{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43276", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.998Z", "datePublished": "2026-05-06T11:28:58.840Z", "dateUpdated": "2026-05-11T22:21:25.701Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:21:25.701Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix double destroy_workqueue on service rescan PCI path\n\nWhile testing corner cases in the driver, a use-after-free crash\nwas found on the service rescan PCI path.\n\nWhen mana_serv_reset() calls mana_gd_suspend(), mana_gd_cleanup()\ndestroys gc->service_wq. If the subsequent mana_gd_resume() fails\nwith -ETIMEDOUT or -EPROTO, the code falls through to\nmana_serv_rescan() which triggers pci_stop_and_remove_bus_device().\nThis invokes the PCI .remove callback (mana_gd_remove), which calls\nmana_gd_cleanup() a second time, attempting to destroy the already-\nfreed workqueue. Fix this by NULL-checking gc->service_wq in\nmana_gd_cleanup() and setting it to NULL after destruction.\n\nCall stack of issue for reference:\n[Sat Feb 21 18:53:48 2026] Call Trace:\n[Sat Feb 21 18:53:48 2026] <TASK>\n[Sat Feb 21 18:53:48 2026] mana_gd_cleanup+0x33/0x70 [mana]\n[Sat Feb 21 18:53:48 2026] mana_gd_remove+0x3a/0xc0 [mana]\n[Sat Feb 21 18:53:48 2026] pci_device_remove+0x41/0xb0\n[Sat Feb 21 18:53:48 2026] device_remove+0x46/0x70\n[Sat Feb 21 18:53:48 2026] device_release_driver_internal+0x1e3/0x250\n[Sat Feb 21 18:53:48 2026] device_release_driver+0x12/0x20\n[Sat Feb 21 18:53:48 2026] pci_stop_bus_device+0x6a/0x90\n[Sat Feb 21 18:53:48 2026] pci_stop_and_remove_bus_device+0x13/0x30\n[Sat Feb 21 18:53:48 2026] mana_do_service+0x180/0x290 [mana]\n[Sat Feb 21 18:53:48 2026] mana_serv_func+0x24/0x50 [mana]\n[Sat Feb 21 18:53:48 2026] process_one_work+0x190/0x3d0\n[Sat Feb 21 18:53:48 2026] worker_thread+0x16e/0x2e0\n[Sat Feb 21 18:53:48 2026] kthread+0xf7/0x130\n[Sat Feb 21 18:53:48 2026] ? __pfx_worker_thread+0x10/0x10\n[Sat Feb 21 18:53:48 2026] ? __pfx_kthread+0x10/0x10\n[Sat Feb 21 18:53:48 2026] ret_from_fork+0x269/0x350\n[Sat Feb 21 18:53:48 2026] ? __pfx_kthread+0x10/0x10\n[Sat Feb 21 18:53:48 2026] ret_from_fork_asm+0x1a/0x30\n[Sat Feb 21 18:53:48 2026] </TASK>"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/microsoft/mana/gdma_main.c", "drivers/net/ethernet/microsoft/mana/mana_en.c"], "versions": [{"version": "505cc26bcae00699bacaee66cd50ede7a9cc89cb", "lessThan": "fa3c2f8d9152344a478abb847081c1b5f84a94f5", "status": "affected", "versionType": "git"}, {"version": "505cc26bcae00699bacaee66cd50ede7a9cc89cb", "lessThan": "a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e", "status": "affected", "versionType": "git"}, {"version": "505cc26bcae00699bacaee66cd50ede7a9cc89cb", "lessThan": "f975a0955276579e2176a134366ed586071c7c6a", "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/ethernet/microsoft/mana/gdma_main.c", "drivers/net/ethernet/microsoft/mana/mana_en.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "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": "6.16", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fa3c2f8d9152344a478abb847081c1b5f84a94f5"}, {"url": "https://git.kernel.org/stable/c/a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e"}, {"url": "https://git.kernel.org/stable/c/f975a0955276579e2176a134366ed586071c7c6a"}], "title": "net: mana: Fix double destroy_workqueue on service rescan PCI path", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "B4562EDA-AFEA-4C62-97CC-C83E109A5F19", "versionEndExcluding": "6.18.16", "versionStartIncluding": "6.16", "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}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix double destroy_workqueue on service rescan PCI path\n\nWhile testing corner cases in the driver, a use-after-free crash\nwas found on the service rescan PCI path.\n\nWhen mana_serv_reset() calls mana_gd_suspend(), mana_gd_cleanup()\ndestroys gc->service_wq. If the subsequent mana_gd_resume() fails\nwith -ETIMEDOUT or -EPROTO, the code falls through to\nmana_serv_rescan() which triggers pci_stop_and_remove_bus_device().\nThis invokes the PCI .remove callback (mana_gd_remove), which calls\nmana_gd_cleanup() a second time, attempting to destroy the already-\nfreed workqueue. Fix this by NULL-checking gc->service_wq in\nmana_gd_cleanup() and setting it to NULL after destruction.\n\nCall stack of issue for reference:\n[Sat Feb 21 18:53:48 2026] Call Trace:\n[Sat Feb 21 18:53:48 2026] <TASK>\n[Sat Feb 21 18:53:48 2026] mana_gd_cleanup+0x33/0x70 [mana]\n[Sat Feb 21 18:53:48 2026] mana_gd_remove+0x3a/0xc0 [mana]\n[Sat Feb 21 18:53:48 2026] pci_device_remove+0x41/0xb0\n[Sat Feb 21 18:53:48 2026] device_remove+0x46/0x70\n[Sat Feb 21 18:53:48 2026] device_release_driver_internal+0x1e3/0x250\n[Sat Feb 21 18:53:48 2026] device_release_driver+0x12/0x20\n[Sat Feb 21 18:53:48 2026] pci_stop_bus_device+0x6a/0x90\n[Sat Feb 21 18:53:48 2026] pci_stop_and_remove_bus_device+0x13/0x30\n[Sat Feb 21 18:53:48 2026] mana_do_service+0x180/0x290 [mana]\n[Sat Feb 21 18:53:48 2026] mana_serv_func+0x24/0x50 [mana]\n[Sat Feb 21 18:53:48 2026] process_one_work+0x190/0x3d0\n[Sat Feb 21 18:53:48 2026] worker_thread+0x16e/0x2e0\n[Sat Feb 21 18:53:48 2026] kthread+0xf7/0x130\n[Sat Feb 21 18:53:48 2026] ? __pfx_worker_thread+0x10/0x10\n[Sat Feb 21 18:53:48 2026] ? __pfx_kthread+0x10/0x10\n[Sat Feb 21 18:53:48 2026] ret_from_fork+0x269/0x350\n[Sat Feb 21 18:53:48 2026] ? __pfx_kthread+0x10/0x10\n[Sat Feb 21 18:53:48 2026] ret_from_fork_asm+0x1a/0x30\n[Sat Feb 21 18:53:48 2026] </TASK>"}], "id": "CVE-2026-43276", "lastModified": "2026-05-08T19:32:12.303", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-06T12:16:48.930", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f975a0955276579e2176a134366ed586071c7c6a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fa3c2f8d9152344a478abb847081c1b5f84a94f5"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: mana: Fix double destroy_workqueue on service rescan PCI path", "id": "2467113", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467113"}, "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"}, "cwe": "CWE-1341", "details": ["A flaw was found in the Linux kernel's mana network driver. This vulnerability, a use-after-free, occurs when the PCI service rescan path attempts to destroy an already-freed workqueue a second time. A local attacker could exploit this condition to cause a system crash, leading to a denial of service."], "name": "CVE-2026-43276", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "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": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43276\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43276\nhttps://lore.kernel.org/linux-cve-announce/2026050612-CVE-2026-43276-907b@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[505cc26bcae00699bacaee66cd50ede7a9cc89cb,fa3c2f8d9152344a478abb847081c1b5f84a94f5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[505cc26bcae00699bacaee66cd50ede7a9cc89cb,a9a7c3203fdc4d4a8d8a7a3b1ed05d2bb4c6e77e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[505cc26bcae00699bacaee66cd50ede7a9cc89cb,f975a0955276579e2176a134366ed586071c7c6a)"}}], "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": "generic", "value": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.16)"}}, {"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": "generic", "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": "2026-05-06T16:15:06.979839+00:00", "updated": "2026-05-08T21:00:10.214817+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}