CVE-2026-43134
8.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < 335071c0c3637064ec250481f589075db44fe4e6 | affected |
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < fa6ad76fa8623c0a50d529cd5726fa5d819a3be4 | affected |
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < 9118601ff90b79e8df3c0c98f48ae00c1b02ecef | affected |
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < 481ea39b342c347b6ac029f3d418486280be4e45 | affected |
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < ec91078e132179b04e0c3906b599816c056ceaad | affected |
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < 96581749c7c14fbec32c35728520867929600041 | affected |
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < 8dd43f9a9323f9c01bc8246da8d81a4c783c9e97 | affected |
| Linux | Linux | 27e2d4c8d28be1d1b4ecfbffab572d7dbd35254d < 138d7eca445ef37a0333425d269ee59900ca1104 | affected |
| Linux | Linux | 3.14 | affected |
| Linux | Linux | 0 < 3.14 | unaffected |
| Linux | Linux | 5.10.252 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.202 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.165 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.128 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.75 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.16 <= 6.18.* | unaffected |
| Linux | Linux | 6.19.6 <= 6.19.* | unaffected |
| Linux | Linux | 7.0 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/335071c0c3637064ec250481f589075db44fe4e6
- https://git.kernel.org/stable/c/fa6ad76fa8623c0a50d529cd5726fa5d819a3be4
- https://git.kernel.org/stable/c/9118601ff90b79e8df3c0c98f48ae00c1b02ecef
- https://git.kernel.org/stable/c/481ea39b342c347b6ac029f3d418486280be4e45
- https://git.kernel.org/stable/c/ec91078e132179b04e0c3906b599816c056ceaad
- https://git.kernel.org/stable/c/96581749c7c14fbec32c35728520867929600041
- https://git.kernel.org/stable/c/8dd43f9a9323f9c01bc8246da8d81a4c783c9e97
- https://git.kernel.org/stable/c/138d7eca445ef37a0333425d269ee59900ca1104
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