{"api_version":"1","generated_at":"2026-07-16T05:23:02+00:00","cve":"CVE-2026-53050","urls":{"html":"https://cve.report/CVE-2026-53050","api":"https://cve.report/api/cve/CVE-2026-53050.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53050","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53050"},"summary":{"title":"quota: Fix race of dquot_scan_active() with quota deactivation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nquota: Fix race of dquot_scan_active() with quota deactivation\n\ndquot_scan_active() can race with quota deactivation in\nquota_release_workfn() like:\n\n  CPU0 (quota_release_workfn)         CPU1 (dquot_scan_active)\n  ==============================      ==============================\n  spin_lock(&dq_list_lock);\n  list_replace_init(\n    &releasing_dquots, &rls_head);\n    /* dquot X on rls_head,\n       dq_count == 0,\n       DQ_ACTIVE_B still set */\n  spin_unlock(&dq_list_lock);\n  synchronize_srcu(&dquot_srcu);\n                                      spin_lock(&dq_list_lock);\n                                      list_for_each_entry(dquot,\n                                          &inuse_list, dq_inuse) {\n                                        /* finds dquot X */\n                                        dquot_active(X) -> true\n                                        atomic_inc(&X->dq_count);\n                                      }\n                                      spin_unlock(&dq_list_lock);\n  spin_lock(&dq_list_lock);\n  dquot = list_first_entry(&rls_head);\n  WARN_ON_ONCE(atomic_read(&dquot->dq_count));\n\nThe problem is not only a cosmetic one as under memory pressure the\ncaller of dquot_scan_active() can end up working on freed dquot.\n\nFix the problem by making sure the dquot is removed from releasing list\nwhen we acquire a reference to it.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-24 17:17:16","updated_at":"2026-07-14 15:26:52"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.8","severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/61e25f664dc2a08299e07d84c85776abc2350f75","name":"https://git.kernel.org/stable/c/61e25f664dc2a08299e07d84c85776abc2350f75","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2bdc80f4619411e5bd4a3ef23f51e14021ed457c","name":"https://git.kernel.org/stable/c/2bdc80f4619411e5bd4a3ef23f51e14021ed457c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f9438cb8c8ec3adc84b2b450a3aab0123d074c3b","name":"https://git.kernel.org/stable/c/f9438cb8c8ec3adc84b2b450a3aab0123d074c3b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/fdd424d7c35633ac577fd87d1b043d1b8a6cd350","name":"https://git.kernel.org/stable/c/fdd424d7c35633ac577fd87d1b043d1b8a6cd350","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/82cbdb4c1ebb5ea7d7bd45c18d3483b5bd32ebc1","name":"https://git.kernel.org/stable/c/82cbdb4c1ebb5ea7d7bd45c18d3483b5bd32ebc1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e93ab401da4b2e2c1b8ef2424de2f238d51c8b2d","name":"https://git.kernel.org/stable/c/e93ab401da4b2e2c1b8ef2424de2f238d51c8b2d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6678dde265708003c2b42551af4a2e3cb05decd5","name":"https://git.kernel.org/stable/c/6678dde265708003c2b42551af4a2e3cb05decd5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ac8a2e0d287ebf35e5d7e51e260b4e146648ba4a","name":"https://git.kernel.org/stable/c/ac8a2e0d287ebf35e5d7e51e260b4e146648ba4a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53050","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53050","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 22c06bf1f99ec3ec16b1a81342becba4c59a1f16 2bdc80f4619411e5bd4a3ef23f51e14021ed457c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 56e96b38d2f7cd95b3c30eb70decac7233915e0a f9438cb8c8ec3adc84b2b450a3aab0123d074c3b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 12a820a9923c11e8e898da9f82c8aded70cdcd16 ac8a2e0d287ebf35e5d7e51e260b4e146648ba4a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 869b6ea1609f655a43251bf41757aa44e5350a8f 6678dde265708003c2b42551af4a2e3cb05decd5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.175 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.141 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.91 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.33 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53050","cve":"CVE-2026-53050","epss":"0.001290000","percentile":"0.029230000","score_date":"2026-07-14","updated_at":"2026-07-15 00:14:55"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/quota/dquot.c","include/linux/quotaops.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2bdc80f4619411e5bd4a3ef23f51e14021ed457c","status":"affected","version":"22c06bf1f99ec3ec16b1a81342becba4c59a1f16","versionType":"git"},{"lessThan":"f9438cb8c8ec3adc84b2b450a3aab0123d074c3b","status":"affected","version":"56e96b38d2f7cd95b3c30eb70decac7233915e0a","versionType":"git"},{"lessThan":"ac8a2e0d287ebf35e5d7e51e260b4e146648ba4a","status":"affected","version":"12a820a9923c11e8e898da9f82c8aded70cdcd16","versionType":"git"},{"lessThan":"6678dde265708003c2b42551af4a2e3cb05decd5","status":"affected","version":"869b6ea1609f655a43251bf41757aa44e5350a8f","versionType":"git"},{"lessThan":"61e25f664dc2a08299e07d84c85776abc2350f75","status":"affected","version":"869b6ea1609f655a43251bf41757aa44e5350a8f","versionType":"git"},{"lessThan":"fdd424d7c35633ac577fd87d1b043d1b8a6cd350","status":"affected","version":"869b6ea1609f655a43251bf41757aa44e5350a8f","versionType":"git"},{"lessThan":"82cbdb4c1ebb5ea7d7bd45c18d3483b5bd32ebc1","status":"affected","version":"869b6ea1609f655a43251bf41757aa44e5350a8f","versionType":"git"},{"lessThan":"e93ab401da4b2e2c1b8ef2424de2f238d51c8b2d","status":"affected","version":"869b6ea1609f655a43251bf41757aa44e5350a8f","versionType":"git"},{"status":"affected","version":"bb7e3a019b52d829949d02b64ebab37838148fbf","versionType":"git"},{"status":"affected","version":"061a18239ced5eb086967a2b4451cb1cc5ce0702","versionType":"git"},{"status":"affected","version":"2a1ddddba6541143c8f73962f3021f1789114284","versionType":"git"},{"lessThan":"5.10.258","status":"affected","version":"5.10.199","versionType":"semver"},{"lessThan":"5.15.209","status":"affected","version":"5.15.136","versionType":"semver"},{"lessThan":"6.1.175","status":"affected","version":"6.1.59","versionType":"semver"},{"lessThan":"4.20","status":"affected","version":"4.19.297","versionType":"semver"},{"lessThan":"5.5","status":"affected","version":"5.4.259","versionType":"semver"},{"lessThan":"6.6","status":"affected","version":"6.5.8","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/quota/dquot.c","include/linux/quotaops.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.6"},{"lessThan":"6.6","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.141","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"5.10.199","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"5.15.136","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.175","versionStartIncluding":"6.1.59","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.141","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.91","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.6","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.297","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.259","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.5.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nquota: Fix race of dquot_scan_active() with quota deactivation\n\ndquot_scan_active() can race with quota deactivation in\nquota_release_workfn() like:\n\n  CPU0 (quota_release_workfn)         CPU1 (dquot_scan_active)\n  ==============================      ==============================\n  spin_lock(&dq_list_lock);\n  list_replace_init(\n    &releasing_dquots, &rls_head);\n    /* dquot X on rls_head,\n       dq_count == 0,\n       DQ_ACTIVE_B still set */\n  spin_unlock(&dq_list_lock);\n  synchronize_srcu(&dquot_srcu);\n                                      spin_lock(&dq_list_lock);\n                                      list_for_each_entry(dquot,\n                                          &inuse_list, dq_inuse) {\n                                        /* finds dquot X */\n                                        dquot_active(X) -> true\n                                        atomic_inc(&X->dq_count);\n                                      }\n                                      spin_unlock(&dq_list_lock);\n  spin_lock(&dq_list_lock);\n  dquot = list_first_entry(&rls_head);\n  WARN_ON_ONCE(atomic_read(&dquot->dq_count));\n\nThe problem is not only a cosmetic one as under memory pressure the\ncaller of dquot_scan_active() can end up working on freed dquot.\n\nFix the problem by making sure the dquot is removed from releasing list\nwhen we acquire a reference to it."}],"metrics":[{"cvssV3_1":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-28T06:38:37.088Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2bdc80f4619411e5bd4a3ef23f51e14021ed457c"},{"url":"https://git.kernel.org/stable/c/f9438cb8c8ec3adc84b2b450a3aab0123d074c3b"},{"url":"https://git.kernel.org/stable/c/ac8a2e0d287ebf35e5d7e51e260b4e146648ba4a"},{"url":"https://git.kernel.org/stable/c/6678dde265708003c2b42551af4a2e3cb05decd5"},{"url":"https://git.kernel.org/stable/c/61e25f664dc2a08299e07d84c85776abc2350f75"},{"url":"https://git.kernel.org/stable/c/fdd424d7c35633ac577fd87d1b043d1b8a6cd350"},{"url":"https://git.kernel.org/stable/c/82cbdb4c1ebb5ea7d7bd45c18d3483b5bd32ebc1"},{"url":"https://git.kernel.org/stable/c/e93ab401da4b2e2c1b8ef2424de2f238d51c8b2d"}],"title":"quota: Fix race of dquot_scan_active() with quota deactivation","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53050","datePublished":"2026-06-24T16:29:56.043Z","dateReserved":"2026-06-09T07:44:35.381Z","dateUpdated":"2026-06-28T06:38:37.088Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-24 17:17:16","lastModifiedDate":"2026-07-14 15:26:52","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53050","Ordinal":"1","Title":"quota: Fix race of dquot_scan_active() with quota deactivation","CVE":"CVE-2026-53050","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53050","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nquota: Fix race of dquot_scan_active() with quota deactivation\n\ndquot_scan_active() can race with quota deactivation in\nquota_release_workfn() like:\n\n  CPU0 (quota_release_workfn)         CPU1 (dquot_scan_active)\n  ==============================      ==============================\n  spin_lock(&dq_list_lock);\n  list_replace_init(\n    &releasing_dquots, &rls_head);\n    /* dquot X on rls_head,\n       dq_count == 0,\n       DQ_ACTIVE_B still set */\n  spin_unlock(&dq_list_lock);\n  synchronize_srcu(&dquot_srcu);\n                                      spin_lock(&dq_list_lock);\n                                      list_for_each_entry(dquot,\n                                          &inuse_list, dq_inuse) {\n                                        /* finds dquot X */\n                                        dquot_active(X) -> true\n                                        atomic_inc(&X->dq_count);\n                                      }\n                                      spin_unlock(&dq_list_lock);\n  spin_lock(&dq_list_lock);\n  dquot = list_first_entry(&rls_head);\n  WARN_ON_ONCE(atomic_read(&dquot->dq_count));\n\nThe problem is not only a cosmetic one as under memory pressure the\ncaller of dquot_scan_active() can end up working on freed dquot.\n\nFix the problem by making sure the dquot is removed from releasing list\nwhen we acquire a reference to it.","Type":"Description","Title":"quota: Fix race of dquot_scan_active() with quota deactivation"}]}}}