SECUFOCUSNOW
Home›CVE index›CVE-2022-49789
Review reviewHigh

CVE-2022-49789

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: scsi: zfcp: Fix double free of FSF request when qdio send fails We used to use the wrong type of integer in 'zfcp_fsf_req_send()' to cache the FSF request ID when sending a new FSF request. This is used in case the sending fails and we need to remove the request from our internal hash table again (so we don't keep an invalid reference and use it when we free the request again). In 'zfcp_fsf_req_send()' we used to cache the ID as 'int' (signed and 32 bit wide), but the rest of the zfcp code (and the firmware specification) h...

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2025.05.02
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: scsi: zfcp: Fix double free of FSF request when qdio send fails We used to use the wrong type of integer in 'zfcp_fsf_req_send()' to cache the FSF request ID when sending a new FSF request. This is used in case the sending fails and we need to remove the request from our internal hash table again (so we don't keep an invalid reference and use it when we free the request again). In 'zfcp_fsf_req_send()' we used to cache the ID as 'int' (signed and 32 bit wide), but the rest of the zfcp code (and the firmware specification) h...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934 < 1bf8ed585501bb2dd0b5f67c824eab45adfbdccd, >= e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934 < d2c7d8f58e9cde8ac8d1f75e9d66c2a813ffe0ab, >= e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934 < 11edbdee4399401f533adda9bffe94567aa08b96, >= e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934 < 90a49a6b015fa439cd62e45121390284c125a91f, >= e60a6d69f1f84c2ef1cc63aefaadfe7ae9f12934 < 0954256e970ecf371b03a6c9af2cf91b9c4085ff, >= 2.6.34, >= 2.6.34 < 5.4.225, >= 5.5 < 5.10.156, >= 5.11 < 5.15.80, >= 5.16 < 6.0.10, 6.1
Fixed versions
5.4.225, 5.10.156, 5.15.80, 6.0.10

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-415