CVE-2024-46774

Advisory lineage Upstream: 0 Downstream: 36
Modified
Published: 18 Sept 2024, 07:12
Last modified:11 May 2026, 20:36

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (nvd)
EPSS Score
0.03% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

18 Sept 2024, 07:12
Published
Vulnerability first disclosed
11 May 2026, 20:36
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

EPSS Trends

Current EPSS score: 0.03%• Percentile: 8%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • linux•linux

    ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d2834ff1d9641a8695a09ea79cd901c7b6d4d05f | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b137af795399d8b657bad1646c18561530f35ed1 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1f1feff02e9da0dd0cdb195c428c42b5f9b6c771 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 68d8156480940b79227d58865ec5d2947b9384a8 | ≥ 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 0974d03eb479384466d828d65637814bee6b26d7 | 2.6.12

  • linux•linux_kernel

    < 6.10.10

References (7)