CVE-2026-45834

EUVD-2026-31856
In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_change_cb()

Add the same NULL guard already present in
l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 2%
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
3.1 ≤
𝑥
< 5.10.258
linuxlinux_kernel
5.11 ≤
𝑥
< 5.15.209
linuxlinux_kernel
5.16 ≤
𝑥
< 6.1.175
linuxlinux_kernel
6.2 ≤
𝑥
< 6.6.140
linuxlinux_kernel
6.7 ≤
𝑥
< 6.12.88
linuxlinux_kernel
6.13 ≤
𝑥
< 6.18.30
linuxlinux_kernel
6.19 ≤
𝑥
< 7.0.7
linuxlinux_kernel
7.1:rc1
linuxlinux_kernel
7.1:rc2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
vulnerable
bookworm (security)
6.1.176-1
fixed
bullseye
vulnerable
bullseye (security)
5.10.259-1
fixed
forky
7.0.13-1
fixed
sid
7.1.3-1
fixed
trixie
vulnerable
trixie (security)
6.12.95-1
fixed
linux-6.1
bullseye (security)
6.1.176-1~deb11u1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
kernel
Azure Linux 3.0
0:6.6.141.1-1.azl3
fixed
Common Weakness Enumeration
References
https://git.kernel.org/stable/c/0c17c8832562b2aac288e89cefd0f46074f54bcb
https://git.kernel.org/stable/c/1810e42ff6716f320c7269d5850eca48b07b7427
https://git.kernel.org/stable/c/1b1c0da227bf63479bac9982fc8d12df9aaea0fb
https://git.kernel.org/stable/c/2ff1a41a912de8517b4482e946dd951b7d80edbf
https://git.kernel.org/stable/c/5105f3e6b2df619c635b5f6a49fac131a36c7952
https://git.kernel.org/stable/c/85426e97dc72f2088ba6d27e74cd58c3fbd43e31
https://git.kernel.org/stable/c/a2dcf1a61d056aef15b63c6eae9441344d624389
https://git.kernel.org/stable/c/c88c185ae0a1067823661b220aeea613df2c127b