Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers() The last case label can write two buffers 'mc_reg_address[j]' and 'mc_data[j]' with 'j' offset equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE since there are no checks for this value in both case labels after the last 'j++'. Instead of changing '>' to '>=' there, add the bounds check at the start of the second 'case' (the first one already has it). Also, remove redundant last checks for 'j' index bigger than array size. The expression is always false. Moreover, before or after the patch 'table->last' can be equal to SMC_NISLANDS_MC_REGISTER_ARRAY_SIZE and it seems it can be a valid value. Detected using the static analysis tool - Svace.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.11, < 4.14.291 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/136f614931a2bb73616b292cf542da3a18daefd5Patch
- https://git.kernel.org/stable/c/1f341053852be76f82610ce47a505d930512f05cPatch
- https://git.kernel.org/stable/c/782e413e38dffd37cc85b08b1ccb982adb4a93cePatch
- https://git.kernel.org/stable/c/8508d6d23a247c29792ce2fc0df3f3404d6a6a80Patch
- https://git.kernel.org/stable/c/9faff03617afeced1c4e5daa89e79b3906374342Patch
- https://git.kernel.org/stable/c/db1a9add3f90ff1c641974d5bb910c16b87af4efPatch
- https://git.kernel.org/stable/c/deb603c5928e546609c0d5798e231d0205748943Patch
- https://git.kernel.org/stable/c/ea73869df6ef386fc0feeb28ff66742ca835b18fPatch
FAQ
What is CVE-2022-50185?
CVE-2022-50185 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers() The last case label can write two buffers 'mc_reg_addre...
How severe is CVE-2022-50185?
CVE-2022-50185 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-50185?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.