{ "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-2023-53035", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53035", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-05-02T15:54:54.876Z", "updatedAt": "2026-05-11T19:37:18.401Z", "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": "nilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy()\n\nThe ioctl helper function nilfs_ioctl_wrap_copy(), which exchanges a\nmetadata array to/from user space, may copy uninitialized buffer regions\nto user space memory for read-only ioctl commands NILFS_IOCTL_GET_SUINFO\nand NILFS_IOCTL_GET_CPINFO.\n\nThis can occur when the element size of the user space metadata given by\nthe v_size member of the argument nilfs_argv structure is larger than the\nsize of the metadata element (nilfs_suinfo structure or nilfs_cpinfo\nstructure) on the file system side.\n\nKMSAN-enabled kernels detect this issue as follows:\n\n BUG: KMSAN: kernel-infoleak in instrument_copy_to_user\n include/linux/instrumented.h:121 [inline]\n BUG: KMSAN: kernel-infoleak in _copy_to_user+0xc0/0x100 lib/usercopy.c:33\n instrument_copy_to_user include/linux/instrumented.h:121 [inline]\n _copy_to_user+0xc0/0x100 lib/usercopy.c:33\n copy_to_user include/linux/uaccess.h:169 [inline]\n nilfs_ioctl_wrap_copy+0x6fa/0xc10 fs/nilfs2/ioctl.c:99\n nilfs_ioctl_get_info fs/nilfs2/ioctl.c:1173 [inline]\n nilfs_ioctl+0x2402/0x4450 fs/nilfs2/ioctl.c:1290\n nilfs_compat_ioctl+0x1b8/0x200 fs/nilfs2/ioctl.c:1343\n __do_compat_sys_ioctl fs/ioctl.c:968 [inline]\n __se_compat_sys_ioctl+0x7dd/0x1000 fs/ioctl.c:910\n __ia32_compat_sys_ioctl+0x93/0xd0 fs/ioctl.c:910\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\n Uninit was created at:\n __alloc_pages+0x9f6/0xe90 mm/page_alloc.c:5572\n alloc_pages+0xab0/0xd80 mm/mempolicy.c:2287\n __get_free_pages+0x34/0xc0 mm/page_alloc.c:5599\n nilfs_ioctl_wrap_copy+0x223/0xc10 fs/nilfs2/ioctl.c:74\n nilfs_ioctl_get_info fs/nilfs2/ioctl.c:1173 [inline]\n nilfs_ioctl+0x2402/0x4450 fs/nilfs2/ioctl.c:1290\n nilfs_compat_ioctl+0x1b8/0x200 fs/nilfs2/ioctl.c:1343\n __do_compat_sys_ioctl fs/ioctl.c:968 [inline]\n __se_compat_sys_ioctl+0x7dd/0x1000 fs/ioctl.c:910\n __ia32_compat_sys_ioctl+0x93/0xd0 fs/ioctl.c:910\n do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline]\n __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178\n do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203\n do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246\n entry_SYSENTER_compat_after_hwframe+0x70/0x82\n\n Bytes 16-127 of 3968 are uninitialized\n ...\n\nThis eliminates the leak issue by initializing the page allocated as\nbuffer using get_zeroed_page().", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "a94932381e8dae4117e9129b3c1282e18aa97b05" }, { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "9c5034e9a0e03db8d5e9eabb176340259b5b97e4" }, { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "8f5cbf6a8c0e19b062b829c5b7aca01468bb57f6" }, { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "d18db946cc6a394291539e030df32324285648f7" }, { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "5bb105cc72beb9d51bf12f5c657336d2d35bdc5d" }, { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "5f33b042f74fc9662eba17f4cd19b07d84bbc6c5" }, { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "8a6550b365c0ce2e65905de57dcbfe1f7d629726" }, { "version": "003ff182fddde09ddfb8d079bbdb02f9d2122082", "status": "affected", "versionType": "git", "lessThan": "003587000276f81d0114b5ce773d80c119d8cb30" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.31", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.31" }, { "version": "4.14.312", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.280", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.240", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.177", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.105", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.22", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.2.9", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.2.*" }, { "version": "6.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }