CVE-2023-53788
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/ca0132: fixup buffer overrun at tuning_ctl_set() tuning_ctl_set() might have buffer overrun at (X) if it didn't break from loop by matching (A). static int tuning_ctl_set(...) { for (i = 0; i < TUNING_CTLS_COUNT; i++) (A) if (nid == ca0132_tuning_ctls[i].nid) break; snd_hda_power_up(...); (X) dspio_set_param(..., ca0132_tuning_ctls[i].mid, ...); snd_hda_power_down(...); ^ return 1; } We will get below error by cppcheck sound/pci/hda/patch_ca0132.c:4229:2: note: After for loop, i has value 12 for (i = 0; i < TUNING_CTLS_COUNT; i++) ^ sound/pci/hda/patch_ca0132.c:4234:43: note: Array index out of bounds dspio_set_param(codec, ca0132_tuning_ctls[i].mid, 0x20, ^ This patch cares non match case.
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Meta Information
Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-06-16
AI Q&A
2025-12-09
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53788
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is a buffer overrun issue in the Linux kernel's ALSA sound subsystem, specifically in the hda/ca0132 driver. The function tuning_ctl_set() may access an array out of bounds if a loop does not break when a matching condition is met, leading to an invalid array index being used. This happens because if no match is found in the loop, the index variable exceeds the array bounds, causing a buffer overrun when accessing ca0132_tuning_ctls[i].mid. The patch fixes this by handling the case when no match occurs to prevent the buffer overrun.

Impact Analysis

This vulnerability can lead to a buffer overrun in the ALSA sound driver, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or escalate privileges by exploiting the out-of-bounds memory access.

Mitigation Strategies

Apply the patch that fixes the buffer overrun in the ALSA hda/ca0132 driver, specifically the fix in tuning_ctl_set() function to prevent out-of-bounds array access. Updating the Linux kernel to a version that includes this patch is the recommended mitigation.

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