224 lines
11 KiB
JSON
224 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-31434",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-03-09T15:48:24.089Z",
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"datePublished": "2026-04-22T13:53:34.357Z",
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"dateUpdated": "2026-05-23T16:05:03.539Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-23T16:05:03.539Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix leak of kobject name for sub-group space_info\n\nWhen create_space_info_sub_group() allocates elements of\nspace_info->sub_group[], kobject_init_and_add() is called for each\nelement via btrfs_sysfs_add_space_info_type(). However, when\ncheck_removing_space_info() frees these elements, it does not call\nbtrfs_sysfs_remove_space_info() on them. As a result, kobject_put() is\nnot called and the associated kobj->name objects are leaked.\n\nThis memory leak is reproduced by running the blktests test case\nzbd/009 on kernels built with CONFIG_DEBUG_KMEMLEAK. The kmemleak\nfeature reports the following error:\n\nunreferenced object 0xffff888112877d40 (size 16):\n comm \"mount\", pid 1244, jiffies 4294996972\n hex dump (first 16 bytes):\n 64 61 74 61 2d 72 65 6c 6f 63 00 c4 c6 a7 cb 7f data-reloc......\n backtrace (crc 53ffde4d):\n __kmalloc_node_track_caller_noprof+0x619/0x870\n kstrdup+0x42/0xc0\n kobject_set_name_vargs+0x44/0x110\n kobject_init_and_add+0xcf/0x150\n btrfs_sysfs_add_space_info_type+0xfc/0x210 [btrfs]\n create_space_info_sub_group.constprop.0+0xfb/0x1b0 [btrfs]\n create_space_info+0x211/0x320 [btrfs]\n btrfs_init_space_info+0x15a/0x1b0 [btrfs]\n open_ctree+0x33c7/0x4a50 [btrfs]\n btrfs_get_tree.cold+0x9f/0x1ee [btrfs]\n vfs_get_tree+0x87/0x2f0\n vfs_cmd_create+0xbd/0x280\n __do_sys_fsconfig+0x3df/0x990\n do_syscall_64+0x136/0x1540\n entry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nTo avoid the leak, call btrfs_sysfs_remove_space_info() instead of\nkfree() for the elements."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/btrfs/block-group.c"
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],
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"versions": [
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{
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"version": "64c7ddda83acfbaa0efb381a1928ce908c584607",
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"lessThan": "416484f21a9d1280cf6daa7ebc10c79b59c46e48",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "0bd151ce4200ca847990e05cca29a76456982ca5",
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"lessThan": "94054ffd311a1f76b7093ba8ebf50bdb0d28337c",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "190d5a7c4fe42b8c9aa46e3336389e7cb10395bb",
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"lessThan": "1737ddeafbb1304f41ec2eede4f7366082e7c96a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "f92ee31e031c7819126d2febdda0c3e91f5d2eb9",
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"lessThan": "3c844d01f9874a43004c82970d8da94f9aba8949",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "f92ee31e031c7819126d2febdda0c3e91f5d2eb9",
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"lessThan": "3c645c6f7e5470debbb81666b230056de48f36dc",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "f92ee31e031c7819126d2febdda0c3e91f5d2eb9",
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"lessThan": "a4376d9a5d4c9610e69def3fc0b32c86a7ab7a41",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6.1.162",
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"lessThan": "6.1.168",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.6.122",
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"lessThan": "6.6.131",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.12.67",
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"lessThan": "6.12.80",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"fs/btrfs/block-group.c"
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],
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"versions": [
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{
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"version": "6.16",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.16",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.168",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.131",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.80",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.21",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.11",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.1.162",
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"versionEndExcluding": "6.1.168"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.6.122",
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"versionEndExcluding": "6.6.131"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.12.67",
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"versionEndExcluding": "6.12.80"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.16",
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"versionEndExcluding": "6.18.21"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.16",
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"versionEndExcluding": "6.19.11"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.16",
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"versionEndExcluding": "7.0"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/416484f21a9d1280cf6daa7ebc10c79b59c46e48"
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},
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{
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"url": "https://git.kernel.org/stable/c/94054ffd311a1f76b7093ba8ebf50bdb0d28337c"
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},
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{
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"url": "https://git.kernel.org/stable/c/1737ddeafbb1304f41ec2eede4f7366082e7c96a"
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},
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{
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"url": "https://git.kernel.org/stable/c/3c844d01f9874a43004c82970d8da94f9aba8949"
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},
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{
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"url": "https://git.kernel.org/stable/c/3c645c6f7e5470debbb81666b230056de48f36dc"
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},
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{
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"url": "https://git.kernel.org/stable/c/a4376d9a5d4c9610e69def3fc0b32c86a7ab7a41"
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}
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],
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"title": "btrfs: fix leak of kobject name for sub-group space_info",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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} |