{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43255", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.996Z", "datePublished": "2026-05-06T11:28:44.522Z", "dateUpdated": "2026-05-11T22:21:00.707Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:21:00.707Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix WARNING in usb_tx_block\n\nThe function usb_tx_block() submits cardp->tx_urb without ensuring that\nany previous transmission on this URB has completed. If a second call\noccurs while the URB is still active (e.g. during rapid firmware loading),\nusb_submit_urb() detects the active state and triggers a warning:\n'URB submitted while active'.\n\nFix this by enforcing serialization: call usb_kill_urb() before\nsubmitting the new request. This ensures the URB is idle and safe to reuse."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/wireless/marvell/libertas/if_usb.c"], "versions": [{"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "498525d8358d6d20918787e59736d5b6a021e9fd", "status": "affected", "versionType": "git"}, {"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "2902a9b4415a6bafc9b1e5dd360f065d757a0bb7", "status": "affected", "versionType": "git"}, {"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "948a39c95d0f8d73722910f8cdb7b6e3e9206232", "status": "affected", "versionType": "git"}, {"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "5bfb25495e391a1be0db94b15715174fa06b93a1", "status": "affected", "versionType": "git"}, {"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "b82073564373e68c6ae3a96039fae14cd002a496", "status": "affected", "versionType": "git"}, {"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "3308c7504e093b22e91a4468470309cee2e26b83", "status": "affected", "versionType": "git"}, {"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "fc188b44547dea4e7350833171982a6312befde9", "status": "affected", "versionType": "git"}, {"version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "lessThan": "d66676e6ca96bf8680f869a9bd6573b26c634622", "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/net/wireless/marvell/libertas/if_usb.c"], "versions": [{"version": "2.6.22", "status": "affected"}, {"version": "0", "lessThan": "2.6.22", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.252", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.202", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.165", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "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": "2.6.22", "versionEndExcluding": "5.10.252"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "5.15.202"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.1.165"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.22", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/498525d8358d6d20918787e59736d5b6a021e9fd"}, {"url": "https://git.kernel.org/stable/c/2902a9b4415a6bafc9b1e5dd360f065d757a0bb7"}, {"url": "https://git.kernel.org/stable/c/948a39c95d0f8d73722910f8cdb7b6e3e9206232"}, {"url": "https://git.kernel.org/stable/c/5bfb25495e391a1be0db94b15715174fa06b93a1"}, {"url": "https://git.kernel.org/stable/c/b82073564373e68c6ae3a96039fae14cd002a496"}, {"url": "https://git.kernel.org/stable/c/3308c7504e093b22e91a4468470309cee2e26b83"}, {"url": "https://git.kernel.org/stable/c/fc188b44547dea4e7350833171982a6312befde9"}, {"url": "https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622"}], "title": "wifi: libertas: fix WARNING in usb_tx_block", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/libertas/if_usb.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "498525d8358d6d20918787e59736d5b6a021e9fd", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}, {"lessThan": "2902a9b4415a6bafc9b1e5dd360f065d757a0bb7", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}, {"lessThan": "948a39c95d0f8d73722910f8cdb7b6e3e9206232", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}, {"lessThan": "5bfb25495e391a1be0db94b15715174fa06b93a1", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}, {"lessThan": "b82073564373e68c6ae3a96039fae14cd002a496", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}, {"lessThan": "3308c7504e093b22e91a4468470309cee2e26b83", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}, {"lessThan": "fc188b44547dea4e7350833171982a6312befde9", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}, {"lessThan": "d66676e6ca96bf8680f869a9bd6573b26c634622", "status": "affected", "version": "876c9d3aeb989cf1961f2c228d309ba5dcfb1172", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/wireless/marvell/libertas/if_usb.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.22"}, {"lessThan": "2.6.22", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.252", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.202", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.165", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.128", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.75", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.16", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "045B0D8F-6A7D-440E-845B-FD59F69D247A", "versionEndExcluding": "5.10.252", "versionStartIncluding": "2.6.22", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "4002FC2B-1456-4666-B240-0EBF590C4671", "versionEndExcluding": "5.15.202", "versionStartIncluding": "5.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "797C7F46-D0BE-4FB8-A502-C5EF8E6B6654", "versionEndExcluding": "6.1.165", "versionStartIncluding": "5.16", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "851E9353-6C09-4CC9-877E-E09DB164A3C2", "versionEndExcluding": "6.6.128", "versionStartIncluding": "6.2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "BCE16369-98ED-41CF-8995-DFDC10B288D2", "versionEndExcluding": "6.12.75", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4B8CDA9-BADF-4CF5-8B3B-702DE8EEA40B", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "373EEEDA-FAA1-4FB4-B6ED-DB4DD99DBE67", "versionEndExcluding": "6.19.6", "versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libertas: fix WARNING in usb_tx_block\n\nThe function usb_tx_block() submits cardp->tx_urb without ensuring that\nany previous transmission on this URB has completed. If a second call\noccurs while the URB is still active (e.g. during rapid firmware loading),\nusb_submit_urb() detects the active state and triggers a warning:\n'URB submitted while active'.\n\nFix this by enforcing serialization: call usb_kill_urb() before\nsubmitting the new request. This ensures the URB is idle and safe to reuse."}], "id": "CVE-2026-43255", "lastModified": "2026-06-17T10:49:15.193", "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": "[email protected]", "type": "Primary"}]}, "published": "2026-05-06T12:16:46.263", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2902a9b4415a6bafc9b1e5dd360f065d757a0bb7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3308c7504e093b22e91a4468470309cee2e26b83"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/498525d8358d6d20918787e59736d5b6a021e9fd"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5bfb25495e391a1be0db94b15715174fa06b93a1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/948a39c95d0f8d73722910f8cdb7b6e3e9206232"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b82073564373e68c6ae3a96039fae14cd002a496"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d66676e6ca96bf8680f869a9bd6573b26c634622"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fc188b44547dea4e7350833171982a6312befde9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "[email protected]", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: wifi: libertas: fix WARNING in usb_tx_block", "id": "2467091", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467091"}, "csaw": false, "details": ["No description is available for this CVE."], "name": "CVE-2026-43255", "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": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43255\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43255\nhttps://lore.kernel.org/linux-cve-announce/2026050605-CVE-2026-43255-d0bf@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,498525d8358d6d20918787e59736d5b6a021e9fd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,2902a9b4415a6bafc9b1e5dd360f065d757a0bb7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,948a39c95d0f8d73722910f8cdb7b6e3e9206232)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,5bfb25495e391a1be0db94b15715174fa06b93a1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,b82073564373e68c6ae3a96039fae14cd002a496)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,3308c7504e093b22e91a4468470309cee2e26b83)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,fc188b44547dea4e7350833171982a6312befde9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,d66676e6ca96bf8680f869a9bd6573b26c634622)"}}], "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": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.252,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.202,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.165,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.128,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.75,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.16,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.6,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "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": "2026-05-06T16:45:07.231655+00:00", "updated": "2026-05-11T22:30:08.371315+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}