cbcvebase.
CVE-2023-52617
published 2024-03-18

CVE-2023-52617: In the Linux kernel, the following vulnerability has been resolved: PCI: switchtec: Fix stdev_release() crash after surprise hot remove A PCI device hot…

PriorityP414medium4.4CVSS 3.1
AVLACLPRHUINSUCNINAH
EPSS
0.24%
14.8th percentile
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/[email protected]

Affected

22 ranges
VendorProductVersion rangeFixed in
debiandebian_linux
debianlinux< linux 6.1.82-1 (bookworm)linux 6.1.82-1 (bookworm)
linuxlinux
linuxlinux>= f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 < d8c293549946ee5078ed0ab77793cec365559355d8c293549946ee5078ed0ab77793cec365559355
linuxlinux>= f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 < 4a5d0528cf19dbf060313dffbe047bc11c90c24c4a5d0528cf19dbf060313dffbe047bc11c90c24c
linuxlinux>= f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 < ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8ff1c7e2fb9e9c3f53715fbe04d3ac47b80be7eb8
linuxlinux>= f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 < 1d83c85922647758c1f1e4806a4c5c3cf591a20a1d83c85922647758c1f1e4806a4c5c3cf591a20a
linuxlinux>= f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 < 0233b836312e39a3c763fb53512b3fa455b473b30233b836312e39a3c763fb53512b3fa455b473b3
linuxlinux>= f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 < e129c7fa7070fbce57feb0bfc5eaa65eef44b693e129c7fa7070fbce57feb0bfc5eaa65eef44b693
linuxlinux>= f7eb7b8a4f72b0d9dea69b09f58185ffab97fd35 < df25461119d987b8c81d232cfe4411e91dcabe66df25461119d987b8c81d232cfe4411e91dcabe66
linuxlinux_kernel< 5.4.2695.4.269
linuxlinux_kernel>= 0 < 5.10.216-15.10.216-1
linuxlinux_kernel>= 0 < 6.1.82-16.1.82-1
linuxlinux_kernel>= 0 < 6.7.7-16.7.7-1
linuxlinux_kernel>= 0 < 6.7.7-16.7.7-1
linuxlinux_kernel>= 0 < 5.4.0-181.2015.4.0-181.201
linuxlinux_kernel>= 0 < 5.15.0-106.1165.15.0-106.116
linuxlinux_kernel>= 5.11 < 5.15.1495.15.149
linuxlinux_kernel>= 5.16 < 6.1.776.1.77
linuxlinux_kernel>= 5.5 < 5.10.2105.10.210
linuxlinux_kernel>= 6.2 < 6.6.166.6.16
linuxlinux_kernel>= 6.7 < 6.7.46.7.4

CVSS provenance

nvdv3.14.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_ubuntu6.5MEDIUM
vendor_debian4.4MEDIUM
vendor_redhat4.4MEDIUM
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