170 lines
8.5 KiB
JSON
170 lines
8.5 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-2025-40150",
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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": "2025-04-16T07:20:57.175Z",
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"datePublished": "2025-11-12T10:23:27.399Z",
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"dateUpdated": "2026-05-23T16:01:31.919Z"
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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": "2026-05-23T16:01:31.919Z"
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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\nf2fs: fix to avoid migrating empty section\n\nIt reports a bug from device w/ zufs:\n\nF2FS-fs (dm-64): Inconsistent segment (173822) type [1, 0] in SSA and SIT\nF2FS-fs (dm-64): Stopped filesystem due to reason: 4\n\nThread A\t\t\t\tThread B\n- f2fs_expand_inode_data\n - f2fs_allocate_pinning_section\n - f2fs_gc_range\n - do_garbage_collect w/ segno #x\n\t\t\t\t\t- writepage\n\t\t\t\t\t - f2fs_allocate_data_block\n\t\t\t\t\t - new_curseg\n\t\t\t\t\t - allocate segno #x\n\nThe root cause is: fallocate on pinning file may race w/ block allocation\nas above, result in do_garbage_collect() from fallocate() may migrate\nsegment which is just allocated by a log, the log will update segment type\nin its in-memory structure, however GC will get segment type from on-disk\nSSA block, once segment type changes by log, we can detect such\ninconsistency, then shutdown filesystem.\n\nIn this case, on-disk SSA shows type of segno #173822 is 1 (SUM_TYPE_NODE),\nhowever segno #173822 was just allocated as data type segment, so in-memory\nSIT shows type of segno #173822 is 0 (SUM_TYPE_DATA).\n\nChange as below to fix this issue:\n- check whether current section is empty before gc\n- add sanity checks on do_garbage_collect() to avoid any race case, result\nin migrating segment used by log.\n- btw, it fixes misc issue in printed logs: \"SSA and SIT\" -> \"SIT and SSA\"."
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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/f2fs/gc.c"
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],
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"versions": [
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{
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"version": "40d76c393cca83938b11eb7ca8983aa3cd0ed69b",
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"lessThan": "db489778e6f2a4034c2cd26fadda2796eba24dcd",
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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": "9703d69d9d153bb230711d0d577454552aeb13d4",
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"lessThan": "25d2dc669f2a7e48b335d1cb07139f2ffc9fe5df",
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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": "9703d69d9d153bb230711d0d577454552aeb13d4",
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"lessThan": "eec1589be36fcf7440755703e4faeee2c01e360b",
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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": "9703d69d9d153bb230711d0d577454552aeb13d4",
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"lessThan": "d625a2b08c089397d3a03bff13fa8645e4ec7a01",
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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": "6.6.33",
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"lessThan": "6.6.130",
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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/f2fs/gc.c"
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],
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"versions": [
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{
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"version": "6.9",
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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": "6.9",
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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": "6.6.130",
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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": "6.12.78",
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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": "6.17.3",
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"lessThanOrEqual": "6.17.*",
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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",
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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": "6.6.33",
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"versionEndExcluding": "6.6.130"
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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": "6.9",
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"versionEndExcluding": "6.12.78"
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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": "6.9",
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"versionEndExcluding": "6.17.3"
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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": "6.9",
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"versionEndExcluding": "6.18"
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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/db489778e6f2a4034c2cd26fadda2796eba24dcd"
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},
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{
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"url": "https://git.kernel.org/stable/c/25d2dc669f2a7e48b335d1cb07139f2ffc9fe5df"
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},
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{
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"url": "https://git.kernel.org/stable/c/eec1589be36fcf7440755703e4faeee2c01e360b"
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},
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{
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"url": "https://git.kernel.org/stable/c/d625a2b08c089397d3a03bff13fa8645e4ec7a01"
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}
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],
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"title": "f2fs: fix to avoid migrating empty section",
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"x_generator": {
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} |