tracing: Verify event formats that have "%*p.." (Linux Linux)

CVE-2025-37938
HIGH 7.1

En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 11 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Verify event formats that have "%*p.." The trace event verifier checks the formats of trace events to make sure that they do not point at memory that is not in the trace event itself or in data that will never be freed. If an event references data that was allocated when the event triggered and that same data is freed before the event is read, then the kernel can crash by reading freed memory. The verifier runs at boot up (or module load) and scans the print formats of the events and checks their arguments to make sure that dereferenced pointers are safe. If the format uses "%*p.." the verifier will ignore it, and that could be dangerous. Cover this case as well. Also add to the sample code a use case of "%*pbl".

Faiblesses (CWE)

  • CWE-476 — Déréférencement de pointeur nul

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HLinux
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5013f454a352cce8e62162976026a9c472595e42 < 6854c87ac823181c810f8c07489ba543260c0023 ; affected 5013f454a352cce8e62162976026a9c472595e42 < 4d11fac941d83509be4e6a21038281d6d96da50c ; affected 5013f454a352cce8e62162976026a9c472595e42 < 03127354027508d076073b020d3070990fd6a958 ; affected 5013f454a352cce8e62162976026a9c472595e42 < 04b80d45ecfaf780981d6582899e3ab205e4aa08 ; affected 5013f454a352cce8e62162976026a9c472595e42 < c7204fd1758c0caf1938e8a59809a1fdf28a8114 ; affected 5013f454a352cce8e62162976026a9c472595e42 < ea8d7647f9ddf1f81e2027ed305299797299aa03
Linux · Linuxaffected 5.13 ; unaffected 0 < 5.13 ; unaffected 6.1.136 ≤ 6.1.* ; unaffected 6.6.89 ≤ 6.6.* ; unaffected 6.12.26 ≤ 6.12.* ; unaffected 6.13.11 ≤ 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