CVE-2026-98879

isofs: handle set_blocksize failures

State: Published
Severity: Not scored
Published: Oct 23, 2026
Updated: Oct 26, 2026
Reserved: Sep 25, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6db7f0ba365786304558db6a3d52013ae176e03eAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 61f277bf35f533b602984f0e55900111fe52f31aAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before cebde6d88e34396c29f2f001d90e921677cc17d6Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 28d1f6aa14f5924e36602b7a31c9141d34de0b9cAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9c97e3b1152d3092581745189f5d2f04c6404ef9Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9584ab6283721e5aab485c79bd06c2f78d89e55cAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32Affected
LinuxLinux	2.6.12Affected before 2.6.12Not affected 5.10.271 through 5.10.Not affected 5.15.222 through 5.15.Not affected 6.1.189 through 6.1.Not affected 6.6.158 through 6.6.Not affected 6.12.111 through 6.12.Not affected 6.18.53 through 6.18.Not affected 7.2 and laterNot affected

Product

Versions

LinuxLinux

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6db7f0ba365786304558db6a3d52013ae176e03eAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 61f277bf35f533b602984f0e55900111fe52f31aAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before cebde6d88e34396c29f2f001d90e921677cc17d6Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 28d1f6aa14f5924e36602b7a31c9141d34de0b9cAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9c97e3b1152d3092581745189f5d2f04c6404ef9Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9584ab6283721e5aab485c79bd06c2f78d89e55cAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 25ef4c4d9f0e96fb89c0ae0d7127c3f12a31bc32Affected

LinuxLinux

2.6.12Affected
before 2.6.12Not affected
5.10.271 through 5.10.*Not affected
5.15.222 through 5.15.*Not affected
6.1.189 through 6.1.*Not affected
6.6.158 through 6.6.*Not affected
6.12.111 through 6.12.*Not affected
6.18.53 through 6.18.*Not affected
7.2 and laterNot affected

References

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