{"api_version":"1","generated_at":"2026-07-05T10:11:58+00:00","cve":"CVE-2026-53337","urls":{"html":"https://cve.report/CVE-2026-53337","api":"https://cve.report/api/cve/CVE-2026-53337.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53337","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53337"},"summary":{"title":"net: bonding: fix NULL pointer dereference in bond_do_ioctl()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bonding: fix NULL pointer dereference in bond_do_ioctl()\n\nIn bond_do_ioctl(), slave_dev is obtained via __dev_get_by_name() which\ncan return NULL if the requested interface name does not exist. However,\nthe subsequent slave_dbg() call is placed before the NULL check:\n\n    slave_dev = __dev_get_by_name(net, ifr->ifr_slave);\n    slave_dbg(bond_dev, slave_dev, \"slave_dev=%p:\\n\", slave_dev); //here\n    if (!slave_dev)\n        return -ENODEV;\n\nThe slave_dbg() macro expands to netdev_dbg(bond_dev, \"(slave %s): \" fmt,\n(slave_dev)->name, ...) which unconditionally dereferences slave_dev->name\nbefore the NULL check is performed. This results in a NULL pointer\ndereference kernel oops when a user calls bonding ioctl (e.g.\nSIOCBONDENSLAVE, SIOCBONDRELEASE, etc.) with a non-existent slave\ninterface name.\n\nThis is reachable from userspace via the bonding ioctl interface with\nCAP_NET_ADMIN capability, making it a potential local denial-of-service\nvector.\n\nFix by moving the slave_dbg() call after the NULL check.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-01 14:16:41","updated_at":"2026-07-01 14:16:41"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/c2cfe290fdb1c32a4f4eb2b8ca3f363b305d21ba","name":"https://git.kernel.org/stable/c/c2cfe290fdb1c32a4f4eb2b8ca3f363b305d21ba","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a629418d463fb50d132a1aa063b0105857311e5f","name":"https://git.kernel.org/stable/c/a629418d463fb50d132a1aa063b0105857311e5f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b0878106ddc486375084145848ff255dedfff46a","name":"https://git.kernel.org/stable/c/b0878106ddc486375084145848ff255dedfff46a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a764b0e8317a863006e05732e1aefe821b9d8c2d","name":"https://git.kernel.org/stable/c/a764b0e8317a863006e05732e1aefe821b9d8c2d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b02b2e3e876c18733b868a29064abd11cdbf8feb","name":"https://git.kernel.org/stable/c/b02b2e3e876c18733b868a29064abd11cdbf8feb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/66693957bacd1c9dae6188a7312d6be69a221f2d","name":"https://git.kernel.org/stable/c/66693957bacd1c9dae6188a7312d6be69a221f2d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1b7558c85493467b2ea20738866b822db6442034","name":"https://git.kernel.org/stable/c/1b7558c85493467b2ea20738866b822db6442034","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bcb8fad90f27300add583a8371db504b766d95c7","name":"https://git.kernel.org/stable/c/bcb8fad90f27300add583a8371db504b766d95c7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53337","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53337","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2a7420df2e01370b40e4cf7b85ab9a885c6d755 1b7558c85493467b2ea20738866b822db6442034 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2a7420df2e01370b40e4cf7b85ab9a885c6d755 b02b2e3e876c18733b868a29064abd11cdbf8feb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2a7420df2e01370b40e4cf7b85ab9a885c6d755 66693957bacd1c9dae6188a7312d6be69a221f2d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected e2a7420df2e01370b40e4cf7b85ab9a885c6d755 a629418d463fb50d132a1aa063b0105857311e5f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.210 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.94 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.36 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 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":{"cve_year":"2026","cve_id":"53337","cve":"CVE-2026-53337","epss":"0.001640000","percentile":"0.059780000","score_date":"2026-07-04","updated_at":"2026-07-05 00:02:27"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/bonding/bond_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1b7558c85493467b2ea20738866b822db6442034","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"},{"lessThan":"b02b2e3e876c18733b868a29064abd11cdbf8feb","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"},{"lessThan":"66693957bacd1c9dae6188a7312d6be69a221f2d","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"},{"lessThan":"a629418d463fb50d132a1aa063b0105857311e5f","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"},{"lessThan":"c2cfe290fdb1c32a4f4eb2b8ca3f363b305d21ba","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"},{"lessThan":"bcb8fad90f27300add583a8371db504b766d95c7","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"},{"lessThan":"b0878106ddc486375084145848ff255dedfff46a","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"},{"lessThan":"a764b0e8317a863006e05732e1aefe821b9d8c2d","status":"affected","version":"e2a7420df2e01370b40e4cf7b85ab9a885c6d755","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/bonding/bond_main.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.3"},{"lessThan":"5.3","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","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":"5.10.259","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.94","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"5.3","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bonding: fix NULL pointer dereference in bond_do_ioctl()\n\nIn bond_do_ioctl(), slave_dev is obtained via __dev_get_by_name() which\ncan return NULL if the requested interface name does not exist. However,\nthe subsequent slave_dbg() call is placed before the NULL check:\n\n    slave_dev = __dev_get_by_name(net, ifr->ifr_slave);\n    slave_dbg(bond_dev, slave_dev, \"slave_dev=%p:\\n\", slave_dev); //here\n    if (!slave_dev)\n        return -ENODEV;\n\nThe slave_dbg() macro expands to netdev_dbg(bond_dev, \"(slave %s): \" fmt,\n(slave_dev)->name, ...) which unconditionally dereferences slave_dev->name\nbefore the NULL check is performed. This results in a NULL pointer\ndereference kernel oops when a user calls bonding ioctl (e.g.\nSIOCBONDENSLAVE, SIOCBONDRELEASE, etc.) with a non-existent slave\ninterface name.\n\nThis is reachable from userspace via the bonding ioctl interface with\nCAP_NET_ADMIN capability, making it a potential local denial-of-service\nvector.\n\nFix by moving the slave_dbg() call after the NULL check."}],"providerMetadata":{"dateUpdated":"2026-07-01T13:32:19.046Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1b7558c85493467b2ea20738866b822db6442034"},{"url":"https://git.kernel.org/stable/c/b02b2e3e876c18733b868a29064abd11cdbf8feb"},{"url":"https://git.kernel.org/stable/c/66693957bacd1c9dae6188a7312d6be69a221f2d"},{"url":"https://git.kernel.org/stable/c/a629418d463fb50d132a1aa063b0105857311e5f"},{"url":"https://git.kernel.org/stable/c/c2cfe290fdb1c32a4f4eb2b8ca3f363b305d21ba"},{"url":"https://git.kernel.org/stable/c/bcb8fad90f27300add583a8371db504b766d95c7"},{"url":"https://git.kernel.org/stable/c/b0878106ddc486375084145848ff255dedfff46a"},{"url":"https://git.kernel.org/stable/c/a764b0e8317a863006e05732e1aefe821b9d8c2d"}],"title":"net: bonding: fix NULL pointer dereference in bond_do_ioctl()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53337","datePublished":"2026-07-01T13:32:19.046Z","dateReserved":"2026-06-09T07:44:35.399Z","dateUpdated":"2026-07-01T13:32:19.046Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-01 14:16:41","lastModifiedDate":"2026-07-01 14:16:41","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53337","Ordinal":"1","Title":"net: bonding: fix NULL pointer dereference in bond_do_ioctl()","CVE":"CVE-2026-53337","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53337","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: bonding: fix NULL pointer dereference in bond_do_ioctl()\n\nIn bond_do_ioctl(), slave_dev is obtained via __dev_get_by_name() which\ncan return NULL if the requested interface name does not exist. However,\nthe subsequent slave_dbg() call is placed before the NULL check:\n\n    slave_dev = __dev_get_by_name(net, ifr->ifr_slave);\n    slave_dbg(bond_dev, slave_dev, \"slave_dev=%p:\\n\", slave_dev); //here\n    if (!slave_dev)\n        return -ENODEV;\n\nThe slave_dbg() macro expands to netdev_dbg(bond_dev, \"(slave %s): \" fmt,\n(slave_dev)->name, ...) which unconditionally dereferences slave_dev->name\nbefore the NULL check is performed. This results in a NULL pointer\ndereference kernel oops when a user calls bonding ioctl (e.g.\nSIOCBONDENSLAVE, SIOCBONDRELEASE, etc.) with a non-existent slave\ninterface name.\n\nThis is reachable from userspace via the bonding ioctl interface with\nCAP_NET_ADMIN capability, making it a potential local denial-of-service\nvector.\n\nFix by moving the slave_dbg() call after the NULL check.","Type":"Description","Title":"net: bonding: fix NULL pointer dereference in bond_do_ioctl()"}]}}}