{"id":"CVE-2026-72127","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-72127","generatedAt":"2026-10-27T23:10:15.252Z","title":"In the Linux kernel, the following vulnerability has been resolved: netdev-genl: report NAPI thread PID in the caller's pid namespace netdev_nl_napi_fill_one() reports the NAPI kthread PID in NETDEV_A_NAPI_PID using task_pid_nr(), which returns the PID…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetdev-genl: report NAPI thread PID in the caller's pid namespace\n\nnetdev_nl_napi_fill_one() reports the NAPI kthread PID in NETDEV_A_NAPI_PID\nusing task_pid_nr(), which returns the PID in the initial pid namespace.\n\nNETDEV_CMD_NAPI_GET does not have GENL_ADMIN_PERM and the netdev genl family\nis netnsok, so a caller in a child pid namespace can issue it. That caller\nthen sees the kthread's global PID, even though the kthread is not visible\nin its pid namespace, where the value should be 0.\n\nTranslate the PID through the caller's pid namespace, the same way commit\n3799c2570982 (\"io_uring/fdinfo: translate SqThread PID through caller's\npid_ns\") did for the io_uring SQPOLL thread. The doit and dumpit paths both\nrun synchronously in the caller's context, so task_active_pid_ns(current) is\nthe caller's pid namespace.","published":"2026-08-15T06:21:30.000Z","lastModified":"2026-08-17T06:18:12.000Z","status":"Received","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":null,"cwe":[],"affected":[],"epss":{"score":0.00209,"percentile":0.10938,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"unknown","text":"Not yet scored. NVD analysis is pending; check back once CVSS and EPSS values are published."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/1f24c0d01db214c9e661915e9972404c96ca73c0","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5e4c8e08ce95730c87d6ada0bdbe1131a3c06393","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fb18095389fe81f140d39585a2624aca9d42227e","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fd750b694f1f9e1ecb8ca19314e4e21edbb15f42","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-72127","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}