CVE-2026-97488

qnx4: 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: qnx4: handle set_blocksize failures qnx4 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 3f2088a3973faf3ed9b56ea3d3f0240b9a797016 (fixed)

Vendor states this is fixed in 60f7ccf669882262330171eda51a4f52fa2e69c9 (fixed)

Vendor states this is fixed in aac97a4b3f47c36a47f934aa679407b718b67537 (fixed)

Vendor states this is fixed in c7d911ea1cc9a63b07e52f5e75b263be0615b289 (fixed)

Vendor states this is fixed in c9f03e750d9ddf0f42c24e3ba683f26e377ffd72 (fixed)

Vendor states this is fixed in de8bd760ca0c2a3f337bbafbeb1dcad0853787cc (fixed)

Vendor states this is fixed in f83e416c2242fb298ad33b756c83aae75d9e359c (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)