CVE-2026-46073

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46073", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.095Z", "datePublished": "2026-05-27T12:58:01.478Z", "dateUpdated": "2026-06-14T17:52:19.817Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-14T17:52:19.817Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt\n\nwait_for_completion_interruptible_timeout() returns -ERESTARTSYS when\ninterrupted. This needs to abort the URB and return an error. No data\nhas been received from the device so any reads from the transfer\nbuffer are invalid.\n\nThe original code tests !ret, which only catches the timeout case (0).\nOn signal delivery (-ERESTARTSYS), !ret is false so the function skips\nusb_kill_urb() and falls through to read from the unfilled transfer\nbuffer.\n\nFix by capturing the return value into a long (matching the function\nreturn type) and handling signal (negative) and timeout (zero) cases\nwith separate checks that both call usb_kill_urb() before returning."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hwmon/powerz.c"], "versions": [{"version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "lessThan": "8b51277eec433d4e724b273a5a5c64e8acfbe405", "status": "affected", "versionType": "git"}, {"version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "lessThan": "b6cb07f02253bdefd2339e57eaa1428a7b28cd0f", "status": "affected", "versionType": "git"}, {"version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "lessThan": "d64458784036f5818e22781254b6be299d52a19c", "status": "affected", "versionType": "git"}, {"version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "lessThan": "b66437cb20a2d9ef201f40b675569f8ea7787c9f", "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/hwmon/powerz.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.86", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "6.7", "versionEndExcluding": "6.12.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8b51277eec433d4e724b273a5a5c64e8acfbe405"}, {"url": "https://git.kernel.org/stable/c/b6cb07f02253bdefd2339e57eaa1428a7b28cd0f"}, {"url": "https://git.kernel.org/stable/c/d64458784036f5818e22781254b6be299d52a19c"}, {"url": "https://git.kernel.org/stable/c/b66437cb20a2d9ef201f40b675569f8ea7787c9f"}], "title": "hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/hwmon/powerz.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8b51277eec433d4e724b273a5a5c64e8acfbe405", "status": "affected", "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "versionType": "git"}, {"lessThan": "b6cb07f02253bdefd2339e57eaa1428a7b28cd0f", "status": "affected", "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "versionType": "git"}, {"lessThan": "d64458784036f5818e22781254b6be299d52a19c", "status": "affected", "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "versionType": "git"}, {"lessThan": "b66437cb20a2d9ef201f40b675569f8ea7787c9f", "status": "affected", "version": "4381a36abdf1c5c0323c1c51f869dc000115eb20", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/hwmon/powerz.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.7"}, {"lessThan": "6.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.86", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.27", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "55DA1C62-9991-451E-B8A8-E0004E00F789", "versionEndExcluding": "6.12.86", "versionStartIncluding": "6.7", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "A10AC84F-C058-47D5-85B4-E6E51A613B74", "versionEndExcluding": "6.18.27", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "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\nhwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt\n\nwait_for_completion_interruptible_timeout() returns -ERESTARTSYS when\ninterrupted. This needs to abort the URB and return an error. No data\nhas been received from the device so any reads from the transfer\nbuffer are invalid.\n\nThe original code tests !ret, which only catches the timeout case (0).\nOn signal delivery (-ERESTARTSYS), !ret is false so the function skips\nusb_kill_urb() and falls through to read from the unfilled transfer\nbuffer.\n\nFix by capturing the return value into a long (matching the function\nreturn type) and handling signal (negative) and timeout (zero) cases\nwith separate checks that both call usb_kill_urb() before returning."}], "id": "CVE-2026-46073", "lastModified": "2026-06-24T16:59:26.080", "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"}]}, "published": "2026-05-27T14:17:28.607", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8b51277eec433d4e724b273a5a5c64e8acfbe405"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b66437cb20a2d9ef201f40b675569f8ea7787c9f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b6cb07f02253bdefd2339e57eaa1428a7b28cd0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d64458784036f5818e22781254b6be299d52a19c"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt", "id": "2482165", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482165"}, "csaw": false, "cwe": "CWE-826", "details": ["A flaw was found in the Linux kernel's hwmon subsystem, specifically within the powerz driver. When a signal interrupt occurs during the wait_for_completion_interruptible_timeout() function, the system fails to properly abort the USB Request Block (URB). This oversight can lead to the kernel attempting to read data from an uninitialized or unfilled transfer buffer, potentially causing system instability or a denial of service."], "name": "CVE-2026-46073", "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": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46073\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46073\nhttps://lore.kernel.org/linux-cve-announce/2026052758-CVE-2026-46073-37b0@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4381a36abdf1c5c0323c1c51f869dc000115eb20,8b51277eec433d4e724b273a5a5c64e8acfbe405)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4381a36abdf1c5c0323c1c51f869dc000115eb20,b6cb07f02253bdefd2339e57eaa1428a7b28cd0f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4381a36abdf1c5c0323c1c51f869dc000115eb20,d64458784036f5818e22781254b6be299d52a19c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[4381a36abdf1c5c0323c1c51f869dc000115eb20,b66437cb20a2d9ef201f40b675569f8ea7787c9f)"}}], "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": "affected", "versions": {"scheme": "semver", "value": "6.7"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.7)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.86,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.27,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.4,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "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": "2026-05-27T20:15:16.211751+00:00", "updated": "2026-08-12T03:30:04.365000+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}