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CVE-2026-43032 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: NFC: pn533: bound the UART receive buffer pn532_receive_buf() appends every incoming byte to dev->recv_skb and only resets the buffer after pn532_uart_rx_is_frame() recognizes a complete frame. A continuous stream of bytes without a valid PN532 frame header therefore keeps growing the skb until skb_put_u8() hits the tail limit. Drop the accumulated partial frame once the fixed receive buffer is full so malformed UART traffic cannot grow the skb past PN532_UART_SKB_BUFF_LEN.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/23e925183db26cd322597679669ad29d70ed2ada kernel.org
https://git.kernel.org/stable/c/2c1fadd221b21d8038acfe6a0f56291881d5ff76 kernel.org
https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6 kernel.org
https://git.kernel.org/stable/c/3adca9be14bf36b927193f05f5aea35a1a90e913 kernel.org
https://git.kernel.org/stable/c/8bedf1dd5640ac8997bff00bbefe241b438df397 kernel.org
https://git.kernel.org/stable/c/ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8 kernel.org
https://git.kernel.org/stable/c/cf2ff10183204349edfd6b972e189375fc5f1fb0 kernel.org
https://git.kernel.org/stable/c/f48ab6ee654ecc350434e4566bc785773f412b7e kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43032
NVD Published Date:
05/01/2026
NVD Last Modified:
05/01/2026
Source:
kernel.org