exfat: fix the infinite loop in exfat_readdir()
In the Linux kernel, the following vulnerability has been resolved: exfat: fix the infinite loop in exfat_readdir() If the file system is corrupted so that a cluster is linked to itself in the cluster chain, and there is an unused directory entry in the cluster, 'dentry' will not be incremented, causing condition 'dentry < max_dentries' unable to prevent an infinite loop. This infinite loop causes s_lock not to be released, and other tasks will hang, such as exfat_sync_fs(). This commit stops traversing the cluster chain when there is unused directory entry in the cluster to avoid this infinite loop.
CVE-2024-57940
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-2024-57940
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": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"lessThan": "d8cfbb8723bd3d3222f360227a1cc15227189ca6",
"versionType": "git"
},
{
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"lessThan": "28c21f0ac5293a4bf19b3e0e32005d6dd31a6c17",
"versionType": "git"
},
{
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"lessThan": "31beabd0f47f8c3ed9965ba861c9e5b252d4920a",
"versionType": "git"
},
{
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"lessThan": "dc1d7afceb982e8f666e70a582e6b5aa806de063",
"versionType": "git"
},
{
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"lessThan": "d9ea94f5cd117d56e573696d0045ab3044185a15",
"versionType": "git"
},
{
"status": "affected",
"version": "ca06197382bde0a3bc20215595d1c9ce20c6e341",
"lessThan": "fee873761bd978d077d8c55334b4966ac4cb7b59",
"versionType": "git"
}
],
"programFiles": [
"fs/exfat/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": "5.7"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.7",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.234",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.177",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.125",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.72",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.10",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/exfat/dir.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-57940
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26851 · Revision 1
- Added to Heist Feed
- Publisher date