CVE-2024-38544

RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt

CRITICAL 9.8

En bref

Source
NVD
EPSS
EPSS 0.81 % · centile 57 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt In rxe_comp_queue_pkt() an incoming response packet skb is enqueued to the resp_pkts queue and then a decision is made whether to run the completer task inline or schedule it. Finally the skb is dereferenced to bump a 'hw' performance counter. This is wrong because if the completer task is already running in a separate thread it may have already processed the skb and freed it which can cause a seg fault. This has been observed infrequently in testing at high scale. This patch fixes this by changing the order of enqueuing the packet until after the counter is accessed.

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1MEDIUM 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:HCISA-ADP
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 6.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 < c91fb72a2ca6480d8d77262eef52dc5b178463a3 ; affected 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 < de5a059e36657442b5637cc16df5163e435b9cb4 ; affected 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 < e0e14dd35d4242340c7346aac60c7ff8fbf87ffc ; affected 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 < faa8d0ecf6c9c7c2ace3ca3e552180ada6f75e19 ; affected 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 < 21b4c6d4d89030fd4657a8e7c8110fd941049794 ; affected 0b1e5b99a48b5b810e3e38f1d6e0d39306b99ec0 < bbad88f111a1829f366c189aa48e7e58e57553fc
Linux · Linuxaffected 4.12 ; unaffected 0 < 4.12 ; unaffected 5.4.285 ≤ 5.4.* ; unaffected 5.10.227 ≤ 5.10.* ; unaffected 5.15.168 ≤ 5.15.* ; unaffected 6.1.93 ≤ 6.1.*

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