CVE-2024-46774

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.

Reserved 2024-09-11 | Published 2024-09-18 | Updated 2024-11-05 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f4 before 68d815648094
affected

1da177e4c3f4 before 0974d03eb479
affected

Default status
affected

6.10.10
unaffected

6.11
unaffected

References

git.kernel.org/...c/68d8156480940b79227d58865ec5d2947b9384a8

git.kernel.org/...c/0974d03eb479384466d828d65637814bee6b26d7

cve.org (CVE-2024-46774)

nvd.nist.gov (CVE-2024-46774)

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