243 lines
13 KiB
JSON
243 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49725",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-02-26T02:21:30.447Z",
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"datePublished": "2025-02-26T02:24:37.349Z",
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"dateUpdated": "2026-08-05T08:56:07.991Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T08:56:07.991Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix call trace in setup_tx_descriptors\n\nAfter PF reset and ethtool -t there was call trace in dmesg\nsometimes leading to panic. When there was some time, around 5\nseconds, between reset and test there were no errors.\n\nProblem was that pf reset calls i40e_vsi_close in prep_for_reset\nand ethtool -t calls i40e_vsi_close in diag_test. If there was not\nenough time between those commands the second i40e_vsi_close starts\nbefore previous i40e_vsi_close was done which leads to crash.\n\nAdd check to diag_test if pf is in reset and don't start offline\ntests if it is true.\nAdd netif_info(\"testing failed\") into unhappy path of i40e_diag_test()"
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The bug is reached only through the local SIOCETHTOOL ETHTOOL_TEST ioctl path (__dev_ethtool → ethtool_self_test → i40e_diag_test → i40e_close/i40e_do_reset), not via remote packet processing or an adjacent-link protocol.\nAC:L - An attacker who can drive PF reset and immediately run ethtool -t controls both sides of the race; the multi-second RESET_RECOVERY_PENDING window (prep_for_reset without rtnl on the async service-task path, then rebuild) is large enough to hit reliably by issuing both operations back-to-back.\nPR:L - ETHTOOL_TEST requires ns_capable(net->user_ns, CAP_NET_ADMIN), which is available in a user-namespace–owned netns with a delegated i40e PF, matching prior Intel ethernet/ethtool scoring (e.g. ice AF_XDP CAP_NET_ADMIN paths).\nUI:N - The attacker issues the ethtool self-test (and the concurrent reset trigger) from their own process; no separate victim action such as mounting media or opening a file is required.\nS:U - The race corrupts host-kernel i40e ring/VSI state within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Overlapping i40e_vsi_close calls free TX/RX resources outside the __I40E_VSI_DOWN bit (desc check then kfree(tx_bi)/dma_free_coherent with no serialization), yielding a heap double-free/UAF that can be leveraged for high-impact kernel memory disclosure.\nI:H - The same unsynchronized double-free/UAF of tx_bi and DMA descriptor memory is exploitable heap corruption that, per UAF guidance, enables write and control-flow hijack primitives beyond a pure crash.\nA:H - The race produces kernel call traces and panics (including WARN_ON(tx_ring->tx_bi) in i40e_setup_tx_descriptors and faults from the double-free/UAF), which is a full availability impact."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/intel/i40e/i40e_ethtool.c"
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],
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"status": "affected",
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{
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"programFiles": [
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"drivers/net/ethernet/intel/i40e/i40e_ethtool.c"
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],
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"versions": [
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{
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"version": "4.2",
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"status": "affected"
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},
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{
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"version": "0",
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},
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{
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"version": "4.14.285",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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},
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{
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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},
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{
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"version": "5.4.200",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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},
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{
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"status": "unaffected",
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},
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"version": "5.15.49",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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},
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{
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"version": "5.18.6",
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"lessThanOrEqual": "5.18.*",
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"status": "unaffected",
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},
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"version": "5.19",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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],
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"title": "i40e: Fix call trace in setup_tx_descriptors",
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