{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43032", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.977Z", "datePublished": "2026-05-01T14:15:31.921Z", "dateUpdated": "2026-05-01T14:15:31.921Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-01T14:15:31.921Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: pn533: bound the UART receive buffer\n\npn532_receive_buf() appends every incoming byte to dev->recv_skb and\nonly resets the buffer after pn532_uart_rx_is_frame() recognizes a\ncomplete frame. A continuous stream of bytes without a valid PN532 frame\nheader therefore keeps growing the skb until skb_put_u8() hits the tail\nlimit.\n\nDrop the accumulated partial frame once the fixed receive buffer is full\nso malformed UART traffic cannot grow the skb past\nPN532_UART_SKB_BUFF_LEN."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nfc/pn533/uart.c"], "versions": [{"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "8bedf1dd5640ac8997bff00bbefe241b438df397", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "23e925183db26cd322597679669ad29d70ed2ada", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "3adca9be14bf36b927193f05f5aea35a1a90e913", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "2c1fadd221b21d8038acfe6a0f56291881d5ff76", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "f48ab6ee654ecc350434e4566bc785773f412b7e", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "cf2ff10183204349edfd6b972e189375fc5f1fb0", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "30fe3f5f6494f827d812ff179f295a8e532709d6", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/nfc/pn533/uart.c"], "versions": [{"version": "5.5", "status": "affected"}, {"version": "0", "lessThan": "5.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.203", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.168", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.134", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.81", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.22", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.12", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.10.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.203"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.168"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.6.134"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.12.81"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.18.22"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.19.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8bedf1dd5640ac8997bff00bbefe241b438df397"}, {"url": "https://git.kernel.org/stable/c/23e925183db26cd322597679669ad29d70ed2ada"}, {"url": "https://git.kernel.org/stable/c/3adca9be14bf36b927193f05f5aea35a1a90e913"}, {"url": "https://git.kernel.org/stable/c/2c1fadd221b21d8038acfe6a0f56291881d5ff76"}, {"url": "https://git.kernel.org/stable/c/f48ab6ee654ecc350434e4566bc785773f412b7e"}, {"url": "https://git.kernel.org/stable/c/ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8"}, {"url": "https://git.kernel.org/stable/c/cf2ff10183204349edfd6b972e189375fc5f1fb0"}, {"url": "https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6"}], "title": "NFC: pn533: bound the UART receive buffer", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: pn533: bound the UART receive buffer\n\npn532_receive_buf() appends every incoming byte to dev->recv_skb and\nonly resets the buffer after pn532_uart_rx_is_frame() recognizes a\ncomplete frame. A continuous stream of bytes without a valid PN532 frame\nheader therefore keeps growing the skb until skb_put_u8() hits the tail\nlimit.\n\nDrop the accumulated partial frame once the fixed receive buffer is full\nso malformed UART traffic cannot grow the skb past\nPN532_UART_SKB_BUFF_LEN."}], "id": "CVE-2026-43032", "lastModified": "2026-05-01T15:24:14.893", "metrics": {}, "published": "2026-05-01T15:16:47.787", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/23e925183db26cd322597679669ad29d70ed2ada"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c1fadd221b21d8038acfe6a0f56291881d5ff76"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/30fe3f5f6494f827d812ff179f295a8e532709d6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3adca9be14bf36b927193f05f5aea35a1a90e913"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8bedf1dd5640ac8997bff00bbefe241b438df397"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cf2ff10183204349edfd6b972e189375fc5f1fb0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f48ab6ee654ecc350434e4566bc785773f412b7e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: NFC: pn533: bound the UART receive buffer", "id": "2464460", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464460"}, "csaw": false, "cwe": "CWE-1284", "details": ["A flaw was found in the Linux kernel's Near Field Communication (NFC) pn533 driver. A local attacker could exploit this vulnerability by sending a continuous stream of malformed Universal Asynchronous Receiver-Transmitter (UART) traffic. This improper handling of incoming data leads to an unbounded growth of the receive buffer, which can exhaust system memory and result in a Denial of Service (DoS)."], "name": "CVE-2026-43032", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43032\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43032\nhttps://lore.kernel.org/linux-cve-announce/2026050101-CVE-2026-43032-a377@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,8bedf1dd5640ac8997bff00bbefe241b438df397)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,23e925183db26cd322597679669ad29d70ed2ada)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,3adca9be14bf36b927193f05f5aea35a1a90e913)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,2c1fadd221b21d8038acfe6a0f56291881d5ff76)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,f48ab6ee654ecc350434e4566bc785773f412b7e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,ad2f60de5045bfb5d20ea468a97c8760c6a3a4f8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,cf2ff10183204349edfd6b972e189375fc5f1fb0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c656aa4c27b17a8c70da223ed5ab42145800d6b5,30fe3f5f6494f827d812ff179f295a8e532709d6)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.253,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.203,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.168,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.134,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.81,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.22,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.12,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-01T18:45:15.323159+00:00", "updated": "2026-05-01T23:15:29.809332+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-119", "CWE-122"]}