CVE-2022-50185drm/radeon: fix potential buffer overflow in ni_set_mc_special_registers()
- 7.8HighCVSS base score
- 0.29%Exploitation in 30 daysEPSS · top 78% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
Published
- 11 months later
· 11 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 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)
- 0.29% · top 78% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < ea73869df6ef386fc0feeb28ff66742ca835b18f
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < 1f341053852be76f82610ce47a505d930512f05c
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < db1a9add3f90ff1c641974d5bb910c16b87af4ef
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < 8508d6d23a247c29792ce2fc0df3f3404d6a6a80
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < deb603c5928e546609c0d5798e231d0205748943
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < 782e413e38dffd37cc85b08b1ccb982adb4a93ce
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < 9faff03617afeced1c4e5daa89e79b3906374342
- affected 69e0b57a91adca2e3eb56ed4db39ab90f3ae1043 – < 136f614931a2bb73616b292cf542da3a18daefd5
- affected 3.11
- unaffected < 3.11
- unaffected 4.14.291 – ≤ 4.14.*
- unaffected 4.19.256 – ≤ 4.19.*
- unaffected 5.4.211 – ≤ 5.4.*
- unaffected 5.10.137 – ≤ 5.10.*
- unaffected 5.15.61 – ≤ 5.15.*
- unaffected 5.18.18 – ≤ 5.18.*
- unaffected 5.19.2 – ≤ 5.19.*
- unaffected 6.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/ea73869df6ef386fc0feeb28ff66742ca835b18f (opens in a new tab)
- https://git.kernel.org/stable/c/1f341053852be76f82610ce47a505d930512f05c (opens in a new tab)
- https://git.kernel.org/stable/c/db1a9add3f90ff1c641974d5bb910c16b87af4ef (opens in a new tab)
- https://git.kernel.org/stable/c/8508d6d23a247c29792ce2fc0df3f3404d6a6a80 (opens in a new tab)
- https://git.kernel.org/stable/c/deb603c5928e546609c0d5798e231d0205748943 (opens in a new tab)
- https://git.kernel.org/stable/c/782e413e38dffd37cc85b08b1ccb982adb4a93ce (opens in a new tab)
- https://git.kernel.org/stable/c/9faff03617afeced1c4e5daa89e79b3906374342 (opens in a new tab)
- https://git.kernel.org/stable/c/136f614931a2bb73616b292cf542da3a18daefd5 (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)
- EUVD EUVD-2022-55449 (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://cveledger.app/cve/CVE-2022-50185)Record last updated .