CVE-2026-31512

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-31512
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Validate PDU length before reading SDU length in l2cap_ecred_data_rcv() l2cap_ecred_data_rcv() reads the SDU length field from skb->data using get_unaligned_le16() without first verifying that skb contains at least L2CAP_SDULEN_SIZE (2) bytes. When skb->len is less than 2, this reads past the valid data in the skb. The ERTM reassembly path correctly calls pskb_may_pull() before reading the SDU length (l2cap_reassemble_sdu, L2CAP_SAR_START case). Apply the same validation to the Enhanced Credit Based Flow Control data path.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/3340be2bafdcc806f048273ea6d8e82a6597aa1b Patch
https://git.kernel.org/stable/c/40c7f7eea2f4d9cb0b3e924254c8c9053372168f Patch
https://git.kernel.org/stable/c/477ad4976072056c348937e94f24583321938df4 Patch
https://git.kernel.org/stable/c/5ad981249be52f5e4e92e0e97b436b569071cb86 Patch
https://git.kernel.org/stable/c/8c96f3bd4ae0802db90630be8e9851827e9c9209 Patch
https://git.kernel.org/stable/c/c65bd945d1c08c3db756821b6bf9f1c4a77b29c6 Patch
https://git.kernel.org/stable/c/cef09691cfb61f6c91cc27c3d69634f81c8ab949 Patch
https://git.kernel.org/stable/c/e47315b84d0eb188772c3ff5cf073cdbdefca6b4 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
History

28 Apr 2026, 15:08

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/3340be2bafdcc806f048273ea6d8e82a6597aa1b - () https://git.kernel.org/stable/c/3340be2bafdcc806f048273ea6d8e82a6597aa1b - Patch
References () https://git.kernel.org/stable/c/40c7f7eea2f4d9cb0b3e924254c8c9053372168f - () https://git.kernel.org/stable/c/40c7f7eea2f4d9cb0b3e924254c8c9053372168f - Patch
References () https://git.kernel.org/stable/c/477ad4976072056c348937e94f24583321938df4 - () https://git.kernel.org/stable/c/477ad4976072056c348937e94f24583321938df4 - Patch
References () https://git.kernel.org/stable/c/5ad981249be52f5e4e92e0e97b436b569071cb86 - () https://git.kernel.org/stable/c/5ad981249be52f5e4e92e0e97b436b569071cb86 - Patch
References () https://git.kernel.org/stable/c/8c96f3bd4ae0802db90630be8e9851827e9c9209 - () https://git.kernel.org/stable/c/8c96f3bd4ae0802db90630be8e9851827e9c9209 - Patch
References () https://git.kernel.org/stable/c/c65bd945d1c08c3db756821b6bf9f1c4a77b29c6 - () https://git.kernel.org/stable/c/c65bd945d1c08c3db756821b6bf9f1c4a77b29c6 - Patch
References () https://git.kernel.org/stable/c/cef09691cfb61f6c91cc27c3d69634f81c8ab949 - () https://git.kernel.org/stable/c/cef09691cfb61f6c91cc27c3d69634f81c8ab949 - Patch
References () https://git.kernel.org/stable/c/e47315b84d0eb188772c3ff5cf073cdbdefca6b4 - () https://git.kernel.org/stable/c/e47315b84d0eb188772c3ff5cf073cdbdefca6b4 - Patch
First Time Linux
Linux linux Kernel
CPE cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:3.14:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE NVD-CWE-noinfo

22 Apr 2026, 14:16

Type Values Removed Values Added
New CVE
Information

Published : 2026-04-22 14:16

Updated : 2026-04-28 15:08

NVD link : CVE-2026-31512

Mitre link : CVE-2026-31512

CVE.ORG link : CVE-2026-31512

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo