{
    "dataType": "CVE_RECORD",
    "cveMetadata": {
        "cveId": "CVE-2024-26861",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-02-19T14:20:24.184Z",
        "datePublished": "2024-04-17T10:27:24.980Z",
        "dateUpdated": "2026-05-23T15:39:12.332Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T15:39:12.332Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwireguard: receive: annotate data-race around receiving_counter.counter\n\nSyzkaller with KCSAN identified a data-race issue when accessing\nkeypair->receiving_counter.counter. Use READ_ONCE() and WRITE_ONCE()\nannotations to mark the data race as intentional.\n\n    BUG: KCSAN: data-race in wg_packet_decrypt_worker / wg_packet_rx_poll\n\n    write to 0xffff888107765888 of 8 bytes by interrupt on cpu 0:\n     counter_validate drivers/net/wireguard/receive.c:321 [inline]\n     wg_packet_rx_poll+0x3ac/0xf00 drivers/net/wireguard/receive.c:461\n     __napi_poll+0x60/0x3b0 net/core/dev.c:6536\n     napi_poll net/core/dev.c:6605 [inline]\n     net_rx_action+0x32b/0x750 net/core/dev.c:6738\n     __do_softirq+0xc4/0x279 kernel/softirq.c:553\n     do_softirq+0x5e/0x90 kernel/softirq.c:454\n     __local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381\n     __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\n     _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210\n     spin_unlock_bh include/linux/spinlock.h:396 [inline]\n     ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]\n     wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499\n     process_one_work kernel/workqueue.c:2633 [inline]\n     ...\n\n    read to 0xffff888107765888 of 8 bytes by task 3196 on cpu 1:\n     decrypt_packet drivers/net/wireguard/receive.c:252 [inline]\n     wg_packet_decrypt_worker+0x220/0x700 drivers/net/wireguard/receive.c:501\n     process_one_work kernel/workqueue.c:2633 [inline]\n     process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706\n     worker_thread+0x525/0x730 kernel/workqueue.c:2787\n     ..."
                }
            ],
            "affected": [
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireguard/receive.c"
                    ],
                    "versions": [
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                            "lessThan": "f87884e0dffd61b47e58bc6e1e2f6843c212b0cc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
                            "lessThan": "d691be84ab898cf136a35176eaf2f8fc116563f0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
                            "lessThan": "45a83b220c83e3c326513269afbf69ae6fc65cce",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
                            "lessThan": "78739d72f16b2d7d549f713f1dfebd678d32484b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
                            "lessThan": "3f94da807fe1668b9830f0eefbbf7e887b0a7bc6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
                            "lessThan": "fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
                            "lessThan": "bba045dc4d996d03dce6fe45726e78a1a1f6d4c3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4a7939808afdc57ecaeb72d049e2985321a1e44e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.6.16",
                            "lessThan": "5.7",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/wireguard/receive.c"
                    ],
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                        {
                            "version": "5.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.214",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.153",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.83",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.23",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.7.11",
                            "lessThanOrEqual": "6.7.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.8.2",
                            "lessThanOrEqual": "6.8.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.9",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
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            "cpeApplicability": [
                {
                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "5.10.214"
                                },
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "5.15.153"
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                                {
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                                    "versionEndExcluding": "6.1.83"
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                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.6.23"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.7.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.8.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.7",
                                    "versionEndExcluding": "6.9"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.6.16"
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                    "url": "https://git.kernel.org/stable/c/f87884e0dffd61b47e58bc6e1e2f6843c212b0cc"
                },
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                    "url": "https://git.kernel.org/stable/c/d691be84ab898cf136a35176eaf2f8fc116563f0"
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                {
                    "url": "https://git.kernel.org/stable/c/bba045dc4d996d03dce6fe45726e78a1a1f6d4c3"
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            "title": "wireguard: receive: annotate data-race around receiving_counter.counter",
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