ftrace: Fix invalid address access in lookup_rec() when index is 0 (Linux Linux)

CVE-2023-53075
HIGH 7.8

En bref

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

Description

In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix invalid address access in lookup_rec() when index is 0 KASAN reported follow problem: BUG: KASAN: use-after-free in lookup_rec Read of size 8 at addr ffff000199270ff0 by task modprobe CPU: 2 Comm: modprobe Call trace: kasan_report __asan_load8 lookup_rec ftrace_location arch_check_ftrace_location check_kprobe_address_safe register_kprobe When checking pg->records[pg->index - 1].ip in lookup_rec(), it can get a pg which is newly added to ftrace_pages_start in ftrace_process_locs(). Before the first pg->index++, index is 0 and accessing pg->records[-1].ip will cause this problem. Don't check the ip when pg->index is 0.

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 9644302e3315e7e36495d230d5ac7125a316d33e < 2de28e5ce34b22b73b833a21e2c45ae3aade3964 ; affected 9644302e3315e7e36495d230d5ac7125a316d33e < 7569ee04b0e3b32df79f64db3a7138573edad9bc ; affected 9644302e3315e7e36495d230d5ac7125a316d33e < ac58b88ccbbb8e9fb83e137cee04a856b1ea6635 ; affected 9644302e3315e7e36495d230d5ac7125a316d33e < 83c3b2f4e7c61367c7b24551f4c6eb94bbdda283 ; affected 9644302e3315e7e36495d230d5ac7125a316d33e < 2a0d71fabfeb349216d33f001a6421b1768bd3a9 ; affected 9644302e3315e7e36495d230d5ac7125a316d33e < 4f84f31f63416b0f02fc146ffdc4ab32723eb7e8
Linux · Linuxaffected 3.5 ; unaffected 0 < 3.5 ; unaffected 4.14.311 ≤ 4.14.* ; unaffected 4.19.279 ≤ 4.19.* ; unaffected 5.4.238 ≤ 5.4.* ; unaffected 5.10.176 ≤ 5.10.*

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