CVE-2026-97487

jfs: 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: jfs: handle set_blocksize failures jfs 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.

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 05107f5602751fcfd3d108c1f579eb45aabead52 (fixed)

Vendor states this is fixed in 153374ee67a458c77b5755d3cc57fbdc639d327e (fixed)

Vendor states this is fixed in 87d6852f06c5a29f757f7b7ad1423e4cbd0f2cad (fixed)

Vendor states this is fixed in a0ac22af8acca6ea6c57aff72662086cb3243b1c (fixed)

Vendor states this is fixed in a0eaa3f4b6dcc829228752f6255f0e45cc94b273 (fixed)

Vendor states this is fixed in deb9400a38849e03210c9169b777e89e74debe96 (fixed)

Vendor states this is fixed in e2712fa5c02cd1b3e40d45bc8ce581f3c67bf4b4 (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)