CVE-2024-46774powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()
- 7.1HighCVSS base score
- 0.27%Exploitation in 30 daysEPSS · top 81% 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: powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas() Smatch warns: arch/powerpc/kernel/rtas.c:1932 __do_sys_rtas() warn: potential spectre issue 'args.args' [r] (local cap) The 'nargs' and 'nret' locals come directly from a user-supplied buffer and are used as indexes into a small stack-based array and as inputs to copy_to_user() after they are subject to bounds checks. Use array_index_nospec() after the bounds checks to clamp these values for speculative execution.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 20 months later
· 20 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 · Modified | 3.1 | High7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.27% · top 81% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < d2834ff1d9641a8695a09ea79cd901c7b6d4d05f
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < b137af795399d8b657bad1646c18561530f35ed1
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 1f1feff02e9da0dd0cdb195c428c42b5f9b6c771
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 68d8156480940b79227d58865ec5d2947b9384a8
- affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 – < 0974d03eb479384466d828d65637814bee6b26d7
- affected 2.6.12
- unaffected < 2.6.12
- unaffected 5.10.237 – ≤ 5.10.*
- unaffected 5.15.181 – ≤ 5.15.*
- unaffected 6.1.135 – ≤ 6.1.*
- unaffected 6.6.88 – ≤ 6.6.*
- unaffected 6.10.10 – ≤ 6.10.*
- unaffected 6.11 – ≤ *
References
References7
- https://git.kernel.org/stable/c/d2834ff1d9641a8695a09ea79cd901c7b6d4d05f (opens in a new tab)
- https://git.kernel.org/stable/c/a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9 (opens in a new tab)
- https://git.kernel.org/stable/c/b137af795399d8b657bad1646c18561530f35ed1 (opens in a new tab)
- https://git.kernel.org/stable/c/1f1feff02e9da0dd0cdb195c428c42b5f9b6c771 (opens in a new tab)
- https://git.kernel.org/stable/c/68d8156480940b79227d58865ec5d2947b9384a8 (opens in a new tab)
- https://git.kernel.org/stable/c/0974d03eb479384466d828d65637814bee6b26d7 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html (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-2024-42035 (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-2024-46774)Record last updated .