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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 22.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws-6.5 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 23.10 | noarch | linux-azure | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure-5.15 | < any | UNKNOWN |
ubuntu | 22.04 | noarch | linux-azure-6.5 | < any | UNKNOWN |
git.kernel.org/linus/b0327c84e91a0f4f0abced8cb83ec86a7083f086 (6.7-rc1)
git.kernel.org/stable/c/8c4504cc0c64862740a6acb301e0cfa59580dbc5
git.kernel.org/stable/c/932ddb5c29e884cc6fac20417ece72ba4a35c401
git.kernel.org/stable/c/9375ea7f269093d7c884857ae1f47633a91f429c
git.kernel.org/stable/c/9d065aa52b6ee1b06f9c4eca881c9b4425a12ba2
git.kernel.org/stable/c/b0327c84e91a0f4f0abced8cb83ec86a7083f086
launchpad.net/bugs/cve/CVE-2023-52852
nvd.nist.gov/vuln/detail/CVE-2023-52852
security-tracker.debian.org/tracker/CVE-2023-52852
www.cve.org/CVERecord?id=CVE-2023-52852