HighFix available
f2fs: limit recovery filename logging to stored length
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: f2fs: limit recovery filename logging to stored length F2FS stores recovery filenames as a length plus a fixed-size i_name buffer. The buffer is not NUL-terminated, but recover_inode() and recover_dentry() print it with %s. For a 255-byte filename, recovery logging can read past i_name into the following raw inode fields. Print the name with a precision bounded by i_namelen and F2FS_NAME_LEN.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.273, 5.15.224, 6.1.191, 6.12.112, 6.18.53, 6.6.160, 7.2.5
- CVEs
- CVE-2026-89838
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 4 Nov 2026, 20:33 UTC · Revision 1
Source evidence
f2fs: limit recovery filename logging to stored length
core-osv · Original sourcePublished 16 Sept 2026, 10:31 UTC
In the Linux kernel, the following vulnerability has been resolved: f2fs: limit recovery filename logging to stored length F2FS stores recovery filenames as a length plus a fixed-size i_name buffer. The buffer is not NUL-terminated, but recover_inode() and recover_dentry() print it with %s. For a 255-byte filename, recovery logging can read past i_name into the following raw inode fields. Print the name with a precision bounded by i_namelen and F2FS_NAME_LEN.
osv:CVE-2026-89838
Kernel
Fixed versions: 5.10.273, 5.15.224, 6.1.191, 6.6.160, 6.12.112, 6.18.53, 7.2.5
Complete source record
{
"id": "20dd104deaaa96a77cb15d655623e802fe5ac2246006871f38e937fea690ae8f",
"url": "https://osv.dev/vulnerability/CVE-2026-89838",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "f2fs: limit recovery filename logging to stored length",
"summary": "In the Linux kernel, the following vulnerability has been resolved: f2fs: limit recovery filename logging to stored length F2FS stores recovery filenames as a length plus a fixed-size i_name buffer. The buffer is not NUL-terminated, but recover_inode() and recover_dentry() print it with %s. For a 255-byte filename, recovery logging can read past i_name into the following raw inode fields. Print the name with a precision bounded by i_namelen and F2FS_NAME_LEN.",
"evidence": "osv:CVE-2026-89838",
"products": [
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"name": {
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"evidence": "/affected/1/package/name"
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"prerequisites": [],
"fixed_versions": [
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"value": "5.10.273",
"evidence": "/affected/1/ranges"
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{
"value": "5.15.224",
"evidence": "/affected/1/ranges"
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{
"value": "6.1.191",
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{
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{
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"affected_versions": []
}
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"severity": "high",
"structured": {
"id": "CVE-2026-89838",
"aliases": [
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"metrics": [
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"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H"
}
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"affected": [
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{
"ranges": [
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{
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{
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{
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},
{
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"events": [
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{
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"events": [
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{
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{
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{
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],
"package": {
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"ecosystem": "Linux"
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"database_specific": {
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],
"modified": "2026-11-01T02:30:40.165229362Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/01027b2fcb74dade59fb833b51023f6593b6a9a2",
"https://git.kernel.org/stable/c/317d32e1a8deaf1c01c388badc667334c39e62ca",
"https://git.kernel.org/stable/c/35c5abccd0924b02ad34126f562d93c8d75b0831",
"https://git.kernel.org/stable/c/3d02c7c8446f5d6793ac67f93bf3f84bf24e3f25",
"https://git.kernel.org/stable/c/450ab2e5dbe0ef6e3ed73214256565f6f003d62a",
"https://git.kernel.org/stable/c/7ab1780074943508534343e1e5e5ab0c9ef9dd7b",
"https://git.kernel.org/stable/c/b8ac8b14b9d92dd2e1cb05fa8994f41f701fbf28",
"https://git.kernel.org/stable/c/e754120f8ede55cc773ade108cf7e5b17c859c46",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89838.json",
"https://nvd.nist.gov/vuln/detail/CVE-2026-89838",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89838.json"
}
},
"related_cves": [
{
"value": "CVE-2026-89838",
"evidence": "/id"
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],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 506723,
"published_at": "2026-09-16T10:31:12.746+00:00"
}