cbcvebase.
CVE-2025-38584
published 2025-08-19

CVE-2025-38584: In the Linux kernel, the following vulnerability has been resolved: padata: Fix pd UAF once and for all There is a race condition/UAF in padata_reorder that…

PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.16%
6.0th percentile
In the Linux kernel, the following vulnerability has been resolved: padata: Fix pd UAF once and for all There is a race condition/UAF in padata_reorder that goes back to the initial commit. A reference count is taken at the start of the process in padata_do_parallel, and released at the end in padata_serial_worker. This reference count is (and only is) required for padata_replace to function correctly. If padata_replace is never called then there is no issue. In the function padata_reorder which serves as the core of padata, as soon as padata is added to queue->serial.list, and the associated spin lock released, that padata may be processed and the reference count on pd would go away. Fix this by getting the next padata before the squeue->serial lock is released. In order to make this possible, simplify padata_reorder by only calling it once the next padata arrives.

Affected

40 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.16.3-1 (forky)linux 6.16.3-1 (forky)
linuxlinux
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < a2048e475e22b13dc3e53d485b7e6e11464ed9a6a2048e475e22b13dc3e53d485b7e6e11464ed9a6
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < 73f132e60857038416540c3599b1de6033d7575a73f132e60857038416540c3599b1de6033d7575a
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < 609e59193fc6d9dd323f1c6ae1fdd721f1c79680609e59193fc6d9dd323f1c6ae1fdd721f1c79680
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < a11a12a9880ab37342b73c93cfe1a3ada02ff0dba11a12a9880ab37342b73c93cfe1a3ada02ff0db
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < f231d5d001ec75f5886c02d496a4c79edc383d45f231d5d001ec75f5886c02d496a4c79edc383d45
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < dbe3e911a59bda6de96e7cae387ff882c2c177fadbe3e911a59bda6de96e7cae387ff882c2c177fa
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < cdf79bd2e1ecb3cc75631c73d8f4149be6019a52cdf79bd2e1ecb3cc75631c73d8f4149be6019a52
linuxlinux>= 16295bec6398a3eedc9377e1af6ff4c71b98c300 < 71203f68c7749609d7fc8ae6ad054bdedeb24f9171203f68c7749609d7fc8ae6ad054bdedeb24f91
linuxlinux_kernel>= 0 < 6.16.3-16.16.3-1
linuxlinux_kernel>= 0 < 5.15.0-170.1805.15.0-170.180
linuxlinux_kernel>= 0 < 6.8.0-100.1006.8.0-100.100
linuxlinux_kernel>= 2.6.34 < 6.15.106.15.10
linuxlinux_kernel>= 6.16 < 6.16.16.16.1
msrcazl3_kernel_6.6.104.2-4_on_azure_linux_3.0
msrcazl3_kernel_6.6.112.1-2_on_azure_linux_3.0
msrcazl3_kernel_6.6.117.1-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.119.3-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.119.3-3_on_azure_linux_3.0
msrcazl3_kernel_6.6.121.1-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.126.1-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.130.1-3_on_azure_linux_3.0
msrcazl3_kernel_6.6.96.2-1_on_azure_linux_3.0
msrcazl3_kernel_6.6.96.2-2_on_azure_linux_3.0

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
vendor_msrc7.0HIGH
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CVE-2025-38584 — Use After Free in Linux | cvebase