| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "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": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/nilfs2/ioctl.c" |
| ], |
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| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "fs/nilfs2/ioctl.c" |
| ], |
| "versions": [ |
| { |
| "version": "4.14.312", |
| "lessThanOrEqual": "4.14.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
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| }, |
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| "lessThanOrEqual": "5.4.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.10.177", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.15.105", |
| "lessThanOrEqual": "5.15.*", |
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| }, |
| { |
| "version": "6.1.22", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.2.9", |
| "lessThanOrEqual": "6.2.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.3", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
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| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/a94932381e8dae4117e9129b3c1282e18aa97b05" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/9c5034e9a0e03db8d5e9eabb176340259b5b97e4" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8f5cbf6a8c0e19b062b829c5b7aca01468bb57f6" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/d18db946cc6a394291539e030df32324285648f7" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5bb105cc72beb9d51bf12f5c657336d2d35bdc5d" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/5f33b042f74fc9662eba17f4cd19b07d84bbc6c5" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/8a6550b365c0ce2e65905de57dcbfe1f7d629726" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/003587000276f81d0114b5ce773d80c119d8cb30" |
| } |
| ], |
| "title": "nilfs2: fix kernel-infoleak in nilfs_ioctl_wrap_copy()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2023-53035", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
