{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-50005", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-06-18T10:57:27.388Z", "datePublished": "2025-06-18T11:01:10.610Z", "dateUpdated": "2025-06-18T11:01:10.610Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-06-18T11:01:10.610Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: Fix use-after-free bugs caused by pn532_cmd_timeout\n\nWhen the pn532 uart device is detaching, the pn532_uart_remove()\nis called. But there are no functions in pn532_uart_remove() that\ncould delete the cmd_timeout timer, which will cause use-after-free\nbugs. The process is shown below:\n\n (thread 1) | (thread 2)\n | pn532_uart_send_frame\npn532_uart_remove | mod_timer(&pn532->cmd_timeout,...)\n ... | (wait a time)\n kfree(pn532) //FREE | pn532_cmd_timeout\n | pn532_uart_send_frame\n | pn532->... //USE\n\nThis patch adds del_timer_sync() in pn532_uart_remove() in order to\nprevent the use-after-free bugs. What's more, the pn53x_unregister_nfc()\nis well synchronized, it sets nfc_dev->shutting_down to true and there\nare no syscalls could restart the cmd_timeout timer."}], "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": "50403ee6daddf0d7a14e9d3b51a377c39a08ec8c", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "9c34c33893db7a80d0e4b55c23d3b65e29609cfb", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "2c71f5d55a86fd5969428abf525c1ae6b1c7b0f5", "status": "affected", "versionType": "git"}, {"version": "c656aa4c27b17a8c70da223ed5ab42145800d6b5", "lessThan": "f1e941dbf80a9b8bab0bffbc4cbe41cc7f4c6fb6", "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": "5.10.140", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.64", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.6", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0", "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": "5.10.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.64"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/50403ee6daddf0d7a14e9d3b51a377c39a08ec8c"}, {"url": "https://git.kernel.org/stable/c/9c34c33893db7a80d0e4b55c23d3b65e29609cfb"}, {"url": "https://git.kernel.org/stable/c/2c71f5d55a86fd5969428abf525c1ae6b1c7b0f5"}, {"url": "https://git.kernel.org/stable/c/f1e941dbf80a9b8bab0bffbc4cbe41cc7f4c6fb6"}], "title": "nfc: pn533: Fix use-after-free bugs caused by pn532_cmd_timeout", "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: Fix use-after-free bugs caused by pn532_cmd_timeout\n\nWhen the pn532 uart device is detaching, the pn532_uart_remove()\nis called. But there are no functions in pn532_uart_remove() that\ncould delete the cmd_timeout timer, which will cause use-after-free\nbugs. The process is shown below:\n\n (thread 1) | (thread 2)\n | pn532_uart_send_frame\npn532_uart_remove | mod_timer(&pn532->cmd_timeout,...)\n ... | (wait a time)\n kfree(pn532) //FREE | pn532_cmd_timeout\n | pn532_uart_send_frame\n | pn532->... //USE\n\nThis patch adds del_timer_sync() in pn532_uart_remove() in order to\nprevent the use-after-free bugs. What's more, the pn53x_unregister_nfc()\nis well synchronized, it sets nfc_dev->shutting_down to true and there\nare no syscalls could restart the cmd_timeout timer."}], "id": "CVE-2022-50005", "lastModified": "2025-06-18T13:46:52.973", "metrics": {}, "published": "2025-06-18T11:15:28.397", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c71f5d55a86fd5969428abf525c1ae6b1c7b0f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/50403ee6daddf0d7a14e9d3b51a377c39a08ec8c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9c34c33893db7a80d0e4b55c23d3b65e29609cfb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f1e941dbf80a9b8bab0bffbc4cbe41cc7f4c6fb6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: nfc: pn533: Fix use-after-free bugs caused by pn532_cmd_timeout", "id": "2373478", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373478"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nnfc: pn533: Fix use-after-free bugs caused by pn532_cmd_timeout\nWhen the pn532 uart device is detaching, the pn532_uart_remove()\nis called. But there are no functions in pn532_uart_remove() that\ncould delete the cmd_timeout timer, which will cause use-after-free\nbugs. The process is shown below:\n(thread 1) | (thread 2)\n| pn532_uart_send_frame\npn532_uart_remove | mod_timer(&pn532->cmd_timeout,...)\n... | (wait a time)\nkfree(pn532) //FREE | pn532_cmd_timeout\n| pn532_uart_send_frame\n| pn532->... //USE\nThis patch adds del_timer_sync() in pn532_uart_remove() in order to\nprevent the use-after-free bugs. What's more, the pn53x_unregister_nfc()\nis well synchronized, it sets nfc_dev->shutting_down to true and there\nare no syscalls could restart the cmd_timeout timer."], "name": "CVE-2022-50005", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50005\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50005\nhttps://lore.kernel.org/linux-cve-announce/2025061829-CVE-2022-50005-fd4b@gregkh/T"], "threat_severity": "Moderate"}