Unrated
isofs: handle set_blocksize failures
Type: advisorySources: Official CVE List
In the Linux kernel, the following vulnerability has been resolved: isofs: handle set_blocksize failures isofs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.
- Products
- Linux
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-98879
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 29 Oct 2026, 18:03 UTC · Revision 2
Source evidence
In the Linux kernel, the following vulnerability has been resolved: isofs: handle set_blocksize failures isofs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.
cve:CVE-2026-98879
Linux
Fixed versions: Not specified
Linux
Fixed versions: Not specified
Complete source record
{
"id": "4d0fa37a0488022374fe771f9c216a1aab278d3294e3d897e1e2428db63c05b6",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-98879",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "isofs: handle set_blocksize failures",
"summary": "In the Linux kernel, the following vulnerability has been resolved: isofs: handle set_blocksize failures isofs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting we will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.",
"evidence": "cve:CVE-2026-98879",
"products": [
{
"name": {
"value": "Linux",
"evidence": "/containers/cna/affected/0/product"
},
"prerequisites": [],
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{
"name": {
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"evidence": "/containers/cna/affected/1/product"
},
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"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CVE-2026-98879",
"aliases": [
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],
"metrics": [],
"affected": [
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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"versions": [
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"status": "affected",
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"programFiles": [
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{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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"versions": [
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{
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"version": "0",
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{
"status": "unaffected",
"version": "5.10.271",
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"lessThanOrEqual": "5.10.*"
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{
"status": "unaffected",
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{
"status": "unaffected",
"version": "6.1.189",
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},
{
"status": "unaffected",
"version": "6.6.158",
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"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
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},
{
"status": "unaffected",
"version": "6.18.53",
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"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
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],
"programFiles": [
"fs/isofs/inode.c"
],
"defaultStatus": "affected"
}
],
"modified": "2026-10-26T06:56:02.033Z",
"provider": "cve",
"references": [
"https://git.kernel.org/stable/c/6db7f0ba365786304558db6a3d52013ae176e03e",
"https://git.kernel.org/stable/c/61f277bf35f533b602984f0e55900111fe52f31a",
"https://git.kernel.org/stable/c/cebde6d88e34396c29f2f001d90e921677cc17d6",
"https://git.kernel.org/stable/c/28d1f6aa14f5924e36602b7a31c9141d34de0b9c",
"https://git.kernel.org/stable/c/9c97e3b1152d3092581745189f5d2f04c6404ef9",
"https://git.kernel.org/stable/c/9584ab6283721e5aab485c79bd06c2f78d89e55c",
"https://git.kernel.org/stable/c/25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32"
],
"provider_metadata": {
"cna": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-26T06:56:02.033Z"
}
}
},
"related_cves": [
{
"value": "CVE-2026-98879",
"evidence": "/cveMetadata/cveId"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-cve",
"document_id": 263337,
"published_at": "2026-10-23T11:37:28.048+00:00"
}