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Vulnerability · Published Mar 18, 2024 · Assigned by Linux

CVE-2023-52617PCI: switchtec: Fix stdev_release() crash after surprise hot remove

Medium 4.4

In plain English

A medium-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 15% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.4Medium
Exploit odds (30 days)0.2%top 85.2% 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: PCI: switchtec: Fix stdev_release() crash after surprise hot remove A PCI device hot removal may occur while stdev->cdev is held open. The call to stdev_release() then happens during close or exit, at a point way past switchtec_pci_remove(). Otherwise the last ref would vanish with the trailing put_device(), just before return. At that later point in time, the devm cleanup has already removed the stdev->mmio_mrpc mapping. Also, the stdev->pdev reference was not a counted one. Therefore, in DMA mode, the iowrite32() in stdev_release() will cause a fatal page fault, and the subsequent dma_free_coherent(), if reached, would pass a stale &stdev->pdev->dev pointer. Fix by moving MRPC DMA shutdown into switchtec_pci_remove(), after stdev_kill(). Counting the stdev->pdev ref is now optional, but may prevent future accidents. Reproducible via the script at https://lore.kernel.org/r/20231113212150.96410-1-dns@arista.com

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.82-1DEBIAN-CVE-2023-52617
Debian:13linux6.7.7-1DEBIAN-CVE-2023-52617
Debian:14linux6.7.7-1DEBIAN-CVE-2023-52617
Ubuntu:22.04:LTSlinux5.15.0-106.116USN-6766-1
Ubuntu:22.04:LTSlinux5.15.0-106.116UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-aws5.15.0-1061.67USN-6766-3
Ubuntu:22.04:LTSlinux-aws5.15.0-1061.67UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-azure5.15.0-1063.72UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-azure5.15.0-1063.72USN-6766-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-azure-6.56.5.0-1022.23~22.04.1UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1063.72.1UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1063.72.1USN-6766-1
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-gcp5.15.0-1059.67UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-gcp5.15.0-1059.67USN-6766-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-gcp-6.56.5.0-1022.24~22.04.1UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-gke5.15.0-1058.63UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-gke5.15.0-1058.63USN-6766-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1044.51USN-6766-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1044.51UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-hwe-6.56.5.0-41.41~22.04.2UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-ibm5.15.0-1054.57USN-6766-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1054.57UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1057.63USN-6795-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1057.63UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-kvm5.15.0-1058.63UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-kvm5.15.0-1058.63USN-6766-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-106.116USN-6766-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-106.116UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.56.5.0-41.41.1~22.04.1UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1054.55USN-6766-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1054.55UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-nvidia-6.56.5.0-1021.22UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1026.26UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1015.15UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-oem-6.56.5.0-1024.25UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-oracle5.15.0-1059.65USN-6766-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1059.65UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-oracle-6.56.5.0-1024.24~22.04.1UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-raspi5.15.0-1054.57USN-6766-2
Ubuntu:22.04:LTSlinux-raspi5.15.0-1054.57UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-riscv-6.56.5.0-40.40.1~22.04.1UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-starfive-6.56.5.0-1015.16~22.04.1UBUNTU-CVE-2023-52617
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1030.34UBUNTU-CVE-2023-52617

Affected products (as reported)

VendorProductVersions
Linux Linux f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 – before d8c293549946ee5078ed0ab77793cec365559355f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 – before 4a5d0528cf19dbf060313dffbe047bc11c90c24cf7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 – before ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 – before 1d83c85922647758c1f1e4806a4c5c3cf591a20af7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 – before 0233b836312e39a3c763fb53512b3fa455b473b3f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 – before e129c7fa7070fbce57feb0bfc5eaa65eef44b693f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 – before df25461119d987b8c81d232cfe4411e91dcabe66
Linux Linux 5.0

References