{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-71079", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:30:19.648Z", "datePublished": "2026-01-13T15:34:44.136Z", "dateUpdated": "2026-07-14T12:44:29.944Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-23T16:03:06.740Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: nfc: fix deadlock between nfc_unregister_device and rfkill_fop_write\n\nA deadlock can occur between nfc_unregister_device() and rfkill_fop_write()\ndue to lock ordering inversion between device_lock and rfkill_global_mutex.\n\nThe problematic lock order is:\n\nThread A (rfkill_fop_write):\n rfkill_fop_write()\n mutex_lock(&rfkill_global_mutex)\n rfkill_set_block()\n nfc_rfkill_set_block()\n nfc_dev_down()\n device_lock(&dev->dev) <- waits for device_lock\n\nThread B (nfc_unregister_device):\n nfc_unregister_device()\n device_lock(&dev->dev)\n rfkill_unregister()\n mutex_lock(&rfkill_global_mutex) <- waits for rfkill_global_mutex\n\nThis creates a classic ABBA deadlock scenario.\n\nFix this by moving rfkill_unregister() and rfkill_destroy() outside the\ndevice_lock critical section. Store the rfkill pointer in a local variable\nbefore releasing the lock, then call rfkill_unregister() after releasing\ndevice_lock.\n\nThis change is safe because rfkill_fop_write() holds rfkill_global_mutex\nwhile calling the rfkill callbacks, and rfkill_unregister() also acquires\nrfkill_global_mutex before cleanup. Therefore, rfkill_unregister() will\nwait for any ongoing callback to complete before proceeding, and\ndevice_del() is only called after rfkill_unregister() returns, preventing\nany use-after-free.\n\nThe similar lock ordering in nfc_register_device() (device_lock ->\nrfkill_global_mutex via rfkill_register) is safe because during\nregistration the device is not yet in rfkill_list, so no concurrent\nrfkill operations can occur on this device." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/nfc/core.c" ], "versions": [ { "version": "73a0d12114b4bc1a9def79a623264754b9df698e", "lessThan": "2e0831e9fc46a06daa6d4d8d57a2738e343130c3", "status": "affected", "versionType": "git" }, { "version": "8a9c61c3ef187d8891225f9b932390670a43a0d3", "lessThan": "e02a1c33f10a0ed3aba855ab8ae2b6c4c5be8012", "status": "affected", "versionType": "git" }, { "version": "3e3b5dfcd16a3e254aab61bd1e8c417dd4503102", "lessThan": "ee41f4f3ccf8cd6ba3732e867abbec7e6d8d12e5", "status": "affected", "versionType": "git" }, { "version": "3e3b5dfcd16a3e254aab61bd1e8c417dd4503102", "lessThan": "6b93c8ab6f6cda8818983a4ae3fcf84b023037b4", "status": "affected", "versionType": "git" }, { "version": "3e3b5dfcd16a3e254aab61bd1e8c417dd4503102", "lessThan": "8fc4632fb508432895430cd02b38086bdd649083", "status": "affected", "versionType": "git" }, { "version": "3e3b5dfcd16a3e254aab61bd1e8c417dd4503102", "lessThan": "f3a8a7c1aa278f2378b2f3a10500c6674dffdfda", "status": "affected", "versionType": "git" }, { "version": "3e3b5dfcd16a3e254aab61bd1e8c417dd4503102", "lessThan": "1ab526d97a57e44d26fadcc0e9adeb9c0c0182f5", "status": "affected", "versionType": "git" }, { "version": "5ef16d2d172ee56714cff37cd005b98aba08ef5a", "status": "affected", "versionType": "git" }, { "version": "ff169909eac9e00bf1aa0af739ba6ddfb1b1d135", "status": "affected", "versionType": "git" }, { "version": "47244ac0b65bd74cc70007d8e1bac68bd2baad19", "status": "affected", "versionType": "git" }, { "version": "c45cea83e13699bdfd47842e04d09dd43af4c371", "status": "affected", "versionType": "git" }, { "version": "307d2e6cebfca9d92f86c8e2c8e3dd4a8be46ba6", "status": "affected", "versionType": "git" }, { "version": "5.10.82", "lessThan": "5.10.248", "status": "affected", "versionType": "semver" }, { "version": "5.15.5", "lessThan": "5.15.198", "status": "affected", "versionType": "semver" }, { "version": "4.4.293", "lessThan": "4.5", "status": "affected", "versionType": "semver" }, { "version": "4.9.291", "lessThan": "4.10", "status": "affected", "versionType": "semver" }, { "version": "4.14.256", "lessThan": "4.15", "status": "affected", "versionType": "semver" }, { "version": "4.19.218", "lessThan": "4.20", "status": "affected", "versionType": "semver" }, { "version": "5.4.162", "lessThan": "5.5", "status": "affected", "versionType": "semver" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/nfc/core.c" ], "versions": [ { "version": "5.16", "status": "affected" }, { "version": "0", "lessThan": "5.16", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.248", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.198", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.160", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.64", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.4", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "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": "5.10.82", "versionEndExcluding": "5.10.248" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.5", "versionEndExcluding": "5.15.198" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.1.160" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.12.64" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.18.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.16", "versionEndExcluding": "6.19" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.293" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.9.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.14.256" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.19.218" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.4.162" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/2e0831e9fc46a06daa6d4d8d57a2738e343130c3" }, { "url": "https://git.kernel.org/stable/c/e02a1c33f10a0ed3aba855ab8ae2b6c4c5be8012" }, { "url": "https://git.kernel.org/stable/c/ee41f4f3ccf8cd6ba3732e867abbec7e6d8d12e5" }, { "url": "https://git.kernel.org/stable/c/6b93c8ab6f6cda8818983a4ae3fcf84b023037b4" }, { "url": "https://git.kernel.org/stable/c/8fc4632fb508432895430cd02b38086bdd649083" }, { "url": "https://git.kernel.org/stable/c/f3a8a7c1aa278f2378b2f3a10500c6674dffdfda" }, { "url": "https://git.kernel.org/stable/c/1ab526d97a57e44d26fadcc0e9adeb9c0c0182f5" } ], "title": "net: nfc: fix deadlock between nfc_unregister_device and rfkill_fop_write", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-07-14T12:44:29.944Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html" } ] } ] } }