CVE-2025-38341

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-38341", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T04:51:24.005Z", "datePublished": "2025-07-10T08:15:10.928Z", "dateUpdated": "2026-08-05T12:01:13.843Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:01:13.843Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: fbnic: avoid double free when failing to DMA-map FW msg\n\nThe semantics are that caller of fbnic_mbx_map_msg() retains\nthe ownership of the message on error. All existing callers\ndutifully free the page."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - All trigger paths are local \u2014 a world-readable hwmon sysfs read (`/sys/class/hwmon/hwmonN/temp1_input`, mode 0444), netdev open/close ownership messages, devlink flash, and the driver's own heartbeat/mailbox-refill timers. No remote peer data reaches this code path.\nAC:L - The vulnerable path can be invoked at will and repeatedly (each sensor read issues up to five mailbox messages), and the required `dma_map_single()` failure is reachable by driving IOVA/swiotlb pressure concurrently, so the attacker can influence both the trigger rate and the failure condition.\nPR:L - `fbnic_hwmon_is_visible()` exposes the sensor attributes as 0444, so any unprivileged local account can drive `fbnic_fw_xmit_tsene_read_msg()` into `fbnic_mbx_map_msg()`; the heartbeat and Rx-refill callers reach the same code with no user context at all.\nUI:N - No victim action is needed \u2014 the attacker reads a sysfs file directly, and the heartbeat/mailbox-refill paths execute autonomously.\nS:U - The double free corrupts the kernel's own page allocator state within the same security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The `spin_unlock_irqrestore()` between the two `free_page()` calls opens a window for the page to be reallocated, so the second free hands an in-use page back to the allocator, allowing the attacker to obtain a page aliased with another allocation and read its contents.\nI:H - The same cross-allocation aliasing yields a write primitive over memory belonging to another owner (kernel structures or another task's pages), which is exploitable for control-flow hijacking or privilege escalation.\nA:H - With `CONFIG_DEBUG_VM` the second free hits `VM_BUG_ON_PAGE(page_ref_count(page) == 0)` for an immediate BUG/oops; otherwise the `_refcount` underflow and resulting use-after-free readily panic the kernel."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/meta/fbnic/fbnic_fw.c"], "versions": [{"version": "da3cde08209ec1c915195c2331c275397f34a731", "lessThan": "670179265ad787b9dd8e701601914618b8927755", "status": "affected", "versionType": "git"}, {"version": "da3cde08209ec1c915195c2331c275397f34a731", "lessThan": "0a211e23852019ef55c70094524e87a944accbb5", "status": "affected", "versionType": "git"}, {"version": "da3cde08209ec1c915195c2331c275397f34a731", "lessThan": "5bd1bafd4474ee26f504b41aba11f3e2a1175b88", "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/meta/fbnic/fbnic_fw.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.35", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15.4", "lessThanOrEqual": "6.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16", "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": "6.11", "versionEndExcluding": "6.12.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.15.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.16"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/670179265ad787b9dd8e701601914618b8927755"}, {"url": "https://git.kernel.org/stable/c/0a211e23852019ef55c70094524e87a944accbb5"}, {"url": "https://git.kernel.org/stable/c/5bd1bafd4474ee26f504b41aba11f3e2a1175b88"}], "title": "eth: fbnic: avoid double free when failing to DMA-map FW msg", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/meta/fbnic/fbnic_fw.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "670179265ad787b9dd8e701601914618b8927755", "status": "affected", "version": "da3cde08209ec1c915195c2331c275397f34a731", "versionType": "git"}, {"lessThan": "0a211e23852019ef55c70094524e87a944accbb5", "status": "affected", "version": "da3cde08209ec1c915195c2331c275397f34a731", "versionType": "git"}, {"lessThan": "5bd1bafd4474ee26f504b41aba11f3e2a1175b88", "status": "affected", "version": "da3cde08209ec1c915195c2331c275397f34a731", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/meta/fbnic/fbnic_fw.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.11"}, {"lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.35", "versionType": "semver"}, {"lessThanOrEqual": "6.15.*", "status": "unaffected", "version": "6.15.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.16", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "50E16863-852A-4232-B230-626F86B126F4", "versionEndExcluding": "6.12.35", "versionStartIncluding": "6.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "DFD174C5-1AA2-4671-BDDC-1A9FCC753655", "versionEndExcluding": "6.15.4", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc1:*:*:*:*:*:*", "matchCriteriaId": "6D4894DB-CCFE-4602-B1BF-3960B2E19A01", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*", "matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: fbnic: avoid double free when failing to DMA-map FW msg\n\nThe semantics are that caller of fbnic_mbx_map_msg() retains\nthe ownership of the message on error. All existing callers\ndutifully free the page."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: eth: fbnic: evita la doble liberaci\u00f3n al no poder asignar DMA a FW msg. La sem\u00e1ntica es que quien llama a fbnic_mbx_map_msg() conserva la propiedad del mensaje en caso de error. Todos los que llaman liberan la p\u00e1gina correctamente."}], "id": "CVE-2025-38341", "lastModified": "2026-07-30T06:23:07.843", "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": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}, {"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": "2025-07-10T09:15:28.890", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0a211e23852019ef55c70094524e87a944accbb5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5bd1bafd4474ee26f504b41aba11f3e2a1175b88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/670179265ad787b9dd8e701601914618b8927755"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: eth: fbnic: avoid double free when failing to DMA-map FW msg", "id": "2379238", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2379238"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-38341", "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": "2025-07-10T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-38341\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-38341\nhttps://lore.kernel.org/linux-cve-announce/2025071035-CVE-2025-38341-7446@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-07-13T11:06:31.487955+00:00", "updated": "2025-07-13T11:06:31.488044+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}