{"id":"CVE-2026-72005","title":"wifi: rt2x00: avoid full teardown before work setup in probe","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rt2x00: avoid full teardown before work setup in probe\n\nrt2x00lib_probe_dev() uses the full rt2x00lib_remove_dev() teardown for\nall probe failures. However, drv_d…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","vendor":"Linux","product":"Linux","affected":["Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 8b58d1f1356df6a7d2de3f55bb665b18b04ffda0","Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 59afe6148927395cf86f9429900e029a48b1d42b","Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 3c0427d719bddb33caf18ff4ffb77cb47de7eb00","Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < eb7474d0253bb2de4793e1d3ce833e8564bbe732","Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 66bd9b1a72de7c2f5141b02d796048aafaed8a49","Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 816559409e340acaa5c9d868291dab30d8c80263","Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 56994852d704535ea354a4627ca667b1b4fa0deb","Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 536fb3d739d75a03cb318c0c6fe799425cfea501","Linux 2.6.39"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-16T15:49:49.454298Z"},"published":"2026-08-15","updated":"2026-10-16","sourceUpdated":"2026-10-16T15:53:15.650Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-72005","references":[{"url":"https://git.kernel.org/stable/c/8b58d1f1356df6a7d2de3f55bb665b18b04ffda0"},{"url":"https://git.kernel.org/stable/c/59afe6148927395cf86f9429900e029a48b1d42b"},{"url":"https://git.kernel.org/stable/c/3c0427d719bddb33caf18ff4ffb77cb47de7eb00"},{"url":"https://git.kernel.org/stable/c/eb7474d0253bb2de4793e1d3ce833e8564bbe732"},{"url":"https://git.kernel.org/stable/c/66bd9b1a72de7c2f5141b02d796048aafaed8a49"},{"url":"https://git.kernel.org/stable/c/816559409e340acaa5c9d868291dab30d8c80263"},{"url":"https://git.kernel.org/stable/c/56994852d704535ea354a4627ca667b1b4fa0deb"},{"url":"https://git.kernel.org/stable/c/536fb3d739d75a03cb318c0c6fe799425cfea501"}],"tags":["cve.org"],"epss":0.00164,"epssPercentile":0.05245,"ingestedAt":"2026-10-16T17:24:46.870Z","slug":"CVE-2026-72005","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rt2x00: avoid full teardown before work setup in probe\n\nrt2x00lib_probe_dev() uses the full rt2x00lib_remove_dev() teardown for\nall probe failures. However, drv_data allocation and workqueue allocation\ncan fail before intf_work, autowakeup_work and sleep_work have been\ninitialized.\n\nDo not enter the full remove path until the probe has reached the point\nwhere those work items are set up. Return directly for drv_data allocation\nfailure, and use a small early cleanup path for workqueue allocation\nfailure.\n\nThis issue was found by our static analysis tool and then confirmed by\nmanual review of rt2x00lib_probe_dev() and rt2x00lib_remove_dev(). The\nearly probe exits should not call a common teardown path that assumes the\nlater work setup has already completed.\n\nA QEMU PoC forced alloc_ordered_workqueue() to fail before the work\ninitializers are reached. The resulting fail path entered\nrt2x00lib_remove_dev(), and DEBUG_OBJECTS reported invalid work drains with\nrt2x00lib_probe_dev() and rt2x00lib_remove_dev() in the stack.\n\n## Affected\n\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 8b58d1f1356df6a7d2de3f55bb665b18b04ffda0`\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 59afe6148927395cf86f9429900e029a48b1d42b`\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 3c0427d719bddb33caf18ff4ffb77cb47de7eb00`\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < eb7474d0253bb2de4793e1d3ce833e8564bbe732`\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 66bd9b1a72de7c2f5141b02d796048aafaed8a49`\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 816559409e340acaa5c9d868291dab30d8c80263`\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 56994852d704535ea354a4627ca667b1b4fa0deb`\n- `Linux >= 0439f5367c8d8bb2ebaca8d7329f51f3148b2fb2 < 536fb3d739d75a03cb318c0c6fe799425cfea501`\n- `Linux 2.6.39`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}