Bluetooth: hci_event: Fix using rcu_read_(un)lock while iterating (Linux Linux)

CVE-2024-56654

HIGH 7.8

En bref

Source: NVD
EPSS: EPSS 0.23 % · centile 14 (2026-10-31)
État: PUBLISHED
Publiée: 2024-12-27 15:06 UTC
Mise à jour: 2026-08-05 11:45 UTC
Attribuée par: Linux
Statut NVD: Modified

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Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: Fix using rcu_read_(un)lock while iterating The usage of rcu_read_(un)lock while inside list_for_each_entry_rcu is not safe since for the most part entries fetched this way shall be treated as rcu_dereference: Note that the value returned by rcu_dereference() is valid only within the enclosing RCU read-side critical section [1]_. For example, the following is **not** legal:: rcu_read_lock(); p = rcu_dereference(head.next); rcu_read_unlock(); x = p->address; /* BUG!!! */ rcu_read_lock(); y = p->data; /* BUG!!! */ rcu_read_unlock();

Références

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	CISA-ADP
CVSS 3.1	HIGH 7.8	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	NVD · nvd@nist.gov (Primary)
CVSS 3.1	MEDIUM 5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

ENISA EUVD · EUVD-2024-53302
GCVE · GCVE-0-2024-56654

Avis du CERT-FR

CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
CERTFR-2025-AVI-0254 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
CERTFR-2025-AVI-0151 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2025-AVI-0133 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
CERTFR-2025-AVI-0088 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.4.16 < 6.5
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.5.3 < 6.6.67
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* ≥ 6.7 < 6.12.6
cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*

Produits affectés

Produit	Versions
Linux · Linux	affected a0bfde167b506423111ddb8cd71930497a40fc54 < 0108132d7d76d884e443d18b4f067cdf2811911b ; affected a0bfde167b506423111ddb8cd71930497a40fc54 < f9ecc90b5d501b3a5a62d0685d5104f934bb0104 ; affected a0bfde167b506423111ddb8cd71930497a40fc54 < 581dd2dc168fe0ed2a7a5534a724f0d3751c93ae ; affected b475c1109251e30ec21fb574d72a1c71a4ab0039 ; affected 2ccde10127447c1a5caad8469fede945bdb62fdf ; affected 6.4.16 < 6.5
Linux · Linux	affected 6.6 ; unaffected 0 < 6.6 ; unaffected 6.6.67 ≤ 6.6.* ; unaffected 6.12.6 ≤ 6.12.* ; unaffected 6.13 ≤ *

Produit

Versions

Linux · Linux

affected a0bfde167b506423111ddb8cd71930497a40fc54 < 0108132d7d76d884e443d18b4f067cdf2811911b ; affected a0bfde167b506423111ddb8cd71930497a40fc54 < f9ecc90b5d501b3a5a62d0685d5104f934bb0104 ; affected a0bfde167b506423111ddb8cd71930497a40fc54 < 581dd2dc168fe0ed2a7a5534a724f0d3751c93ae ; affected b475c1109251e30ec21fb574d72a1c71a4ab0039 ; affected 2ccde10127447c1a5caad8469fede945bdb62fdf ; affected 6.4.16 < 6.5