CVE-2015-8615

medium

Published 2016-01-08 · Modified 2026-05-06

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CVSS v3

5.0

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.0

Description

The hvm_set_callback_via function in arch/x86/hvm/irq.c in Xen 4.6 does not limit the number of printk console messages when logging the new callback method, which allows local HVM guest OS users to cause a denial of service via a large number of changes to the callback method (HVM_PARAM_CALLBACK_IRQ).

Predictions

Exploit likelihood

60%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`4.8.0~rc3-1`
debian	bullseye	fixed	`4.8.0~rc3-1`
debian	forky	fixed	`4.8.0~rc3-1`
debian	sid	fixed	`4.8.0~rc3-1`
debian	trixie	fixed	`4.8.0~rc3-1`

References

CWEs

CWE-254

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.