5.5

CVE-2024-56760: linux

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-56760DEBIAN-CVE-2024-56760
Published 06-01-2025Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2024-56760 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 25 · Related 24
MGASA-2025-0030MGASA-2025-0032RHSA-2025:6966SUSE-SU-2025:0289-1SUSE-SU-2025:0428-1SUSE-SU-2025:0499-1

Timeline

  1. 06-01-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: PCI/MSI: Handle lack of irqdomain gracefully Alexandre observed a warning emitted from pci_msi_setup_msi_irqs() on a RISCV platform which does not provide PCI/MSI support: WARNING: CPU: 1 PID: 1 at drivers/pci/msi/msi.h:121 pci_msi_setup_msi_irqs+0x2c/0x32 __pci_enable_msix_range+0x30c/0x596 pci_msi_setup_msi_irqs+0x2c/0x32 pci_alloc_irq_vectors_affinity+0xb8/0xe2 RISCV uses hierarchical interrupt domains and correctly does not implement the legacy fallback. The warning triggers from the legacy fallback stub. That warning is bogus as the PCI/MSI layer knows whether a PCI/MSI parent domain is associated with the device or not. There is a check for MSI-X, which has a legacy assumption. But that legacy fallback assumption is only valid when legacy support is enabled, but otherwise the check should simply return -ENOTSUPP. Loongarch tripped over the same problem and blindly enabled legacy support without implementing the legacy fallbacks. There are weak implementations which return an error, so the problem was papered over. Correct pci_msi_domain_supports() to evaluate the legacy mode and add the missing supported check into the MSI enable path to complete it.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu105 products
  • linux< 6.8.0-60.63
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1029.31
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ d2a463b297415ca6dd4d60bb1c867dd7c931587b, < b1f7476e07b93d65a1a3643dcb4a7bed80d4328d | ≥ d2a463b297415ca6dd4d60bb1c867dd7c931587b, < aed157301c659a48f5564cc4568cf0e5c8831af0 | ≥ d2a463b297415ca6dd4d60bb1c867dd7c931587b, < a60b990798eb17433d0283788280422b1bd94b18 | 6.2
  • linux_kernel≥ 6.2, < 6.6.69 | ≥ 6.7, < 6.12.8 | 6.13:rc1 | 6.13:rc2 | 6.13:rc3 | 6.13:rc4
Debian1 product
  • linux< 6.12.8-1

3 vendors · 108 products

References

24 links
Show all 24 references