BaseFortify

Publication date: 2025-10-01

Last updated on: 2025-10-02

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: drm/radeon: free iio for atombios when driver shutdown Fix below kmemleak when unload radeon driver: unreferenced object 0xffff9f8608ede200 (size 512): comm "systemd-udevd", pid 326, jiffies 4294682822 (age 716.338s) hex dump (first 32 bytes): 00 00 00 00 c4 aa ec aa 14 ab 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000062fadebe>] kmem_cache_alloc_trace+0x2f1/0x500 [<00000000b6883cea>] atom_parse+0x117/0x230 [radeon] [<00000000158c23fd>] radeon_atombios_init+0xab/0x170 [radeon] [<00000000683f672e>] si_init+0x57/0x750 [radeon] [<00000000566cc31f>] radeon_device_init+0x559/0x9c0 [radeon] [<0000000046efabb3>] radeon_driver_load_kms+0xc1/0x1a0 [radeon] [<00000000b5155064>] drm_dev_register+0xdd/0x1d0 [<0000000045fec835>] radeon_pci_probe+0xbd/0x100 [radeon] [<00000000e69ecca3>] pci_device_probe+0xe1/0x160 [<0000000019484b76>] really_probe.part.0+0xc1/0x2c0 [<000000003f2649da>] __driver_probe_device+0x96/0x130 [<00000000231c5bb1>] driver_probe_device+0x24/0xf0 [<0000000000a42377>] __driver_attach+0x77/0x190 [<00000000d7574da6>] bus_for_each_dev+0x7f/0xd0 [<00000000633166d2>] driver_attach+0x1e/0x30 [<00000000313b05b8>] bus_add_driver+0x12c/0x1e0 iio was allocated in atom_index_iio() called by atom_parse(), but it doesn't got released when the dirver is shutdown. Fix this kmemleak by free it in radeon_atombios_fini().

CVSS Scores

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Meta Information

Published

2025-10-01

Last Modified

2025-10-02

Generated

2026-07-06

AI Q&A

2025-10-01

EPSS Evaluated

2026-07-05

NVD

CVE-2023-53453

Affected Vendors & Products

Vendor	Product	Version / Range
radeon	radeon	*
linux	linux_kernel	From 5.15.160 (inc) to 5.16 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability is a memory leak in the Linux kernel's Radeon driver. Specifically, an internal object (iio) allocated during the driver's operation is not properly freed when the driver shuts down, causing a kernel memory leak (kmemleak). The fix involves releasing this allocated memory during driver shutdown to prevent the leak.

Impact Analysis

This vulnerability can cause a memory leak in the Linux kernel when the Radeon driver is unloaded, potentially leading to increased memory usage and reduced system stability or performance over time.

Mitigation Strategies

The vulnerability is fixed by freeing the iio object in the radeon_atombios_fini() function when the Radeon driver is shut down. To mitigate this vulnerability, you should update your Linux kernel to a version that includes this fix, ensuring the Radeon driver properly releases allocated resources during shutdown.

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