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Debian: CVE-2023-52462: linux -- security update

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Debian: CVE-2023-52462: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:C/A:N)
Published
02/23/2024
Created
06/28/2024
Added
06/27/2024
Modified
01/28/2025

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: fix check for attempt to corrupt spilled pointer When register is spilled onto a stack as a 1/2/4-byte register, we set slot_type[BPF_REG_SIZE - 1] (plus potentially few more below it, depending on actual spill size). So to check if some stack slot has spilled register we need to consult slot_type[7], not slot_type[0]. To avoid the need to remember and double-check this in the future, just use is_spilled_reg() helper.

Solution(s)

  • debian-upgrade-linux

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