Ubuntu: (Multiple Advisories) (CVE-2024-58009): Linux kernel vulnerabilities
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: handle NULL sock pointer in l2cap_sock_alloc A NULL sock pointer is passed into l2cap_sock_alloc() when it is called from l2cap_sock_new_connection_cb() and the error handling paths should also be aware of it. Seemingly a more elegant solution would be to swap bt_sock_alloc() and l2cap_chan_create() calls since they are not interdependent to that moment but then l2cap_chan_create() adds the soon to be deallocated and still dummy-initialized channel to the global list accessible by many L2CAP paths. The channel would be removed from the list in short period of time but be a bit more straight-forward here and just check for NULL instead of changing the order of function calls. Found by Linux Verification Center (linuxtesting.org) with SVACE static analysis tool.
Solution(s)
- ubuntu-upgrade-linux-image-5-4-0-1064-xilinx-zynqmp
- ubuntu-upgrade-linux-image-5-4-0-1092-ibm
- ubuntu-upgrade-linux-image-5-4-0-1105-bluefield
- ubuntu-upgrade-linux-image-5-4-0-1120-fips
- ubuntu-upgrade-linux-image-5-4-0-1129-raspi
- ubuntu-upgrade-linux-image-5-4-0-1133-kvm
- ubuntu-upgrade-linux-image-5-4-0-1144-oracle
- ubuntu-upgrade-linux-image-5-4-0-1146-aws
- ubuntu-upgrade-linux-image-5-4-0-1146-aws-fips
- ubuntu-upgrade-linux-image-5-4-0-1149-gcp
- ubuntu-upgrade-linux-image-5-4-0-1149-gcp-fips
- ubuntu-upgrade-linux-image-5-4-0-1151-azure
- ubuntu-upgrade-linux-image-5-4-0-1151-azure-fips
- ubuntu-upgrade-linux-image-5-4-0-216-generic
- ubuntu-upgrade-linux-image-5-4-0-216-generic-lpae
- ubuntu-upgrade-linux-image-5-4-0-216-lowlatency
- ubuntu-upgrade-linux-image-aws
- ubuntu-upgrade-linux-image-aws-fips
- ubuntu-upgrade-linux-image-aws-lts-20-04
- ubuntu-upgrade-linux-image-azure
- ubuntu-upgrade-linux-image-azure-fips
- ubuntu-upgrade-linux-image-azure-lts-20-04
- ubuntu-upgrade-linux-image-bluefield
- ubuntu-upgrade-linux-image-fips
- ubuntu-upgrade-linux-image-gcp
- ubuntu-upgrade-linux-image-gcp-fips
- ubuntu-upgrade-linux-image-gcp-lts-20-04
- ubuntu-upgrade-linux-image-generic
- ubuntu-upgrade-linux-image-generic-hwe-18-04
- ubuntu-upgrade-linux-image-generic-lpae
- ubuntu-upgrade-linux-image-ibm
- ubuntu-upgrade-linux-image-ibm-lts-20-04
- ubuntu-upgrade-linux-image-kvm
- ubuntu-upgrade-linux-image-lowlatency
- ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
- ubuntu-upgrade-linux-image-oem
- ubuntu-upgrade-linux-image-oem-osp1
- ubuntu-upgrade-linux-image-oracle
- ubuntu-upgrade-linux-image-oracle-lts-20-04
- ubuntu-upgrade-linux-image-raspi
- ubuntu-upgrade-linux-image-raspi2
- ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
- ubuntu-upgrade-linux-image-virtual
- ubuntu-upgrade-linux-image-virtual-hwe-18-04
- ubuntu-upgrade-linux-image-xilinx-zynqmp
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