{"id":"CVE-2024-56780","state":"PUBLISHED","title":"quota: flush quota_release_work upon quota writeback","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nquota: flush quota_release_work upon quota writeback\n\nOne of the paths quota writeback is called from is:\n\nfreeze_super()\n  sync_filesystem()\n    ext4_sync_fs()\n      dquot_writeback_dquots()\n\nSince we currently don't always flush the quota_release_work queue in\nthis path, we can end up with the following race:\n\n 1. dquot are added to releasing_dquots list during regular operations.\n 2. FS Freeze starts, however, this does not flush the quota_release_work queue.\n 3. Freeze completes.\n 4. Kernel eventually tries to flush the workqueue while FS is frozen which\n    hits a WARN_ON since transaction gets started during frozen state:\n\n  ext4_journal_check_start+0x28/0x110 [ext4] (unreliable)\n  __ext4_journal_start_sb+0x64/0x1c0 [ext4]\n  ext4_release_dquot+0x90/0x1d0 [ext4]\n  quota_release_workfn+0x43c/0x4d0\n\nWhich is the following line:\n\n  WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE);\n\nWhich ultimately results in generic/390 failing due to dmesg\nnoise. This was detected on powerpc machine 15 cores.\n\nTo avoid this, make sure to flush the workqueue during\ndquot_writeback_dquots() so we dont have any pending workitems after\nfreeze.","publishedAt":"2025-01-08T17:49:17.889Z","updatedAt":"2026-10-15T01:00:38.732Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d40c192e119892799dd4ddf94f5cea6fa93775ef","status":"affected","lessThan":"a5abba5e0e586e258ded3e798fe5f69c66fec198","versionType":"git"},{"version":"86d89987f0998c98f57d641e308b40452a994045","status":"affected","lessThan":"6f3821acd7c3143145999248087de5fb4b48cf26","versionType":"git"},{"version":"89602de9a2d7080b7a4029d5c1bf8f78d295ff5f","status":"affected","lessThan":"ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb","versionType":"git"},{"version":"3027e200dd58d5b437f16634dbbd355b29ffe0a6","status":"affected","lessThan":"3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb","versionType":"git"},{"version":"dabc8b20756601b9e1cc85a81d47d3f98ed4d13a","status":"affected","lessThan":"bcacb52a985f1b6d280f698a470b873dfe52728a","versionType":"git"},{"version":"dabc8b20756601b9e1cc85a81d47d3f98ed4d13a","status":"affected","lessThan":"8ea87e34792258825d290f4dc5216276e91cb224","versionType":"git"},{"version":"dabc8b20756601b9e1cc85a81d47d3f98ed4d13a","status":"affected","lessThan":"ac6f420291b3fee1113f21d612fa88b628afab5b","versionType":"git"},{"version":"f3e9a2bbdeb8987508dd6bb2b701dea911d4daec","status":"affected","versionType":"git"},{"version":"903fc5d8cb48b0d2de7095ef40e39fd32bb27bd0","status":"affected","versionType":"git"},{"version":"31bed65eecbc5ce57592cfe31947eaa64e3d678e","status":"affected","versionType":"git"},{"version":"5.4.257","status":"affected","lessThan":"5.4.287","versionType":"semver"},{"version":"5.10.195","status":"affected","lessThan":"5.10.231","versionType":"semver"},{"version":"5.15.132","status":"affected","lessThan":"5.15.174","versionType":"semver"},{"version":"6.1.53","status":"affected","lessThan":"6.1.120","versionType":"semver"},{"version":"4.19.295","status":"affected","lessThan":"4.20","versionType":"semver"},{"version":"6.4.16","status":"affected","lessThan":"6.5","versionType":"semver"},{"version":"6.5.3","status":"affected","lessThan":"6.6","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/quota/dquot.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"5.4.287","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.4","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/quota/dquot.c"]}],"references":["https://git.kernel.org/stable/c/a5abba5e0e586e258ded3e798fe5f69c66fec198","https://git.kernel.org/stable/c/6f3821acd7c3143145999248087de5fb4b48cf26","https://git.kernel.org/stable/c/ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb","https://git.kernel.org/stable/c/3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb","https://git.kernel.org/stable/c/bcacb52a985f1b6d280f698a470b873dfe52728a","https://git.kernel.org/stable/c/8ea87e34792258825d290f4dc5216276e91cb224","https://git.kernel.org/stable/c/ac6f420291b3fee1113f21d612fa88b628afab5b","https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html","https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html","https://cert-portal.siemens.com/productcert/html/ssa-398330.html","https://cert-portal.siemens.com/productcert/html/ssa-355557.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/56xxx/CVE-2024-56780.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56780","state":"PUBLISHED","datePublished":"2025-01-08T17:49:17.889Z","dateUpdated":"2026-10-15T01:00:38.732Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T11:26:39.768Z"},"containers":{"cna":{"title":"quota: flush quota_release_work upon quota writeback","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nquota: flush quota_release_work upon quota writeback\n\nOne of the paths quota writeback is called from is:\n\nfreeze_super()\n  sync_filesystem()\n    ext4_sync_fs()\n      dquot_writeback_dquots()\n\nSince we currently don't always flush the quota_release_work queue in\nthis path, we can end up with the following race:\n\n 1. dquot are added to releasing_dquots list during regular operations.\n 2. FS Freeze starts, however, this does not flush the quota_release_work queue.\n 3. Freeze completes.\n 4. Kernel eventually tries to flush the workqueue while FS is frozen which\n    hits a WARN_ON since transaction gets started during frozen state:\n\n  ext4_journal_check_start+0x28/0x110 [ext4] (unreliable)\n  __ext4_journal_start_sb+0x64/0x1c0 [ext4]\n  ext4_release_dquot+0x90/0x1d0 [ext4]\n  quota_release_workfn+0x43c/0x4d0\n\nWhich is the following line:\n\n  WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE);\n\nWhich ultimately results in generic/390 failing due to dmesg\nnoise. This was detected on powerpc machine 15 cores.\n\nTo avoid this, make sure to flush the workqueue during\ndquot_writeback_dquots() so we dont have any pending workitems after\nfreeze."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d40c192e119892799dd4ddf94f5cea6fa93775ef","status":"affected","lessThan":"a5abba5e0e586e258ded3e798fe5f69c66fec198","versionType":"git"},{"version":"86d89987f0998c98f57d641e308b40452a994045","status":"affected","lessThan":"6f3821acd7c3143145999248087de5fb4b48cf26","versionType":"git"},{"version":"89602de9a2d7080b7a4029d5c1bf8f78d295ff5f","status":"affected","lessThan":"ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb","versionType":"git"},{"version":"3027e200dd58d5b437f16634dbbd355b29ffe0a6","status":"affected","lessThan":"3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb","versionType":"git"},{"version":"dabc8b20756601b9e1cc85a81d47d3f98ed4d13a","status":"affected","lessThan":"bcacb52a985f1b6d280f698a470b873dfe52728a","versionType":"git"},{"version":"dabc8b20756601b9e1cc85a81d47d3f98ed4d13a","status":"affected","lessThan":"8ea87e34792258825d290f4dc5216276e91cb224","versionType":"git"},{"version":"dabc8b20756601b9e1cc85a81d47d3f98ed4d13a","status":"affected","lessThan":"ac6f420291b3fee1113f21d612fa88b628afab5b","versionType":"git"},{"version":"f3e9a2bbdeb8987508dd6bb2b701dea911d4daec","status":"affected","versionType":"git"},{"version":"903fc5d8cb48b0d2de7095ef40e39fd32bb27bd0","status":"affected","versionType":"git"},{"version":"31bed65eecbc5ce57592cfe31947eaa64e3d678e","status":"affected","versionType":"git"},{"version":"5.4.257","status":"affected","lessThan":"5.4.287","versionType":"semver"},{"version":"5.10.195","status":"affected","lessThan":"5.10.231","versionType":"semver"},{"version":"5.15.132","status":"affected","lessThan":"5.15.174","versionType":"semver"},{"version":"6.1.53","status":"affected","lessThan":"6.1.120","versionType":"semver"},{"version":"4.19.295","status":"affected","lessThan":"4.20","versionType":"semver"},{"version":"6.4.16","status":"affected","lessThan":"6.5","versionType":"semver"},{"version":"6.5.3","status":"affected","lessThan":"6.6","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/quota/dquot.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"5.4.287","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.231","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.174","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.120","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.64","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.4","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/quota/dquot.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/a5abba5e0e586e258ded3e798fe5f69c66fec198"},{"url":"https://git.kernel.org/stable/c/6f3821acd7c3143145999248087de5fb4b48cf26"},{"url":"https://git.kernel.org/stable/c/ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb"},{"url":"https://git.kernel.org/stable/c/3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb"},{"url":"https://git.kernel.org/stable/c/bcacb52a985f1b6d280f698a470b873dfe52728a"},{"url":"https://git.kernel.org/stable/c/8ea87e34792258825d290f4dc5216276e91cb224"},{"url":"https://git.kernel.org/stable/c/ac6f420291b3fee1113f21d612fa88b628afab5b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:56:03.580Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.257","versionEndExcluding":"5.4.287"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.195","versionEndExcluding":"5.10.231"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.132","versionEndExcluding":"5.15.174"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.53","versionEndExcluding":"6.1.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding"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