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Vulnerability record · CVE-2026-46332 · published 9 June 2026

CVE-2026-46332: Linux kernel classic buffer overflow vulnerability

Linux · Linux Kernel

In the Linux kernel, the following vulnerability has been resolved: greybus: gb-beagleplay: bound bootloader receive buffering cc1352_bootloader_rx() appends each serdev chunk into the fixed rx_buffer before parsing bootloader packets. The helper can keep leftover bytes between callbacks and may receive multiple packets in one callback, so a single count value is not constrained by one packet length. Check that the incoming chunk fits in the remaining receive buffer space before memcpy(). If it does not, drop the staged data and consume the bytes instead of overflowing rx_buffer.

8.0 CVSS 3.1 High EPSS 0.33% · top 76.9% CWE-120 · Classic buffer overflow
8.0CVSS 3.1 base score
0.33%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
23 Jul 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: greybus: gb-beagleplay: bound bootloader receive buffering cc1352_bootloader_rx() appends each serdev chunk into the fixed rx_buffer before parsing bootloader packets. The helper can keep leftover bytes between callbacks and may receive multiple packets in one callback, so a single count value is not constrained by one packet length. Check that the incoming chunk fits in the remaining receive buffer space before memcpy(). If it does not, drop the staged data and consume the bytes instead of overflowing rx_buffer.

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/0339a746ff7cd3f9d10f565e89c99dc93191e58d Patch
https://git.kernel.org/stable/c/1214bf28965ceaf584fb20d357731264dd2e10e1 Patch
https://git.kernel.org/stable/c/663c2728a6d0f781044431111b53a27f71027e48 Patch
https://git.kernel.org/stable/c/fb91d4e49fcbea0b5091394ac5b8f7d4124265c3 Patch

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Source: NIST National Vulnerability Database (record CVE-2026-46332), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.