CVE-2026-31512
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Bluetooth: L2CAP: Validate PDU length before reading SDU length in l2cap_ecred_data_rcv()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | cef09691cfb61f6c91cc27c3d69634f81c8ab949 | Unavailable | None listed |
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | 3340be2bafdcc806f048273ea6d8e82a6597aa1b | Unavailable | None listed |
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | e47315b84d0eb188772c3ff5cf073cdbdefca6b4 | Unavailable | None listed |
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | 477ad4976072056c348937e94f24583321938df4 | Unavailable | None listed |
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | 40c7f7eea2f4d9cb0b3e924254c8c9053372168f | Unavailable | None listed |
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | 8c96f3bd4ae0802db90630be8e9851827e9c9209 | Unavailable | None listed |
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | 5ad981249be52f5e4e92e0e97b436b569071cb86 | Unavailable | None listed |
| aac23bf636593cc2d67144aed373a46a1a5f76b1 | affected | git | c65bd945d1c08c3db756821b6bf9f1c4a77b29c6 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.14 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.14 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.131 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.80 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.21 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.11 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |