-1DLA-4193-1DSA-5907-1MGASA-2025-0142MGASA-2025-0146SUSE-SU-2025:01919-1

Timeline

  1. 16-04-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: netlabel: Fix NULL pointer exception caused by CALIPSO on IPv4 sockets When calling netlbl_conn_setattr(), addr->sa_family is used to determine the function behavior. If sk is an IPv4 socket, but the connect function is called with an IPv6 address, the function calipso_sock_setattr() is triggered. Inside this function, the following code is executed: sk_fullsock(__sk) ? inet_sk(__sk)->pinet6 : NULL; Since sk is an IPv4 socket, pinet6 is NULL, leading to a null pointer dereference. This patch fixes the issue by checking if inet6_sk(sk) returns a NULL pointer before accessing pinet6.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

21%

Versus all other CVEs

30-day change

0.00 pp

From 0.30% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.30%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu136 products
  • linuxAll versions (No fix recorded) | < 5.4.0-218.238 | < 5.15.0-142.152 | < 6.8.0-86.87
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1147.157 | < 5.15.0-1086.93 | < 6.8.0-1041.43
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 1ad9166cab6a0f5c0b10344a97bdf749ae11dcbf | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 1e38f7a6cdd68377f8a4189b2fbaec14a6dd5152 | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < a7e89541d05b98c79a51c0f95df020f8e82b62ed | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 797e5371cf55463b4530bab3fef5f27f7c6657a8 | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 1927d0bcd5b81e80971bf6b8eba267508bd1c78b | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 3ba9cf69de50e8abed32b448616c313baa4c5712 | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 9fe3839588db7519030377b7dee3f165e654f6c5 | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 172a8a996a337206970467e871dd995ac07640b1 | ≥ ceba1832b1b2da0149c51de62a847c00bca1677a, < 078aabd567de3d63d37d7673f714e309d369e6e2 | 4.8
  • linux_kernel≥ 4.8, < 5.4.292 | ≥ 5.5, < 5.10.236 | ≥ 5.11, < 5.15.180 | ≥ 5.16, < 6.1.134 | ≥ 6.2, < 6.6.87 | ≥ 6.7, < 6.12.23 | ≥ 6.13, < 6.13.11 | ≥ 6.14, < 6.14.2
Debian1 product
  • linux< 6.1.135-1 | < 6.12.25-1

3 vendors · 139 products

References

54 links
Show all 54 references