206 lines
9.9 KiB
JSON
206 lines
9.9 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-2026-68286",
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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": "2026-07-30T09:28:09.379Z",
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"datePublished": "2026-08-10T12:02:19.077Z",
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"dateUpdated": "2026-10-03T10:55:41.847Z"
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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": "2026-10-03T10:55:41.847Z"
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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\ndrop_monitor: perform u64_stats updates under IRQ-disabled section\n\nIn net_dm_packet_trace_kfree_skb_hit() and net_dm_hw_trap_packet_probe(),\nu64_stats_update_begin() / u64_stats_inc() / u64_stats_update_end() were\ncalled after spin_unlock_irqrestore(&...drop_queue.lock, flags), when local\nIRQs had already been re-enabled.\n\nTracepoint probes can execute in IRQ or softirq context. On 32-bit\narchitectures, u64_stats_update_begin() disables preemption but not interrupts,\nrelying on seqcount writes. If a nested interrupt occurs on the same CPU during\nthe 64-bit stats update, the reentrant seqcount update can corrupt the\nseqcount state or stats value.\n\nFix this by performing the 64-bit per-CPU stats update before releasing\ndrop_queue.lock via spin_unlock_irqrestore(), ensuring local interrupts remain\ndisabled during the u64_stats update."
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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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"net/core/drop_monitor.c"
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],
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"versions": [
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{
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"version": "e9feb58020f952f7d9de785ede9a7d54ab1eda5c",
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"lessThan": "dd8472526a04f2185afd792b8041a912a7d75d85",
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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": "e9feb58020f952f7d9de785ede9a7d54ab1eda5c",
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"lessThan": "3454c729ee8aa682ec871f1b174b047f731933ae",
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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": "e9feb58020f952f7d9de785ede9a7d54ab1eda5c",
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"lessThan": "be9b121894d6ad44f0011f79543a2e3245979497",
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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": "e9feb58020f952f7d9de785ede9a7d54ab1eda5c",
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"lessThan": "7d857cf5f0120bb0e020fa20b03bd21b9d3e0c04",
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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": "e9feb58020f952f7d9de785ede9a7d54ab1eda5c",
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"lessThan": "d5e2cd2bc8ae36617346b3a54ee9da61d866bf92",
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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": "e9feb58020f952f7d9de785ede9a7d54ab1eda5c",
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"lessThan": "fd098a23bf8fda7eae48db9b06e7c34fc4d228fa",
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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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"net/core/drop_monitor.c"
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],
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"versions": [
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{
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"version": "5.4",
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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": "5.4",
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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": "6.1.189",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.158",
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"lessThanOrEqual": "6.6.*",
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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": "6.12.111",
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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": "6.18.53",
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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": "5.4",
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"versionEndExcluding": "6.1.189"
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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": "5.4",
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"versionEndExcluding": "6.6.158"
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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": "5.4",
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"versionEndExcluding": "6.12.111"
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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": "5.4",
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"versionEndExcluding": "6.18.53"
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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": "5.4",
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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": "5.4",
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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/dd8472526a04f2185afd792b8041a912a7d75d85"
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},
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{
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"url": "https://git.kernel.org/stable/c/3454c729ee8aa682ec871f1b174b047f731933ae"
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},
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{
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"url": "https://git.kernel.org/stable/c/be9b121894d6ad44f0011f79543a2e3245979497"
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},
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{
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"url": "https://git.kernel.org/stable/c/7d857cf5f0120bb0e020fa20b03bd21b9d3e0c04"
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},
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{
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"url": "https://git.kernel.org/stable/c/d5e2cd2bc8ae36617346b3a54ee9da61d866bf92"
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},
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{
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"url": "https://git.kernel.org/stable/c/fd098a23bf8fda7eae48db9b06e7c34fc4d228fa"
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}
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],
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"title": "drop_monitor: perform u64_stats updates under IRQ-disabled section",
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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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} |