CVE-2025-22117

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No remote or adjacent-network protocol can reach `ice_vc_fdir_parse_raw()`.\nAC:L - A single deterministic message with `tunnel_level=0`, `count=0`, and `raw.pkt_len=0xFFFF` triggers the 61 KB out-of-bounds read every time; there is no race, no memory-layout dependency, and the only prerequisites (FD enabled, VIRTCHNL_VF_OFFLOAD_FDIR_PF) are defaults or self-negotiated by the attacking VF.\nPR:L - The attacker needs control of the VF mailbox \u2014 i.e. root inside the guest VM or container that the host administrator deliberately handed the VF to \u2014 which is a low-privileged principal from the host kernel's security authority, with no host-side credential or capability check anywhere on the path.\nUI:N - The PF driver processes VF mailbox messages autonomously in the ice service task; no host administrator or user action is required beyond the pre-existing SR-IOV configuration.\nS:C - The ice PF driver is the isolation enforcement point between a VF and the host, so a guest-owned VF causing host kernel heap disclosure and mis-programming of the shared FDIR pipeline crosses the guest-to-host boundary and impacts the PF and all other VFs \u2014 resources outside the attacking VF's security authority.\nC:H - Up to ~61 KB of adjacent host kernel heap is read out of bounds past the 4096-byte mailbox buffer \u2014 far beyond a \"strictly bounded few bytes\" \u2014 and the leaked bytes are copied into `prof->fv[].spec/msk` and the FDIR training packet programmed into hardware, giving the VF a matching-behaviour oracle to recover them.\nI:L - There is no out-of-bounds write \u2014 every downstream copy is bounded (`ICE_PARSER_MAX_PKT_LEN` clamp, `ICE_PARSER_FV_MAX` cap, `u8` `conf->pkt_len`) \u2014 but the attacker does cause unintended kernel heap contents to be programmed as FDIR profiles and training packets into the shared NIC pipeline, a limited modification of host and device state affecting flow steering.\nA:H - Reading ~61 KB past a kmalloc-4096 object can walk into an unmapped direct-map page, a KFENCE guard page, or a DEBUG_PAGEALLOC/rodata_full hole and oops the host in the mailbox work context, and on KASAN builds it is a guaranteed slab-out-of-bounds splat \u2014 a crash of the host kernel and its networking."}]}], "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/ice/ice_virtchnl_fdir.c"], "versions": [{"version": "99f419df8a5c5e1a58822203989f77712d01d410", "lessThan": "363377af2c9e874fbba3a199408f8ec7b37906f7", "status": "affected", "versionType": "git"}, {"version": "99f419df8a5c5e1a58822203989f77712d01d410", "lessThan": "362f704ba73a359db9cded567e891d9a8f081875", "status": "affected", "versionType": "git"}, {"version": "99f419df8a5c5e1a58822203989f77712d01d410", "lessThan": "1388dd564183a5a18ec4a966748037736b5653c5", "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/ice/ice_virtchnl_fdir.c"], "versions": [{"version": "6.12", "status": "affected"}, {"version": "0", "lessThan": "6.12", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.80", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.14.2", "lessThanOrEqual": "6.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.15", "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": "6.12", "versionEndExcluding": "6.12.80"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.14.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12", "versionEndExcluding": "6.15"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/363377af2c9e874fbba3a199408f8ec7b37906f7"}, {"url": "https://git.kernel.org/stable/c/362f704ba73a359db9cded567e891d9a8f081875"}, {"url": "https://git.kernel.org/stable/c/1388dd564183a5a18ec4a966748037736b5653c5"}], "title": "ice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2025-22117", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-15T21:44:29.069196Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-15T21:51:57.841Z"}}]}}

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No remote or adjacent-network protocol can reach `ice_vc_fdir_parse_raw()`.\nAC:L - A single deterministic message with `tunnel_level=0`, `count=0`, and `raw.pkt_len=0xFFFF` triggers the 61 KB out-of-bounds read every time; there is no race, no memory-layout dependency, and the only prerequisites (FD enabled, VIRTCHNL_VF_OFFLOAD_FDIR_PF) are defaults or self-negotiated by the attacking VF.\nPR:L - The attacker needs control of the VF mailbox \u2014 i.e. root inside the guest VM or container that the host administrator deliberately handed the VF to \u2014 which is a low-privileged principal from the host kernel's security authority, with no host-side credential or capability check anywhere on the path.\nUI:N - The PF driver processes VF mailbox messages autonomously in the ice service task; no host administrator or user action is required beyond the pre-existing SR-IOV configuration.\nS:C - The ice PF driver is the isolation enforcement point between a VF and the host, so a guest-owned VF causing host kernel heap disclosure and mis-programming of the shared FDIR pipeline crosses the guest-to-host boundary and impacts the PF and all other VFs \u2014 resources outside the attacking VF's security authority.\nC:H - Up to ~61 KB of adjacent host kernel heap is read out of bounds past the 4096-byte mailbox buffer \u2014 far beyond a \"strictly bounded few bytes\" \u2014 and the leaked bytes are copied into `prof->fv[].spec/msk` and the FDIR training packet programmed into hardware, giving the VF a matching-behaviour oracle to recover them.\nI:L - There is no out-of-bounds write \u2014 every downstream copy is bounded (`ICE_PARSER_MAX_PKT_LEN` clamp, `ICE_PARSER_FV_MAX` cap, `u8` `conf->pkt_len`) \u2014 but the attacker does cause unintended kernel heap contents to be programmed as FDIR profiles and training packets into the shared NIC pipeline, a limited modification of host and device state affecting flow steering.\nA:H - Reading ~61 KB past a kmalloc-4096 object can walk into an unmapped direct-map page, a KFENCE guard page, or a DEBUG_PAGEALLOC/rodata_full hole and oops the host in the mailbox work context, and on KASAN builds it is a guaranteed slab-out-of-bounds splat \u2014 a crash of the host kernel and its networking."}]}], "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "99f419df8a5c5e1a58822203989f77712d01d410", "lessThan": "363377af2c9e874fbba3a199408f8ec7b37906f7", "versionType": "git"}, {"status": "affected", "version": "99f419df8a5c5e1a58822203989f77712d01d410", "lessThan": "362f704ba73a359db9cded567e891d9a8f081875", "versionType": "git"}, {"status": "affected", "version": "99f419df8a5c5e1a58822203989f77712d01d410", "lessThan": "1388dd564183a5a18ec4a966748037736b5653c5", "versionType": "git"}], "programFiles": ["drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.12"}, {"status": "unaffected", "version": "0", "lessThan": "6.12", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.80", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.14.2", "versionType": "semver", "lessThanOrEqual": "6.14.*"}, {"status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/363377af2c9e874fbba3a199408f8ec7b37906f7"}, {"url": "https://git.kernel.org/stable/c/362f704ba73a359db9cded567e891d9a8f081875"}, {"url": "https://git.kernel.org/stable/c/1388dd564183a5a18ec4a966748037736b5653c5"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()\n\nFix using the untrusted value of proto->raw.pkt_len in function\nice_vc_fdir_parse_raw() by verifying if it does not exceed the\nVIRTCHNL_MAX_SIZE_RAW_PACKET value."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.80", "versionStartIncluding": "6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.14.2", "versionStartIncluding": "6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.15", "versionStartIncluding": "6.12"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:56:54.360Z"}}}, "cveMetadata": {"cveId": "CVE-2025-22117", "state": "PUBLISHED", "dateUpdated": "2026-10-15T21:51:57.841Z", "dateReserved": "2024-12-29T08:45:45.823Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2025-04-16T14:13:03.099Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

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{"bugzilla": {"description": "kernel: ice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()", "id": "2360228", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360228"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-20", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()\nFix using the untrusted value of proto->raw.pkt_len in function\nice_vc_fdir_parse_raw() by verifying if it does not exceed the\nVIRTCHNL_MAX_SIZE_RAW_PACKET value."], "name": "CVE-2025-22117", "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": "2025-04-16T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2025-22117\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-22117\nhttps://lore.kernel.org/linux-cve-announce/2025041626-CVE-2025-22117-2d76@gregkh/T"], "threat_severity": "Low"}

{"created": "2026-04-28T11:45:30.243174+00:00", "updated": "2026-08-04T09:15:03.489073+00:00", "vendors": []}