{"api_version":"1","generated_at":"2026-10-21T13:33:09+00:00","cve":"CVE-2026-98705","urls":{"html":"https://cve.report/CVE-2026-98705","api":"https://cve.report/api/cve/CVE-2026-98705.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-98705","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-98705"},"summary":{"title":"wifi: mac80211: account proxy paths against the mesh path limit","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: account proxy paths against the mesh path limit\n\nProxy-path churn can drive the interface path counter negative and let\nlater mesh path additions exceed MESH_MAX_MPATHS.\n\nmesh_path_free_rcu() decrements the interface mpaths counter for entries\nfrom both the mesh and proxy path tables, but mpp_path_add() never\nreserves a slot in that counter. Removing or expiring a proxy path\ntherefore returns a slot that was never charged.\n\nmesh_path_add() uses the same counter to enforce MESH_MAX_MPATHS, so once\nit falls below the number of installed paths the limit no longer holds.\n\nReserve the shared quota before allocating a proxy path and release it on\nevery unsuccessful addition. Mesh and proxy paths now share one\n1024-entry budget, so mpp_path_add() can return -ENOSPC at that limit.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-10-18 16:17:24","updated_at":"2026-10-19 10:19:34"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/df072db65fdaa34ad15e1d66fc06a53e3e97f778","name":"https://git.kernel.org/stable/c/df072db65fdaa34ad15e1d66fc06a53e3e97f778","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3b75831ceee76d32bb8e7ddd241904f92f9b5407","name":"https://git.kernel.org/stable/c/3b75831ceee76d32bb8e7ddd241904f92f9b5407","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5a32409ed34a1868830899a5d2437f0b3bf3532c","name":"https://git.kernel.org/stable/c/5a32409ed34a1868830899a5d2437f0b3bf3532c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a5f35d4b112af1415ff06bd501c8cc26cc08aa8b","name":"https://git.kernel.org/stable/c/a5f35d4b112af1415ff06bd501c8cc26cc08aa8b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98705","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98705","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ece1a2e7e86078c8379937b546e32cb7f25fcb6c df072db65fdaa34ad15e1d66fc06a53e3e97f778 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ece1a2e7e86078c8379937b546e32cb7f25fcb6c 3b75831ceee76d32bb8e7ddd241904f92f9b5407 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ece1a2e7e86078c8379937b546e32cb7f25fcb6c 5a32409ed34a1868830899a5d2437f0b3bf3532c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ece1a2e7e86078c8379937b546e32cb7f25fcb6c a5f35d4b112af1415ff06bd501c8cc26cc08aa8b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.113 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.56 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.10 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/mesh_pathtbl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"df072db65fdaa34ad15e1d66fc06a53e3e97f778","status":"affected","version":"ece1a2e7e86078c8379937b546e32cb7f25fcb6c","versionType":"git"},{"lessThan":"3b75831ceee76d32bb8e7ddd241904f92f9b5407","status":"affected","version":"ece1a2e7e86078c8379937b546e32cb7f25fcb6c","versionType":"git"},{"lessThan":"5a32409ed34a1868830899a5d2437f0b3bf3532c","status":"affected","version":"ece1a2e7e86078c8379937b546e32cb7f25fcb6c","versionType":"git"},{"lessThan":"a5f35d4b112af1415ff06bd501c8cc26cc08aa8b","status":"affected","version":"ece1a2e7e86078c8379937b546e32cb7f25fcb6c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/mesh_pathtbl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.2"},{"lessThan":"3.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.113","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.56","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.113","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.56","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.10","versionStartIncluding":"3.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3","versionStartIncluding":"3.2","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: account proxy paths against the mesh path limit\n\nProxy-path churn can drive the interface path counter negative and let\nlater mesh path additions exceed MESH_MAX_MPATHS.\n\nmesh_path_free_rcu() decrements the interface mpaths counter for entries\nfrom both the mesh and proxy path tables, but mpp_path_add() never\nreserves a slot in that counter. Removing or expiring a proxy path\ntherefore returns a slot that was never charged.\n\nmesh_path_add() uses the same counter to enforce MESH_MAX_MPATHS, so once\nit falls below the number of installed paths the limit no longer holds.\n\nReserve the shared quota before allocating a proxy path and release it on\nevery unsuccessful addition. Mesh and proxy paths now share one\n1024-entry budget, so mpp_path_add() can return -ENOSPC at that limit."}],"providerMetadata":{"dateUpdated":"2026-10-19T09:24:15.531Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/df072db65fdaa34ad15e1d66fc06a53e3e97f778"},{"url":"https://git.kernel.org/stable/c/3b75831ceee76d32bb8e7ddd241904f92f9b5407"},{"url":"https://git.kernel.org/stable/c/5a32409ed34a1868830899a5d2437f0b3bf3532c"},{"url":"https://git.kernel.org/stable/c/a5f35d4b112af1415ff06bd501c8cc26cc08aa8b"}],"title":"wifi: mac80211: account proxy paths against the mesh path limit","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-98705","datePublished":"2026-10-18T15:46:35.520Z","dateReserved":"2026-09-25T10:25:14.365Z","dateUpdated":"2026-10-19T09:24:15.531Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-18 16:17:24","lastModifiedDate":"2026-10-19 10:19:34","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"98705","Ordinal":"1","Title":"wifi: mac80211: account proxy paths against the mesh path limit","CVE":"CVE-2026-98705","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"98705","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: account proxy paths against the mesh path limit\n\nProxy-path churn can drive the interface path counter negative and let\nlater mesh path additions exceed MESH_MAX_MPATHS.\n\nmesh_path_free_rcu() decrements the interface mpaths counter for entries\nfrom both the mesh and proxy path tables, but mpp_path_add() never\nreserves a slot in that counter. Removing or expiring a proxy path\ntherefore returns a slot that was never charged.\n\nmesh_path_add() uses the same counter to enforce MESH_MAX_MPATHS, so once\nit falls below the number of installed paths the limit no longer holds.\n\nReserve the shared quota before allocating a proxy path and release it on\nevery unsuccessful addition. Mesh and proxy paths now share one\n1024-entry budget, so mpp_path_add() can return -ENOSPC at that limit.","Type":"Description","Title":"wifi: mac80211: account proxy paths against the mesh path limit"}]}}}