{"api_version":"1","generated_at":"2026-08-22T21:53:00+00:00","cve":"CVE-2026-74706","urls":{"html":"https://cve.report/CVE-2026-74706","api":"https://cve.report/api/cve/CVE-2026-74706.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74706","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74706"},"summary":{"title":"bnge: Fix NULL pointer dereference in aux device release","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnge: Fix NULL pointer dereference in aux device release\n\nIf allocation of auxr_dev fails during auxiliary device setup, the error\npath calls auxiliary_device_uninit(), which eventually invokes\nbnge_aux_dev_release().\n\nThe release callback unconditionally dereferences aux_priv->auxr_dev->pdev\nto retrieve the parent bnge_dev. Since auxr_dev has not yet been allocated\non this failure path, the dereference results in a NULL pointer exception\n\nRetrieve the parent bnge_dev from the auxiliary device's parent instead of\nauxr_dev, and free auxr_dev only when it was successfully allocated. This\nallows the release callback to correctly clean up partially initialized\nauxiliary devices.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:45","updated_at":"2026-08-22 16:16:45"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/83ef2f3cab7fe6dd9155cd598dc64be524d963a9","name":"https://git.kernel.org/stable/c/83ef2f3cab7fe6dd9155cd598dc64be524d963a9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1cb4298810e27e037d3ca07286ecbb97e89ba58d","name":"https://git.kernel.org/stable/c/1cb4298810e27e037d3ca07286ecbb97e89ba58d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74706","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74706","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 83ef2f3cab7fe6dd9155cd598dc64be524d963a9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554 1cb4298810e27e037d3ca07286ecbb97e89ba58d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * 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":["drivers/net/ethernet/broadcom/bnge/bnge_auxr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"83ef2f3cab7fe6dd9155cd598dc64be524d963a9","status":"affected","version":"8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554","versionType":"git"},{"lessThan":"1cb4298810e27e037d3ca07286ecbb97e89ba58d","status":"affected","version":"8ac050ec3b1c0dcb5e89cf86fe2ebe0afcc73554","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/broadcom/bnge/bnge_auxr.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.19"},{"lessThan":"6.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"6.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnge: Fix NULL pointer dereference in aux device release\n\nIf allocation of auxr_dev fails during auxiliary device setup, the error\npath calls auxiliary_device_uninit(), which eventually invokes\nbnge_aux_dev_release().\n\nThe release callback unconditionally dereferences aux_priv->auxr_dev->pdev\nto retrieve the parent bnge_dev. Since auxr_dev has not yet been allocated\non this failure path, the dereference results in a NULL pointer exception\n\nRetrieve the parent bnge_dev from the auxiliary device's parent instead of\nauxr_dev, and free auxr_dev only when it was successfully allocated. This\nallows the release callback to correctly clean up partially initialized\nauxiliary devices."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:33:04.723Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/83ef2f3cab7fe6dd9155cd598dc64be524d963a9"},{"url":"https://git.kernel.org/stable/c/1cb4298810e27e037d3ca07286ecbb97e89ba58d"}],"title":"bnge: Fix NULL pointer dereference in aux device release","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74706","datePublished":"2026-08-22T15:33:04.723Z","dateReserved":"2026-08-15T05:44:03.927Z","dateUpdated":"2026-08-22T15:33:04.723Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:45","lastModifiedDate":"2026-08-22 16:16:45","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74706","Ordinal":"1","Title":"bnge: Fix NULL pointer dereference in aux device release","CVE":"CVE-2026-74706","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74706","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnge: Fix NULL pointer dereference in aux device release\n\nIf allocation of auxr_dev fails during auxiliary device setup, the error\npath calls auxiliary_device_uninit(), which eventually invokes\nbnge_aux_dev_release().\n\nThe release callback unconditionally dereferences aux_priv->auxr_dev->pdev\nto retrieve the parent bnge_dev. Since auxr_dev has not yet been allocated\non this failure path, the dereference results in a NULL pointer exception\n\nRetrieve the parent bnge_dev from the auxiliary device's parent instead of\nauxr_dev, and free auxr_dev only when it was successfully allocated. This\nallows the release callback to correctly clean up partially initialized\nauxiliary devices.","Type":"Description","Title":"bnge: Fix NULL pointer dereference in aux device release"}]}}}