cbcvebase.
CVE-2024-53075
published 2024-11-19

CVE-2024-53075: In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent a bad reference count on CPU nodes When populating cache leaves we…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.21%
11.8th percentile
In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent a bad reference count on CPU nodes When populating cache leaves we previously fetched the CPU device node at the very beginning. But when ACPI is enabled we go through a specific branch which returns early and does not call 'of_node_put' for the node that was acquired. Since we are not using a CPU device node for the ACPI code anyways, we can simply move the initialization of it just passed the ACPI block, and we are guaranteed to have an 'of_node_put' call for the acquired node. This prevents a bad reference count of the CPU device node. Moreover, the previous function did not check for errors when acquiring the device node, so a return -ENOENT has been added for that case.

Affected

10 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.11.7-1 (forky)linux 6.11.7-1 (forky)
linuxlinux
linuxlinux>= 604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955 < 303846a3dc275e35fbb556d72f1e356ba669e4f8303846a3dc275e35fbb556d72f1e356ba669e4f8
linuxlinux>= 604f32ea6909b0ebb8ab0bf1ab7dc66ee3dc8955 < 37233169a6ea912020c572f870075a63293b786a37233169a6ea912020c572f870075a63293b786a
linuxlinux>= ebccacb0b599fa788a16eff35a7de14621f56804 < 80aec5a855106c668b5978c48e789f010198b83280aec5a855106c668b5978c48e789f010198b832
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.11.7-16.11.7-1
linuxlinux_kernel>= 0 < 6.11.7-16.11.7-1
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 6.11 < 6.11.76.11.7

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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