{"id":"CVE-2024-26861","revision":"da2959bc5d6e4c43b897bd3f0258f4cc","records":[{"revision":"da2959bc5d6e4c43b897bd3f0258f4cc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-26861","aliases":[],"title":"wireguard: receive: annotate data-race around receiving_counter.counter","description":"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     ...","state":0,"publishedAt":"2024-04-17T10:27:24.98+00:00","modifiedAt":"2026-10-15T00:38:52.595+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireguard/receive.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"a9e90d9931f3a474f04bab782ccd9d77904941e9\",\n                            \"lessThan\": \"f87884e0dffd61b47e58bc6e1e2f6843c212b0cc\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a9e90d9931f3a474f04bab782ccd9d77904941e9\",\n                            \"lessThan\": \"d691be84ab898cf136a35176eaf2f8fc116563f0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a9e90d9931f3a474f04bab782ccd9d77904941e9\",\n                            \"lessThan\": \"45a83b220c83e3c326513269afbf69ae6fc65cce\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a9e90d9931f3a474f04bab782ccd9d77904941e9\",\n                            \"lessThan\": \"78739d72f16b2d7d549f713f1dfebd678d32484b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a9e90d9931f3a474f04bab782ccd9d77904941e9\",\n                            \"lessThan\": \"3f94da807fe1668b9830f0eefbbf7e887b0a7bc6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a9e90d9931f3a474f04bab782ccd9d77904941e9\",\n                            \"lessThan\": \"fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a9e90d9931f3a474f04bab782ccd9d77904941e9\",\n                            \"lessThan\": \"bba045dc4d996d03dce6fe45726e78a1a1f6d4c3\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a7939808afdc57ecaeb72d049e2985321a1e44e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"5.6.16\",\n                            \"lessThan\": \"5.7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireguard/receive.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.214\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.153\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.83\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.23\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.7.11\",\n                            \"lessThanOrEqual\": \"6.7.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.8.2\",\n                            \"lessThanOrEqual\": \"6.8.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.9\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/f87884e0dffd61b47e58bc6e1e2f6843c212b0cc","https://git.kernel.org/stable/c/d691be84ab898cf136a35176eaf2f8fc116563f0","https://git.kernel.org/stable/c/45a83b220c83e3c326513269afbf69ae6fc65cce","https://git.kernel.org/stable/c/78739d72f16b2d7d549f713f1dfebd678d32484b","https://git.kernel.org/stable/c/3f94da807fe1668b9830f0eefbbf7e887b0a7bc6","https://git.kernel.org/stable/c/fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed","https://git.kernel.org/stable/c/bba045dc4d996d03dce6fe45726e78a1a1f6d4c3"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-26861","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-26861","identifiers":["CVE-2024-26861"]},"retained":false,"historicalAffected":[]}],"coverage":[]}