206 lines
12 KiB
JSON
206 lines
12 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-2026-23267",
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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": "2026-01-13T15:37:45.991Z",
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"datePublished": "2026-03-18T17:46:09.116Z",
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"dateUpdated": "2026-05-11T22:03:33.438Z"
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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": "2026-05-11T22:03:33.438Z"
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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 IS_CHECKPOINTED flag inconsistency issue caused by concurrent atomic commit and checkpoint writes\n\nDuring SPO tests, when mounting F2FS, an -EINVAL error was returned from\nf2fs_recover_inode_page. The issue occurred under the following scenario\n\nThread A Thread B\nf2fs_ioc_commit_atomic_write\n - f2fs_do_sync_file // atomic = true\n - f2fs_fsync_node_pages\n : last_folio = inode folio\n : schedule before folio_lock(last_folio) f2fs_write_checkpoint\n - block_operations// writeback last_folio\n - schedule before f2fs_flush_nat_entries\n : set_fsync_mark(last_folio, 1)\n : set_dentry_mark(last_folio, 1)\n : folio_mark_dirty(last_folio)\n - __write_node_folio(last_folio)\n : f2fs_down_read(&sbi->node_write)//block\n - f2fs_flush_nat_entries\n : {struct nat_entry}->flag |= BIT(IS_CHECKPOINTED)\n - unblock_operations\n : f2fs_up_write(&sbi->node_write)\n f2fs_write_checkpoint//return\n : f2fs_do_write_node_page()\nf2fs_ioc_commit_atomic_write//return\n SPO\n\nThread A calls f2fs_need_dentry_mark(sbi, ino), and the last_folio has\nalready been written once. However, the {struct nat_entry}->flag did not\nhave the IS_CHECKPOINTED set, causing set_dentry_mark(last_folio, 1) and\nwrite last_folio again after Thread B finishes f2fs_write_checkpoint.\n\nAfter SPO and reboot, it was detected that {struct node_info}->blk_addr\nwas not NULL_ADDR because Thread B successfully write the checkpoint.\n\nThis issue only occurs in atomic write scenarios. For regular file\nfsync operations, the folio must be dirty. If\nblock_operations->f2fs_sync_node_pages successfully submit the folio\nwrite, this path will not be executed. Otherwise, the\nf2fs_write_checkpoint will need to wait for the folio write submission\nto complete, as sbi->nr_pages[F2FS_DIRTY_NODES] > 0. Therefore, the\nsituation where f2fs_need_dentry_mark checks that the {struct\nnat_entry}->flag /wo the IS_CHECKPOINTED flag, but the folio write has\nalready been submitted, will not occur.\n\nTherefore, for atomic file fsync, sbi->node_write should be acquired\nthrough __write_node_folio to ensure that the IS_CHECKPOINTED flag\ncorrectly indicates that the checkpoint write has been completed."
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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/node.c"
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],
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"versions": [
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{
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"version": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b",
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"lessThan": "32bc3c9fe18881d50dd51fd5f26d19fe1190dc0d",
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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": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b",
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"lessThan": "75e19da068adf0dc5dd269dd157392434b9117d4",
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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": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b",
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"lessThan": "962c167b0f262b9962207fbeaa531721d55ea00e",
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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": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b",
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"lessThan": "bd66b4c487d5091d2a65d6089e0de36f0c26a4c7",
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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": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b",
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"lessThan": "ed81bc5885460905f9160e7b463e5708fd056324",
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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": "608514deba38c8611ad330d6a3c8e2b9a1f68e4b",
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"lessThan": "7633a7387eb4d0259d6bea945e1d3469cd135bbc",
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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/f2fs/node.c"
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],
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"versions": [
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{
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"version": "4.7",
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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": "4.7",
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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": "6.1.164",
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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": "6.6.127",
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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": "6.12.74",
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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": "6.18.13",
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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": "6.19.3",
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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": "4.7",
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"versionEndExcluding": "6.1.164"
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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": "4.7",
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"versionEndExcluding": "6.6.127"
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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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"versionStartIncluding": "4.7",
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"versionEndExcluding": "6.12.74"
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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": "4.7",
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"versionEndExcluding": "6.18.13"
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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": "4.7",
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"versionEndExcluding": "6.19.3"
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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": "4.7",
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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/32bc3c9fe18881d50dd51fd5f26d19fe1190dc0d"
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},
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{
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"url": "https://git.kernel.org/stable/c/75e19da068adf0dc5dd269dd157392434b9117d4"
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},
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{
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"url": "https://git.kernel.org/stable/c/962c167b0f262b9962207fbeaa531721d55ea00e"
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},
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{
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"url": "https://git.kernel.org/stable/c/bd66b4c487d5091d2a65d6089e0de36f0c26a4c7"
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},
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{
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"url": "https://git.kernel.org/stable/c/ed81bc5885460905f9160e7b463e5708fd056324"
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},
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{
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"url": "https://git.kernel.org/stable/c/7633a7387eb4d0259d6bea945e1d3469cd135bbc"
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}
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],
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"title": "f2fs: fix IS_CHECKPOINTED flag inconsistency issue caused by concurrent atomic commit and checkpoint writes",
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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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}
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} |