vulnerability

Ubuntu: (Multiple Advisories) (CVE-2025-40282): Linux kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Feb 12, 2026
Added
Feb 13, 2026
Modified
Apr 15, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: 6lowpan: reset link-local header on ipv6 recv path

Bluetooth 6lowpan.c netdev has header_ops, so it must set link-local
header for RX skb, otherwise things crash, eg. with AF_PACKET SOCK_RAW

Add missing skb_reset_mac_header() for uncompressed ipv6 RX path.

For the compressed one, it is done in lowpan_header_decompress().

Log: (BlueZ 6lowpan-tester Client Recv Raw - Success)
------
kernel BUG at net/core/skbuff.c:212!
Call Trace:
<IRQ>
...
packet_rcv (net/packet/af_packet.c:2152)
...
<TASK>
__local_bh_enable_ip (kernel/softirq.c:407)
netif_rx (net/core/dev.c:5648)
chan_recv_cb (net/bluetooth/6lowpan.c:294 net/bluetooth/6lowpan.c:359)
------

Solutions

ubuntu-upgrade-linux-image-5-15-0-1044-nvidia-tegra-igxubuntu-upgrade-linux-image-5-15-0-1044-nvidia-tegra-igx-rtubuntu-upgrade-linux-image-5-15-0-1055-nvidia-tegraubuntu-upgrade-linux-image-5-15-0-1055-nvidia-tegra-rtubuntu-upgrade-linux-image-5-15-0-1067-xilinx-zynqmpubuntu-upgrade-linux-image-5-15-0-1086-gkeopubuntu-upgrade-linux-image-5-15-0-1094-intel-iot-realtimeubuntu-upgrade-linux-image-5-15-0-1095-kvmubuntu-upgrade-linux-image-5-15-0-1097-ibmubuntu-upgrade-linux-image-5-15-0-1097-raspiubuntu-upgrade-linux-image-5-15-0-1098-intel-iotgubuntu-upgrade-linux-image-5-15-0-1098-nvidiaubuntu-upgrade-linux-image-5-15-0-1098-nvidia-lowlatencyubuntu-upgrade-linux-image-5-15-0-1099-gkeubuntu-upgrade-linux-image-5-15-0-1100-oracleubuntu-upgrade-linux-image-5-15-0-1102-realtimeubuntu-upgrade-linux-image-5-15-0-1103-awsubuntu-upgrade-linux-image-5-15-0-1103-aws-64kubuntu-upgrade-linux-image-5-15-0-1103-aws-fipsubuntu-upgrade-linux-image-5-15-0-1103-gcpubuntu-upgrade-linux-image-5-15-0-1103-gcp-fipsubuntu-upgrade-linux-image-5-15-0-1109-azureubuntu-upgrade-linux-image-5-15-0-1109-azure-fipsubuntu-upgrade-linux-image-5-15-0-173-fipsubuntu-upgrade-linux-image-5-15-0-173-genericubuntu-upgrade-linux-image-5-15-0-173-generic-64kubuntu-upgrade-linux-image-5-15-0-173-generic-lpaeubuntu-upgrade-linux-image-5-15-0-173-lowlatencyubuntu-upgrade-linux-image-5-15-0-173-lowlatency-64kubuntu-upgrade-linux-image-6-17-0-1006-realtimeubuntu-upgrade-linux-image-6-17-0-1007-awsubuntu-upgrade-linux-image-6-17-0-1007-aws-64kubuntu-upgrade-linux-image-6-17-0-1007-gcpubuntu-upgrade-linux-image-6-17-0-1007-gcp-64kubuntu-upgrade-linux-image-6-17-0-1007-oracleubuntu-upgrade-linux-image-6-17-0-1007-oracle-64kubuntu-upgrade-linux-image-6-17-0-1008-azureubuntu-upgrade-linux-image-6-17-0-1008-raspiubuntu-upgrade-linux-image-6-17-0-1011-oemubuntu-upgrade-linux-image-6-17-0-14-genericubuntu-upgrade-linux-image-6-17-0-14-generic-64kubuntu-upgrade-linux-image-6-8-0-1035-gkeopubuntu-upgrade-linux-image-6-8-0-1047-oracleubuntu-upgrade-linux-image-6-8-0-1047-oracle-64kubuntu-upgrade-linux-image-6-8-0-1048-gkeubuntu-upgrade-linux-image-6-8-0-1048-gke-64kubuntu-upgrade-linux-image-6-8-0-1049-ibmubuntu-upgrade-linux-image-6-8-0-1049-nvidiaubuntu-upgrade-linux-image-6-8-0-1049-nvidia-64kubuntu-upgrade-linux-image-6-8-0-1049-nvidia-lowlatencyubuntu-upgrade-linux-image-6-8-0-1049-nvidia-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-1050-awsubuntu-upgrade-linux-image-6-8-0-1050-aws-64kubuntu-upgrade-linux-image-6-8-0-1050-aws-fipsubuntu-upgrade-linux-image-6-8-0-1050-raspiubuntu-upgrade-linux-image-6-8-0-1051-azureubuntu-upgrade-linux-image-6-8-0-1052-azure-fipsubuntu-upgrade-linux-image-6-8-0-1052-gcpubuntu-upgrade-linux-image-6-8-0-1052-gcp-64kubuntu-upgrade-linux-image-6-8-0-1052-gcp-fipsubuntu-upgrade-linux-image-6-8-0-106-fipsubuntu-upgrade-linux-image-6-8-0-106-genericubuntu-upgrade-linux-image-6-8-0-106-generic-64kubuntu-upgrade-linux-image-6-8-0-106-lowlatencyubuntu-upgrade-linux-image-6-8-0-106-lowlatency-64kubuntu-upgrade-linux-image-6-8-0-2040-raspi-realtimeubuntu-upgrade-linux-image-6-8-1-1045-realtimeubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-5-15ubuntu-upgrade-linux-image-aws-6-17ubuntu-upgrade-linux-image-aws-6-8ubuntu-upgrade-linux-image-aws-64kubuntu-upgrade-linux-image-aws-64k-5-15ubuntu-upgrade-linux-image-aws-64k-6-17ubuntu-upgrade-linux-image-aws-64k-6-8ubuntu-upgrade-linux-image-aws-64k-lts-22-04ubuntu-upgrade-linux-image-aws-64k-lts-24-04ubuntu-upgrade-linux-image-aws-fipsubuntu-upgrade-linux-image-aws-fips-5-15ubuntu-upgrade-linux-image-aws-fips-6-8ubuntu-upgrade-linux-image-aws-lts-22-04ubuntu-upgrade-linux-image-aws-lts-24-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-5-15ubuntu-upgrade-linux-image-azure-6-17ubuntu-upgrade-linux-image-azure-6-8ubuntu-upgrade-linux-image-azure-fipsubuntu-upgrade-linux-image-azure-fips-5-15ubuntu-upgrade-linux-image-azure-fips-6-8ubuntu-upgrade-linux-image-azure-lts-22-04ubuntu-upgrade-linux-image-azure-lts-24-04ubuntu-upgrade-linux-image-fipsubuntu-upgrade-linux-image-fips-5-15ubuntu-upgrade-linux-image-fips-6-8ubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-5-15ubuntu-upgrade-linux-image-gcp-6-17ubuntu-upgrade-linux-image-gcp-6-8ubuntu-upgrade-linux-image-gcp-64kubuntu-upgrade-linux-image-gcp-64k-6-17ubuntu-upgrade-linux-image-gcp-64k-6-8ubuntu-upgrade-linux-image-gcp-64k-lts-24-04ubuntu-upgrade-linux-image-gcp-fipsubuntu-upgrade-linux-image-gcp-fips-5-15ubuntu-upgrade-linux-image-gcp-fips-6-8ubuntu-upgrade-linux-image-gcp-lts-22-04ubuntu-upgrade-linux-image-gcp-lts-24-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-5-15ubuntu-upgrade-linux-image-generic-6-17ubuntu-upgrade-linux-image-generic-6-8ubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-5-15ubuntu-upgrade-linux-image-generic-64k-6-17ubuntu-upgrade-linux-image-generic-64k-6-8ubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linu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References

    Title
    Rapid7 Labs

    2026 Global Threat Landscape Report

    The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.