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 perf-debuginfoUpgrade kernel-develUpgrade kernel-tools-develUpgrade kernel-toolsUpgrade python-perfUpgrade python-perf-debuginfoUpgrade perfUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-livepatch-5.10.237-230.949Upgrade kernel-livepatch-5.15.184-125.190Upgrade bpftoolUpgrade kernelUpgrade kernel-debuginfo-common-x86_64 | May 30, 2025 | May 21, 2024 |
| Amazon_linux_2023 | — | Upgrade kernel-libbpf-develUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-headersUpgrade kernel-debuginfoUpgrade kernelUpgrade kernel-livepatch-6.1.66-91.160Upgrade bpftool-debuginfoUpgrade kernel-libbpf-staticUpgrade kernel-tools-debuginfoUpgrade bpftoolUpgrade python3-perf-debuginfoUpgrade kernel-toolsUpgrade kernel-libbpfUpgrade python3-perfUpgrade kernel-modules-extraUpgrade perfUpgrade kernel-tools-develUpgrade perf-debuginfoUpgrade kernel-develUpgrade kernel-debuginfo-common-aarch64 | Mar 27, 2025 | May 21, 2024 |
| Debian | — | Upgrade linux | Jul 30, 2024 | May 21, 2024 |
| Huawei Euleros 2_0_sp11 | — | Upgrade bpftoolUpgrade python3-perfUpgrade kernelUpgrade kernel-tools-libsUpgrade kernel-toolsUpgrade kernel-abi-stablelists | Oct 8, 2024 | May 21, 2024 |
| Huawei Euleros 2_0_sp12 | — | Upgrade python3-perfUpgrade kernel-toolsUpgrade kernel-tools-libsUpgrade kernelUpgrade bpftoolUpgrade kernel-abi-stablelists | Oct 9, 2024 | May 21, 2024 |
| Oracle_linux | — | Upgrade kernel-uek | Jul 17, 2025 | May 21, 2024 |
| Redhat_linux | — | No solution existsUpgrade kernelUpgrade kernel-rt | Dec 5, 2024 | May 21, 2024 |
| Suse | — | Upgrade cluster-md-kmp-64kbUpgrade dlm-kmp-rtUpgrade kernel-defaultUpgrade kernel-rt_debug-livepatch-develUpgrade kernel-rtUpgrade kernel-debug-vdsoUpgrade kernel-source-rtUpgrade dtb-alteraUpgrade kernel-kvmsmall-vdsoUpgrade kernel-azureUpgrade ocfs2-kmp-64kbUpgrade kernel-default-manUpgrade kernel-azure-baseUpgrade dtb-qcomUpgrade gfs2-kmp-azureUpgrade gfs2-kmp-defaultUpgrade kernel-default-livepatch-develUpgrade kselftests-kmp-azureUpgrade kselftests-kmp-rtUpgrade kernel-64kb-extraUpgrade kernel-default-base-rebuildUpgrade kernel-rt-vdsoUpgrade kernel-source-vanillaUpgrade reiserfs-kmp-rtUpgrade reiserfs-kmp-azureUpgrade dtb-caviumUpgrade kernel-rt_debug-develUpgrade dlm-kmp-defaultUpgrade ocfs2-kmp-defaultUpgrade kernel-docsUpgrade kernel-obs-buildUpgrade kernel-azure-optionalUpgrade kernel-docs-htmlUpgrade kernel-azure-vdsoUpgrade kernel-azure-develUpgrade kernel-default-baseUpgrade reiserfs-kmp-64kbUpgrade kernel-rt-optionalUpgrade dtb-broadcomUpgrade kernel-rt-extraUpgrade dtb-sprdUpgrade dtb-allwinnerUpgrade dtb-nvidiaUpgrade dtb-rockchipUpgrade dtb-apmUpgrade kernel-source-azureUpgrade kernel-debug-livepatch-develUpgrade dtb-renesasUpgrade dtb-amdUpgrade cluster-md-kmp-azureUpgrade dtb-hisiliconUpgrade dtb-amlogicUpgrade kernel-default-extraUpgrade dtb-xilinxUpgrade gfs2-kmp-64kbUpgrade dtb-socionextUpgrade kernel-develUpgrade kernel-rt-livepatch-develUpgrade kselftests-kmp-defaultUpgrade kernel-sourceUpgrade kernel-kvmsmall-develUpgrade kernel-default-vdsoUpgrade kernel-default-livepatchUpgrade kernel-64kb-optionalUpgrade dtb-freescaleUpgrade kernel-64kb-develUpgrade dtb-amazonUpgrade dlm-kmp-azureUpgrade dlm-kmp-64kbUpgrade gfs2-kmp-rtUpgrade kernel-rt_debugUpgrade kernel-obs-qaUpgrade kernel-default-develUpgrade kernel-rt_debug-vdsoUpgrade kernel-kvmsmallUpgrade kselftests-kmp-64kbUpgrade kernel-zfcpdumpUpgrade kernel-symsUpgrade kernel-macrosUpgrade kernel-devel-rtUpgrade kernel-default-optionalUpgrade kernel-debugUpgrade dtb-appleUpgrade kernel-rt-livepatchUpgrade dtb-lgUpgrade kernel-azure-extraUpgrade kernel-debug-develUpgrade dtb-mediatekUpgrade kernel-64kbUpgrade dtb-marvellUpgrade dtb-exynosUpgrade cluster-md-kmp-rtUpgrade cluster-md-kmp-defaultUpgrade kernel-azure-livepatch-develUpgrade kernel-rt-develUpgrade kernel-syms-azureUpgrade kernel-devel-azureUpgrade reiserfs-kmp-defaultUpgrade ocfs2-kmp-rtUpgrade kernel-64kb-livepatch-develUpgrade dtb-armUpgrade kernel-kvmsmall-livepatch-develUpgrade ocfs2-kmp-azureUpgrade kernel-syms-rt | Jun 13, 2024 | May 21, 2024 |
| Ubuntu | — | Upgrade linux-image-5.15.0-1070-gkeopUpgrade linux-image-raspi-5.15Upgrade linux-image-ibm-5.15Upgrade linux-image-oem-20.04cUpgrade linux-image-snapdragon-hwe-18.04Upgrade linux-image-aws-lts-18.04Upgrade linux-image-lowlatency-hwe-16.04Upgrade linux-image-ibm-5.4Upgrade linux-image-oracle-lts-18.04Upgrade linux-image-5.15.0-1083-raspiUpgrade linux-image-5.15.0-1078-azureUpgrade linux-image-nvidia-5.15Upgrade linux-image-5.15.0-1082-nvidiaUpgrade linux-image-oracle-5.15Upgrade linux-image-oracle-4.15Upgrade linux-image-xilinx-zynqmp-5.4Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-virtual-hwe-18.04Upgrade linux-image-generic-lpae-5.15Upgrade linux-image-5.4.0-1152-gcp-fipsUpgrade linux-image-virtual-5.15Upgrade linux-image-lowlatency-5.15Upgrade linux-image-nvidia-lowlatencyUpgrade linux-image-nvidia-tegraUpgrade linux-image-5.15.0-144-generic-64kUpgrade linux-image-4.15.0-1166-kvmUpgrade linux-image-nvidia-tegra-rt-5.15Upgrade linux-image-lowlatency-5.4Upgrade linux-image-generic-5.15Upgrade linux-image-kvmUpgrade linux-image-5.15.0-1084-kvmUpgrade linux-image-raspi-5.4Upgrade linux-image-azure-lts-22.04Upgrade linux-image-5.4.0-1108-bluefieldUpgrade linux-image-4.15.0-1191-azureUpgrade linux-image-generic-lpae-hwe-20.04Upgrade linux-image-oracle-lts-20.04Upgrade linux-image-ibm-lts-20.04Upgrade linux-image-aws-fips-5.4Upgrade linux-image-realtime-5.15Upgrade linux-image-gcp-fips-5.4Upgrade linux-image-nvidia-lowlatency-5.15Upgrade linux-image-raspiUpgrade linux-image-gcp-fips-4.15Upgrade linux-image-5.4.0-1152-gcpUpgrade linux-image-aws-hweUpgrade linux-image-gcp-fipsUpgrade linux-image-lowlatency-64k-hwe-20.04Upgrade linux-image-xilinx-zynqmpUpgrade linux-image-aws-fips-5.15Upgrade linux-image-5.15.0-1030-nvidia-tegra-igxUpgrade linux-image-raspi-hwe-18.04Upgrade linux-image-azureUpgrade linux-image-5.15.0-1088-aws-fipsUpgrade linux-image-oemUpgrade linux-image-generic-64kUpgrade linux-image-5.15.0-1085-oracleUpgrade linux-image-5.15.0-1030-nvidia-tegra-igx-rtUpgrade linux-image-aws-lts-20.04Upgrade linux-image-aws-fipsUpgrade linux-image-generic-5.4Upgrade linux-image-kvm-5.15Upgrade linux-image-gkeop-5.15Upgrade linux-image-generic-64k-5.15Upgrade linux-image-intelUpgrade linux-image-gcp-fips-5.15Upgrade linux-image-virtual-hwe-20.04Upgrade linux-image-5.4.0-1067-xilinx-zynqmpUpgrade linux-image-5.4.0-1136-kvmUpgrade linux-image-5.15.0-144-genericUpgrade linux-image-5.15.0-1087-gcp-fipsUpgrade linux-image-oracle-lts-22.04Upgrade linux-image-gkeopUpgrade linux-image-generic-lpae-5.4Upgrade linux-image-generic-hwe-20.04Upgrade linux-image-4.15.0-2100-azure-fipsUpgrade linux-image-generic-hwe-18.04Upgrade linux-image-5.15.0-1085-gkeUpgrade linux-image-5.4.0-1123-fipsUpgrade linux-image-5.15.0-144-lowlatencyUpgrade linux-image-gcp-5.4Upgrade linux-image-intel-iotg-5.15Upgrade linux-image-5.4.0-1132-raspiUpgrade linux-image-raspi-nolpaeUpgrade linux-image-aws-64k-5.15Upgrade linux-image-5.15.0-1083-intel-iotgUpgrade linux-image-4.15.0-2084-gcp-fipsUpgrade linux-image-5.15.0-1052-xilinx-zynqmpUpgrade linux-image-lowlatency-hwe-20.04Upgrade linux-image-5.4.0-1148-oracleUpgrade linux-image-5.15.0-1081-intel-iot-realtimeUpgrade linux-image-5.15.0-1041-nvidia-tegraUpgrade linux-image-lowlatency-64kUpgrade linux-image-4.15.0-240-genericUpgrade linux-image-4.15.0-1183-awsUpgrade linux-image-intel-iot-realtime-5.15Upgrade linux-image-lowlatencyUpgrade linux-image-azure-fipsUpgrade linux-image-bluefieldUpgrade linux-image-4.15.0-240-lowlatencyUpgrade linux-image-aws-4.15Upgrade linux-image-generic-64k-hwe-20.04Upgrade linux-image-5.4.0-1149-aws-fipsUpgrade linux-image-5.4.0-220-genericUpgrade linux-image-5.4.0-1147-oracleUpgrade linux-image-oem-20.04bUpgrade linux-image-bluefield-5.4Upgrade linux-image-nvidia-tegra-5.15Upgrade linux-image-kvm-5.4Upgrade linux-image-oracle-5.4Upgrade linux-image-virtualUpgrade linux-image-5.4.0-220-lowlatencyUpgrade linux-image-ibmUpgrade linux-image-azure-cvmUpgrade linux-image-virtual-hwe-16.04Upgrade linux-image-4.15.0-2121-aws-fipsUpgrade linux-image-azure-lts-20.04Upgrade linux-image-5.15.0-144-generic-lpaeUpgrade linux-image-4.15.0-1145-oracleUpgrade linux-image-azure-fips-5.4Upgrade linux-image-5.15.0-1087-gcpUpgrade linux-image-snapdragon-5.4Upgrade linux-image-oem-20.04dUpgrade linux-image-4.15.0-1138-fipsUpgrade linux-image-raspi2Upgrade linux-image-5.15.0-1088-realtimeUpgrade linux-image-nvidia-tegra-igx-5.15Upgrade linux-image-fipsUpgrade linux-image-lowlatency-64k-5.15Upgrade linux-image-5.4.0-1095-ibmUpgrade linux-image-oem-20.04Upgrade linux-image-nvidia-tegra-igxUpgrade linux-image-5.15.0-1080-ibmUpgrade linux-image-4.15.0-1176-gcpUpgrade linux-image-lowlatency-hwe-18.04Upgrade linux-image-gkeUpgrade linux-image-aws-fips-4.15Upgrade linux-image-gcp-lts-20.04Upgrade linux-image-realtimeUpgrade linux-image-gcp-5.15Upgrade linux-image-oracleUpgrade linux-image-generic-hwe-16.04Upgrade linux-image-azure-fips-4.15Upgrade linux-image-5.4.0-1053-iotUpgrade linux-image-5.15.0-1075-azureUpgrade linux-image-gcp-lts-18.04Upgrade linux-image-5.15.0-1041-nvidia-tegra-rtUpgrade linux-image-fips-5.4Upgrade linux-image-5.4.0-1149-awsUpgrade linux-image-gke-5.15Upgrade linux-image-azure-5.4Upgrade linux-image-nvidiaUpgrade linux-image-aws-5.4Upgrade linux-image-azure-lts-18.04Upgrade linux-image-5.15.0-1082-nvidia-lowlatencyUpgrade linux-image-aws-64k-lts-22.04Upgrade linux-image-azure-4.15Upgrade linux-image-oem-osp1Upgrade linux-image-nvidia-tegra-igx-rtUpgrade linux-image-gcp-4.15Upgrade linux-image-aws-lts-22.04Upgrade linux-image-5.4.0-1154-azureUpgrade linux-image-fips-5.15Upgrade linux-image-5.15.0-1088-aws-64kUpgrade linux-image-intel-iotgUpgrade linux-image-genericUpgrade linux-image-xilinx-zynqmp-5.15Upgrade linux-image-5.4.0-1155-azure-fipsUpgrade linux-image-virtual-5.4Upgrade linux-image-intel-iot-realtimeUpgrade linux-image-5.15.0-144-fipsUpgrade linux-image-aws-5.15Upgrade linux-image-awsUpgrade linux-image-5.15.0-1088-awsUpgrade linux-image-5.15.0-144-lowlatency-64kUpgrade linux-image-nvidia-tegra-igx-rt-5.15Upgrade linux-image-gcp-lts-22.04Upgrade linux-image-gcpUpgrade linux-image-generic-lpaeUpgrade linux-image-5.4.0-220-generic-lpae | 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 |
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