Not yet scoredPublished Oct 23, 2026

CVE-2026-98879isofs: handle set_blocksize failures

Updated under an hour ago (Oct 27, 2026, 3:10 PM ET)

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 26, 2026
First seen by InfoSec Signals: Oct 23, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 6db7f0ba365786304558db6a3d52013ae176e03e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 61f277bf35f533b602984f0e55900111fe52f31a; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before cebde6d88e34396c29f2f001d90e921677cc17d6; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 28d1f6aa14f5924e36602b7a31c9141d34de0b9c; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 9c97e3b1152d3092581745189f5d2f04c6404ef9; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 9584ab6283721e5aab485c79bd06c2f78d89e55c; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.