156 lines
8.3 KiB
JSON
156 lines
8.3 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-2023-52897",
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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": "2024-08-21T06:07:11.014Z",
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"datePublished": "2024-08-21T06:10:37.316Z",
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"dateUpdated": "2026-05-11T19:35:06.319Z"
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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": "2026-05-11T19:35:06.319Z"
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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: qgroup: do not warn on record without old_roots populated\n\n[BUG]\nThere are some reports from the mailing list that since v6.1 kernel, the\nWARN_ON() inside btrfs_qgroup_account_extent() gets triggered during\nrescan:\n\n WARNING: CPU: 3 PID: 6424 at fs/btrfs/qgroup.c:2756 btrfs_qgroup_account_extents+0x1ae/0x260 [btrfs]\n CPU: 3 PID: 6424 Comm: snapperd Tainted: P OE 6.1.2-1-default #1 openSUSE Tumbleweed 05c7a1b1b61d5627475528f71f50444637b5aad7\n RIP: 0010:btrfs_qgroup_account_extents+0x1ae/0x260 [btrfs]\n Call Trace:\n <TASK>\n btrfs_commit_transaction+0x30c/0xb40 [btrfs c39c9c546c241c593f03bd6d5f39ea1b676250f6]\n ? start_transaction+0xc3/0x5b0 [btrfs c39c9c546c241c593f03bd6d5f39ea1b676250f6]\n btrfs_qgroup_rescan+0x42/0xc0 [btrfs c39c9c546c241c593f03bd6d5f39ea1b676250f6]\n btrfs_ioctl+0x1ab9/0x25c0 [btrfs c39c9c546c241c593f03bd6d5f39ea1b676250f6]\n ? __rseq_handle_notify_resume+0xa9/0x4a0\n ? mntput_no_expire+0x4a/0x240\n ? __seccomp_filter+0x319/0x4d0\n __x64_sys_ioctl+0x90/0xd0\n do_syscall_64+0x5b/0x80\n ? syscall_exit_to_user_mode+0x17/0x40\n ? do_syscall_64+0x67/0x80\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n RIP: 0033:0x7fd9b790d9bf\n </TASK>\n\n[CAUSE]\nSince commit e15e9f43c7ca (\"btrfs: introduce\nBTRFS_QGROUP_RUNTIME_FLAG_NO_ACCOUNTING to skip qgroup accounting\"), if\nour qgroup is already in inconsistent state, we will no longer do the\ntime-consuming backref walk.\n\nThis can leave some qgroup records without a valid old_roots ulist.\nNormally this is fine, as btrfs_qgroup_account_extents() would also skip\nthose records if we have NO_ACCOUNTING flag set.\n\nBut there is a small window, if we have NO_ACCOUNTING flag set, and\ninserted some qgroup_record without a old_roots ulist, but then the user\ntriggered a qgroup rescan.\n\nDuring btrfs_qgroup_rescan(), we firstly clear NO_ACCOUNTING flag, then\ncommit current transaction.\n\nAnd since we have a qgroup_record with old_roots = NULL, we trigger the\nWARN_ON() during btrfs_qgroup_account_extents().\n\n[FIX]\nUnfortunately due to the introduction of NO_ACCOUNTING flag, the\nassumption that every qgroup_record would have its old_roots populated\nis no longer correct.\n\nFix the false alerts and drop the WARN_ON()."
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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/qgroup.c"
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],
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"versions": [
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{
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"version": "e15e9f43c7ca25603fcf4c20d44ec777726f1034",
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"lessThan": "bb2c2e62539f2b63c5e0beb51501d328260c7595",
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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": "e15e9f43c7ca25603fcf4c20d44ec777726f1034",
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"lessThan": "75181406b4eafacc531ff2ee5fb032bd93317e2b",
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"status": "affected",
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"versionType": "git"
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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/qgroup.c"
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],
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"versions": [
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{
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"version": "6.1",
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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": "6.1",
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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": "6.1.8",
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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": "6.2",
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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",
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"versionEndExcluding": "6.1.8"
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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": "6.1",
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"versionEndExcluding": "6.2"
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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/bb2c2e62539f2b63c5e0beb51501d328260c7595"
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},
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{
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"url": "https://git.kernel.org/stable/c/75181406b4eafacc531ff2ee5fb032bd93317e2b"
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}
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],
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"title": "btrfs: qgroup: do not warn on record without old_roots populated",
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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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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2023-52897",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-09-10T16:03:40.621800Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-09-12T17:33:12.687Z"
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}
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}
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]
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}
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} |