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CVE-2023-52996

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CVE-2023-52996

Published: Mar 27, 2025

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: ipv4: prevent potential spectre v1 gadget in fib_metrics_match() if (!type) continue; if (type > RTAX_MAX) return false; ... fi_val = fi->fib_metrics->metrics[type - 1]; @type being used as an array index, we need to prevent cpu speculation or risk leaking kernel memory content.

VendorProductVersions

Linux

Linux

affected
5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8 - < 8f0eb24f1a7a60ce635f0d757a46f1a37a4d467d
affected
5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8 - < 7f9828fb1f688210e681268490576f0ca65c322a
affected
5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8 - < ca3cf947760de050d558293002ad3e7f4b8745d2
affected
5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8 - < f9753ebd61be2d957b5504cbd3fd719674f05b7a
affected
5f9ae3d9e7e4ad6db0491abc7c4ae5452dbeadd8 - < 5e9398a26a92fc402d82ce1f97cc67d832527da0

Linux

Linux

affected
4.14
unaffected
0 - < 4.14
unaffected
5.4.231 - <= 5.4.*
unaffected
5.10.166 - <= 5.10.*
unaffected
5.15.91 - <= 5.15.*

+2 more versions

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