{"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"}}}}