Vulnerability-Lookup

FKIE_CVE-2026-43032

Vulnerability from fkie_nvd - Published: 2026-05-01 15:16 - Updated: 2026-05-08 18:39

Severity

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Summary

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.

References

URL	Tags
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/23e925183db26cd322597679669ad29d70ed2ada	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2c1fadd221b21d8038acfe6a0f56291881d5ff76	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3adca9be14bf36b927193f05f5aea35a1a90e913	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/8bedf1dd5640ac8997bff00bbefe241b438df397	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/cf2ff10183204349edfd6b972e189375fc5f1fb0	Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f48ab6ee654ecc350434e4566bc785773f412b7e	Patch

Impacted products

Vendor	Product	Version
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	*
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0

JSON

To clipboard

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CVE-2026-43032 (GCVE-0-2026-43032)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-11 22:16

Title

NFC: pn533: bound the UART receive buffer

Summary

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/8bedf1dd5640ac899…
https://git.kernel.org/stable/c/23e925183db26cd32…
https://git.kernel.org/stable/c/3adca9be14bf36b92…
https://git.kernel.org/stable/c/2c1fadd221b21d803…
https://git.kernel.org/stable/c/f48ab6ee654ecc350…
https://git.kernel.org/stable/c/ad2f60de5045bfb5d…
https://git.kernel.org/stable/c/cf2ff10183204349e…
https://git.kernel.org/stable/c/30fe3f5f6494f827d…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < 8bedf1dd5640ac8997bff00bbefe241b438df397 (git) Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < 23e925183db26cd322597679669ad29d70ed2ada (git) Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < 3adca9be14bf36b927193f05f5aea35a1a90e913 (git) Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < 2c1fadd221b21d8038acfe6a0f56291881d5ff76 (git) Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < f48ab6ee654ecc350434e4566bc785773f412b7e (git) Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8 (git) Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < cf2ff10183204349edfd6b972e189375fc5f1fb0 (git) Affected: c656aa4c27b17a8c70da223ed5ab42145800d6b5 , < 30fe3f5f6494f827d812ff179f295a8e532709d6 (git)
Linux	Linux	Affected: 5.5 Unaffected: 0 , < 5.5 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.168 , ≤ 6.1.* (semver) Unaffected: 6.6.134 , ≤ 6.6.* (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/nfc/pn533/uart.c"
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        {
          "url": "https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6"
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      ],
      "title": "NFC: pn533: bound the UART receive buffer",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43032",
    "datePublished": "2026-05-01T14:15:31.921Z",
    "dateReserved": "2026-05-01T14:12:55.977Z",
    "dateUpdated": "2026-05-11T22:16:23.913Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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FKIE_CVE-2026-43032

CVE-2026-43032 (GCVE-0-2026-43032)

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