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Vulnerability · Published May 21, 2024 · Assigned by Linux

CVE-2023-52757smb: client: fix potential deadlock when releasing mids

High 7.8

In plain English

A high-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.2%top 91.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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*

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.64-1DEBIAN-CVE-2023-52757
Debian:13linux6.6.8-1DEBIAN-CVE-2023-52757
Debian:14linux6.6.8-1DEBIAN-CVE-2023-52757
Ubuntu:22.04:LTSlinux5.15.0-144.157UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux5.15.0-144.157USN-7654-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-aws5.15.0-1088.95USN-7654-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1088.95UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-azure5.15.0-1075.84USN-7123-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1075.84UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1076.85.1UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-gcp5.15.0-1087.96UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-gcp5.15.0-1087.96USN-7654-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-gke5.15.0-1085.91UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-gke5.15.0-1085.91USN-7654-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1070.78USN-7654-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1070.78UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-ibm5.15.0-1080.83UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-ibm5.15.0-1080.83USN-7654-1
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1083.89UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1083.89USN-7654-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1084.89UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-kvm5.15.0-1084.89USN-7654-4
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-144.157UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-144.157USN-7654-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1082.83USN-7654-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1082.83UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1014.14UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1041.41USN-7654-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1041.41UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1030.30UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1030.30USN-7654-1
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-oracle5.15.0-1085.91UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-oracle5.15.0-1085.91USN-7654-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-raspi5.15.0-1083.86UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-raspi5.15.0-1083.86USN-7686-1
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1052.56UBUNTU-CVE-2023-52757
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1052.56USN-7654-5

Affected products (as reported)

VendorProductVersions
Linux Linux 7b71843fa7028475b052107664cbe120156a2cfc – before 99f476e27aad5964ab13777d84fda67d1356dec17b71843fa7028475b052107664cbe120156a2cfc – before ce49569079a9d4cad26c0f1d4653382fd9a5ca7a7b71843fa7028475b052107664cbe120156a2cfc – before 9eb44db68c5b7f5aa22b8fc7de74a3e2e08d1f297b71843fa7028475b052107664cbe120156a2cfc – before b9bb9607b1fc12fca51f5632da25b36975f599bf7b71843fa7028475b052107664cbe120156a2cfc – before c1a5962f1462b64fe7b69f20a4b6af8067bc2d267b71843fa7028475b052107664cbe120156a2cfc – before e6322fd177c6885a21dd4609dc5e5c973d1a2eb79871dea42034ee6e73bb2b97ba0284d3d462b2305.4.6 – before 5.5
Linux Linux 5.5

References