{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-46164","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.102Z","datePublished":"2026-05-28T09:36:19.810Z","dateUpdated":"2026-06-19T11:59:45.001Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-06-19T11:59:45.001Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix double free in create_space_info_sub_group() error path\n\nWhen kobject_init_and_add() fails, the call chain is:\n\ncreate_space_info_sub_group()\n-> btrfs_sysfs_add_space_info_type()\n-> kobject_init_and_add()\n-> failure\n-> kobject_put(&sub_group->kobj)\n-> space_info_release()\n-> kfree(sub_group)\n\nThen control returns to create_space_info_sub_group(), where:\n\nbtrfs_sysfs_add_space_info_type() returns error\n-> kfree(sub_group)\n\nThus, sub_group is freed twice.\n\nKeep parent->sub_group[index] = NULL for the failure path, but after\nbtrfs_sysfs_add_space_info_type() has called kobject_put(), let the\nkobject release callback handle the cleanup."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H","baseScore":7,"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":"64c7ddda83acfbaa0efb381a1928ce908c584607","lessThan":"c2d59527cba6d59f0d77a75c1101ab4e69758bea","status":"affected","versionType":"git"},{"version":"0bd151ce4200ca847990e05cca29a76456982ca5","lessThan":"d2a675f2e238ec96c8e91e2718c1f910c9c8fb21","status":"affected","versionType":"git"},{"version":"190d5a7c4fe42b8c9aa46e3336389e7cb10395bb","lessThan":"14b22be1dd844383eb03af9b1ee3b6b25d32aeaf","status":"affected","versionType":"git"},{"version":"f92ee31e031c7819126d2febdda0c3e91f5d2eb9","lessThan":"dfd05a16b5c9d1d98b47905f37f2fccda52173d1","status":"affected","versionType":"git"},{"version":"f92ee31e031c7819126d2febdda0c3e91f5d2eb9","lessThan":"259af6857a1b4f1e9ef8b780353f9d11c26a22bd","status":"affected","versionType":"git"},{"version":"f92ee31e031c7819126d2febdda0c3e91f5d2eb9","lessThan":"a7449edf96143f192606ec8647e3167e1ecbd728","status":"affected","versionType":"git"},{"version":"6.1.162","lessThan":"6.1.176","status":"affected","versionType":"semver"},{"version":"6.6.122","lessThan":"6.6.141","status":"affected","versionType":"semver"},{"version":"6.12.67","lessThan":"6.12.90","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":"6.16","status":"affected"},{"version":"0","lessThan":"6.16","status":"unaffected","versionType":"semver"},{"version":"6.1.176","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.141","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.90","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.32","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":"6.1.176"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.122","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.67","versionEndExcluding":"6.12.90"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.18.32"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/c2d59527cba6d59f0d77a75c1101ab4e69758bea"},{"url":"https://git.kernel.org/stable/c/d2a675f2e238ec96c8e91e2718c1f910c9c8fb21"},{"url":"https://git.kernel.org/stable/c/14b22be1dd844383eb03af9b1ee3b6b25d32aeaf"},{"url":"https://git.kernel.org/stable/c/dfd05a16b5c9d1d98b47905f37f2fccda52173d1"},{"url":"https://git.kernel.org/stable/c/259af6857a1b4f1e9ef8b780353f9d11c26a22bd"},{"url":"https://git.kernel.org/stable/c/a7449edf96143f192606ec8647e3167e1ecbd728"}],"title":"btrfs: fix double free in create_space_info_sub_group() error path","x_generator":{"engine":"bippy-1.2.0"}}}}