ASoC: SOF: ipc4-topology: Harden loops for looking up ALH copiers (Linux Linux)

CVE-2025-21870
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.26 % · percentile 18 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-topology: Harden loops for looking up ALH copiers Other, non DAI copier widgets could have the same stream name (sname) as the ALH copier and in that case the copier->data is NULL, no alh_data is attached, which could lead to NULL pointer dereference. We could check for this NULL pointer in sof_ipc4_prepare_copier_module() and avoid the crash, but a similar loop in sof_ipc4_widget_setup_comp_dai() will miscalculate the ALH device count, causing broken audio. The correct fix is to harden the matching logic by making sure that the 1. widget is a DAI widget - so dai = w->private is valid 2. the dai (and thus the copier) is ALH copier

Weaknesses (CWE)

  • CWE-476 — NULL Pointer Dereference

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected a150345aa758492e05d2934f318ce7c2566b1cfe < ec8f5a4fe296c311d4b45db7a25a0e9e69802372 ; affected a150345aa758492e05d2934f318ce7c2566b1cfe < 6b6b47c1aa717a0ed3400e00a81dfea686a41d7f ; affected a150345aa758492e05d2934f318ce7c2566b1cfe < 87c8768a96092ce75cd47fe076db5080db7ac515 ; affected a150345aa758492e05d2934f318ce7c2566b1cfe < 93c6c2e5801aab09ef1ef99f248f3cd323c3f152 ; affected a150345aa758492e05d2934f318ce7c2566b1cfe < 6fd60136d256b3b948333ebdb3835f41a95ab7ef
Linux · Linuxaffected 6.0 ; unaffected 0 < 6.0 ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.160 ≤ 6.6.* ; unaffected 6.12.17 ≤ 6.12.* ; unaffected 6.13.5 ≤ 6.13.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD