{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-22117", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.823Z", "datePublished": "2025-04-16T14:13:03.099Z", "dateUpdated": "2026-08-05T11:56:54.360Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:56:54.360Z" }, "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." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:H", "baseScore": 8.7, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The attacker reaches the code by writing a crafted VIRTCHNL_OP_ADD_FDIR_FILTER message to the SR-IOV VF-to-PF mailbox, which requires local control of a VF PCI function (typically a passed-through VF inside a tenant guest VM), not network access. 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 — i.e. root inside the guest VM or container that the host administrator deliberately handed the VF to — 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 — 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 — far beyond a \"strictly bounded few bytes\" — 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 — every downstream copy is bounded (`ICE_PARSER_MAX_PKT_LEN` clamp, `ICE_PARSER_FV_MAX` cap, `u8` `conf->pkt_len`) — 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 — 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" } } } }