nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors The error handling in nilfs_empty_dir() when a directory folio/page read fails is incorrect, as in the old ext2 implementation, and if the folio/page cannot be read or nilfs_check_folio() fails, it will falsely determine the directory as empty and corrupt the file system. In addition, since nilfs_empty_dir() does not immediately return on a failed folio/page read, but continues to loop, this can cause a long loop with I/O if i_size of the directory's inode is also corrupted, causing the log writer thread to wait and hang, as reported by syzbot. Fix these issues by making nilfs_empty_dir() immediately return a false value (0) if it fails to get a directory folio/page.
CVE-2024-39469
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-2024-39469
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": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "2ac8a2fe22bdde9eecce2a42cf5cab79333fb428",
"versionType": "git"
},
{
"status": "affected",
"version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "405b71f1251e5ae865f53bd27c45114e6c83bee3",
"versionType": "git"
},
{
"status": "affected",
"version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "c77ad608df6c091fe64ecb91f41ef7cb465587f1",
"versionType": "git"
},
{
"status": "affected",
"version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "11a2edb70356a2202dcb7c9c189c8356ab4752cd",
"versionType": "git"
},
{
"status": "affected",
"version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "129dcd3e7d036218db3f59c82d82004b9539ed82",
"versionType": "git"
},
{
"status": "affected",
"version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "d18b05eda7fa77f02114f15b02c009f28ee42346",
"versionType": "git"
},
{
"status": "affected",
"version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "59f14875a96ef93f05b82ad3c980605f2cb444b5",
"versionType": "git"
},
{
"status": "affected",
"version": "2ba466d74ed74f073257f86e61519cb8f8f46184",
"lessThan": "7373a51e7998b508af7136530f3a997b286ce81c",
"versionType": "git"
}
],
"programFiles": [
"fs/nilfs2/dir.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.30"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.30",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "4.19.317",
"versionType": "semver",
"lessThanOrEqual": "4.19.*"
},
{
"status": "unaffected",
"version": "5.4.279",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.221",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.162",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.95",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.35",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.9.5",
"versionType": "semver",
"lessThanOrEqual": "6.9.*"
},
{
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/nilfs2/dir.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-39469
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #26628 · Revision 1
- Added to Heist Feed
- Publisher date