Review reviewHigh

CVE-2022-49950

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix memory corruption on open The probe session-duplication overflow check incremented the session count also when there were no more available sessions so that memory beyond the fixed-size slab-allocated session array could be corrupted in fastrpc_session_alloc() on open().

CVSS: 7.8
EPSS: 0.21%
CISA KEV: Not listed
Published: 2025.06.18

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.21%

Technical severityCVSS 7.8

Vulnerability overview

Affected product and versions

Product: Linux Linux, linux kernel
Affected versions: >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < f8632b8bb53ebc005d8f24a68a0c1f9678c0e908, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < 5cf2a57c7a01a0d7bdecf875a63682f542891b1b, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < cf20c3533efc89578ace94fa20a9e63446223c72, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < e0578e603065f120a8759b75e0d6c216c7078a39, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < d245f43aab2b61195d8ebb64cef7b5a08c590ab4, >= 5.1, >= 5.1 < 5.4.213, >= 5.5 < 5.10.142, >= 5.11 < 5.15.66, >= 5.16 < 5.19.8, 6.0
Fixed versions: 5.4.213, 5.10.142, 5.15.66, 5.19.8

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Linux Linux, linux kernel and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-787