Bluetooth: af_bluetooth: Fix deadlock (Linux Linux)

CVE-2024-26886
MEDIUM 6.5

At a glance

Source
NVD
EPSS
EPSS 0.49 % · percentile 42 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: af_bluetooth: Fix deadlock Attemting to do sock_lock on .recvmsg may cause a deadlock as shown bellow, so instead of using sock_sock this uses sk_receive_queue.lock on bt_sock_ioctl to avoid the UAF: INFO: task kworker/u9:1:121 blocked for more than 30 seconds. Not tainted 6.7.6-lemon #183 Workqueue: hci0 hci_rx_work Call Trace: <TASK> __schedule+0x37d/0xa00 schedule+0x32/0xe0 __lock_sock+0x68/0xa0 ? __pfx_autoremove_wake_function+0x10/0x10 lock_sock_nested+0x43/0x50 l2cap_sock_recv_cb+0x21/0xa0 l2cap_recv_frame+0x55b/0x30a0 ? psi_task_switch+0xeb/0x270 ? finish_task_switch.isra.0+0x93/0x2a0 hci_rx_work+0x33a/0x3f0 process_one_work+0x13a/0x2f0 worker_thread+0x2f0/0x410 ? __pfx_worker_thread+0x10/0x10 kthread+0xe0/0x110 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x2c/0x50 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1b/0x30 </TASK>

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 6.5CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 2b16d960c79abc397f102c3d23d30005b68cb036 < 60673f442984fe689d4127a5dd4be414247b3d67 ; affected 37f71e2c9f515834841826f4eb68ec33cfb2a1ff < 0309acebc4b3884bfda332558bb8a1df052f4f39 ; affected 1d576c3a5af850bf11fbd103f9ba11aa6d6061fb < 64be3c6154886200708da0dfe259705fb992416c ; affected 2e07e8348ea454615e268222ae3fc240421be768 < 817e8138ce86001b2fa5c63d6ede756e205a01f7 ; affected 2e07e8348ea454615e268222ae3fc240421be768 < 2c9e2df022ef8b9d7fac58a04a2ef4ed25288955 ; affected 2e07e8348ea454615e268222ae3fc240421be768 < f7b94bdc1ec107c92262716b073b3e816d4784fb
Linux · Linuxaffected 6.7 ; unaffected 0 < 6.7 ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.191 ≤ 6.1.* ; unaffected 6.6.23 ≤ 6.6.* ; unaffected 6.7.11 ≤ 6.7.*

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