143 lines
7.1 KiB
JSON
143 lines
7.1 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-2026-68292",
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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": "2026-07-30T09:28:09.380Z",
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"datePublished": "2026-08-10T12:02:25.414Z",
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"dateUpdated": "2026-08-17T05:02:28.011Z"
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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": "2026-08-17T05:02:28.011Z"
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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\nice: prevent tstamp ring allocation for non-PF VSI types\n\nThe pf->txtime_txqs bitmap tracks which Tx queues have ETF (Earliest\nTxTime First) offload enabled. This bitmap is indexed by queue number\nand is set by ice_offload_txtime(), which only operates on PF VSI\nqueues.\n\nHowever, ice_is_txtime_ena() does not check the VSI type before\nconsulting the bitmap. When ETF offload is enabled on PF Tx queue 0,\nbit 0 is set in pf->txtime_txqs. During a subsequent PCI reset\nrebuild, the CTRL VSI's Tx queue 0 is reconfigured and\nice_is_txtime_ena() is called for that ring. Since it only checks\npf->txtime_txqs by queue index without distinguishing VSI type, it\nfinds bit 0 set and returns true, matching the PF VSI's ETF queue,\nnot the CTRL VSI's. This causes ice_vsi_cfg_txq() to spuriously\nallocate a tstamp_ring for the CTRL VSI ring.\n\nSince CTRL VSI rings have no associated netdev, ice_clean_tx_ring()\ntakes an early return at the !netdev check before reaching\nice_free_tx_tstamp_ring(), leaking the allocation. Each PCI reset\nleaks one 64-byte tstamp_ring.\n\nFix this by restricting ice_is_txtime_ena() to return true only for\nPF VSI rings, since txtime_txqs is only meaningful for PF VSI queues."
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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/ice/ice.h"
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],
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"versions": [
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{
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"version": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
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"lessThan": "684d4d0bda95a3fb21b3e29ff0f668f657707b54",
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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": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
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"lessThan": "d0a21604c6abfa4956f3a511a1de174cec77a812",
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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": "ccde82e909467abdf098a8ee6f63e1ecf9a47ce5",
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"lessThan": "144539bbfd3cea1ab0fb6f5216d6004c1f4f029b",
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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/ice/ice.h"
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],
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"versions": [
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{
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"version": "6.18",
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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": "6.18",
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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": "6.18.42",
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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": "7.1.6",
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"lessThanOrEqual": "7.1.*",
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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",
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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": "6.18",
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"versionEndExcluding": "6.18.42"
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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": "6.18",
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"versionEndExcluding": "7.1.6"
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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": "6.18",
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"versionEndExcluding": "7.2"
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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/684d4d0bda95a3fb21b3e29ff0f668f657707b54"
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},
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{
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"url": "https://git.kernel.org/stable/c/d0a21604c6abfa4956f3a511a1de174cec77a812"
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},
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{
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"url": "https://git.kernel.org/stable/c/144539bbfd3cea1ab0fb6f5216d6004c1f4f029b"
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}
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],
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"title": "ice: prevent tstamp ring allocation for non-PF VSI types",
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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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} |