← CVE Intelligence

CVE-2026-63991

Bluetooth: 6lowpan: check skb_clone() return value in send_mcast_pkt() PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: 6lowpan: check skb_clone() return value in send_mcast_pkt() The skb_clone() function can return NULL if memory allocation fails. send_mcast_pkt() calls skb_clone() without checking the return value, which can lead to a NULL pointer dereference in send_pkt() when it dereferences skb->data. Add a NULL check after skb_clone() and skip the peer if the clone fails.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 18722c247023035b9e2e2a08a887adec2a9a6e49 before 9afcb5ea080af13aab37930da627db43bd277665; affected 18722c247023035b9e2e2a08a887adec2a9a6e49 before 9903a04becf059e44cccf625e23689b7d4378384; affected 18722c247023035b9e2e2a08a887adec2a9a6e49 before d630c4b25f36e0e68461561e4c70957ec37fdedd; affected 18722c247023035b9e2e2a08a887adec2a9a6e49 before b06203ac5f12929d79146bb9f063c2af1d679e63; affected 18722c247023035b9e2e2a08a887adec2a9a6e49 before 3d5d81d294ba09487c86bc4ba33dc4a4bec5d215; affected 18722c247023035b9e2e2a08a887adec2a9a6e49 before e673889a35a5e4c586d0fae67d8755ca4367d3e2; affected 18722c247023035b9e2e2a08a887adec2a9a6e49 before 2061d080a013c0ec0a56162cd501fb36d2befc26; affected 18722c247023035b9e2e2a08a887adec2a9a6e49 before 3c40d381ce04f9575a5d8b542898183c3b4b38dc
Linux / Linuxaffected 3.14; unaffected 0 before 3.14; unaffected 5.10.259 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.176 through 6.1.*; unaffected 6.6.143 through 6.6.*; unaffected 6.12.93 through 6.12.*; unaffected 6.18.35 through 6.18.*; unaffected 7.0.12 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References