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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 6db7f0ba365786304558db6a3d52013ae176e03e
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 61f277bf35f533b602984f0e55900111fe52f31a
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < cebde6d88e34396c29f2f001d90e921677cc17d6
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 28d1f6aa14f5924e36602b7a31c9141d34de0b9c
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 9c97e3b1152d3092581745189f5d2f04c6404ef9
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 9584ab6283721e5aab485c79bd06c2f78d89e55c
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32
0 affected < 5.10.271
0 affected < 5.15.222
0 affected < 6.1.189
0 affected < 6.6.158
0 affected < 6.12.111
0 affected < 6.18.53
Linux Linux affected
Version Status Constraints
5.10.271 unaffected ≤ 5.10.*
5.15.222 unaffected ≤ 5.15.*
6.1.189 unaffected ≤ 6.1.*
6.6.158 unaffected ≤ 6.6.*
6.12.111 unaffected ≤ 6.12.*
6.18.53 unaffected ≤ 6.18.*
7.2 unaffected ≤ *

No data.

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32 cve-icon cve-icon
https://git.kernel.org/stable/c/28d1f6aa14f5924e36602b7a31c9141d34de0b9c cve-icon cve-icon
https://git.kernel.org/stable/c/61f277bf35f533b602984f0e55900111fe52f31a cve-icon cve-icon
https://git.kernel.org/stable/c/6db7f0ba365786304558db6a3d52013ae176e03e cve-icon cve-icon
https://git.kernel.org/stable/c/9584ab6283721e5aab485c79bd06c2f78d89e55c cve-icon cve-icon
https://git.kernel.org/stable/c/9c97e3b1152d3092581745189f5d2f04c6404ef9 cve-icon cve-icon
https://git.kernel.org/stable/c/cebde6d88e34396c29f2f001d90e921677cc17d6 cve-icon cve-icon
History

Fri, 23 Oct 2026 12:00:00 +0000

Type Values Removed Values Added
Description 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.
Title isofs: handle set_blocksize failures
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-10-23T11:37:28.048Z

Reserved: 2026-09-25T10:25:14.377Z

Link: CVE-2026-98879

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-23T12:18:21.440

Modified: 2026-10-23T12:18:21.440

Link: CVE-2026-98879

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.