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
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
08 Apr 2025, 15:26
Type | Values Removed | Values Added |
---|---|---|
CWE | CWE-459 | |
CPE | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
|
First Time |
Linux linux Kernel
Debian Debian debian Linux Linux |
|
References | () https://git.kernel.org/stable/c/0233b836312e39a3c763fb53512b3fa455b473b3 - Patch | |
References | () https://git.kernel.org/stable/c/1d83c85922647758c1f1e4806a4c5c3cf591a20a - Patch | |
References | () https://git.kernel.org/stable/c/4a5d0528cf19dbf060313dffbe047bc11c90c24c - Patch | |
References | () https://git.kernel.org/stable/c/d8c293549946ee5078ed0ab77793cec365559355 - Patch | |
References | () https://git.kernel.org/stable/c/df25461119d987b8c81d232cfe4411e91dcabe66 - Patch | |
References | () https://git.kernel.org/stable/c/e129c7fa7070fbce57feb0bfc5eaa65eef44b693 - Patch | |
References | () https://git.kernel.org/stable/c/ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8 - Patch | |
References | () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - Mailing List, Third Party Advisory |
Information
Published : 2024-03-18 11:15
Updated : 2025-04-08 15:26
NVD link : CVE-2023-52617
Mitre link : CVE-2023-52617
CVE.ORG link : CVE-2023-52617
JSON object : View
Products Affected
linux
- linux_kernel
debian
- debian_linux
CWE
CWE-459
Incomplete Cleanup