176 lines
8.5 KiB
JSON
176 lines
8.5 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-2026-90086",
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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": "2026-09-11T19:38:34.785Z",
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"datePublished": "2026-09-17T16:06:02.212Z",
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"dateUpdated": "2026-10-21T12:49:45.759Z"
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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": "2026-10-21T12:49:45.759Z"
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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\nxsk: honor XDP_TX_METADATA in zero-copy path\n\nThe zero-copy path reads TX metadata whenever the UMEM has metadata space,\neven if the descriptor does not set XDP_TX_METADATA. Pass descriptor\noptions through the metadata helpers and ignore metadata unless the option\nis set.\n\nThis does not fix the existing per-WQE metadata handling for mlx5 MPWQEs.\nOnly the descriptor that starts a session passes through\nxsk_tx_metadata_request() and configures offload state shared by the batch.\nMetadata on descriptors joining an open session is therefore not validated\nand does not configure its requested offloads. In addition, a non-NULL\nmetadata pointer from such a descriptor is treated as a timestamp\ncompletion request even when XDP_TXMD_FLAGS_TIMESTAMP is not set, so its\nmetadata union can be overwritten with an unrequested timestamp. Fixing\nmixed metadata states within one MPWQE requires a separate change."
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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/igc/igc_main.c",
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"drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c",
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"drivers/net/ethernet/stmicro/stmmac/stmmac_main.c",
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"include/net/libeth/xsk.h",
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"include/net/xdp_sock_drv.h",
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"include/net/xsk_buff_pool.h",
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"net/xdp/xsk_buff_pool.c"
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],
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"versions": [
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{
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"version": "48eb03dd26304c24f03bdbb9382e89c8564e71df",
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"lessThan": "8ba0d143e471c85f8a116707c0b42bf046b0a7b3",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "48eb03dd26304c24f03bdbb9382e89c8564e71df",
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"lessThan": "53a5b262d706b572840cbe8feae392538077ee19",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "48eb03dd26304c24f03bdbb9382e89c8564e71df",
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"lessThan": "bf9387488d6394845076928c6ca5315ce5d84f54",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "48eb03dd26304c24f03bdbb9382e89c8564e71df",
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"lessThan": "a6e4b9a6deb9362ef7a0706c70d674e92fe1411a",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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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/igc/igc_main.c",
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"drivers/net/ethernet/mellanox/mlx5/core/en/xsk/tx.c",
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"drivers/net/ethernet/stmicro/stmmac/stmmac_main.c",
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"include/net/libeth/xsk.h",
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"include/net/xdp_sock_drv.h",
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"include/net/xsk_buff_pool.h",
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"net/xdp/xsk_buff_pool.c"
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],
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"versions": [
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{
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"version": "6.8",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.8",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.114",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.52",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.2.6",
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"lessThanOrEqual": "7.2.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.3",
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"lessThanOrEqual": "*",
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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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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.12.114"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "6.18.52"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "7.2.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.8",
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"versionEndExcluding": "7.3"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/8ba0d143e471c85f8a116707c0b42bf046b0a7b3"
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},
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{
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"url": "https://git.kernel.org/stable/c/53a5b262d706b572840cbe8feae392538077ee19"
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},
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{
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"url": "https://git.kernel.org/stable/c/bf9387488d6394845076928c6ca5315ce5d84f54"
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},
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{
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"url": "https://git.kernel.org/stable/c/a6e4b9a6deb9362ef7a0706c70d674e92fe1411a"
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}
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],
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"title": "xsk: honor XDP_TX_METADATA in zero-copy path",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |