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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 ..."}, {"lang": "es", "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: wireguard: recibir: anotar carrera de datos alrededor de recibir_counter.counter Syzkaller con KCSAN identific\u00f3 un problema de carrera de datos al acceder al par de claves->receiving_counter.counter. Utilice las anotaciones READ_ONCE() y WRITE_ONCE() para marcar la carrera de datos como intencional. ERROR: KCSAN: carrera de datos en wg_packet_decrypt_worker/wg_packet_rx_poll escribir en 0xffff888107765888 de 8 bytes por interrupci\u00f3n en la CPU 0: counter_validate drivers/net/wireguard/receive.c:321 [en l\u00ednea] wg_packet_rx_poll+0x3ac/0xf00 .c:461 __napi_poll+0x60/0x3b0 net/core/dev.c:6536 napi_poll net/core/dev.c:6605 [en l\u00ednea] net_rx_action+0x32b/0x750 net/core/dev.c:6738 __do_softirq+0xc4/0x279 kernel/softirq.c:553 do_softirq+0x5e/0x90 kernel/softirq.c:454 __local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [en l\u00ednea] _raw_spin_unlock_bh+0x36/0x 40 granos /locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [en l\u00ednea] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [en l\u00ednea] wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499 Process_one_work kernel/workqueue.c:2633 [en l\u00ednea] ... le\u00eddo en 0xffff888107765888 de 8 bytes por tarea 3196 en la CPU 1: decrypt_packet drivers/net/wireguard/receive.c:252 [en l\u00ednea] wg_packet_decrypt_worker+0x220/0x700 drivers/net /wireguard/receive.c:501 Process_one_work kernel/workqueue.c:2633 [en l\u00ednea] Process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706 Workers_thread+0x525/0x730 kernel/workqueue.c:2787 ..."}], "id": "CVE-2024-26861", "lastModified": "2026-05-12T12:16:21.753", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 4.7, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.0, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2024-04-17T11:15:08.997", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f94da807fe1668b9830f0eefbbf7e887b0a7bc6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/45a83b220c83e3c326513269afbf69ae6fc65cce"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/78739d72f16b2d7d549f713f1dfebd678d32484b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bba045dc4d996d03dce6fe45726e78a1a1f6d4c3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d691be84ab898cf136a35176eaf2f8fc116563f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f87884e0dffd61b47e58bc6e1e2f6843c212b0cc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/3f94da807fe1668b9830f0eefbbf7e887b0a7bc6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/45a83b220c83e3c326513269afbf69ae6fc65cce"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/78739d72f16b2d7d549f713f1dfebd678d32484b"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bba045dc4d996d03dce6fe45726e78a1a1f6d4c3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/d691be84ab898cf136a35176eaf2f8fc116563f0"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f87884e0dffd61b47e58bc6e1e2f6843c212b0cc"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List"], "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-362"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"affected_release": [{"advisory": "RHSA-2024:9315", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}, {"advisory": "RHSA-2024:9315", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "kernel-0:5.14.0-503.11.1.el9_5", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2024-11-12T00:00:00Z"}], "bugzilla": {"description": "kernel: wireguard: receive: annotate data-race around receiving_counter.counter", "id": "2275729", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2275729"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.1", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-362", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nwireguard: receive: annotate data-race around receiving_counter.counter\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.\nBUG: KCSAN: data-race in wg_packet_decrypt_worker / wg_packet_rx_poll\nwrite to 0xffff888107765888 of 8 bytes by interrupt on cpu 0:\ncounter_validate drivers/net/wireguard/receive.c:321 [inline]\nwg_packet_rx_poll+0x3ac/0xf00 drivers/net/wireguard/receive.c:461\n__napi_poll+0x60/0x3b0 net/core/dev.c:6536\nnapi_poll net/core/dev.c:6605 [inline]\nnet_rx_action+0x32b/0x750 net/core/dev.c:6738\n__do_softirq+0xc4/0x279 kernel/softirq.c:553\ndo_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\nspin_unlock_bh include/linux/spinlock.h:396 [inline]\nptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]\nwg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499\nprocess_one_work kernel/workqueue.c:2633 [inline]\n...\nread to 0xffff888107765888 of 8 bytes by task 3196 on cpu 1:\ndecrypt_packet drivers/net/wireguard/receive.c:252 [inline]\nwg_packet_decrypt_worker+0x220/0x700 drivers/net/wireguard/receive.c:501\nprocess_one_work kernel/workqueue.c:2633 [inline]\nprocess_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706\nworker_thread+0x525/0x730 kernel/workqueue.c:2787\n..."], "name": "CVE-2024-26861", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-04-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-26861\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-26861\nhttps://lore.kernel.org/linux-cve-announce/2024041736-CVE-2024-26861-3a78@gregkh/T"], "threat_severity": "Low"}

{}