{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43422", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.008Z", "datePublished": "2026-05-08T14:21:57.031Z", "dateUpdated": "2026-05-08T14:21:57.031Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-08T14:21:57.031Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: legacy: ncm: Fix NPE in gncm_bind\n\nCommit 56a512a9b410 (\"usb: gadget: f_ncm: align net_device lifecycle\nwith bind/unbind\") deferred the allocation of the net_device. This\nchange leads to a NULL pointer dereference in the legacy NCM driver as\nit attempts to access the net_device before it's fully instantiated.\n\nStore the provided qmult, host_addr, and dev_addr into the struct\nncm_opts->net_opts during gncm_bind(). These values will be properly\napplied to the net_device when it is allocated and configured later in\nthe binding process by the NCM function driver."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/gadget/legacy/ncm.c"], "versions": [{"version": "b62076e780a2121903ecf9ffdfb89c64647cb7da", "lessThan": "be5738d19bed244ede84da45bc45395bcb1d99e0", "status": "affected", "versionType": "git"}, {"version": "188338c1827842f898761a939669cf345bdf07e2", "lessThan": "b23e86a3a15803c3dcb24701285f73e65099fdf9", "status": "affected", "versionType": "git"}, {"version": "56a512a9b4107079f68701e7d55da8507eb963d9", "lessThan": "fde0634ad9856b3943a2d1a8cc8de174a63ac840", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/gadget/legacy/ncm.c"], "versions": [{"version": "6.18.17", "lessThan": "6.18.19", "status": "affected", "versionType": "semver"}, {"version": "6.19.7", "lessThan": "6.19.9", "status": "affected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.18.17", "versionEndExcluding": "6.18.19"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.19.7", "versionEndExcluding": "6.19.9"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/be5738d19bed244ede84da45bc45395bcb1d99e0"}, {"url": "https://git.kernel.org/stable/c/b23e86a3a15803c3dcb24701285f73e65099fdf9"}, {"url": "https://git.kernel.org/stable/c/fde0634ad9856b3943a2d1a8cc8de174a63ac840"}], "title": "usb: legacy: ncm: Fix NPE in gncm_bind", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: legacy: ncm: Fix NPE in gncm_bind\n\nCommit 56a512a9b410 (\"usb: gadget: f_ncm: align net_device lifecycle\nwith bind/unbind\") deferred the allocation of the net_device. This\nchange leads to a NULL pointer dereference in the legacy NCM driver as\nit attempts to access the net_device before it's fully instantiated.\n\nStore the provided qmult, host_addr, and dev_addr into the struct\nncm_opts->net_opts during gncm_bind(). These values will be properly\napplied to the net_device when it is allocated and configured later in\nthe binding process by the NCM function driver."}], "id": "CVE-2026-43422", "lastModified": "2026-05-08T15:16:54.290", "metrics": {}, "published": "2026-05-08T15:16:54.290", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b23e86a3a15803c3dcb24701285f73e65099fdf9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/be5738d19bed244ede84da45bc45395bcb1d99e0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fde0634ad9856b3943a2d1a8cc8de174a63ac840"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: usb: legacy: ncm: Fix NPE in gncm_bind", "id": "2468267", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2468267"}, "csaw": false, "cwe": "CWE-824", "details": ["A flaw was found in the Linux kernel's USB legacy NCM (Network Control Model) driver. This vulnerability occurs due to a NULL pointer dereference in the `gncm_bind` function, where the driver attempts to access a network device (`net_device`) before it has been fully initialized. An attacker could potentially trigger this flaw, leading to a system crash and a denial of service."], "name": "CVE-2026-43422", "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": "2026-05-08T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43422\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43422\nhttps://lore.kernel.org/linux-cve-announce/2026050847-CVE-2026-43422-6042@gregkh/T"]}