{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2024-35889", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-05-17T13:50:33.113Z", "datePublished": "2024-05-19T08:34:45.274Z", "dateUpdated": "2026-08-05T11:30:43.420Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T11:30:43.420Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix kernel panic on unknown packet types\n\nIn the very rare case where a packet type is unknown to the driver,\nidpf_rx_process_skb_fields would return early without calling\neth_type_trans to set the skb protocol / the network layer handler.\nThis is especially problematic if tcpdump is running when such a\npacket is received, i.e. it would cause a kernel panic.\n\nInstead, call eth_type_trans for every single packet, even when\nthe packet type is unknown." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H", "baseScore": 8.6, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:N - The bug is reached purely by processing a received Ethernet frame in the idpf splitq NAPI RX path, before any protocol demux, socket lookup, or firewall, so any remote party able to get a packet to the interface triggers it. Frames that the E2100/IPU parser leaves unclassified include routable traffic (unusual IP protocol numbers, exotic IPv6 extension-header chains, unsupported nested tunnels), so reachability is not limited to the local L2 segment.\nAC:L - The attacker fully controls the only variable that matters — the packet's protocol layout — and can sweep encapsulations until the NIC returns a ptype absent from the driver's lookup table; no race, no memory grooming, no timing window. The consumers that turn the malformed skb into a panic or an OOB read (AF_PACKET/tcpdump taps, bridge/OVS rx_handler, GRO header comparison) are ubiquitous on the cloud-host and cloud-VM systems where idpf is deployed, and the GRO path needs no extra configuration at all.\nPR:N - No credentials, authentication, or local account are required; the panic occurs in idpf's softirq RX path before any protocol demux, so the frame need not even be addressed to a listening service. Any unauthenticated sender on the network suffices.\nUI:N - Triggering requires only that the victim's idpf interface be up and receiving; the fault happens in softirq context during ordinary packet reception. No local user or administrator has to open, mount, or click anything.\nS:U - The vulnerable driver code and the impacted resource are both the same kernel — a standard in-kernel crash and in-kernel OOB read with no crossing of a VM, IOMMU, or sandbox security authority.\nC:L - Because mac_header is left at the 0xFFFF \"unset\" sentinel, consumers dereference skb->head + 65535: gro_list_prepare()'s compare_ether_header() reads 14 bytes of unrelated kernel memory out of bounds on the normal GRO path, and br_handle_frame() reads eth_hdr()->h_source from the same address, with those out-of-bounds bytes then learned into the bridge FDB where any local user can read them back via netlink. The disclosure is real but bounded to a fixed 14-byte window rather than an arbitrary read.\nI:L - Out-of-bounds bytes are written into kernel forwarding state (bridge FDB entries learned from head+65535), and the skb is propagated with corrupted metadata — protocol 0, wrapped mac_len, un-stripped Ethernet header — which misdirects downstream forwarding and header parsing. There is no arbitrary-write primitive: skb_push()'s underflow is caught by the skb_under_panic() bounds check before any memory is written, so the impact is limited rather than High.\nA:H - packet_rcv()/tpacket_rcv() computes a ~4-billion-byte skb_push() length from the unset mac_header, driving skb->data below skb->head and hitting skb_under_panic() → BUG() from NAPI/softirq context — a fatal exception in interrupt and a full kernel panic. A single crafted frame takes the machine down and can be replayed at will against every affected host." } ] } ], "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/idpf/idpf_txrx.c" ], "versions": [ { "version": "3a8845af66edb340ba9210bb8a0da040c7d6e590", "lessThan": "b4d28f7fa4dd531cf503a4fe1ca7008960cc5832", "status": "affected", "versionType": "git" }, { "version": "3a8845af66edb340ba9210bb8a0da040c7d6e590", "lessThan": "dd19e827d63ac60debf117676d1126bff884bdb8", "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/idpf/idpf_txrx.c" ], "versions": [ { "version": "6.7", "status": "affected" }, { "version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver" }, { "version": "6.8.5", "lessThanOrEqual": "6.8.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9", "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": "6.7", "versionEndExcluding": "6.8.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.9" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/b4d28f7fa4dd531cf503a4fe1ca7008960cc5832" }, { "url": "https://git.kernel.org/stable/c/dd19e827d63ac60debf117676d1126bff884bdb8" } ], "title": "idpf: fix kernel panic on unknown packet types", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2024-35889", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-05-23T19:38:07.128474Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:34:30.127Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-02T03:21:48.615Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/b4d28f7fa4dd531cf503a4fe1ca7008960cc5832", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/dd19e827d63ac60debf117676d1126bff884bdb8", "tags": [ "x_transferred" ] } ] } ] } }