CVE-2023-52444
Vulnerability from cvelistv5
Published
2024-02-22 16:21
Modified
2024-12-19 08:19
Severity ?
EPSS score ?
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]
References
Impacted products
Vendor | Product | Version | |||||
---|---|---|---|---|---|---|---|
▼ | Linux | Linux |
Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 Version: 7e01e7ad746bc8198a8b46163ddc73a1c7d22339 |
||||
|
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And cross-directory\nrename does move the source to new parent, even if you\u0027d been asked\nto leave a whiteout in the old place.\n\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\n\nWith below testcase, it may cause dirent corruption, due to it missed\nto call f2fs_set_link() to update \"..\" link to new directory.\n- mkdir -p dir/foo\n- renameat2 -w dir/foo bar\n\n[ASSERT] (__chk_dots_dentries:1421) --\u003e Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3]\n[FSCK] other corrupted bugs [Fail]" } ], "providerMetadata": { "dateUpdated": "2024-12-19T08:19:37.030Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/02160112e6d45c2610b049df6eb693d7a2e57b46" }, { "url": "https://git.kernel.org/stable/c/5624a3c1b1ebc8991318e1cce2aa719542991024" }, { "url": "https://git.kernel.org/stable/c/6f866885e147d33efc497f1095f35b2ee5ec7310" }, { "url": "https://git.kernel.org/stable/c/f100ba617d8be6c98a68f3744ef7617082975b77" }, { "url": "https://git.kernel.org/stable/c/f0145860c20be6bae6785c7a2249577674702ac7" }, { "url": "https://git.kernel.org/stable/c/d3c0b49aaa12a61d560528f5d605029ab57f0728" }, { "url": "https://git.kernel.org/stable/c/2fb4867f4405aea8c0519d7d188207f232a57862" }, { "url": "https://git.kernel.org/stable/c/53edb549565f55ccd0bdf43be3d66ce4c2d48b28" } ], "title": "f2fs: fix to avoid dirent corruption", "x_generator": { "engine": "bippy-5f407fcff5a0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2023-52444", "datePublished": "2024-02-22T16:21:37.043Z", "dateReserved": "2024-02-20T12:30:33.291Z", "dateUpdated": "2024-12-19T08:19:37.030Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2023-52444\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-22T17:15:08.430\",\"lastModified\":\"2024-11-21T08:39:46.620\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nf2fs: fix to avoid dirent corruption\\n\\nAs Al reported in link[1]:\\n\\nf2fs_rename()\\n...\\n\\tif (old_dir != new_dir \u0026\u0026 !whiteout)\\n\\t\\tf2fs_set_link(old_inode, old_dir_entry,\\n\\t\\t\\t\\t\\told_dir_page, new_dir);\\n\\telse\\n\\t\\tf2fs_put_page(old_dir_page, 0);\\n\\nYou want correct inumber in the \\\"..\\\" link. And cross-directory\\nrename does move the source to new parent, even if you\u0027d been asked\\nto leave a whiteout in the old place.\\n\\n[1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/\\n\\nWith below testcase, it may cause dirent corruption, due to it missed\\nto call f2fs_set_link() to update \\\"..\\\" link to new directory.\\n- mkdir -p dir/foo\\n- renameat2 -w dir/foo bar\\n\\n[ASSERT] (__chk_dots_dentries:1421) --\u003e Bad inode number[0x4] for \u0027..\u0027, parent parent ino is [0x3]\\n[FSCK] other corrupted bugs [Fail]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: f2fs: correcci\u00f3n para evitar corrupci\u00f3n directa Como inform\u00f3 Al en link[1]: f2fs_rename() ... if (old_dir != new_dir \u0026amp;\u0026amp; !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); dem\u00e1s f2fs_put_page(old_dir_page, 0); Quiere el n\u00famero correcto en el enlace \\\"..\\\" Y el cambio de nombre entre directorios mueve la fuente al nuevo padre, incluso si le hubieran pedido que dejara un espacio en blanco en el lugar anterior. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ Con el siguiente caso de prueba, puede causar corrupci\u00f3n directa, debido a que no llam\u00f3 a f2fs_set_link() para actualizar el enlace \\\"..\\\" al nuevo directorio . - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --\u0026gt; N\u00famero de inodo incorrecto [0x4] para \u0027..\u0027, el ino padre padre es [0x3] [FSCK] otro corrupto errores 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} }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.