CVE-2022-49455 (GCVE-0-2022-49455)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2026-05-11 19:00
VLAI
Title
misc: ocxl: fix possible double free in ocxl_file_register_afu
Summary
In the Linux kernel, the following vulnerability has been resolved: misc: ocxl: fix possible double free in ocxl_file_register_afu info_release() will be called in device_unregister() when info->dev's reference count is 0. So there is no need to call ocxl_afu_put() and kfree() again. Fix this by adding free_minor() and return to err_unregister error path.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:40 UTC
CWE
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6971 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 75ca758adbafc81804c39b2c200ecdc819a6c042 , < de65c32ace9aa70d51facc61ba986607075e3a25 (git)
Affected: 75ca758adbafc81804c39b2c200ecdc819a6c042 , < ee89d8dee55ab4b3b8ad8b70866b2841ba334767 (git)
Affected: 75ca758adbafc81804c39b2c200ecdc819a6c042 , < 8fb674216835e1f0c143762696d645facebb4685 (git)
Affected: 75ca758adbafc81804c39b2c200ecdc819a6c042 , < 252768d32e92c1214aeebb5fec0844ca479bcf5c (git)
Affected: 75ca758adbafc81804c39b2c200ecdc819a6c042 , < 9e9087cf34ee69f4e95d146ac29385d6e367a97b (git)
Affected: 75ca758adbafc81804c39b2c200ecdc819a6c042 , < 950cf957fe34d40d63dfa3bf3968210430b6491e (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.2
Unaffected: 0 , < 5.2 (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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}



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