{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46129","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.099Z","datePublished":"2026-05-28T09:35:44.271Z","dateUpdated":"2026-06-14T17:56:36.554Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-14T17:56:36.554Z"},"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":{"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"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/space-info.c"],"versions":[{"version":"20e8f2de3688082eeafeb93c8900485b7542457e","lessThan":"ae6d6e31ceb72b7697c28a528e4923c08e3c2ef5","status":"affected","versionType":"git"},{"version":"58208907c4044a764dbd8896026283905da6d9be","lessThan":"c2670ec4aa49ca226bce9776601e0da37502be07","status":"affected","versionType":"git"},{"version":"bb4fa4c0b54aae25e55faeda7f78d0c11b8cd618","lessThan":"f414b3abbba59ef379a2b3c31f2bdd9358ed5e53","status":"affected","versionType":"git"},{"version":"6cb008f1bb23e023dfe615cca5df14570dfc8da5","lessThan":"9a060970fd7b5e1c561e4ce73cb9949e4269a738","status":"affected","versionType":"git"},{"version":"a11224a016d6d1d46a4d9b6573244448a80d4d7f","lessThan":"dd6ade0fdd59218d71a981ae7c937a304e49209c","status":"affected","versionType":"git"},{"version":"a11224a016d6d1d46a4d9b6573244448a80d4d7f","lessThan":"3f487be81292702a59ea9dbc4088b3360a50e837","status":"affected","versionType":"git"},{"version":"6.1.162","lessThan":"6.1.175","status":"affected","versionType":"semver"},{"version":"6.6.122","lessThan":"6.6.140","status":"affected","versionType":"semver"},{"version":"6.12.67","lessThan":"6.12.88","status":"affected","versionType":"semver"},{"version":"6.18.7","lessThan":"6.18.30","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/space-info.c"],"versions":[{"version":"6.19","status":"affected"},{"version":"0","lessThan":"6.19","status":"unaffected","versionType":"semver"},{"version":"6.1.175","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.140","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.88","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.30","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.7","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.162","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.122","versionEndExcluding":"6.6.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.67","versionEndExcluding":"6.12.88"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.7","versionEndExcluding":"6.18.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ae6d6e31ceb72b7697c28a528e4923c08e3c2ef5"},{"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"}}}}