{"api_version":"1","generated_at":"2026-05-30T17:58:46+00:00","cve":"CVE-2026-46129","urls":{"html":"https://cve.report/CVE-2026-46129","api":"https://cve.report/api/cve/CVE-2026-46129.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46129","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46129"},"summary":{"title":"btrfs: fix double free in create_space_info() error path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix double free in create_space_info() error path\n\nWhen kobject_init_and_add() fails, the call chain is:\n\ncreate_space_info()\n-> btrfs_sysfs_add_space_info_type()\n-> kobject_init_and_add()\n-> failure\n-> kobject_put(&space_info->kobj)\n-> space_info_release()\n-> kfree(space_info)\n\nThen control returns to create_space_info():\n\nbtrfs_sysfs_add_space_info_type() returns error\n-> goto out_free\n-> kfree(space_info)\n\nThis causes a double free.\n\nKeep the direct kfree(space_info) for the earlier failure path, but\nafter btrfs_sysfs_add_space_info_type() has called kobject_put(), let\nthe kobject release callback handle the cleanup.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-28 10:16:28","updated_at":"2026-05-30 11:17:23"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/dd6ade0fdd59218d71a981ae7c937a304e49209c","name":"https://git.kernel.org/stable/c/dd6ade0fdd59218d71a981ae7c937a304e49209c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3f487be81292702a59ea9dbc4088b3360a50e837","name":"https://git.kernel.org/stable/c/3f487be81292702a59ea9dbc4088b3360a50e837","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f414b3abbba59ef379a2b3c31f2bdd9358ed5e53","name":"https://git.kernel.org/stable/c/f414b3abbba59ef379a2b3c31f2bdd9358ed5e53","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c2670ec4aa49ca226bce9776601e0da37502be07","name":"https://git.kernel.org/stable/c/c2670ec4aa49ca226bce9776601e0da37502be07","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/9a060970fd7b5e1c561e4ce73cb9949e4269a738","name":"https://git.kernel.org/stable/c/9a060970fd7b5e1c561e4ce73cb9949e4269a738","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46129","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46129","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 58208907c4044a764dbd8896026283905da6d9be c2670ec4aa49ca226bce9776601e0da37502be07 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected bb4fa4c0b54aae25e55faeda7f78d0c11b8cd618 f414b3abbba59ef379a2b3c31f2bdd9358ed5e53 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6cb008f1bb23e023dfe615cca5df14570dfc8da5 9a060970fd7b5e1c561e4ce73cb9949e4269a738 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a11224a016d6d1d46a4d9b6573244448a80d4d7f dd6ade0fdd59218d71a981ae7c937a304e49209c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected a11224a016d6d1d46a4d9b6573244448a80d4d7f 3f487be81292702a59ea9dbc4088b3360a50e837 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 20e8f2de3688082eeafeb93c8900485b7542457e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.6.122 6.6.140 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.12.67 6.12.88 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.7 6.18.30 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.1.162 6.2 semver","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 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.88 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.30 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.7 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46129","cve":"CVE-2026-46129","epss":"0.000180000","percentile":"0.051640000","score_date":"2026-05-29","updated_at":"2026-05-30 00:13:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/btrfs/space-info.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c2670ec4aa49ca226bce9776601e0da37502be07","status":"affected","version":"58208907c4044a764dbd8896026283905da6d9be","versionType":"git"},{"lessThan":"f414b3abbba59ef379a2b3c31f2bdd9358ed5e53","status":"affected","version":"bb4fa4c0b54aae25e55faeda7f78d0c11b8cd618","versionType":"git"},{"lessThan":"9a060970fd7b5e1c561e4ce73cb9949e4269a738","status":"affected","version":"6cb008f1bb23e023dfe615cca5df14570dfc8da5","versionType":"git"},{"lessThan":"dd6ade0fdd59218d71a981ae7c937a304e49209c","status":"affected","version":"a11224a016d6d1d46a4d9b6573244448a80d4d7f","versionType":"git"},{"lessThan":"3f487be81292702a59ea9dbc4088b3360a50e837","status":"affected","version":"a11224a016d6d1d46a4d9b6573244448a80d4d7f","versionType":"git"},{"status":"affected","version":"20e8f2de3688082eeafeb93c8900485b7542457e","versionType":"git"},{"lessThan":"6.6.140","status":"affected","version":"6.6.122","versionType":"semver"},{"lessThan":"6.12.88","status":"affected","version":"6.12.67","versionType":"semver"},{"lessThan":"6.18.30","status":"affected","version":"6.18.7","versionType":"semver"},{"lessThan":"6.2","status":"affected","version":"6.1.162","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/btrfs/space-info.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":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.88","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.30","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"6.6.122","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.88","versionStartIncluding":"6.12.67","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.30","versionStartIncluding":"6.18.7","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.7","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"6.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.162","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix double free in create_space_info() error path\n\nWhen kobject_init_and_add() fails, the call chain is:\n\ncreate_space_info()\n-> btrfs_sysfs_add_space_info_type()\n-> kobject_init_and_add()\n-> failure\n-> kobject_put(&space_info->kobj)\n-> space_info_release()\n-> kfree(space_info)\n\nThen control returns to create_space_info():\n\nbtrfs_sysfs_add_space_info_type() returns error\n-> goto out_free\n-> kfree(space_info)\n\nThis causes a double free.\n\nKeep the direct kfree(space_info) for the earlier failure path, but\nafter btrfs_sysfs_add_space_info_type() has called kobject_put(), let\nthe kobject release callback handle the cleanup."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-05-30T10:48:07.941Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/c2670ec4aa49ca226bce9776601e0da37502be07"},{"url":"https://git.kernel.org/stable/c/f414b3abbba59ef379a2b3c31f2bdd9358ed5e53"},{"url":"https://git.kernel.org/stable/c/9a060970fd7b5e1c561e4ce73cb9949e4269a738"},{"url":"https://git.kernel.org/stable/c/dd6ade0fdd59218d71a981ae7c937a304e49209c"},{"url":"https://git.kernel.org/stable/c/3f487be81292702a59ea9dbc4088b3360a50e837"}],"title":"btrfs: fix double free in create_space_info() error path","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46129","datePublished":"2026-05-28T09:35:44.271Z","dateReserved":"2026-05-13T15:03:33.099Z","dateUpdated":"2026-05-30T10:48:07.941Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-28 10:16:28","lastModifiedDate":"2026-05-30 11:17:23","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46129","Ordinal":"1","Title":"btrfs: fix double free in create_space_info() error path","CVE":"CVE-2026-46129","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46129","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix double free in create_space_info() error path\n\nWhen kobject_init_and_add() fails, the call chain is:\n\ncreate_space_info()\n-> btrfs_sysfs_add_space_info_type()\n-> kobject_init_and_add()\n-> failure\n-> kobject_put(&space_info->kobj)\n-> space_info_release()\n-> kfree(space_info)\n\nThen control returns to create_space_info():\n\nbtrfs_sysfs_add_space_info_type() returns error\n-> goto out_free\n-> kfree(space_info)\n\nThis causes a double free.\n\nKeep the direct kfree(space_info) for the earlier failure path, but\nafter btrfs_sysfs_add_space_info_type() has called kobject_put(), let\nthe kobject release callback handle the cleanup.","Type":"Description","Title":"btrfs: fix double free in create_space_info() error path"}]}}}