CVEvulnerability

CVE-2024-26816

5.5 MEDIUM Published 2024-04-10 Modified 2026-10-15 Official page ↗
Status
Modified
Published
2024-04-10
Last modified
2026-10-15
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-770

Description

In the Linux kernel, the following vulnerability has been resolved: x86, relocs: Ignore relocations in .notes section When building with CONFIG_XEN_PV=y, .text symbols are emitted into the .notes section so that Xen can find the "startup_xen" entry point. This information is used prior to booting the kernel, so relocations are not useful. In fact, performing relocations against the .notes section means that the KASLR base is exposed since /sys/kernel/notes is world-readable. To avoid leaking the KASLR base without breaking unprivileged tools that are expecting to read /sys/kernel/notes, skip performing relocations in the .notes section. The values readable in .notes are then identical to those found in System.map.

Affected configurations

• linux linux kernel (>= 2.6.23 < 4.19.311) • linux linux kernel (>= 4.20 < 5.4.273) • linux linux kernel (>= 5.5 < 5.10.214) • linux linux kernel (>= 5.11 < 5.15.153) • linux linux kernel (>= 5.16 < 6.1.83) • linux linux kernel (>= 6.2 < 6.6.23) • linux linux kernel (>= 6.7 < 6.7.11) • linux linux kernel (>= 6.8 < 6.8.2) • linux linux kernel (>= 6.8.3 <= 6.8.12) • debian debian linux 10.0

Related

Weakness · CWE (1)

  • CWE-770 Allocation of Resources Without Limits or Throttling weakness

References