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CVE-2022-49455
misc: ocxl: fix possible double free in ocxl_file_register_afu
High7.8EPSS 0.28%
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.28% · top 80% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
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The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Weakness
Affected products
- affected 75ca758adbafc81804c39b2c200ecdc819a6c042 – < de65c32ace9aa70d51facc61ba986607075e3a25
- affected 75ca758adbafc81804c39b2c200ecdc819a6c042 – < ee89d8dee55ab4b3b8ad8b70866b2841ba334767
- affected 75ca758adbafc81804c39b2c200ecdc819a6c042 – < 8fb674216835e1f0c143762696d645facebb4685
- affected 75ca758adbafc81804c39b2c200ecdc819a6c042 – < 252768d32e92c1214aeebb5fec0844ca479bcf5c
- affected 75ca758adbafc81804c39b2c200ecdc819a6c042 – < 9e9087cf34ee69f4e95d146ac29385d6e367a97b
- affected 75ca758adbafc81804c39b2c200ecdc819a6c042 – < 950cf957fe34d40d63dfa3bf3968210430b6491e
- affected 5.2
- unaffected < 5.2
- unaffected 5.4.198 – ≤ 5.4.*
- unaffected 5.10.121 – ≤ 5.10.*
- unaffected 5.15.46 – ≤ 5.15.*
- unaffected 5.17.14 – ≤ 5.17.*
- unaffected 5.18.3 – ≤ 5.18.*
- unaffected 5.19 – ≤ *
References (6)
- https://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25 (opens in a new tab)
- https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767 (opens in a new tab)
- https://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685 (opens in a new tab)
- https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5c (opens in a new tab)
- https://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97b (opens in a new tab)
- https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-49455)Record last updated .