CVE-2026-43032
NFC: pn533: bound the UART receive buffer
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 1, 2026 |
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Affected Versions
Linux / Linux
c656aa4c27b17a8c70da223ed5ab42145800d6b5 < 8bedf1dd5640ac8997bff00bbefe241b438df397 c656aa4c27b17a8c70da223ed5ab42145800d6b5 < 23e925183db26cd322597679669ad29d70ed2ada c656aa4c27b17a8c70da223ed5ab42145800d6b5 < 3adca9be14bf36b927193f05f5aea35a1a90e913 c656aa4c27b17a8c70da223ed5ab42145800d6b5 < 2c1fadd221b21d8038acfe6a0f56291881d5ff76 c656aa4c27b17a8c70da223ed5ab42145800d6b5 < f48ab6ee654ecc350434e4566bc785773f412b7e c656aa4c27b17a8c70da223ed5ab42145800d6b5 < ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8 c656aa4c27b17a8c70da223ed5ab42145800d6b5 < cf2ff10183204349edfd6b972e189375fc5f1fb0 c656aa4c27b17a8c70da223ed5ab42145800d6b5 < 30fe3f5f6494f827d812ff179f295a8e532709d6
Linux / Linux
5.5
References
git.kernel.org: https://git.kernel.org/stable/c/8bedf1dd5640ac8997bff00bbefe241b438df397 git.kernel.org: https://git.kernel.org/stable/c/23e925183db26cd322597679669ad29d70ed2ada git.kernel.org: https://git.kernel.org/stable/c/3adca9be14bf36b927193f05f5aea35a1a90e913 git.kernel.org: https://git.kernel.org/stable/c/2c1fadd221b21d8038acfe6a0f56291881d5ff76 git.kernel.org: https://git.kernel.org/stable/c/f48ab6ee654ecc350434e4566bc785773f412b7e git.kernel.org: https://git.kernel.org/stable/c/ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8 git.kernel.org: https://git.kernel.org/stable/c/cf2ff10183204349edfd6b972e189375fc5f1fb0 git.kernel.org: https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6