CVE-2023-54321

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But device_bind_driver() is not called yet, so it\ncauses null-ptr-deref while access the 'knode_driver'. To fix this, set\ndev->driver to null in the error path before calling bus_remove_device()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/base/core.c"], "versions": [{"version": "57eee3d23e8833ca18708b374c648235691942ba", "lessThan": "97aa8fb74bbe9aaf4ed5962a784f73b071bd16bf", "status": "affected", "versionType": "git"}, {"version": "57eee3d23e8833ca18708b374c648235691942ba", "lessThan": "2c59650d078b1b3f1ea50d5f8ee9fcc537dc02d3", "status": "affected", "versionType": "git"}, {"version": "57eee3d23e8833ca18708b374c648235691942ba", "lessThan": "7cf515bf9e8c2908dc170ecf2df117162a16c9c5", "status": "affected", "versionType": "git"}, {"version": "57eee3d23e8833ca18708b374c648235691942ba", "lessThan": "17982304806c5c10924e73f7ca5556e0d7378452", "status": "affected", "versionType": "git"}, {"version": "57eee3d23e8833ca18708b374c648235691942ba", "lessThan": "f6837f34a34973ef6600c08195ed300e24e97317", "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/base/core.c"], "versions": [{"version": "2.6.26", "status": "affected"}, {"version": "0", "lessThan": "2.6.26", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.249", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.99", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.16", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.3", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3", "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": "2.6.26", "versionEndExcluding": "5.10.249"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "5.15.99"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.1.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.2.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.26", "versionEndExcluding": "6.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/97aa8fb74bbe9aaf4ed5962a784f73b071bd16bf"}, {"url": "https://git.kernel.org/stable/c/2c59650d078b1b3f1ea50d5f8ee9fcc537dc02d3"}, {"url": "https://git.kernel.org/stable/c/7cf515bf9e8c2908dc170ecf2df117162a16c9c5"}, {"url": "https://git.kernel.org/stable/c/17982304806c5c10924e73f7ca5556e0d7378452"}, {"url": "https://git.kernel.org/stable/c/f6837f34a34973ef6600c08195ed300e24e97317"}], "title": "driver core: fix potential null-ptr-deref in device_add()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2023-54321", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-05T20:27:22.600288Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-05T20:31:21.368Z"}}]}}

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But device_bind_driver() is not called yet, so it\ncauses null-ptr-deref while access the 'knode_driver'. To fix this, set\ndev->driver to null in the error path before calling bus_remove_device()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.249", "versionStartIncluding": "2.6.26"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.99", "versionStartIncluding": "2.6.26"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.16", "versionStartIncluding": "2.6.26"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.2.3", "versionStartIncluding": "2.6.26"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.3", "versionStartIncluding": "2.6.26"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:59:42.500Z"}}}, "cveMetadata": {"cveId": "CVE-2023-54321", "state": "PUBLISHED", "dateUpdated": "2026-11-05T20:31:21.368Z", "dateReserved": "2025-12-30T12:28:53.860Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-12-30T12:34:14.793Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/base/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "97aa8fb74bbe9aaf4ed5962a784f73b071bd16bf", "status": "affected", "version": "57eee3d23e8833ca18708b374c648235691942ba", "versionType": "git"}, {"lessThan": "2c59650d078b1b3f1ea50d5f8ee9fcc537dc02d3", "status": "affected", "version": "57eee3d23e8833ca18708b374c648235691942ba", "versionType": "git"}, {"lessThan": "7cf515bf9e8c2908dc170ecf2df117162a16c9c5", "status": "affected", "version": "57eee3d23e8833ca18708b374c648235691942ba", "versionType": "git"}, {"lessThan": "17982304806c5c10924e73f7ca5556e0d7378452", "status": "affected", "version": "57eee3d23e8833ca18708b374c648235691942ba", "versionType": "git"}, {"lessThan": "f6837f34a34973ef6600c08195ed300e24e97317", "status": "affected", "version": "57eee3d23e8833ca18708b374c648235691942ba", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/base/core.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.26"}, {"lessThan": "2.6.26", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.249", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.99", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.16", "versionType": "semver"}, {"lessThanOrEqual": "6.2.*", "status": "unaffected", "version": "6.2.3", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "9D348797-6EB9-4DCA-AB7C-43C12A032085", "versionEndExcluding": "5.10.249", "versionStartIncluding": "2.6.26", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "5B8B2AC9-2F31-4A0F-96F5-7E26B50B27BB", "versionEndExcluding": "5.15.99", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "0FD95FDA-6525-4B13-B3FB-49D9995FD8ED", "versionEndExcluding": "6.1.16", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "88C67289-22AD-4CA9-B202-5F5A80E5BA4B", "versionEndExcluding": "6.2.3", "versionStartIncluding": "6.2", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: fix potential null-ptr-deref in device_add()\n\nI got the following null-ptr-deref report while doing fault injection test:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000058\nCPU: 2 PID: 278 Comm: 37-i2c-ds2482 Tainted: G B W N 6.1.0-rc3+\nRIP: 0010:klist_put+0x2d/0xd0\nCall Trace:\n <TASK>\n klist_remove+0xf1/0x1c0\n device_release_driver_internal+0x196/0x210\n bus_remove_device+0x1bd/0x240\n device_add+0xd3d/0x1100\n w1_add_master_device+0x476/0x490 [wire]\n ds2482_probe+0x303/0x3e0 [ds2482]\n\nThis is how it happened:\n\nw1_alloc_dev()\n // The dev->driver is set to w1_master_driver.\n memcpy(&dev->dev, device, sizeof(struct device));\n device_add()\n bus_add_device()\n dpm_sysfs_add() // It fails, calls bus_remove_device.\n\n // error path\n bus_remove_device()\n // The dev->driver is not null, but driver is not bound.\n __device_release_driver()\n klist_remove(&dev->p->knode_driver) <-- It causes null-ptr-deref.\n\n // normal path\n bus_probe_device() // It's not called yet.\n device_bind_driver()\n\nIf dev->driver is set, in the error path after calling bus_add_device()\nin device_add(), bus_remove_device() is called, then the device will be\ndetached from driver. But device_bind_driver() is not called yet, so it\ncauses null-ptr-deref while access the 'knode_driver'. To fix this, set\ndev->driver to null in the error path before calling bus_remove_device()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nn\u00facleo del controlador: corrige una potencial desreferencia de puntero nulo en device_add()\n\nRecib\u00ed el siguiente informe de desreferencia de puntero nulo mientras realizaba una prueba de inyecci\u00f3n de fallos:\n\nERROR: desreferencia de puntero NULL del kernel, direcci\u00f3n: 0000000000000058\nCPU: 2 PID: 278 Comm: 37-i2c-ds2482 Tainted: G B W N 6.1.0-rc3+\nRIP: 0010:klist_put+0x2d/0xd0\nTraza de llamadas:\n \n klist_remove+0xf1/0x1c0\n device_release_driver_internal+0x196/0x210\n bus_remove_device+0x1bd/0x240\n device_add+0xd3d/0x1100\n w1_add_master_device+0x476/0x490 [wire]\n ds2482_probe+0x303/0x3e0 [ds2482]\n\nAs\u00ed es como ocurri\u00f3:\n\nw1_alloc_dev()\n // El dev-&gt;driver se establece en w1_master_driver.\n memcpy(&amp;dev-&gt;dev, device, sizeof(struct device));\n device_add()\n bus_add_device()\n dpm_sysfs_add() // Falla, llama a bus_remove_device.\n\n // ruta de error\n bus_remove_device()\n // El dev-&gt;driver no es nulo, pero el controlador no est\u00e1 enlazado.\n __device_release_driver()\n klist_remove(&amp;dev-&gt;p-&gt;knode_driver) &lt;-- Causa una desreferencia de puntero nulo.\n\n // ruta normal\n bus_probe_device() // A\u00fan no se ha llamado.\n device_bind_driver()\n\nSi dev-&gt;driver est\u00e1 establecido, en la ruta de error despu\u00e9s de llamar a bus_add_device() en device_add(), se llama a bus_remove_device(), entonces el dispositivo ser\u00e1 desvinculado del controlador. Pero device_bind_driver() a\u00fan no se ha llamado, por lo que causa una desreferencia de puntero nulo al acceder a 'knode_driver'. Para solucionar esto, establece dev-&gt;driver en nulo en la ruta de error antes de llamar a bus_remove_device()."}], "id": "CVE-2023-54321", "lastModified": "2026-11-05T21:17:32.410", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2023-54321", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-05T20:27:22.600288Z", "version": "2.0.3"}}]}, "published": "2025-12-30T13:16:21.410", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/17982304806c5c10924e73f7ca5556e0d7378452"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2c59650d078b1b3f1ea50d5f8ee9fcc537dc02d3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7cf515bf9e8c2908dc170ecf2df117162a16c9c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/97aa8fb74bbe9aaf4ed5962a784f73b071bd16bf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f6837f34a34973ef6600c08195ed300e24e97317"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: driver core: fix potential null-ptr-deref in device_add()", "id": "2426138", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426138"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2023-54321", "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": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-54321\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-54321\nhttps://lore.kernel.org/linux-cve-announce/2025123022-CVE-2023-54321-b87f@gregkh/T"], "threat_severity": "Low"}

{}