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CVE-2026-90434

isofs: release zisofs block pointer buffer head

N/A
Published: September 17, 2026 at 04:09 PM UTC
Updated: October 19, 2026 at 09:19 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: isofs: release zisofs block pointer buffer head zisofs_fill_pages() reads the compressed block pointer table. The error paths release the current buffer_head, the loop also releases the old buffer_head when it advances. However, the success path leaves the last buffer_head referenced. Release it before returning success.

Affected

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

Linux Kernel· Linux
90%
2.6.3359bc055211b8d266ab6089158058bf8268e02006
Vendor states this is fixed in 0c2c54a7d174edc845f7bae24179fe72a926d10f (fixed)
Vendor states this is fixed in 106e1a3b2b3454fbda63a59e9290cb9a253f81aa (fixed)
Vendor states this is fixed in 2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e (fixed)
Vendor states this is fixed in 3371d30a97a257b7b5f2c8009612e9d452180f0a (fixed)
Vendor states this is fixed in 5677737c2cedf417c0fcf61540b9cef0e62273d4 (fixed)
Vendor states this is fixed in dbcc7d1b818162aeab2e97fd217d86546d9fde15 (fixed)
Vendor states this is fixed in ec33e6b7a1de20d7e623b12633191a855445657d (fixed)
Vendor states this is fixed in f2a1611065c700a374b31c5cc8a7587f5e3bfe73 (fixed)
Vendor states this is fixed in 2.6.33 (unaffected)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/dbcc7d1b818162aeab2e97fd217d86546d9fde15
Source: cverecord
https://git.kernel.org/stable/c/ec33e6b7a1de20d7e623b12633191a855445657d
Source: cverecord
https://git.kernel.org/stable/c/0c2c54a7d174edc845f7bae24179fe72a926d10f
Source: cverecord
https://git.kernel.org/stable/c/5677737c2cedf417c0fcf61540b9cef0e62273d4
Source: cverecord
https://git.kernel.org/stable/c/f2a1611065c700a374b31c5cc8a7587f5e3bfe73
Source: cverecord
https://git.kernel.org/stable/c/106e1a3b2b3454fbda63a59e9290cb9a253f81aa
Source: cverecord
https://git.kernel.org/stable/c/3371d30a97a257b7b5f2c8009612e9d452180f0a
Source: cverecord
https://git.kernel.org/stable/c/2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e

Quick Info

StatusRECEIVED

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