{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-54177", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54177", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-12-30T12:08:49.588Z", "updatedAt": "2026-05-23T15:33:55.130Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "quota: fix warning in dqgrab()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nquota: fix warning in dqgrab()\n\nThere's issue as follows when do fault injection:\nWARNING: CPU: 1 PID: 14870 at include/linux/quotaops.h:51 dquot_disable+0x13b7/0x18c0\nModules linked in:\nCPU: 1 PID: 14870 Comm: fsconfig Not tainted 6.3.0-next-20230505-00006-g5107a9c821af-dirty #541\nRIP: 0010:dquot_disable+0x13b7/0x18c0\nRSP: 0018:ffffc9000acc79e0 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88825e41b980\nRDX: 0000000000000000 RSI: ffff88825e41b980 RDI: 0000000000000002\nRBP: ffff888179f68000 R08: ffffffff82087ca7 R09: 0000000000000000\nR10: 0000000000000001 R11: ffffed102f3ed026 R12: ffff888179f68130\nR13: ffff888179f68110 R14: dffffc0000000000 R15: ffff888179f68118\nFS: 00007f450a073740(0000) GS:ffff88882fc00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ffe96f2efd8 CR3: 000000025c8ad000 CR4: 00000000000006e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \n dquot_load_quota_sb+0xd53/0x1060\n dquot_resume+0x172/0x230\n ext4_reconfigure+0x1dc6/0x27b0\n reconfigure_super+0x515/0xa90\n __x64_sys_fsconfig+0xb19/0xd20\n do_syscall_64+0x39/0xb0\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nAbove issue may happens as follows:\nProcessA ProcessB ProcessC\nsys_fsconfig\n vfs_fsconfig_locked\n reconfigure_super\n ext4_remount\n dquot_suspend -> suspend all type quota\n\n sys_fsconfig\n vfs_fsconfig_locked\n reconfigure_super\n ext4_remount\n dquot_resume\n ret = dquot_load_quota_sb\n add_dquot_ref\n do_open -> open file O_RDWR\n vfs_open\n do_dentry_open\n get_write_access\n atomic_inc_unless_negative(&inode->i_writecount)\n ext4_file_open\n dquot_file_open\n dquot_initialize\n __dquot_initialize\n dqget\n\t\t\t\t\t\t atomic_inc(&dquot->dq_count);\n\n __dquot_initialize\n __dquot_initialize\n dqget\n if (!test_bit(DQ_ACTIVE_B, &dquot->dq_flags))\n ext4_acquire_dquot\n\t\t\t -> Return error DQ_ACTIVE_B flag isn't set\n dquot_disable\n\t\t\t invalidate_dquots\n\t\t\t if (atomic_read(&dquot->dq_count))\n\t dqgrab\n\t\t\t WARN_ON_ONCE(!test_bit(DQ_ACTIVE_B, &dquot->dq_flags))\n\t -> Trigger warning\n\nIn the above scenario, 'dquot->dq_flags' has no DQ_ACTIVE_B is normal when\ndqgrab().\nTo solve above issue just replace the dqgrab() use in invalidate_dquots() with\natomic_inc(&dquot->dq_count).", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "6478eabc92274efae6269da7c515ba2b4c8e88d8" }, { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "965bad2bf1afef64ec16249da676dc7310cca32e" }, { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "3f378783c47b5749317ea008d8c931d6d3986d8f" }, { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "cbaebbba722cb9738c55903efce11f51cdd97bee" }, { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "579d814de87c3cac69c9b261efa165d07cde3357" }, { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "6432843debe1ec7d76c5b2f76c67f9c5df22436e" }, { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "6f4e543d277a12dfeff027e6ab24a170e1bfc160" }, { "version": "9f985cb6c45bc3f8b7e161c9658d409d051d576f", "status": "affected", "versionType": "git", "lessThan": "d6a95db3c7ad160bc16b89e36449705309b52bcb" }, { "version": "b5258061a2a8f657aa5900dd3c1ded9e868e3544", "status": "affected", "versionType": "git" }, { "version": "3.12.24", "status": "affected", "versionType": "semver", "lessThan": "3.13" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.15", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.15" }, { "version": "4.14.324", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.293", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.255", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.192", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.123", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.42", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.4.7", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.4.*" }, { "version": "6.5", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }