{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2024-26861 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-26861 is a medium-severity vulnerability in Debian Debian Linux, published on 17 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2024-26861 and fix it if it is affected.\n\nWhat it is: CVE-2024-26861 is a medium-severity vulnerability in Debian Debian Linux, published on 17 Apr 2024. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2024-26861 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2024-26861/ (Markdown: https://insights.sbomify.com/CVE-2024-26861/index.md)","id":"CVE-2024-26861","markdown":"https://insights.sbomify.com/CVE-2024-26861/index.md","name":"CVE-2024-26861","record":{"aliases":["BELL-CVE-2024-26861","DEBIAN-CVE-2024-26861","GHSA-qhhp-8c9r-qpm8","UBUNTU-CVE-2024-26861"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["other"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel WireGuard","requires_auth":"low_privilege","summary":"A data race in the Linux kernel WireGuard module could lead to undefined behavior, requiring kernel patching to ensure correct counter handling.","user_interaction":"not_required","vuln_class":"race_condition"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":4.7,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"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-\u003ereceiving_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     ...","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"wireguard: receive: annotate data-race around receiving_counter.counter","id":"CVE-2024-26861","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel"],"type":"race_condition","year":"2024"},"n_packages":0,"n_references":7,"next":{"headline":"packet: annotate data-races around ignore_outgoing","id":"CVE-2024-26862"},"packages":[],"prev":{"headline":"dm-integrity: fix a memory leak when rechecking the data","id":"CVE-2024-26860"},"products":["Linux"],"published":"2024-04-17","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A data race in the Linux kernel WireGuard module could lead to undefined behavior, requiring kernel patching to ensure correct counter handling.","url":"https://insights.sbomify.com/CVE-2024-26861/"}