bluetooth/l2cap: sync sock recv cb and release (Linux Linux)

CVE-2024-41062
HIGH 8.8

En bref

Source
NVD
EPSS
EPSS 0.31 % · centile 24 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: bluetooth/l2cap: sync sock recv cb and release The problem occurs between the system call to close the sock and hci_rx_work, where the former releases the sock and the latter accesses it without lock protection. CPU0 CPU1 ---- ---- sock_close hci_rx_work l2cap_sock_release hci_acldata_packet l2cap_sock_kill l2cap_recv_frame sk_free l2cap_conless_channel l2cap_sock_recv_cb If hci_rx_work processes the data that needs to be received before the sock is closed, then everything is normal; Otherwise, the work thread may access the released sock when receiving data. Add a chan mutex in the rx callback of the sock to achieve synchronization between the sock release and recv cb. Sock is dead, so set chan data to NULL, avoid others use invalid sock pointer.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 8.8CVSS:3.1/AV:A/AC:L/PR:N/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)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa < 59a3ccd749b2550392ee531b4d727022eae4c89f ; affected 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa < 9c0b7d61cf3c00f87f2529b5b8b785f0f65089aa ; affected 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa < 605572e64cd9cebb05ed609d96cff05b50d18cdf ; affected 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa < b803f30ea23e0968b6c8285c42adf0d862ab2bf6 ; affected 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa < 3b732449b78183d17178db40be3a4401cf3cd629 ; affected 5b4cedaa14bd1fe3ca1d59c684203a6ae7747faa < 89e856e124f9ae548572c56b1b70c2255705f8fe
Linux · Linuxaffected 3.4 ; unaffected 0 < 3.4 ; unaffected 5.10.271 ≤ 5.10.* ; unaffected 5.15.222 ≤ 5.15.* ; unaffected 6.1.101 ≤ 6.1.* ; unaffected 6.6.42 ≤ 6.6.*

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