Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to avoid use-after-free on dic Call trace: __memcpy+0x128/0x250 f2fs_read_multi_pages+0x940/0xf7c f2fs_mpage_readpages+0x5a8/0x624 f2fs_readahead+0x5c/0x110 page_cache_ra_unbounded+0x1b8/0x590 do_sync_mmap_readahead+0x1dc/0x2e4 filemap_fault+0x254/0xa8c f2fs_filemap_fault+0x2c/0x104 __do_fault+0x7c/0x238 do_handle_mm_fault+0x11bc/0x2d14 do_mem_abort+0x3a8/0x1004 el0_da+0x3c/0xa0 el0t_64_sync_handler+0xc4/0xec el0t_64_sync+0x1b4/0x1b8 In f2fs_read_multi_pages(), once f2fs_decompress_cluster() was called if we hit cached page in compress_inode's cache, dic may be released, it needs break the loop rather than continuing it, in order to avoid accessing invalid dic pointer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6ce19aff0b8cd386860855185c6cd79337fc4d2b before 8c4504cc0c64862740a6acb301e0cfa59580dbc5; affected 6ce19aff0b8cd386860855185c6cd79337fc4d2b before 9375ea7f269093d7c884857ae1f47633a91f429c; affected 6ce19aff0b8cd386860855185c6cd79337fc4d2b before 932ddb5c29e884cc6fac20417ece72ba4a35c401; affected 6ce19aff0b8cd386860855185c6cd79337fc4d2b before 9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2; affected 6ce19aff0b8cd386860855185c6cd79337fc4d2b before b0327c84e91a0f4f0abced8cb83ec86a7083f086; affected a23706426da9b611be5beae0f3faa260fb453b4e; affected 5.13.19 before 5.14 |
| Linux / Linux | affected 5.14; unaffected 0 before 5.14; unaffected 5.15.139 through 5.15.*; unaffected 6.1.63 through 6.1.*; unaffected 6.5.12 through 6.5.*; unaffected 6.6.2 through 6.6.*; unaffected 6.7 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/8c4504cc0c64862740a6acb301e0cfa59580dbc5
- https://git.kernel.org/stable/c/9375ea7f269093d7c884857ae1f47633a91f429c
- https://git.kernel.org/stable/c/932ddb5c29e884cc6fac20417ece72ba4a35c401
- https://git.kernel.org/stable/c/9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2
- https://git.kernel.org/stable/c/b0327c84e91a0f4f0abced8cb83ec86a7083f086
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/8c4504cc0c64862740a6acb301e0cfa59580dbc5
- https://git.kernel.org/stable/c/9375ea7f269093d7c884857ae1f47633a91f429c
- https://git.kernel.org/stable/c/932ddb5c29e884cc6fac20417ece72ba4a35c401
- https://git.kernel.org/stable/c/9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2
- https://git.kernel.org/stable/c/b0327c84e91a0f4f0abced8cb83ec86a7083f086