CVE-2026-46332 Details
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.
A buffer overflow vulnerability has been addressed in the Linux kernel's Greybus gb-Beagleplay component. The issue arises in the cc1352_bootloader_rx() function, which improperly handles incoming data chunks from the serdev interface. The function appends each chunk to a fixed receive buffer without adequately checking if the incoming data fits within the available space. This oversight can lead to buffer overflow by allowing leftover bytes from previous callbacks to be combined with new data, exceeding the buffer's capacity. The vulnerability affects the Linux kernel stable tree.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been fixed. Instructions for downloading the patched version are available on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0339a746ff7cd3f9d10f565e89c99dc93191e58d | kernel.org | Patch |
| https://git.kernel.org/stable/c/1214bf28965ceaf584fb20d357731264dd2e10e1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/663c2728a6d0f781044431111b53a27f71027e48 | kernel.org | Patch |
| https://git.kernel.org/stable/c/fb91d4e49fcbea0b5091394ac5b8f7d4124265c3 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.12, < 6.12.86 >= 6.13, < 6.18.27 >= 6.19, < 7.0.4 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 14, 2026 | CVE Modified | kernel.org |
| Jun 9, 2026 | New CVE Received | kernel.org |