Medium severity · published May 26, 2026
CVE-2026-45836
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb()
5.5
CVSS
0.1%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndtimeo_cb()
Add the same NULL guard already present in
l2cap_sock_resume_cb() and l2cap_sock_ready_cb().
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.13 before 5.10.258; 5.11 before 5.15.209; 5.16 before 6.1.175; 6.2 before 6.6.140; 6.7 before 6.12.90; 6.13 before 6.18.30; +3 more · source: NVD
LI
Linux · Linux
8d836d71e2223b8961b21112bb4ce89ef8231682 before fd072f833147b0bc10c43a454624cb99d02f3fc7; 8d836d71e2223b8961b21112bb4ce89ef8231682 before 6e8d1a2a677a81caa60cf0aabd4217bd585fbba1; 8d836d71e2223b8961b21112bb4ce89ef8231682 before e1863e7480feddb90125d0dd5a1b572972d75908; 8d836d71e2223b8961b21112bb4ce89ef8231682 before cf1fd517f892ded88168df878f834b625133f86d; 8d836d71e2223b8961b21112bb4ce89ef8231682 before 58dc5e3d8768e121907608e6e196a908512fb083; 8d836d71e2223b8961b21112bb4ce89ef8231682 before 32bd343803d4ba47cc516f9d5f037f01b855d767; +3 more · source: vendor
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
0 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-45836
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-45836
Patch
https://git.kernel.org/stable/c/32bd343803d4ba47cc516f9d5f037f01b855d767
Patch
https://git.kernel.org/stable/c/58dc5e3d8768e121907608e6e196a908512fb083
Patch
https://git.kernel.org/stable/c/6e8d1a2a677a81caa60cf0aabd4217bd585fbba1
Patch
https://git.kernel.org/stable/c/78a88d43dab8d23aeef934ed8ce34d40e6b3d613
Patch
https://git.kernel.org/stable/c/a93d66907dd4d29b65c9797a93784bf61906d6d6
Patch
https://git.kernel.org/stable/c/cf1fd517f892ded88168df878f834b625133f86d
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