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CVE-2026-43134

Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix missing key size check for L2CAP_LE_CONN_REQ This adds a check for encryption key size upon receiving L2CAP_LE_CONN_REQ which is required by L2CAP/LE/CFC/BV-15-C which expects L2CAP_CR_LE_BAD_KEY_SIZE.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before 335071c0c3637064ec250481f589075db44fe4e6; affected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before fa6ad76fa8623c0a50d529cd5726fa5d819a3be4; affected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before 9118601ff90b79e8df3c0c98f48ae00c1b02ecef; affected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before 481ea39b342c347b6ac029f3d418486280be4e45; affected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before ec91078e132179b04e0c3906b599816c056ceaad; affected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before 96581749c7c14fbec32c35728520867929600041; affected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before 8dd43f9a9323f9c01bc8246da8d81a4c783c9e97; affected 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d before 138d7eca445ef37a0333425d269ee59900ca1104
Linux / Linuxaffected 3.14; unaffected 0 before 3.14; unaffected 5.10.252 through 5.10.*; unaffected 5.15.202 through 5.15.*; unaffected 6.1.165 through 6.1.*; unaffected 6.6.128 through 6.6.*; unaffected 6.12.75 through 6.12.*; unaffected 6.18.16 through 6.18.*; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.