Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via clone range cifs_remap_file_range() discarded the pagecache only for the folios overlapping the destination region, so when a clone extends the file the folio straddling the old EOF - which may hold data dirtied past EOF through an mmap - was never dropped and became visible as file content once the file was extended. Start the discard at the smaller of fstart and the old EOF. i_size is still old here, so nothing past the old EOF is flushed to the server.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c54fc3a4f375663f2361a9cbb2955fb4ef912879 before 15bb9f1d3e967e328649e92a1451e60a0dc66118; affected c54fc3a4f375663f2361a9cbb2955fb4ef912879 before 4721587f96cb8de8164f3fd203093a0875560999; affected 358bd5f436d820bb758833050aae065b35d6986c; affected 43801359c8971cc49b4a4db5015fba77fbd09c32; affected 6.1.68 before 6.2; affected 6.6.7 before 6.7 |
| Linux / Linux | affected 6.7; unaffected 0 before 6.7; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.