GHSA-QV9P-MJRR-3VMM
Vulnerability from github – Published: 2025-12-09 18:30 – Updated: 2025-12-09 18:30In the Linux kernel, the following vulnerability has been resolved:
nilfs2: fix infinite loop in nilfs_mdt_get_block()
If the disk image that nilfs2 mounts is corrupted and a virtual block address obtained by block lookup for a metadata file is invalid, nilfs_bmap_lookup_at_level() may return the same internal return code as -ENOENT, meaning the block does not exist in the metadata file.
This duplication of return codes confuses nilfs_mdt_get_block(), causing it to read and create a metadata block indefinitely.
In particular, if this happens to the inode metadata file, ifile, semaphore i_rwsem can be left held, causing task hangs in lock_mount.
Fix this issue by making nilfs_bmap_lookup_at_level() treat virtual block address translation failures with -ENOENT as metadata corruption instead of returning the error code.
{
"affected": [],
"aliases": [
"CVE-2023-53845"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-09T16:17:24Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnilfs2: fix infinite loop in nilfs_mdt_get_block()\n\nIf the disk image that nilfs2 mounts is corrupted and a virtual block\naddress obtained by block lookup for a metadata file is invalid,\nnilfs_bmap_lookup_at_level() may return the same internal return code as\n-ENOENT, meaning the block does not exist in the metadata file.\n\nThis duplication of return codes confuses nilfs_mdt_get_block(), causing\nit to read and create a metadata block indefinitely.\n\nIn particular, if this happens to the inode metadata file, ifile,\nsemaphore i_rwsem can be left held, causing task hangs in lock_mount.\n\nFix this issue by making nilfs_bmap_lookup_at_level() treat virtual block\naddress translation failures with -ENOENT as metadata corruption instead\nof returning the error code.",
"id": "GHSA-qv9p-mjrr-3vmm",
"modified": "2025-12-09T18:30:33Z",
"published": "2025-12-09T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53845"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/25457d07c8146e57d28906c663def033dc425af6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/34c5f17222b50c79848bb03ec8811648813e6a45"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5b29661669cb65b9750a3cf70ed3eaf947b92167"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8a89d36a07afe1ed4564df51fefa2bb556c85412"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8d07d9119642ba43d21f8ba64d51d01931096b20"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a6a491c048882e7e424d407d32cba0b52d9ef2bf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cfb0bb4fbd40c1f06da7e9f88c0a2d46155b90c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d536f9976bb04e9c84cf80045a9355975e418f41"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fe1cbbcb1a2532ee1654e1ff121be8906d83c6f0"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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