{"id":"CVE-2026-64160","revision":"6c9aaafae87049899fa1ee369fa98664","records":[{"revision":"6c9aaafae87049899fa1ee369fa98664","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64160","aliases":[],"title":"netfs: Fix potential for tearing in ->remote_i_size and ->zero_point","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix potential for tearing in ->remote_i_size and ->zero_point\n\nFix potential tearing in using ->remote_i_size and ->zero_point by copying\ni_size_read() and i_size_write() and using the same seqcount as for i_size.\n\nWe need to make sure that netfslib and the filesystems that use it always\nhold i_lock whilst updating any of the sizes to prevent i_size_seqcount\nfrom getting corrupted.","state":0,"publishedAt":"2026-07-19T15:40:47.063+00:00","modifiedAt":"2026-10-19T20:28:14.119+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/9p/v9fs_vfs.h\",\n                        \"fs/9p/vfs_inode.c\",\n                        \"fs/9p/vfs_inode_dotl.c\",\n                        \"fs/afs/file.c\",\n                        \"fs/afs/inode.c\",\n                        \"fs/afs/internal.h\",\n                        \"fs/afs/write.c\",\n                        \"fs/netfs/buffered_read.c\",\n                        \"fs/netfs/buffered_write.c\",\n                        \"fs/netfs/direct_write.c\",\n                        \"fs/netfs/misc.c\",\n                        \"fs/netfs/write_collect.c\",\n                        \"fs/smb/client/cifsfs.c\",\n                        \"fs/smb/client/cifssmb.c\",\n                        \"fs/smb/client/file.c\",\n                        \"fs/smb/client/inode.c\",\n                        \"fs/smb/client/readdir.c\",\n                        \"fs/smb/client/smb2ops.c\",\n                        \"fs/smb/client/smb2pdu.c\",\n                        \"include/linux/netfs.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4058f742105ecfcbdf99e1139e6c1f74fb8e6db9\",\n                            \"lessThan\": \"55970f238d495517edc961d55c44c772594d0969\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4058f742105ecfcbdf99e1139e6c1f74fb8e6db9\",\n                            \"lessThan\": \"2c8f4742bb76117d735f92a3932d85239b16c494\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"fs/9p/v9fs_vfs.h\",\n                        \"fs/9p/vfs_inode.c\",\n                        \"fs/9p/vfs_inode_dotl.c\",\n                        \"fs/afs/file.c\",\n                        \"fs/afs/inode.c\",\n                        \"fs/afs/internal.h\",\n                        \"fs/afs/write.c\",\n                        \"fs/netfs/buffered_read.c\",\n                        \"fs/netfs/buffered_write.c\",\n                        \"fs/netfs/direct_write.c\",\n                        \"fs/netfs/misc.c\",\n                        \"fs/netfs/write_collect.c\",\n                        \"fs/smb/client/cifsfs.c\",\n                        \"fs/smb/client/cifssmb.c\",\n                        \"fs/smb/client/file.c\",\n                        \"fs/smb/client/inode.c\",\n                        \"fs/smb/client/readdir.c\",\n                        \"fs/smb/client/smb2ops.c\",\n                        \"fs/smb/client/smb2pdu.c\",\n                        \"include/linux/netfs.h\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.18\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.18\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.0.11\",\n                            \"lessThanOrEqual\": \"7.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8,"severity":"CRITICAL"}],"references":["https://git.kernel.org/stable/c/55970f238d495517edc961d55c44c772594d0969","https://git.kernel.org/stable/c/2c8f4742bb76117d735f92a3932d85239b16c494"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64160","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64160","identifiers":["CVE-2026-64160"]},"retained":false,"historicalAffected":[]}],"coverage":[]}