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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-46774

powerpc/rtas: Prevent Spectre v1 gadget construction in sys_rtas()

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d2834ff1d9641a8695a09ea79cd901c7b6d4d05faffected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < a262c2dc833f2fe1bd5c53a4d899e7077d3b1da9affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < b137af795399d8b657bad1646c18561530f35ed1affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 1f1feff02e9da0dd0cdb195c428c42b5f9b6c771affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 68d8156480940b79227d58865ec5d2947b9384a8affected
  • 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 0974d03eb479384466d828d65637814bee6b26d7affected

Linux Linux

Default version status: affected

  • 2.6.12affected
  • 0 to < 2.6.12unaffected
  • 5.10.237 to ≤ 5.10.*unaffected
  • 5.15.181 to ≤ 5.15.*unaffected
  • 6.1.135 to ≤ 6.1.*unaffected
  • 6.6.88 to ≤ 6.6.*unaffected
  • 6.10.10 to ≤ 6.10.*unaffected
  • 6.11 to ≤ *unaffected

References