CVE-2022-49455
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 75ca758adbafc81804c39b2c200ecdc819a6c042 < de65c32ace9aa70d51facc61ba986607075e3a25 | affected |
| Linux | Linux | 75ca758adbafc81804c39b2c200ecdc819a6c042 < ee89d8dee55ab4b3b8ad8b70866b2841ba334767 | affected |
| Linux | Linux | 75ca758adbafc81804c39b2c200ecdc819a6c042 < 8fb674216835e1f0c143762696d645facebb4685 | affected |
| Linux | Linux | 75ca758adbafc81804c39b2c200ecdc819a6c042 < 252768d32e92c1214aeebb5fec0844ca479bcf5c | affected |
| Linux | Linux | 75ca758adbafc81804c39b2c200ecdc819a6c042 < 9e9087cf34ee69f4e95d146ac29385d6e367a97b | affected |
| Linux | Linux | 75ca758adbafc81804c39b2c200ecdc819a6c042 < 950cf957fe34d40d63dfa3bf3968210430b6491e | affected |
| Linux | Linux | 5.2 | affected |
| Linux | Linux | 0 < 5.2 | unaffected |
| Linux | Linux | 5.4.198 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.121 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.46 <= 5.15.* | unaffected |
| Linux | Linux | 5.17.14 <= 5.17.* | unaffected |
| Linux | Linux | 5.18.3 <= 5.18.* | unaffected |
| Linux | Linux | 5.19 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://git.kernel.org/stable/c/de65c32ace9aa70d51facc61ba986607075e3a25
- https://git.kernel.org/stable/c/ee89d8dee55ab4b3b8ad8b70866b2841ba334767
- https://git.kernel.org/stable/c/8fb674216835e1f0c143762696d645facebb4685
- https://git.kernel.org/stable/c/252768d32e92c1214aeebb5fec0844ca479bcf5c
- https://git.kernel.org/stable/c/9e9087cf34ee69f4e95d146ac29385d6e367a97b
- https://git.kernel.org/stable/c/950cf957fe34d40d63dfa3bf3968210430b6491e
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