{ "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-2023-52808", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-52808", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2024-05-21T15:31:18.330Z", "updatedAt": "2026-05-11T19:33:30.737Z", "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": "scsi: hisi_sas: Set debugfs_dir pointer to NULL after removing debugfs", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: hisi_sas: Set debugfs_dir pointer to NULL after removing debugfs\n\nIf init debugfs failed during device registration due to memory allocation\nfailure, debugfs_remove_recursive() is called, after which debugfs_dir is\nnot set to NULL. debugfs_remove_recursive() will be called again during\ndevice removal. As a result, illegal pointer is accessed.\n\n[ 1665.467244] hisi_sas_v3_hw 0000:b4:02.0: failed to init debugfs!\n...\n[ 1669.836708] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0\n[ 1669.872669] pc : down_write+0x24/0x70\n[ 1669.876315] lr : down_write+0x1c/0x70\n[ 1669.879961] sp : ffff000036f53a30\n[ 1669.883260] x29: ffff000036f53a30 x28: ffffa027c31549f8\n[ 1669.888547] x27: ffffa027c3140000 x26: 0000000000000000\n[ 1669.893834] x25: ffffa027bf37c270 x24: ffffa027bf37c270\n[ 1669.899122] x23: ffff0000095406b8 x22: ffff0000095406a8\n[ 1669.904408] x21: 0000000000000000 x20: ffffa027bf37c310\n[ 1669.909695] x19: 00000000000000a0 x18: ffff8027dcd86f10\n[ 1669.914982] x17: 0000000000000000 x16: 0000000000000000\n[ 1669.920268] x15: 0000000000000000 x14: ffffa0274014f870\n[ 1669.925555] x13: 0000000000000040 x12: 0000000000000228\n[ 1669.930842] x11: 0000000000000020 x10: 0000000000000bb0\n[ 1669.936129] x9 : ffff000036f537f0 x8 : ffff80273088ca10\n[ 1669.941416] x7 : 000000000000001d x6 : 00000000ffffffff\n[ 1669.946702] x5 : ffff000008a36310 x4 : ffff80273088be00\n[ 1669.951989] x3 : ffff000009513e90 x2 : 0000000000000000\n[ 1669.957276] x1 : 00000000000000a0 x0 : ffffffff00000001\n[ 1669.962563] Call trace:\n[ 1669.965000] down_write+0x24/0x70\n[ 1669.968301] debugfs_remove_recursive+0x5c/0x1b0\n[ 1669.972905] hisi_sas_debugfs_exit+0x24/0x30 [hisi_sas_main]\n[ 1669.978541] hisi_sas_v3_remove+0x130/0x150 [hisi_sas_v3_hw]\n[ 1669.984175] pci_device_remove+0x48/0xd8\n[ 1669.988082] device_release_driver_internal+0x1b4/0x250\n[ 1669.993282] device_release_driver+0x28/0x38\n[ 1669.997534] pci_stop_bus_device+0x84/0xb8\n[ 1670.001611] pci_stop_and_remove_bus_device_locked+0x24/0x40\n[ 1670.007244] remove_store+0xfc/0x140\n[ 1670.010802] dev_attr_store+0x44/0x60\n[ 1670.014448] sysfs_kf_write+0x58/0x80\n[ 1670.018095] kernfs_fop_write+0xe8/0x1f0\n[ 1670.022000] __vfs_write+0x60/0x190\n[ 1670.025472] vfs_write+0xac/0x1c0\n[ 1670.028771] ksys_write+0x6c/0xd8\n[ 1670.032071] __arm64_sys_write+0x24/0x30\n[ 1670.035977] el0_svc_common+0x78/0x130\n[ 1670.039710] el0_svc_handler+0x38/0x78\n[ 1670.043442] el0_svc+0x8/0xc\n\nTo fix this, set debugfs_dir to NULL after debugfs_remove_recursive().", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "47caad1577cd7a39e2048c5e4edbce4b863dc12b", "status": "affected", "versionType": "git", "lessThan": "f0bfc8a5561fb0b2c48183dcbfe00bdd6d973bd3" }, { "version": "47caad1577cd7a39e2048c5e4edbce4b863dc12b", "status": "affected", "versionType": "git", "lessThan": "33331b265aac9441ac0c1a5442e3f05d038240ec" }, { "version": "47caad1577cd7a39e2048c5e4edbce4b863dc12b", "status": "affected", "versionType": "git", "lessThan": "75a2656260fe8c7eeabda6ff4600b29e183f48db" }, { "version": "47caad1577cd7a39e2048c5e4edbce4b863dc12b", "status": "affected", "versionType": "git", "lessThan": "b4465009e7d60c6111946db4c8f1e50d401ed7be" }, { "version": "47caad1577cd7a39e2048c5e4edbce4b863dc12b", "status": "affected", "versionType": "git", "lessThan": "6de426f9276c448e2db7238911c97fb157cb23be" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.5", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.5" }, { "version": "5.15.140", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.64", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.5.13", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.5.*" }, { "version": "6.6.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.7", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }