CVE-2026-72037

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72037", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.901Z", "datePublished": "2026-08-15T05:51:57.745Z", "dateUpdated": "2026-08-17T05:07:02.911Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:07:02.911Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan743x: Initialize eth_syslock spinlock before use\n\nlan743x_hardware_init() calls pci11x1x_strap_get_status() during the\nPCI11x1x probe sequence. That helper acquires the Ethernet subsystem\nhardware lock via lan743x_hs_syslock_acquire(), which relies on\nadapter->eth_syslock_spinlock to serialize access.\n\nThe spinlock is currently initialized only after the strap status is\nread. With CONFIG_DEBUG_SPINLOCK enabled, taking the zeroed initialized\nspinlock can trip the spinlock debug check.\n\nFix by initializing adapter->eth_syslock_spinlock before reading the\nstrap status so the probe path never attempts to lock an uninitialized\nspinlock."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/microchip/lan743x_main.c"], "versions": [{"version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "lessThan": "dfaefd9a7808736fcd2ed0de108f55c4badc15cc", "status": "affected", "versionType": "git"}, {"version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "lessThan": "6523daa6852b1bfef32ec7a105b0217e8a115687", "status": "affected", "versionType": "git"}, {"version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "lessThan": "b6a93a42e0e61f0ba0005a942ee3bffb16c0574e", "status": "affected", "versionType": "git"}, {"version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "lessThan": "99a6f37b113c46815deb160c5012073563679ef4", "status": "affected", "versionType": "git"}, {"version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "lessThan": "b99e890e6b32ffa11c145a16fefcf2c7137a9578", "status": "affected", "versionType": "git"}, {"version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "lessThan": "39139b1c1c2b614096519b526112c726adb12ff0", "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/microchip/lan743x_main.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.0", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/dfaefd9a7808736fcd2ed0de108f55c4badc15cc"}, {"url": "https://git.kernel.org/stable/c/6523daa6852b1bfef32ec7a105b0217e8a115687"}, {"url": "https://git.kernel.org/stable/c/b6a93a42e0e61f0ba0005a942ee3bffb16c0574e"}, {"url": "https://git.kernel.org/stable/c/99a6f37b113c46815deb160c5012073563679ef4"}, {"url": "https://git.kernel.org/stable/c/b99e890e6b32ffa11c145a16fefcf2c7137a9578"}, {"url": "https://git.kernel.org/stable/c/39139b1c1c2b614096519b526112c726adb12ff0"}], "title": "net: lan743x: Initialize eth_syslock spinlock before use", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/microchip/lan743x_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "dfaefd9a7808736fcd2ed0de108f55c4badc15cc", "status": "affected", "version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "versionType": "git"}, {"lessThan": "6523daa6852b1bfef32ec7a105b0217e8a115687", "status": "affected", "version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "versionType": "git"}, {"lessThan": "b6a93a42e0e61f0ba0005a942ee3bffb16c0574e", "status": "affected", "version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "versionType": "git"}, {"lessThan": "99a6f37b113c46815deb160c5012073563679ef4", "status": "affected", "version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "versionType": "git"}, {"lessThan": "b99e890e6b32ffa11c145a16fefcf2c7137a9578", "status": "affected", "version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "versionType": "git"}, {"lessThan": "39139b1c1c2b614096519b526112c726adb12ff0", "status": "affected", "version": "46b777ad9a8c269113634cee6a380bc4e53f3964", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/microchip/lan743x_main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.0"}, {"lessThan": "6.0", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: lan743x: Initialize eth_syslock spinlock before use\n\nlan743x_hardware_init() calls pci11x1x_strap_get_status() during the\nPCI11x1x probe sequence. That helper acquires the Ethernet subsystem\nhardware lock via lan743x_hs_syslock_acquire(), which relies on\nadapter->eth_syslock_spinlock to serialize access.\n\nThe spinlock is currently initialized only after the strap status is\nread. With CONFIG_DEBUG_SPINLOCK enabled, taking the zeroed initialized\nspinlock can trip the spinlock debug check.\n\nFix by initializing adapter->eth_syslock_spinlock before reading the\nstrap status so the probe path never attempts to lock an uninitialized\nspinlock."}], "id": "CVE-2026-72037", "lastModified": "2026-08-17T06:18:01.600", "metrics": {}, "published": "2026-08-15T06:21:12.740", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/39139b1c1c2b614096519b526112c726adb12ff0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6523daa6852b1bfef32ec7a105b0217e8a115687"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/99a6f37b113c46815deb160c5012073563679ef4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b6a93a42e0e61f0ba0005a942ee3bffb16c0574e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b99e890e6b32ffa11c145a16fefcf2c7137a9578"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dfaefd9a7808736fcd2ed0de108f55c4badc15cc"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: net: lan743x: Initialize eth_syslock spinlock before use", "id": "2516284", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516284"}, "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-908", "details": ["A flaw was found in the Linux kernel's `lan743x` Ethernet driver. A system lock, or spinlock, is accessed during the driver's initialization sequence before it has been properly set up. This improper initialization can lead to a system crash if kernel debugging features are enabled, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-72037", "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72037\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72037\nhttps://lore.kernel.org/linux-cve-announce/2026081513-CVE-2026-72037-1c63@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b777ad9a8c269113634cee6a380bc4e53f3964,dfaefd9a7808736fcd2ed0de108f55c4badc15cc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b777ad9a8c269113634cee6a380bc4e53f3964,6523daa6852b1bfef32ec7a105b0217e8a115687)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b777ad9a8c269113634cee6a380bc4e53f3964,99a6f37b113c46815deb160c5012073563679ef4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b777ad9a8c269113634cee6a380bc4e53f3964,b6a93a42e0e61f0ba0005a942ee3bffb16c0574e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b777ad9a8c269113634cee6a380bc4e53f3964,b99e890e6b32ffa11c145a16fefcf2c7137a9578)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[46b777ad9a8c269113634cee6a380bc4e53f3964,39139b1c1c2b614096519b526112c726adb12ff0)"}}], "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": "6.0"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc2,*]"}}], "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": "2026-08-15T09:45:03.366825+00:00", "updated": "2026-08-18T05:30:08.322906+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}