In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix potential deadlock when releasing mids
All release_mid() callers seem to hold a reference of @mid so there is no need to call kref_put(&mid->refcount, __release_mid) under @server->mid_lock spinlock. If they don't, then an use-after-free bug would have occurred anyways.
By getting rid of such spinlock also fixes a potential deadlock as shown below
CPU 0 CPU 1 ------------------------------------------------------------------ cifs_demultiplex_thread() cifs_debug_data_proc_show() release_mid() spin_lock(&server->mid_lock); spin_lock(&cifs_tcp_ses_lock) spin_lock(&server->mid_lock) __release_mid() smb2_find_smb_tcon() spin_lock(&cifs_tcp_ses_lock) *deadlock*
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon Linux Ami 2 | — | Upgrade bpftool-debuginfoUpgrade kernel-develUpgrade kernel-toolsUpgrade python-perf-debuginfoUpgrade python-perfUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade kernel-headersUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-livepatch-5.10.237-230.949Upgrade perfUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.15.184-125.190Upgrade bpftoolUpgrade kernel-debuginfo-common-x86_64Upgrade kernel | May 30, 2025 | May 21, 2024 |
| Amazon_linux_2023 | — | Upgrade kernel-tools-debuginfoUpgrade kernel-debuginfoUpgrade kernel-livepatch-6.1.66-91.160Upgrade python3-perf-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-libbpf-staticUpgrade bpftoolUpgrade kernel-headersUpgrade kernel-libbpf-develUpgrade kernelUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-tools-develUpgrade kernel-modules-extraUpgrade python3-perfUpgrade perfUpgrade kernel-develUpgrade kernel-libbpfUpgrade kernel-toolsUpgrade kernel-debuginfo-common-aarch64Upgrade perf-debuginfo | Mar 27, 2025 | May 21, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade kernel-toolsUpgrade kernel-abi-stablelistsUpgrade python3-perfUpgrade kernelUpgrade bpftoolUpgrade kernel-tools-libs | Oct 8, 2024 | May 21, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade kernel-toolsUpgrade python3-perfUpgrade kernel-tools-libsUpgrade kernel-abi-stablelistsUpgrade bpftoolUpgrade kernel | Oct 9, 2024 | May 21, 2024 |
| Oracle_linux | — | Upgrade kernel-uek | Jul 17, 2025 | May 21, 2024 |
| Redhat_linux | — | Upgrade kernel-rtUpgrade kernelNo solution exists | Dec 5, 2024 | May 21, 2024 |
| Suse | — | Upgrade kernel-defaultUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-source-vanillaUpgrade kernel-rt-vdsoUpgrade kernel-kvmsmall-vdsoUpgrade reiserfs-kmp-azureUpgrade dlm-kmp-defaultUpgrade kernel-default-base-rebuildUpgrade ocfs2-kmp-defaultUpgrade kselftests-kmp-azureUpgrade kselftests-kmp-rtUpgrade dtb-allwinnerUpgrade ocfs2-kmp-64kbUpgrade kernel-default-livepatch-develUpgrade dtb-rockchipUpgrade kernel-source-rtUpgrade dtb-sprdUpgrade dtb-alteraUpgrade kernel-rtUpgrade gfs2-kmp-azureUpgrade reiserfs-kmp-rtUpgrade dtb-broadcomUpgrade kernel-azureUpgrade kernel-azure-baseUpgrade kernel-default-manUpgrade kernel-rt-extraUpgrade dtb-caviumUpgrade dtb-nvidiaUpgrade kernel-rt_debug-develUpgrade kernel-azure-vdsoUpgrade cluster-md-kmp-64kbUpgrade kernel-azure-extraUpgrade dtb-lgUpgrade kernel-kvmsmall-livepatch-develUpgrade kernel-rt_debug-vdsoUpgrade kernel-devel-azureUpgrade cluster-md-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-rt-livepatchUpgrade kernel-debug-develUpgrade kernel-64kbUpgrade dtb-mediatekUpgrade dtb-marvellUpgrade dtb-exynosUpgrade kernel-64kb-optionalUpgrade dtb-freescaleUpgrade kselftests-kmp-defaultUpgrade kernel-sourceUpgrade kernel-rt-livepatch-develUpgrade kernel-kvmsmall-develUpgrade kernel-default-vdsoUpgrade kernel-default-optionalUpgrade kernel-debugUpgrade dtb-appleUpgrade kernel-symsUpgrade kernel-macrosUpgrade kernel-devel-rtUpgrade dlm-kmp-rtUpgrade kernel-rt_debugUpgrade kernel-develUpgrade gfs2-kmp-rtUpgrade kernel-default-livepatchUpgrade kernel-zfcpdumpUpgrade kselftests-kmp-64kbUpgrade kernel-obs-qaUpgrade gfs2-kmp-64kbUpgrade dtb-socionextUpgrade dtb-armUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-azure-livepatch-develUpgrade kernel-64kb-livepatch-develUpgrade dtb-xilinxUpgrade kernel-kvmsmallUpgrade kernel-default-develUpgrade kernel-debug-livepatch-develUpgrade dlm-kmp-64kbUpgrade kernel-source-azureUpgrade kernel-64kb-develUpgrade dtb-amazonUpgrade dlm-kmp-azureUpgrade dtb-renesasUpgrade kernel-syms-rtUpgrade cluster-md-kmp-azureUpgrade ocfs2-kmp-azureUpgrade dtb-hisiliconUpgrade dtb-apmUpgrade dtb-amlogicUpgrade dtb-amdUpgrade kernel-syms-azureUpgrade kernel-default-extraUpgrade kernel-rt-develUpgrade kernel-debug-vdsoUpgrade kernel-default-baseUpgrade kernel-docs-htmlUpgrade kernel-obs-buildUpgrade kernel-azure-optionalUpgrade reiserfs-kmp-64kbUpgrade kernel-64kb-extraUpgrade kernel-azure-develUpgrade kernel-docsUpgrade kernel-rt-optionalUpgrade dtb-qcom | Jun 13, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-image-oemUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-oracle-lts-20.04Upgrade linux-image-5.4.0-1136-kvmUpgrade linux-image-5.4.0-1108-bluefieldUpgrade linux-image-ibm-lts-20.04Upgrade linux-image-azureUpgrade linux-image-5.15.0-1087-gcp-fipsUpgrade linux-image-5.15.0-1084-kvmUpgrade linux-image-generic-lpae-5.4Upgrade linux-image-gcp-fips-5.15Upgrade linux-image-ibm-5.4Upgrade linux-image-gkeop-5.15Upgrade linux-image-aws-lts-20.04Upgrade linux-image-5.15.0-1083-raspiUpgrade linux-image-nvidia-5.15Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-gcp-fips-5.4Upgrade linux-image-gcp-fips-4.15Upgrade linux-image-lowlatency-5.15Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-aws-hweUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-kvmUpgrade linux-image-generic-64kUpgrade linux-image-lowlatency-5.4Upgrade linux-image-generic-64k-5.15Upgrade linux-image-5.15.0-1085-oracleUpgrade linux-image-azure-lts-22.04Upgrade linux-image-kvm-5.15Upgrade linux-image-5.15.0-1078-azureUpgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.4.0-1067-xilinx-zynqmpUpgrade linux-image-oracle-4.15Upgrade linux-image-5.15.0-1088-aws-fipsUpgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-gcp-fipsUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-4.15.0-1191-azureUpgrade linux-image-5.4.0-1152-gcpUpgrade linux-image-aws-fips-5.15Upgrade linux-image-5.15.0-1030-nvidia-tegra-igx-rtUpgrade linux-image-nvidia-tegra-rtUpgrade linux-image-aws-fips-5.4Upgrade linux-image-5.15.0-1030-nvidia-tegra-igxUpgrade linux-image-xilinx-zynqmp-5.4Upgrade linux-image-raspiUpgrade linux-image-generic-5.15Upgrade linux-image-oracle-5.15Upgrade linux-image-generic-5.4Upgrade linux-image-5.15.0-1082-nvidiaUpgrade linux-image-raspi-5.4Upgrade linux-image-oem-20.04cUpgrade linux-image-aws-lts-18.04Upgrade linux-image-raspi-5.15Upgrade linux-image-intelUpgrade linux-image-realtime-5.15Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-aws-fipsUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-5.15.0-144-genericUpgrade linux-image-nvidia-lowlatencyUpgrade linux-image-ibm-5.15Upgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-5.15.0-1070-gkeopUpgrade linux-image-virtual-5.15Upgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-oracle-lts-22.04Upgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-gkeopUpgrade linux-image-5.4.0-1152-gcp-fipsUpgrade linux-image-4.15.0-1166-kvmUpgrade linux-image-nvidia-tegraUpgrade linux-image-5.15.0-144-generic-64kUpgrade linux-image-oracle-lts-18.04Upgrade linux-image-5.15.0-1088-awsUpgrade linux-image-gcp-4.15Upgrade linux-image-kvm-5.4Upgrade linux-image-4.15.0-240-lowlatencyUpgrade linux-image-azure-fipsUpgrade linux-image-awsUpgrade linux-image-azure-4.15Upgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-aws-5.15Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.4.0-1053-iotUpgrade linux-image-azure-5.4Upgrade linux-image-5.15.0-144-fipsUpgrade linux-image-fipsUpgrade linux-image-virtualUpgrade linux-image-aws-4.15Upgrade linux-image-azure-cvmUpgrade linux-image-aws-5.4Upgrade linux-image-5.15.0-1088-aws-64kUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-5.15.0-1087-gcpUpgrade linux-image-gcp-5.4Upgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-4.15.0-240-genericUpgrade linux-image-oem-20.04bUpgrade linux-image-raspi-nolpaeUpgrade linux-image-5.4.0-220-genericUpgrade linux-image-lowlatency-64kUpgrade linux-image-5.4.0-1149-awsUpgrade linux-image-4.15.0-1183-awsUpgrade linux-image-4.15.0-2100-azure-fipsUpgrade linux-image-gke-5.15Upgrade linux-image-virtual-5.4Upgrade linux-image-5.15.0-1082-nvidia-lowlatencyUpgrade linux-image-5.15.0-1083-intel-iotgUpgrade linux-image-5.15.0-144-lowlatencyUpgrade linux-image-5.4.0-1147-oracleUpgrade linux-image-aws-64k-5.15Upgrade linux-image-fips-5.4Upgrade linux-image-azure-lts-18.04Upgrade linux-image-4.15.0-1176-gcpUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-aws-lts-22.04Upgrade linux-image-5.4.0-1154-azureUpgrade linux-image-oracle-5.4Upgrade linux-image-gkeUpgrade linux-image-5.4.0-1148-oracleUpgrade linux-image-5.15.0-1080-ibmUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-5.4.0-220-generic-lpaeUpgrade linux-image-gcpUpgrade linux-image-5.4.0-1132-raspiUpgrade linux-image-4.15.0-2084-gcp-fipsUpgrade linux-image-5.15.0-1052-xilinx-zynqmpUpgrade linux-image-nvidia-tegra-igxUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-generic-lpaeUpgrade linux-image-intel-iotg-5.15Upgrade linux-image-nvidiaUpgrade linux-image-genericUpgrade linux-image-realtimeUpgrade linux-image-aws-fips-4.15Upgrade linux-image-5.15.0-1081-intel-iot-realtimeUpgrade linux-image-azure-fips-4.15Upgrade linux-image-oracleUpgrade linux-image-5.15.0-144-lowlatency-64kUpgrade linux-image-gcp-lts-20.04Upgrade linux-image-5.15.0-1041-nvidia-tegraUpgrade linux-image-gcp-5.15Upgrade linux-image-lowlatencyUpgrade linux-image-oem-osp1Upgrade linux-image-virtual-hwe-16.04Upgrade linux-image-5.15.0-1075-azureUpgrade linux-image-5.4.0-1123-fipsUpgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-oem-20.04dUpgrade linux-image-5.4.0-1149-aws-fipsUpgrade linux-image-4.15.0-2121-aws-fipsUpgrade linux-image-gcp-lts-18.04Upgrade linux-image-4.15.0-1145-oracleUpgrade linux-image-oem-20.04Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-4.15.0-1138-fipsUpgrade linux-image-intel-iotgUpgrade linux-image-5.4.0-1155-azure-fipsUpgrade linux-image-5.15.0-1088-realtimeUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-ibmUpgrade linux-image-azure-lts-20.04Upgrade linux-image-5.15.0-144-generic-lpaeUpgrade linux-image-5.4.0-220-lowlatencyUpgrade linux-image-azure-fips-5.4Upgrade linux-image-bluefield-5.4Upgrade linux-image-5.4.0-1095-ibmUpgrade linux-image-snapdragon-5.4Upgrade linux-image-raspi2Upgrade linux-image-generic-hwe-16.04Upgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-5.15.0-1041-nvidia-tegra-rtUpgrade linux-image-5.15.0-1085-gkeUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-bluefieldUpgrade linux-image-gcp-lts-22.04Upgrade linux-image-fips-5.15 | Nov 19, 2024 | May 21, 2024 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 14, 2025 | May 21, 2024 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub