Answer in brief
CVE-2026-90434 records a Unknown severity vulnerability in isofs: release zisofs block pointer buffer head. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=59bc055211b8d266ab6089158058bf8268e02006 <dbcc7d1b818162aeab2e97fd217d86546d9fde15 || >=59bc055211b8d266ab6089158058bf8268e02006 <ec33e6b7a1de20d7e623b12633191a855445657d || >=59bc055211b8d266ab6089158058bf8268e02006 <0c2c54a7d174edc845f7bae24179fe72a926d10f || >=59bc055211b8d266ab6089158058bf8268e02006 <5677737c2cedf417c0fcf61540b9cef0e62273d4 || >=59bc055211b8d266ab6089158058bf8268e02006 <f2a1611065c700a374b31c5cc8a7587f5e3bfe73 || >=59bc055211b8d266ab6089158058bf8268e02006 <106e1a3b2b3454fbda63a59e9290cb9a253f81aa || >=59bc055211b8d266ab6089158058bf8268e02006 <3371d30a97a257b7b5f2c8009612e9d452180f0a || >=59bc055211b8d266ab6089158058bf8268e02006 <2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e | dbcc7d1b818162aeab2e97fd217d86546d9fde15, ec33e6b7a1de20d7e623b12633191a855445657d, 0c2c54a7d174edc845f7bae24179fe72a926d10f, 5677737c2cedf417c0fcf61540b9cef0e62273d4, f2a1611065c700a374b31c5cc8a7587f5e3bfe73, 106e1a3b2b3454fbda63a59e9290cb9a253f81aa, 3371d30a97a257b7b5f2c8009612e9d452180f0a, 2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e |
| Linux/Linuxgeneric | 2.6.33 | Not reported |
Published upstream
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 17, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 17, 2026
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.
Quoted source text, attributed separately from HOL analysis.