CVE-2022-49852
riscv: process: fix kernel info leakage
- Published
- Updated
- Reserved
- Assigned by
- Linux
Description
In the Linux kernel, the following vulnerability has been resolved: riscv: process: fix kernel info leakage thread_struct's s[12] may contain random kernel memory content, which may be finally leaked to userspace. This is a security hole. Fix it by clearing the s[12] array in thread_struct when fork. As for kthread case, it's better to clear the s[12] array as well.
Timeline
ID reserved
By Linux
Published
- 13 months later
· 13 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 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected 7db91e57a0acde126a162ababfb1e0ab190130cb – < c4601d30f7d989b4f354df899ab85b5f7a750d30
- affected 7db91e57a0acde126a162ababfb1e0ab190130cb – < c5c0b3167537793a7cf936fb240366eefd2fc7fb
- affected 7db91e57a0acde126a162ababfb1e0ab190130cb – < e56d18a976dda653194218df6d40d8122c775712
- affected 7db91e57a0acde126a162ababfb1e0ab190130cb – < cc36c7fa5d9384602529ba3eea8c5daee7be4dbc
- affected 7db91e57a0acde126a162ababfb1e0ab190130cb – < 358a68f98304b40b201ba5afe94c20355aa3dc68
- affected 7db91e57a0acde126a162ababfb1e0ab190130cb – < 6510c78490c490a6636e48b61eeaa6fb65981f4b
- affected 4.15
- unaffected < 4.15
- unaffected 4.19.267 – ≤ 4.19.*
- unaffected 5.4.225 – ≤ 5.4.*
- unaffected 5.10.155 – ≤ 5.10.*
- unaffected 5.15.79 – ≤ 5.15.*
- unaffected 6.0.9 – ≤ 6.0.*
- unaffected 6.1 – ≤ *
References (6)
- https://git.kernel.org/stable/c/c4601d30f7d989b4f354df899ab85b5f7a750d30 (opens in a new tab)
- https://git.kernel.org/stable/c/c5c0b3167537793a7cf936fb240366eefd2fc7fb (opens in a new tab)
- https://git.kernel.org/stable/c/e56d18a976dda653194218df6d40d8122c775712 (opens in a new tab)
- https://git.kernel.org/stable/c/cc36c7fa5d9384602529ba3eea8c5daee7be4dbc (opens in a new tab)
- https://git.kernel.org/stable/c/358a68f98304b40b201ba5afe94c20355aa3dc68 (opens in a new tab)
- https://git.kernel.org/stable/c/6510c78490c490a6636e48b61eeaa6fb65981f4b (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-2022-49852)Record last updated .