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CVE-2026-43062

nvd nist
Published: May 5, 2026Modified: Oct 19, 2026

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7.1
Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
Exploitability: 2.8 / Impact: 4.2
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix type confusion in l2cap_ecred_reconf_rsp() l2cap_ecred_reconf_rsp() casts the incoming data to struct l2cap_ecred_conn_rsp (the ECRED *connection* response, 8 bytes with result at offset 6) instead of struct l2cap_ecred_reconf_rsp (2 bytes with result at offset 0). This causes two problems: - The sizeof(*rsp) length check requires 8 bytes instead of the correct 2, so valid L2CAP_ECRED_RECONF_RSP packets are rejected with -EPROTO. - rsp->result reads from offset 6 instead of offset 0, returning wrong data when the packet is large enough to pass the check. Fix by using the correct type. Also pass the already byte-swapped result variable to BT_DBG instead of the raw __le16 field.

Affected (11)

Products: Linux: Linux Kernel
1 product
Linux Kernel
Configuration A
11 vulnerable
Vulnerable SoftwareAffected Versions
Linux
5.11 ≤ version < 5.15.203
5.16 ≤ version < 6.1.167
5.7 ≤ version < 5.10.253
6.13 ≤ version < 6.18.20
6.19 ≤ version < 6.19.10
6.2 ≤ version < 6.6.130
6.7 ≤ version < 6.12.78
Version 7.0 rc1
Version 7.0 rc2
Version 7.0 rc3
Version 7.0 rc4

References (8)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch

Timeline

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