cbcvebase.
CVE-2024-49876
published 2024-10-21

CVE-2024-49876: In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix UAF around queue destruction We currently do stuff like queuing the final…

PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.24%
15.7th percentile
In the Linux kernel, the following vulnerability has been resolved: drm/xe: fix UAF around queue destruction We currently do stuff like queuing the final destruction step on a random system wq, which will outlive the driver instance. With bad timing we can teardown the driver with one or more work workqueue still being alive leading to various UAF splats. Add a fini step to ensure user queues are properly torn down. At this point GuC should already be nuked so queue itself should no longer be referenced from hw pov. v2 (Matt B) - Looks much safer to use a waitqueue and then just wait for the xa_array to become empty before triggering the drain. (cherry picked from commit 861108666cc0e999cffeab6aff17b662e68774e3)

Affected

12 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.11.4-1 (forky)linux 6.11.4-1 (forky)
linuxlinux
linuxlinux>= dd08ebf6c3525a7ea2186e636df064ea47281987 < 272b0e78874586d6ccae04079d75b27b47705544272b0e78874586d6ccae04079d75b27b47705544
linuxlinux>= dd08ebf6c3525a7ea2186e636df064ea47281987 < 421c74670b0f9d5c007f1276d3647aa58f407fde421c74670b0f9d5c007f1276d3647aa58f407fde
linuxlinux>= dd08ebf6c3525a7ea2186e636df064ea47281987 < 2d2be279f1ca9e7288282d4214f16eea8a727cdb2d2be279f1ca9e7288282d4214f16eea8a727cdb
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 6.8.0-54.566.8.0-54.56
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 6.11 < 6.11.36.11.3
linuxlinux_kernel>= 6.8 < 6.10.146.10.14

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
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