7.8

CVE-2022-48786: vsock: remove vsock from connected table when connect is interrupted by a signal

Modified
AliasesRHSA-2024:10273UBUNTU-CVE-2022-48786DEBIAN-CVE-2022-48786
Published 16-07-2024Last modified 05-08-2026

Vulnerability summary

CVE-2022-48786 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 16.6% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
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 12 · Related 8
RHSA-2022:7683RHSA-2022:8267RHSA-2024:6990RHSA-2024:6991SUSE-SU-2024:2894-1SUSE-SU-2024:2902-1

Timeline

  1. 16-07-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: vsock: remove vsock from connected table when connect is interrupted by a signal vsock_connect() expects that the socket could already be in the TCP_ESTABLISHED state when the connecting task wakes up with a signal pending. If this happens the socket will be in the connected table, and it is not removed when the socket state is reset. In this situation it's common for the process to retry connect(), and if the connection is successful the socket will be added to the connected table a second time, corrupting the list. Prevent this by calling vsock_remove_connected() if a signal is received while waiting for a connection. This is harmless if the socket is not in the connected table, and if it is in the table then removing it will prevent list corruption from a double add. Note for backporting: this patch requires d5afa82c977e ("vsock: correct removal of socket from the list"), which is in all current stable trees except 4.9.y.

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

17%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.25% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu93 products
  • linuxAll versions (No fix recorded) | < 4.15.0-177.186 | < 5.4.0-110.124
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1128.137 | < 5.4.0-1073.78
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Redhat33 products
  • bpftool< 0:4.18.0-372.131.1.el8_6
  • bpftool-debuginfo< 0:4.18.0-372.131.1.el8_6
  • kernel< 0:4.18.0-372.131.1.el8_6
  • kernel-abi-stablelists< 0:4.18.0-372.131.1.el8_6
  • kernel-core< 0:4.18.0-372.131.1.el8_6
Linux2 products
  • linux≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 0bb88f3f7e8d506f3efe46d694964117e20efbfc | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < e3b3939fd137aab6d00d54bee0ee9244b286a608 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 2910bcb9f67551a45397735e47b6d456eb8cd549 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 5f326fe2aef411a6575628f92bd861463ea91df7 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 87cd1bbd6677411e17369cd4b7389ab1e1fdba44 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < 787468ee7a435777521d33399d012fd591ae2f94 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < addd62a8cb6fa90aa322365c62487da61f6baab8 | ≥ d021c344051af91f42c5ba9fdedc176740cbd238, < b9208492fcaecff8f43915529ae34b3bcb03877c | 3.9
  • linux_kernel≥ 3.9, < 4.9.303 | ≥ 4.10, < 4.14.268 | ≥ 4.15, < 4.19.231 | ≥ 4.20, < 5.4.181 | ≥ 5.5, < 5.10.102 | ≥ 5.11, < 5.15.25 | ≥ 5.16, < 5.16.11 | 5.17:rc1 | 5.17:rc2 | 5.17:rc3 | 5.17:rc4
Debian1 product
  • linux< 5.16.11-1

4 vendors · 129 products

References

19 links
Show all 19 references