198 lines
9.6 KiB
JSON
198 lines
9.6 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-2023-53618",
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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": "2025-10-07T15:16:59.655Z",
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"datePublished": "2025-10-07T15:19:25.303Z",
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"dateUpdated": "2026-05-23T15:30:09.733Z"
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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": "2026-05-23T15:30:09.733Z"
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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: reject invalid reloc tree root keys with stack dump\n\n[BUG]\nSyzbot reported a crash that an ASSERT() got triggered inside\nprepare_to_merge().\n\nThat ASSERT() makes sure the reloc tree is properly pointed back by its\nsubvolume tree.\n\n[CAUSE]\nAfter more debugging output, it turns out we had an invalid reloc tree:\n\n BTRFS error (device loop1): reloc tree mismatch, root 8 has no reloc root, expect reloc root key (-8, 132, 8) gen 17\n\nNote the above root key is (TREE_RELOC_OBJECTID, ROOT_ITEM,\nQUOTA_TREE_OBJECTID), meaning it's a reloc tree for quota tree.\n\nBut reloc trees can only exist for subvolumes, as for non-subvolume\ntrees, we just COW the involved tree block, no need to create a reloc\ntree since those tree blocks won't be shared with other trees.\n\nOnly subvolumes tree can share tree blocks with other trees (thus they\nhave BTRFS_ROOT_SHAREABLE flag).\n\nThus this new debug output proves my previous assumption that corrupted\non-disk data can trigger that ASSERT().\n\n[FIX]\nBesides the dedicated fix and the graceful exit, also let tree-checker to\ncheck such root keys, to make sure reloc trees can only exist for subvolumes."
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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/disk-io.c",
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"fs/btrfs/tree-checker.c"
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],
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"versions": [
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{
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"version": "259ee7754b6793af8bdd77f9ca818bc41cfe9541",
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"lessThan": "314135b7bae9618a317874ae195272682cf2d5d4",
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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": "259ee7754b6793af8bdd77f9ca818bc41cfe9541",
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"lessThan": "3ae93b316ca4b8b3c33798ef1d210355f2fb9318",
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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": "259ee7754b6793af8bdd77f9ca818bc41cfe9541",
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"lessThan": "84256e00eeca73c529fc6196e478cc89b8098157",
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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": "259ee7754b6793af8bdd77f9ca818bc41cfe9541",
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"lessThan": "6ebcd021c92b8e4b904552e4d87283032100796d",
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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": "3d95c52d789ca99e344061d7f6dadb2519adbcf5",
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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": "fba904d68c8bbfcc89c2210cfcb2351be90bc3e5",
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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": "5.2.19",
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"lessThan": "5.3",
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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": "5.3.4",
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"lessThan": "5.4",
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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/disk-io.c",
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"fs/btrfs/tree-checker.c"
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],
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"versions": [
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{
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"version": "5.4",
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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": "5.4",
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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": "5.15.127",
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"lessThanOrEqual": "5.15.*",
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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": "6.1.46",
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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": "6.4.11",
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"lessThanOrEqual": "6.4.*",
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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": "6.5",
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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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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.4",
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"versionEndExcluding": "5.15.127"
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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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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.2.19"
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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/314135b7bae9618a317874ae195272682cf2d5d4"
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},
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{
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"url": "https://git.kernel.org/stable/c/3ae93b316ca4b8b3c33798ef1d210355f2fb9318"
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},
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{
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"url": "https://git.kernel.org/stable/c/84256e00eeca73c529fc6196e478cc89b8098157"
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},
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{
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"url": "https://git.kernel.org/stable/c/6ebcd021c92b8e4b904552e4d87283032100796d"
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}
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],
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"title": "btrfs: reject invalid reloc tree root keys with stack dump",
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"x_generator": {
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} |