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Review reviewHigh

CVE-2022-49952

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix memory corruption on probe Add the missing sanity check on the probed-session count to avoid corrupting memory beyond the fixed-size slab-allocated session array when there are more than FASTRPC_MAX_SESSIONS sessions defined in the devicetree.

CVSS
7.8
EPSS
0.21%
10.8% percentile
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

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix memory corruption on probe Add the missing sanity check on the probed-session count to avoid corrupting memory beyond the fixed-size slab-allocated session array when there are more than FASTRPC_MAX_SESSIONS sessions defined in the devicetree.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < ec186b9f4aa2e6444d5308a6cc268aada7007639, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < c99bc901d5eb9fbdd7bd39f625e170ce97390336, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < 0e33b0f322fecd7a92d9dc186535cdf97940a856, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < c0425c2facd9166fa083f90c9f3187ace0c7837a, >= f6f9279f2bf0e37e2f1fb119d8832b8568536a04 < 9baa1415d9abdd1e08362ea2dcfadfacee8690b5, >= 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. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 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