CVE-2026-45836
Vulnerability Summary
Timeline
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 Metrics
- v4.0•MEDIUM•Score: 5.7CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS Trends
Current EPSS score: 0.12%• Percentile: 2%
Techniques & Countermeasures
- CWE-476•NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Systems
- debian•linux
< 5.10.259-1 | < 6.1.176-1 | < 6.12.90-1 | < 7.0.7-1
- debian•linux-6.1
< 6.1.176-1~deb11u1
- ubuntu•linux
all | < 5.15.0-186.196 | < 6.8.0-136.136 | all | < 7.0.0-28.28
- ubuntu•linux-allwinner-5.19
all
- ubuntu•linux-aws
all | < 5.15.0-1112.119 | < 6.8.0-1061.64 | all | < 7.0.0-1009.9
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.11
all
- ubuntu•linux-aws-5.13
all
- ubuntu•linux-aws-5.15
< 5.15.0-1112.119~20.04.1
- ubuntu•linux-aws-5.19
all
- ubuntu•linux-aws-5.3
all
- ubuntu•linux-aws-5.4
all
- ubuntu•linux-aws-5.8
all
- ubuntu•linux-aws-6.14
all
- ubuntu•linux-aws-6.17
all
- ubuntu•linux-aws-6.2
all
- ubuntu•linux-aws-6.5
all
- ubuntu•linux-aws-6.8
< 6.8.0-1061.64~22.04.1
- ubuntu•linux-aws-fips
all | < 5.15.0-1112.119+fips1 | < 6.8.0-1061.64+fips1
- ubuntu•linux-aws-hwe
all
- ubuntu•linux-azure
all | all | < 5.15.0-1117.126 | < 6.8.0-1063.71 | all | < 7.0.0-1010.10
- ubuntu•linux-azure-4.15
all
- ubuntu•linux-azure-5.11
all
- ubuntu•linux-azure-5.13
all
- ubuntu•linux-azure-5.15
< 5.15.0-1117.126~20.04.1
- ubuntu•linux-azure-5.19
all
- ubuntu•linux-azure-5.3
all
- ubuntu•linux-azure-5.4
all
- ubuntu•linux-azure-5.8
all
- ubuntu•linux-azure-6.11
all
- ubuntu•linux-azure-6.14
all
- ubuntu•linux-azure-6.17
all
- ubuntu•linux-azure-6.2
all
- ubuntu•linux-azure-6.5
all
- ubuntu•linux-azure-6.8
< 6.8.0-1063.71~22.04.1
- ubuntu•linux-azure-7.0
all
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all | < 5.15.0-1117.126 | < 6.8.0-1062.69 | all | < 7.0.0-1009.9
- ubuntu•linux-azure-fde-5.15
< 5.15.0-1117.126~20.04.2
- ubuntu•linux-azure-fde-5.19
all
- ubuntu•linux-azure-fde-6.14
all
- ubuntu•linux-azure-fde-6.2
all
- ubuntu•linux-azure-fde-6.8
< 6.8.0-1062.69~22.04.1
- ubuntu•linux-azure-fips
all | < 5.15.0-1117.126+fips1 | < 6.8.0-1063.71+fips2
- ubuntu•linux-azure-nvidia
all
- ubuntu•linux-azure-nvidia-6.14
all
- ubuntu•linux-bluefield
all | all | < 5.15.0-1096.98 | < 6.8.0-1028.33
- ubuntu•linux-fips
all | < 5.15.0-186.196+fips1 | < 6.8.0-136.136+fips2
- ubuntu•linux-gcp
all | all | < 5.15.0-1112.122 | < 6.8.0-1064.72 | all | < 7.0.0-1008.8
- ubuntu•linux-gcp-4.15
all
Showing first 50 affected entries in server-rendered view.
References (47)
- https://git.kernel.org/stable/c/cf1fd517f892ded88168df878f834b625133f86d
- https://git.kernel.org/stable/c/58dc5e3d8768e121907608e6e196a908512fb083
- https://git.kernel.org/stable/c/32bd343803d4ba47cc516f9d5f037f01b855d767
- https://git.kernel.org/stable/c/a93d66907dd4d29b65c9797a93784bf61906d6d6
- https://git.kernel.org/stable/c/78a88d43dab8d23aeef934ed8ce34d40e6b3d613
- https://git.kernel.org/stable/c/fd072f833147b0bc10c43a454624cb99d02f3fc7
- https://git.kernel.org/stable/c/6e8d1a2a677a81caa60cf0aabd4217bd585fbba1
- https://git.kernel.org/stable/c/e1863e7480feddb90125d0dd5a1b572972d75908
- https://ubuntu.com/security/CVE-2026-45836
- https://www.cve.org/CVERecord?id=CVE-2026-45836
- https://git.kernel.org/linus/78a88d43dab8d23aeef934ed8ce34d40e6b3d613
- https://ubuntu.com/security/notices/USN-8566-1
- https://ubuntu.com/security/notices/USN-8568-1
- https://ubuntu.com/security/notices/USN-8569-1
- https://ubuntu.com/security/notices/USN-8567-1
- https://ubuntu.com/security/notices/USN-8574-1
- https://ubuntu.com/security/notices/USN-8575-1
- https://ubuntu.com/security/notices/USN-8576-1
- https://ubuntu.com/security/notices/USN-8593-1
- https://ubuntu.com/security/notices/USN-8574-2
- https://ubuntu.com/security/notices/USN-8595-1
- https://ubuntu.com/security/notices/USN-8596-1
- https://ubuntu.com/security/notices/USN-8575-2
- https://ubuntu.com/security/notices/USN-8576-2
- https://ubuntu.com/security/notices/USN-8597-1
- https://ubuntu.com/security/notices/USN-8603-1
- https://ubuntu.com/security/notices/USN-8595-2
- https://ubuntu.com/security/notices/USN-8606-1
- https://ubuntu.com/security/notices/USN-8607-1
- https://ubuntu.com/security/notices/USN-8608-1
- https://ubuntu.com/security/notices/USN-8609-1
- https://ubuntu.com/security/notices/USN-8575-3
- https://ubuntu.com/security/notices/USN-8610-1
- https://ubuntu.com/security/notices/USN-8618-1
- https://ubuntu.com/security/notices/USN-8574-3
- https://ubuntu.com/security/notices/USN-8595-3
- https://ubuntu.com/security/notices/USN-8619-1
- https://ubuntu.com/security/notices/USN-8620-1
- https://ubuntu.com/security/notices/USN-8620-2
- https://ubuntu.com/security/notices/USN-8620-3
- https://ubuntu.com/security/notices/USN-8620-4
- https://security-tracker.debian.org/tracker/CVE-2026-45836
- https://ubuntu.com/security/notices/USN-8663-1
- https://ubuntu.com/security/notices/USN-8664-1
- https://ubuntu.com/security/notices/USN-8665-1
- https://ubuntu.com/security/notices/USN-8668-1
- https://ubuntu.com/security/notices/USN-8728-1