{"id":"CVE-2026-98686","published":"2026-10-18T16:17:21.993","lastModified":"2026-10-19T10:19:33.010","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: discard post-EOF pagecache when extending a file via zero range\n\nsmb3_zero_range() removed the pagecache only for the range being zeroed,\nso when it extends the file the folio straddling the old EOF - which may\nhold data dirtied past EOF through an mmap - was never dropped and became\nvisible as file content once the file was extended.\n\nLower the discard boundary to the smaller of the zero-range offset and the\nold EOF.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/6a8279c98ad289b27c0bdb11adb3f0c0b7fd456d","tags":[]},{"url":"https://git.kernel.org/stable/c/94949b6b2f2bf0dba2e8786aed0b08cc6bc3a183","tags":[]},{"url":"https://git.kernel.org/stable/c/b75dadb50a25eed525264bf6fea44fad94e7626f","tags":[]},{"url":"https://git.kernel.org/stable/c/da4fe97fb6c730d9c94a115c7bfa6f98e0d578d0","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}