{"api_version":"1","generated_at":"2026-05-05T22:37:05+00:00","cve":"CVE-2026-43013","urls":{"html":"https://cve.report/CVE-2026-43013","api":"https://cve.report/api/cve/CVE-2026-43013.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43013","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43013"},"summary":{"title":"net/mlx5: lag: Check for LAG device before creating debugfs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: lag: Check for LAG device before creating debugfs\n\n__mlx5_lag_dev_add_mdev() may return 0 (success) even when an error\noccurs that is handled gracefully. Consequently, the initialization\nflow proceeds to call mlx5_ldev_add_debugfs() even when there is no\nvalid LAG context.\n\nmlx5_ldev_add_debugfs() blindly created the debugfs directory and\nattributes. This exposed interfaces (like the members file) that rely on\na valid ldev pointer, leading to potential NULL pointer dereferences if\naccessed when ldev is NULL.\n\nAdd a check to verify that mlx5_lag_dev(dev) returns a valid pointer\nbefore attempting to create the debugfs entries.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-01 15:16:45","updated_at":"2026-05-01 15:24:14"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/bf16bca6653679d8a514d6c1c5a2c67065033f14","name":"https://git.kernel.org/stable/c/bf16bca6653679d8a514d6c1c5a2c67065033f14","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/89c65f2fcd8801365b410f40a427cbcd7f4c28e9","name":"https://git.kernel.org/stable/c/89c65f2fcd8801365b410f40a427cbcd7f4c28e9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a3db46d5f4df92630a96f7bc77b60e75c2353e06","name":"https://git.kernel.org/stable/c/a3db46d5f4df92630a96f7bc77b60e75c2353e06","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/cfa774e6c920c81e700327bf10db8cb50d5db456","name":"https://git.kernel.org/stable/c/cfa774e6c920c81e700327bf10db8cb50d5db456","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c53cf44588a93000f71817a6bb87a66353c48dee","name":"https://git.kernel.org/stable/c/c53cf44588a93000f71817a6bb87a66353c48dee","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/7129632cab3e4d23510b21930aa73b8d97a859f5","name":"https://git.kernel.org/stable/c/7129632cab3e4d23510b21930aa73b8d97a859f5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43013","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43013","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7f46a0b7327ae261f9981888708dbca22c283900 a3db46d5f4df92630a96f7bc77b60e75c2353e06 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7f46a0b7327ae261f9981888708dbca22c283900 7129632cab3e4d23510b21930aa73b8d97a859f5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7f46a0b7327ae261f9981888708dbca22c283900 cfa774e6c920c81e700327bf10db8cb50d5db456 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7f46a0b7327ae261f9981888708dbca22c283900 c53cf44588a93000f71817a6bb87a66353c48dee git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7f46a0b7327ae261f9981888708dbca22c283900 89c65f2fcd8801365b410f40a427cbcd7f4c28e9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7f46a0b7327ae261f9981888708dbca22c283900 bf16bca6653679d8a514d6c1c5a2c67065033f14 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.19","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.168 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.134 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.81 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.22 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.12 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43013","cve":"CVE-2026-43013","epss":"0.000240000","percentile":"0.067950000","score_date":"2026-05-04","updated_at":"2026-05-05 00:07:30"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a3db46d5f4df92630a96f7bc77b60e75c2353e06","status":"affected","version":"7f46a0b7327ae261f9981888708dbca22c283900","versionType":"git"},{"lessThan":"7129632cab3e4d23510b21930aa73b8d97a859f5","status":"affected","version":"7f46a0b7327ae261f9981888708dbca22c283900","versionType":"git"},{"lessThan":"cfa774e6c920c81e700327bf10db8cb50d5db456","status":"affected","version":"7f46a0b7327ae261f9981888708dbca22c283900","versionType":"git"},{"lessThan":"c53cf44588a93000f71817a6bb87a66353c48dee","status":"affected","version":"7f46a0b7327ae261f9981888708dbca22c283900","versionType":"git"},{"lessThan":"89c65f2fcd8801365b410f40a427cbcd7f4c28e9","status":"affected","version":"7f46a0b7327ae261f9981888708dbca22c283900","versionType":"git"},{"lessThan":"bf16bca6653679d8a514d6c1c5a2c67065033f14","status":"affected","version":"7f46a0b7327ae261f9981888708dbca22c283900","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.19"},{"lessThan":"5.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.168","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.134","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.81","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.22","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.168","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.134","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.81","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.22","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.12","versionStartIncluding":"5.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"5.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: lag: Check for LAG device before creating debugfs\n\n__mlx5_lag_dev_add_mdev() may return 0 (success) even when an error\noccurs that is handled gracefully. Consequently, the initialization\nflow proceeds to call mlx5_ldev_add_debugfs() even when there is no\nvalid LAG context.\n\nmlx5_ldev_add_debugfs() blindly created the debugfs directory and\nattributes. This exposed interfaces (like the members file) that rely on\na valid ldev pointer, leading to potential NULL pointer dereferences if\naccessed when ldev is NULL.\n\nAdd a check to verify that mlx5_lag_dev(dev) returns a valid pointer\nbefore attempting to create the debugfs entries."}],"providerMetadata":{"dateUpdated":"2026-05-01T14:15:18.907Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a3db46d5f4df92630a96f7bc77b60e75c2353e06"},{"url":"https://git.kernel.org/stable/c/7129632cab3e4d23510b21930aa73b8d97a859f5"},{"url":"https://git.kernel.org/stable/c/cfa774e6c920c81e700327bf10db8cb50d5db456"},{"url":"https://git.kernel.org/stable/c/c53cf44588a93000f71817a6bb87a66353c48dee"},{"url":"https://git.kernel.org/stable/c/89c65f2fcd8801365b410f40a427cbcd7f4c28e9"},{"url":"https://git.kernel.org/stable/c/bf16bca6653679d8a514d6c1c5a2c67065033f14"}],"title":"net/mlx5: lag: Check for LAG device before creating debugfs","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43013","datePublished":"2026-05-01T14:15:18.907Z","dateReserved":"2026-05-01T14:12:55.974Z","dateUpdated":"2026-05-01T14:15:18.907Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-01 15:16:45","lastModifiedDate":"2026-05-01 15:24:14","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43013","Ordinal":"1","Title":"net/mlx5: lag: Check for LAG device before creating debugfs","CVE":"CVE-2026-43013","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43013","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: lag: Check for LAG device before creating debugfs\n\n__mlx5_lag_dev_add_mdev() may return 0 (success) even when an error\noccurs that is handled gracefully. Consequently, the initialization\nflow proceeds to call mlx5_ldev_add_debugfs() even when there is no\nvalid LAG context.\n\nmlx5_ldev_add_debugfs() blindly created the debugfs directory and\nattributes. This exposed interfaces (like the members file) that rely on\na valid ldev pointer, leading to potential NULL pointer dereferences if\naccessed when ldev is NULL.\n\nAdd a check to verify that mlx5_lag_dev(dev) returns a valid pointer\nbefore attempting to create the debugfs entries.","Type":"Description","Title":"net/mlx5: lag: Check for LAG device before creating debugfs"}]}}}