CVE-2023-52444
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
f2fs: fix to avoid dirent corruption
As Al reported in link[1]:
f2fs_rename() … if (old_dir != new_dir && !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); else f2fs_put_page(old_dir_page, 0);
You want correct inumber in the ".." link. And cross-directory rename does move the source to new parent, even if you'd been asked to leave a whiteout in the old place.
[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/
With below testcase, it may cause dirent corruption, due to it missed to call f2fs_set_link() to update ".." link to new directory.
- mkdir -p dir/foo
- renameat2 -w dir/foo bar
[ASSERT] (__chk_dots_dentries:1421) –> Bad inode number[0x4] for '..', parent parent ino is [0x3] [FSCK] other corrupted bugs [Fail]
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < 02160112e6d45c2610b049df6eb693d7a2e57b46 | affected |
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < 5624a3c1b1ebc8991318e1cce2aa719542991024 | affected |
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < 6f866885e147d33efc497f1095f35b2ee5ec7310 | affected |
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < f100ba617d8be6c98a68f3744ef7617082975b77 | affected |
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < f0145860c20be6bae6785c7a2249577674702ac7 | affected |
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < d3c0b49aaa12a61d560528f5d605029ab57f0728 | affected |
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < 2fb4867f4405aea8c0519d7d188207f232a57862 | affected |
| Linux | Linux | 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 < 53edb549565f55ccd0bdf43be3d66ce4c2d48b28 | affected |
| Linux | Linux | 4.2 | affected |
| Linux | Linux | 0 < 4.2 | unaffected |
| Linux | Linux | 4.19.306 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.268 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.209 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.148 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.75 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.14 <= 6.6.* | unaffected |
| Linux | Linux | 6.7.2 <= 6.7.* | unaffected |
| Linux | Linux | 6.8 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46
- https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024
- https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310
- https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77
- https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7
- https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728
- https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862
- https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
References
- https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46
- https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024
- https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310
- https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77
- https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7
- https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728
- https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862
- https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28
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