cbcvebase.
CVE-2026-31408
published 2026-04-06

CVE-2026-31408: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold…

PriorityP346high8.8CVSS 3.1
AVAACLPRNUINSUCHIHAH
EPSS
0.30%
22.3th percentile
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold sco_recv_frame() reads conn->sk under sco_conn_lock() but immediately releases the lock without holding a reference to the socket. A concurrent close() can free the socket between the lock release and the subsequent sk->sk_state access, resulting in a use-after-free. Other functions in the same file (sco_sock_timeout(), sco_conn_del()) correctly use sco_sock_hold() to safely hold a reference under the lock. Fix by using sco_sock_hold() to take a reference before releasing the lock, and adding sock_put() on all exit paths.

Affected

63 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.19.11-1 (sid)linux 6.19.11-1 (sid)
linuxlinux
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d57384e27d1ebf0047e3f00a6e1181b8be9857a2d57384e27d1ebf0047e3f00a6e1181b8be9857a2
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b0a7da0e3f7442545f071499beb36374714bb9deb0a7da0e3f7442545f071499beb36374714bb9de
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 45aaca995e4a7a05b272a58e7ab2fff4f611b8f145aaca995e4a7a05b272a58e7ab2fff4f611b8f1
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 108b81514d8f2535eb16651495cefb2250528db3108b81514d8f2535eb16651495cefb2250528db3
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7197462e90b8ce15caa1ae15d4bc2bb8cd21b11e7197462e90b8ce15caa1ae15d4bc2bb8cd21b11e
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e76e8f0581ef555eacc11dbb095e602fb30a5361e76e8f0581ef555eacc11dbb095e602fb30a5361
linuxlinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 598dbba9919c5e36c54fe1709b557d64120cb94b598dbba9919c5e36c54fe1709b557d64120cb94b
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 2.6.12.1 < 5.15.2035.15.203
linuxlinux_kernel>= 5.16 < 6.1.1686.1.168
linuxlinux_kernel>= 6.13 < 6.18.216.18.21
linuxlinux_kernel>= 6.19 < 6.19.116.19.11
linuxlinux_kernel>= 6.2 < 6.6.1316.6.131
linuxlinux_kernel>= 6.7 < 6.12.806.12.80

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vendor_msrc7.8HIGH
vendor_ubuntu7.1HIGH
vendor_redhat7.0MEDIUM
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