{"api_version":"1","generated_at":"2026-06-27T00:10:58+00:00","cve":"CVE-2026-53323","urls":{"html":"https://cve.report/CVE-2026-53323","api":"https://cve.report/api/cve/CVE-2026-53323.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53323","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53323"},"summary":{"title":"net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops\n\nDSA replaces the conduit (master) device's ethtool_ops with its own\nwrappers that aggregate stats from both the conduit and DSA switch\nports. Taking the lock again inside the DSA wrappers causes a deadlock.\n\nStumbled upon this when booting qemu with fbnic and CONFIG_NET_DSA_LOOP=y\n(which looks like some kind of testing device that auto-populates the ports\nof eth0). `ethtool -i` is enough to deadlock. This means we have basically zero\ncoverage for DSA stuff with real ops locked devs.\n\nRemove the redundant netdev_lock_ops()/netdev_unlock_ops() calls from\nthe DSA conduit ethtool wrappers.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-26 20:17:25","updated_at":"2026-06-26 20:17:25"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/0f99e0c3e19badaf3fdced0d3feba623e59eed41","name":"https://git.kernel.org/stable/c/0f99e0c3e19badaf3fdced0d3feba623e59eed41","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/74d64ae4254e99ef8c8215b057a76edac82c5f99","name":"https://git.kernel.org/stable/c/74d64ae4254e99ef8c8215b057a76edac82c5f99","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/abe91fd045874d21834482adcd7a9693e7377056","name":"https://git.kernel.org/stable/c/abe91fd045874d21834482adcd7a9693e7377056","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53323","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53323","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2bcf4772e45adb00649a4e9cbff14b08a144f9e3 74d64ae4254e99ef8c8215b057a76edac82c5f99 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2bcf4772e45adb00649a4e9cbff14b08a144f9e3 abe91fd045874d21834482adcd7a9693e7377056 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 2bcf4772e45adb00649a4e9cbff14b08a144f9e3 0f99e0c3e19badaf3fdced0d3feba623e59eed41 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.33 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * 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/dsa/conduit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"74d64ae4254e99ef8c8215b057a76edac82c5f99","status":"affected","version":"2bcf4772e45adb00649a4e9cbff14b08a144f9e3","versionType":"git"},{"lessThan":"abe91fd045874d21834482adcd7a9693e7377056","status":"affected","version":"2bcf4772e45adb00649a4e9cbff14b08a144f9e3","versionType":"git"},{"lessThan":"0f99e0c3e19badaf3fdced0d3feba623e59eed41","status":"affected","version":"2bcf4772e45adb00649a4e9cbff14b08a144f9e3","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/dsa/conduit.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.15"},{"lessThan":"6.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"6.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops\n\nDSA replaces the conduit (master) device's ethtool_ops with its own\nwrappers that aggregate stats from both the conduit and DSA switch\nports. Taking the lock again inside the DSA wrappers causes a deadlock.\n\nStumbled upon this when booting qemu with fbnic and CONFIG_NET_DSA_LOOP=y\n(which looks like some kind of testing device that auto-populates the ports\nof eth0). `ethtool -i` is enough to deadlock. This means we have basically zero\ncoverage for DSA stuff with real ops locked devs.\n\nRemove the redundant netdev_lock_ops()/netdev_unlock_ops() calls from\nthe DSA conduit ethtool wrappers."}],"providerMetadata":{"dateUpdated":"2026-06-26T19:41:13.926Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/74d64ae4254e99ef8c8215b057a76edac82c5f99"},{"url":"https://git.kernel.org/stable/c/abe91fd045874d21834482adcd7a9693e7377056"},{"url":"https://git.kernel.org/stable/c/0f99e0c3e19badaf3fdced0d3feba623e59eed41"}],"title":"net: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53323","datePublished":"2026-06-26T19:41:13.926Z","dateReserved":"2026-06-09T07:44:35.398Z","dateUpdated":"2026-06-26T19:41:13.926Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-26 20:17:25","lastModifiedDate":"2026-06-26 20:17:25","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53323","Ordinal":"1","Title":"net: dsa: remove redundant netdev_lock_ops() from conduit ethtoo","CVE":"CVE-2026-53323","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53323","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: remove redundant netdev_lock_ops() from conduit ethtool ops\n\nDSA replaces the conduit (master) device's ethtool_ops with its own\nwrappers that aggregate stats from both the conduit and DSA switch\nports. Taking the lock again inside the DSA wrappers causes a deadlock.\n\nStumbled upon this when booting qemu with fbnic and CONFIG_NET_DSA_LOOP=y\n(which looks like some kind of testing device that auto-populates the ports\nof eth0). `ethtool -i` is enough to deadlock. This means we have basically zero\ncoverage for DSA stuff with real ops locked devs.\n\nRemove the redundant netdev_lock_ops()/netdev_unlock_ops() calls from\nthe DSA conduit ethtool wrappers.","Type":"Description","Title":"net: dsa: remove redundant netdev_lock_ops() from conduit ethtoo"}]}}}