CVE-2026-97486

hpfs: handle set_blocksize failures

N/A

Published: September 24, 2026 at 04:04 PM UTC

Updated: October 3, 2026 at 11:17 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: hpfs: handle set_blocksize failures hpfs uses buffer_heads, which don't handle block size > PAGE_SIZE well. Without this, mounting will hit the BUG_ON(offset >= folio_size(folio)); in folio_set_bh on the first __bread_gfp call.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.12 ≤ v < 5.10.2712.6.12 ≤ v < 5.15.2222.6.12 ≤ v < 6.1.1892.6.12 ≤ v < 6.12.1112.6.12 ≤ v < 6.18.532.6.12 ≤ v < 6.6.1582.6.12 ≤ v < 7.21da177e4c3f41524e886b7f1b8a0c1fc7321cac2 2.6.12

Vendor states this is fixed in 0451927f42b0282d80d402e8e8c46ff34e9f606f (fixed)

Vendor states this is fixed in 10f226687bcb07ed925a453b6f25e817165d113b (fixed)

Vendor states this is fixed in a405996f23e04942aad064ab8d50c55827482872 (fixed)

Vendor states this is fixed in b618f681acb6748faf95eee9af2aac5455a74e68 (fixed)

Vendor states this is fixed in f27e21cf3c0446a3536ea9b588a78a46b0a2cb66 (fixed)

Vendor states this is fixed in f7b0cde62edb8ceff8bcc17ba3f1b086646fff89 (fixed)

Vendor states this is fixed in fc79fcc78cb771f2a803e52149cac5ca9050fd05 (fixed)

Vendor states this is fixed in 2.6.12 (unaffected)

Vendor states this is fixed in 5.10.271 (unaffected)

Vendor states this is fixed in 5.15.222 (unaffected)

Vendor states this is fixed in 6.1.189 (unaffected)

Vendor states this is fixed in 6.12.111 (unaffected)