CVE-2025-39971

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2025-39971", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-04-16T07:20:57.149Z", "datePublished": "2025-10-15T07:55:54.270Z", "dateUpdated": "2026-08-05T12:06:40.599Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:06:40.599Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: fix idx validation in config queues msg\n\nEnsure idx is within range of active/initialized TCs when iterating over\nvf->ch[idx] in i40e_vc_config_queues_msg()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:L - The malicious input arrives as a `VIRTCHNL_OP_CONFIG_VSI_QUEUES` message on the SR-IOV VF\u2192PF admin-queue mailbox, a PCIe transport, not a network protocol. The attacker needs local control of an assigned VF (guest VM or VF-owning container), so this is local reachability rather than network or adjacent.\nAC:L - The attacker fully controls every input \u2014 `num_tc` and per-TC `count` via ENABLE_CHANNELS, then `num_queue_pairs` and the qpair array via CONFIG_VSI_QUEUES \u2014 so shrinking `num_tc` to leave stale `ch[]` entries and then walking `idx` into them is deterministic on the first attempt with no memory grooming or race. The only precondition, spoofchk disabled, is inherent to any ADq-enabled SR-IOV deployment and is a standard runtime configuration.\nPR:L - The attacker only needs to drive the VF's admin queue \u2014 kernel/root inside the assigned guest, or possession of the VFIO device \u2014 which is a low-privileged position relative to the host PF driver under attack. No privileges of any kind on the host are required.\nUI:N - The malicious VF sends the virtchnl message sequence entirely on its own initiative. No host administrator or other user action is needed at any stage.\nS:C - The attacking VF sits in a guest VM (or VF-assigned container) while the stale-index read and the resulting hardware queue-context programming occur in the host PF driver's security authority. The corrupted resources \u2014 HMC LAN Tx/Rx contexts and QTX_CTL bindings of VSIs belonging to the PF or to other VFs \u2014 are outside the attacker's scope, crossing the guest/host and inter-tenant SR-IOV boundary.\nC:H - Using a stale `ch[idx].vsi_id`, the VF resolves and reprograms the Rx queue context of a VSI it does not own, setting `rx_ctx.base` from its own `dma_ring_addr` so another VSI's received traffic is DMA'd into attacker-designated memory \u2014 interception of host and cross-guest traffic. On pre-5.2 kernels the same defect additionally reads past the end of `vf->ch[]` into adjacent `struct i40e_vf` state.\nI:H - `i40e_config_vsi_rx_queue()` performs no ownership check and `i40e_config_vsi_tx_queue()` validates only the VF-supplied `info->vsi_id`, so the stale ID lets the VF clear and rewrite the LAN HMC Tx/Rx contexts of a foreign VSI's queues and issue a `QTX_CTL` write rebinding that PF queue to itself. This is attacker-controlled modification of host- and peer-owned hardware state.\nA:H - Clearing and rewriting queue contexts belonging to the PF's main VSI or another guest's VSI stalls or wedges those queues, and out-of-range `pf_queue_id` values (`I40E_QUEUE_END_OF_LIST`) drive HMC operations that trigger adapter error paths, PF/VF reset storms and loss of host networking. The VF can repeat the sequence at will, and a downed host PF takes every guest on the adapter with it."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c"], "versions": [{"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "a6ff2af78343eceb0f77ab1a2fe802183bc21648", "status": "affected", "versionType": "git"}, {"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "f5f91d164af22e7147130ef8bebbdb28d8ecc6e2", "status": "affected", "versionType": "git"}, {"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "1fa0aadade34481c567cdf4a897c0d4e4d548bd1", "status": "affected", "versionType": "git"}, {"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "8b9c7719b0987b1c6c5fc910599f3618a558dbde", "status": "affected", "versionType": "git"}, {"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "2cc26dac0518d2fa9b67ec813ee60e183480f98a", "status": "affected", "versionType": "git"}, {"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "bfcc1dff429d4b99ba03e40ddacc68ea4be2b32b", "status": "affected", "versionType": "git"}, {"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "5c1f96123113e0bdc6d8dc2b0830184c93da9f65", "status": "affected", "versionType": "git"}, {"version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "f1ad24c5abe1eaef69158bac1405a74b3c365115", "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/intel/i40e/i40e_virtchnl_pf.c"], "versions": [{"version": "4.17", "status": "affected"}, {"version": "0", "lessThan": "4.17", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.300", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.245", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.194", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.155", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.109", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.50", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.16.10", "lessThanOrEqual": "6.16.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.17", "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": "4.17", "versionEndExcluding": "5.4.300"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "5.10.245"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "5.15.194"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.1.155"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.6.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.12.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.16.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.17", "versionEndExcluding": "6.17"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a6ff2af78343eceb0f77ab1a2fe802183bc21648"}, {"url": "https://git.kernel.org/stable/c/f5f91d164af22e7147130ef8bebbdb28d8ecc6e2"}, {"url": "https://git.kernel.org/stable/c/1fa0aadade34481c567cdf4a897c0d4e4d548bd1"}, {"url": "https://git.kernel.org/stable/c/8b9c7719b0987b1c6c5fc910599f3618a558dbde"}, {"url": "https://git.kernel.org/stable/c/2cc26dac0518d2fa9b67ec813ee60e183480f98a"}, {"url": "https://git.kernel.org/stable/c/bfcc1dff429d4b99ba03e40ddacc68ea4be2b32b"}, {"url": "https://git.kernel.org/stable/c/5c1f96123113e0bdc6d8dc2b0830184c93da9f65"}, {"url": "https://git.kernel.org/stable/c/f1ad24c5abe1eaef69158bac1405a74b3c365115"}], "title": "i40e: fix idx validation in config queues msg", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-16T15:52:18.829458Z", "id": "CVE-2025-39971", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T15:52:31.898Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-39971", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-16T15:52:18.829458Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T15:52:24.239Z"}}], "cna": {"title": "i40e: fix idx validation in config queues msg", "metrics": [{"cvssV3_1": {"version": "3.1", "baseScore": 8.8, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "AV:L - The malicious input arrives as a `VIRTCHNL_OP_CONFIG_VSI_QUEUES` message on the SR-IOV VF\u2192PF admin-queue mailbox, a PCIe transport, not a network protocol. The attacker needs local control of an assigned VF (guest VM or VF-owning container), so this is local reachability rather than network or adjacent.\nAC:L - The attacker fully controls every input \u2014 `num_tc` and per-TC `count` via ENABLE_CHANNELS, then `num_queue_pairs` and the qpair array via CONFIG_VSI_QUEUES \u2014 so shrinking `num_tc` to leave stale `ch[]` entries and then walking `idx` into them is deterministic on the first attempt with no memory grooming or race. The only precondition, spoofchk disabled, is inherent to any ADq-enabled SR-IOV deployment and is a standard runtime configuration.\nPR:L - The attacker only needs to drive the VF's admin queue \u2014 kernel/root inside the assigned guest, or possession of the VFIO device \u2014 which is a low-privileged position relative to the host PF driver under attack. No privileges of any kind on the host are required.\nUI:N - The malicious VF sends the virtchnl message sequence entirely on its own initiative. No host administrator or other user action is needed at any stage.\nS:C - The attacking VF sits in a guest VM (or VF-assigned container) while the stale-index read and the resulting hardware queue-context programming occur in the host PF driver's security authority. The corrupted resources \u2014 HMC LAN Tx/Rx contexts and QTX_CTL bindings of VSIs belonging to the PF or to other VFs \u2014 are outside the attacker's scope, crossing the guest/host and inter-tenant SR-IOV boundary.\nC:H - Using a stale `ch[idx].vsi_id`, the VF resolves and reprograms the Rx queue context of a VSI it does not own, setting `rx_ctx.base` from its own `dma_ring_addr` so another VSI's received traffic is DMA'd into attacker-designated memory \u2014 interception of host and cross-guest traffic. On pre-5.2 kernels the same defect additionally reads past the end of `vf->ch[]` into adjacent `struct i40e_vf` state.\nI:H - `i40e_config_vsi_rx_queue()` performs no ownership check and `i40e_config_vsi_tx_queue()` validates only the VF-supplied `info->vsi_id`, so the stale ID lets the VF clear and rewrite the LAN HMC Tx/Rx contexts of a foreign VSI's queues and issue a `QTX_CTL` write rebinding that PF queue to itself. This is attacker-controlled modification of host- and peer-owned hardware state.\nA:H - Clearing and rewriting queue contexts belonging to the PF's main VSI or another guest's VSI stalls or wedges those queues, and out-of-range `pf_queue_id` values (`I40E_QUEUE_END_OF_LIST`) drive HMC operations that trigger adapter error paths, PF/VF reset storms and loss of host networking. The VF can repeat the sequence at will, and a downed host PF takes every guest on the adapter with it."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "a6ff2af78343eceb0f77ab1a2fe802183bc21648", "versionType": "git"}, {"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "f5f91d164af22e7147130ef8bebbdb28d8ecc6e2", "versionType": "git"}, {"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "1fa0aadade34481c567cdf4a897c0d4e4d548bd1", "versionType": "git"}, {"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "8b9c7719b0987b1c6c5fc910599f3618a558dbde", "versionType": "git"}, {"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "2cc26dac0518d2fa9b67ec813ee60e183480f98a", "versionType": "git"}, {"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "bfcc1dff429d4b99ba03e40ddacc68ea4be2b32b", "versionType": "git"}, {"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "5c1f96123113e0bdc6d8dc2b0830184c93da9f65", "versionType": "git"}, {"status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "lessThan": "f1ad24c5abe1eaef69158bac1405a74b3c365115", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.17"}, {"status": "unaffected", "version": "0", "lessThan": "4.17", "versionType": "semver"}, {"status": "unaffected", "version": "5.4.300", "versionType": "semver", "lessThanOrEqual": "5.4.*"}, {"status": "unaffected", "version": "5.10.245", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.194", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.155", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.109", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.50", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.16.10", "versionType": "semver", "lessThanOrEqual": "6.16.*"}, {"status": "unaffected", "version": "6.17", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/a6ff2af78343eceb0f77ab1a2fe802183bc21648"}, {"url": "https://git.kernel.org/stable/c/f5f91d164af22e7147130ef8bebbdb28d8ecc6e2"}, {"url": "https://git.kernel.org/stable/c/1fa0aadade34481c567cdf4a897c0d4e4d548bd1"}, {"url": "https://git.kernel.org/stable/c/8b9c7719b0987b1c6c5fc910599f3618a558dbde"}, {"url": "https://git.kernel.org/stable/c/2cc26dac0518d2fa9b67ec813ee60e183480f98a"}, {"url": "https://git.kernel.org/stable/c/bfcc1dff429d4b99ba03e40ddacc68ea4be2b32b"}, {"url": "https://git.kernel.org/stable/c/5c1f96123113e0bdc6d8dc2b0830184c93da9f65"}, {"url": "https://git.kernel.org/stable/c/f1ad24c5abe1eaef69158bac1405a74b3c365115"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: fix idx validation in config queues msg\n\nEnsure idx is within range of active/initialized TCs when iterating over\nvf->ch[idx] in i40e_vc_config_queues_msg()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.4.300", "versionStartIncluding": "4.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.245", "versionStartIncluding": "4.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.194", "versionStartIncluding": "4.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.155", "versionStartIncluding": "4.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.109", "versionStartIncluding": "4.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.50", "versionStartIncluding": "4.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.16.10", "versionStartIncluding": "4.17"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.17", "versionStartIncluding": "4.17"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:06:40.599Z"}}}, "cveMetadata": {"cveId": "CVE-2025-39971", "state": "PUBLISHED", "dateUpdated": "2026-08-05T12:06:40.599Z", "dateReserved": "2025-04-16T07:20:57.149Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-10-15T07:55:54.270Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a6ff2af78343eceb0f77ab1a2fe802183bc21648", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}, {"lessThan": "f5f91d164af22e7147130ef8bebbdb28d8ecc6e2", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}, {"lessThan": "1fa0aadade34481c567cdf4a897c0d4e4d548bd1", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}, {"lessThan": "8b9c7719b0987b1c6c5fc910599f3618a558dbde", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}, {"lessThan": "2cc26dac0518d2fa9b67ec813ee60e183480f98a", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}, {"lessThan": "bfcc1dff429d4b99ba03e40ddacc68ea4be2b32b", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}, {"lessThan": "5c1f96123113e0bdc6d8dc2b0830184c93da9f65", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}, {"lessThan": "f1ad24c5abe1eaef69158bac1405a74b3c365115", "status": "affected", "version": "c27eac48160de72dee33d42b5a33cc7b8a2eb1f5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.17"}, {"lessThan": "4.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.300", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.245", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.194", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.155", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.109", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.50", "versionType": "semver"}, {"lessThanOrEqual": "6.16.*", "status": "unaffected", "version": "6.16.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "6.17", "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\ni40e: fix idx validation in config queues msg\n\nEnsure idx is within range of active/initialized TCs when iterating over\nvf->ch[idx] in i40e_vc_config_queues_msg()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ni40e: correcci\u00f3n de la validaci\u00f3n de idx en el mensaje de configuraci\u00f3n de colas\n\nAsegurar que idx est\u00e9 dentro del rango de los TCs activos/inicializados al iterar sobre vf->ch[idx] en i40e_vc_config_queues_msg()."}], "id": "CVE-2025-39971", "lastModified": "2026-10-19T21:10:00.160", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.0, "impactScore": 6.0, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2025-39971", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-06-16T15:52:18.829458Z", "version": "2.0.3"}}]}, "published": "2025-10-15T08:15:34.757", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1fa0aadade34481c567cdf4a897c0d4e4d548bd1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2cc26dac0518d2fa9b67ec813ee60e183480f98a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c1f96123113e0bdc6d8dc2b0830184c93da9f65"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8b9c7719b0987b1c6c5fc910599f3618a558dbde"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6ff2af78343eceb0f77ab1a2fe802183bc21648"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bfcc1dff429d4b99ba03e40ddacc68ea4be2b32b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f1ad24c5abe1eaef69158bac1405a74b3c365115"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f5f91d164af22e7147130ef8bebbdb28d8ecc6e2"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Deferred"}

{"bugzilla": {"description": "kernel: i40e: fix idx validation in config queues msg", "id": "2404108", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2404108"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2025-39971", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-10-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-39971\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-39971\nhttps://lore.kernel.org/linux-cve-announce/2025101556-CVE-2025-39971-97e2@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-20T13:26:58.394759+00:00", "updated": "2025-10-20T13:26:58.394794+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}