CVE-2024-38545
Publication date 19 June 2024
Last updated 31 August 2024
Ubuntu priority
Cvss 3 Severity Score
In the Linux kernel, the following vulnerability has been resolved: RDMA/hns: Fix UAF for cq async event The refcount of CQ is not protected by locks. When CQ asynchronous events and CQ destruction are concurrent, CQ may have been released, which will cause UAF. Use the xa_lock() to protect the CQ refcount.
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | 24.04 LTS noble |
Fixed 6.8.0-40.40
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
18.04 LTS bionic | Ignored | |
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty |
Not affected
|
|
linux-allwinner-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-aws | 24.04 LTS noble |
Fixed 6.8.0-1013.14
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
18.04 LTS bionic | Ignored | |
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty |
Not affected
|
|
linux-aws-5.0 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-aws-5.11 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-aws-5.13 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-aws-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-aws-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-aws-5.3 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-aws-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-aws-5.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-aws-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-aws-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-aws-fips | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
linux-aws-hwe | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
16.04 LTS xenial | Ignored | |
linux-azure | 24.04 LTS noble |
Fixed 6.8.0-1012.14
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
18.04 LTS bionic | Ignored | |
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Ignored | |
linux-azure-4.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-azure-5.11 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-azure-5.13 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-azure-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-azure-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-azure-5.3 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-azure-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-azure-5.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-azure-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-azure-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-azure-edge | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-azure-fde | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal | Ignored | |
linux-azure-fde-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-azure-fde-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-azure-fde-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-azure-fips | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
linux-bluefield | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-fips | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
linux-gcp | 24.04 LTS noble |
Fixed 6.8.0-1012.13
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
18.04 LTS bionic | Ignored | |
16.04 LTS xenial | Ignored | |
linux-gcp-4.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-gcp-5.11 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-gcp-5.13 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-gcp-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-gcp-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-gcp-5.3 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-gcp-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-gcp-5.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-gcp-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-gcp-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-gcp-fips | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
linux-gke | 24.04 LTS noble |
Fixed 6.8.0-1008.11
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal | Ignored | |
linux-gke-4.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-gke-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-gke-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-gkeop | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
linux-gkeop-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-gkeop-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-hwe | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
16.04 LTS xenial | Ignored | |
linux-hwe-5.11 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-hwe-5.13 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-hwe-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-hwe-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-hwe-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-hwe-5.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-hwe-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-hwe-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-hwe-6.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Fixed 6.8.0-40.40~22.04.3
|
|
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-hwe-edge | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
16.04 LTS xenial | Ignored | |
linux-ibm | 24.04 LTS noble |
Fixed 6.8.0-1010.10
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
linux-ibm-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-ibm-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-intel | 24.04 LTS noble |
Not affected
|
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-intel-5.13 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-intel-iot-realtime | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-intel-iotg | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal | Not in release | |
linux-intel-iotg-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-iot | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-kvm | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
18.04 LTS bionic | Ignored | |
16.04 LTS xenial |
Not affected
|
|
linux-laptop | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
linux-lowlatency | 24.04 LTS noble |
Fixed 6.8.0-40.40.1
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal | Not in release | |
linux-lowlatency-hwe-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-lowlatency-hwe-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-lowlatency-hwe-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-lowlatency-hwe-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-lowlatency-hwe-6.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Fixed 6.8.0-40.40.1~22.04.1
|
|
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-xenial | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
14.04 LTS trusty |
Not affected
|
|
linux-nvidia | 24.04 LTS noble |
Fixed 6.8.0-1011.11
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal | Not in release | |
linux-nvidia-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-nvidia-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal | Not in release | |
linux-nvidia-6.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Fixed 6.8.0-1011.11~22.04.1
|
|
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-nvidia-lowlatency | 24.04 LTS noble |
Fixed 6.8.0-1011.11.1
|
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-oem | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-oem-5.10 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-oem-5.13 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-oem-5.14 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-oem-5.17 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-oem-5.6 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-oem-6.0 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-oem-6.1 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-oem-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-oem-6.8 | 24.04 LTS noble |
Fixed 6.8.0-1010.10
|
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
linux-oracle | 24.04 LTS noble |
Fixed 6.8.0-1010.10
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
18.04 LTS bionic | Ignored | |
16.04 LTS xenial | Ignored | |
linux-oracle-5.0 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-oracle-5.11 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-oracle-5.13 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-oracle-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-oracle-5.3 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-oracle-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-oracle-5.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-oracle-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-raspi | 24.04 LTS noble |
Fixed 6.8.0-1009.10
|
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
|
linux-raspi-5.4 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Ignored | |
linux-raspi-realtime | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-raspi2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-realtime | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-riscv | 24.04 LTS noble |
Fixed 6.8.0-40.40.1
|
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Ignored | |
linux-riscv-5.11 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-riscv-5.15 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal |
Vulnerable
|
|
linux-riscv-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-riscv-5.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Ignored | |
linux-riscv-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-riscv-6.8 | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Fixed 6.8.0-40.40.1~22.04.1
|
|
20.04 LTS focal | Not in release | |
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-starfive | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Not in release | |
20.04 LTS focal | Not in release | |
linux-starfive-5.19 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-starfive-6.2 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-starfive-6.5 | 24.04 LTS noble | Not in release |
22.04 LTS jammy | Ignored | |
20.04 LTS focal | Not in release | |
linux-xilinx-zynqmp | 24.04 LTS noble | Not in release |
22.04 LTS jammy |
Vulnerable
|
|
20.04 LTS focal |
Vulnerable
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 · High |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-6949-1
- Linux kernel vulnerabilities
- 8 August 2024
- USN-6952-1
- Linux kernel vulnerabilities
- 9 August 2024
- USN-6955-1
- Linux kernel (OEM) vulnerabilities
- 12 August 2024
- USN-6949-2
- Linux kernel vulnerabilities
- 13 August 2024
Other references
- https://www.cve.org/CVERecord?id=CVE-2024-38545
- https://git.kernel.org/linus/a942ec2745ca864cd8512142100e4027dc306a42 (6.10-rc1)
- https://git.kernel.org/stable/c/763780ef0336a973e933e40e919339381732dcaf
- https://git.kernel.org/stable/c/63da190eeb5c9d849b71f457b15b308c94cbaf08
- https://git.kernel.org/stable/c/39d26cf46306bdc7ae809ecfdbfeff5aa1098911
- https://git.kernel.org/stable/c/37a7559dc1358a8d300437e99ed8ecdab0671507
- https://git.kernel.org/stable/c/a942ec2745ca864cd8512142100e4027dc306a42