f2fs: fix to avoid dirent corruption
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]
CVE-2023-52444
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2023-52444
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "02160112e6d45c2610b049df6eb693d7a2e57b46",
"versionType": "git"
},
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "5624a3c1b1ebc8991318e1cce2aa719542991024",
"versionType": "git"
},
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "6f866885e147d33efc497f1095f35b2ee5ec7310",
"versionType": "git"
},
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "f100ba617d8be6c98a68f3744ef7617082975b77",
"versionType": "git"
},
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "f0145860c20be6bae6785c7a2249577674702ac7",
"versionType": "git"
},
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "d3c0b49aaa12a61d560528f5d605029ab57f0728",
"versionType": "git"
},
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "2fb4867f4405aea8c0519d7d188207f232a57862",
"versionType": "git"
},
{
"status": "affected",
"version": "7e01e7ad746bc8198a8b46163ddc73a1c7d22339",
"lessThan": "53edb549565f55ccd0bdf43be3d66ce4c2d48b28",
"versionType": "git"
}
],
"programFiles": [
"fs/f2fs/namei.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.306",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.268",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.209",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.148",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.75",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.14",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.7.2",
"versionType": "semver",
"lessThanOrEqual": "6.7.*"
},
{
"status": "unaffected",
"version": "6.8",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/f2fs/namei.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2023-52444
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26376 · Revision 1
- Added to Heist Feed
- Publisher date