Out-of-bounds Read in libperf | CVE-2023-53034

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Snyk IDSNYK-ALMALINUX10-LIBPERF-15361338
published27 Feb 2026
disclosed16 Feb 2026

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Introduced: 16 Feb 2026

CVE-2023-53034 (opens in a new tab) CWE-125 (opens in a new tab)

Amendment

The AlmaLinux security team deemed this advisory irrelevant for AlmaLinux:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libperf package and not the libperf package as distributed by AlmaLinux.

In the Linux kernel, the following vulnerability has been resolved:

ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans

There is a kernel API ntb_mw_clear_trans() would pass 0 to both addr and size. This would make xlate_pos negative.

[ 23.734156] switchtec switchtec0: MW 0: part 0 addr 0x0000000000000000 size 0x0000000000000000 [ 23.734158] ================================================================================ [ 23.734172] UBSAN: shift-out-of-bounds in drivers/ntb/hw/mscc/ntb_hw_switchtec.c:293:7 [ 23.734418] shift exponent -1 is negative

Ensuring xlate_pos is a positive or zero before BIT.

Out-of-bounds Read The advisory has been revoked - it doesn't affect any version of package libperf (opens in a new tab)