CVE-2026-90434

isofs: release zisofs block pointer buffer head

State: Published
Severity: Not scored
Published: Sep 17, 2026
Updated: Oct 19, 2026
Reserved: Sep 11, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	59bc055211b8d266ab6089158058bf8268e02006 to before dbcc7d1b818162aeab2e97fd217d86546d9fde15Affected 59bc055211b8d266ab6089158058bf8268e02006 to before ec33e6b7a1de20d7e623b12633191a855445657dAffected 59bc055211b8d266ab6089158058bf8268e02006 to before 0c2c54a7d174edc845f7bae24179fe72a926d10fAffected 59bc055211b8d266ab6089158058bf8268e02006 to before 5677737c2cedf417c0fcf61540b9cef0e62273d4Affected 59bc055211b8d266ab6089158058bf8268e02006 to before f2a1611065c700a374b31c5cc8a7587f5e3bfe73Affected 59bc055211b8d266ab6089158058bf8268e02006 to before 106e1a3b2b3454fbda63a59e9290cb9a253f81aaAffected 59bc055211b8d266ab6089158058bf8268e02006 to before 3371d30a97a257b7b5f2c8009612e9d452180f0aAffected 59bc055211b8d266ab6089158058bf8268e02006 to before 2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9eAffected
LinuxLinux	2.6.33Affected before 2.6.33Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.52 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

59bc055211b8d266ab6089158058bf8268e02006 to before dbcc7d1b818162aeab2e97fd217d86546d9fde15Affected
59bc055211b8d266ab6089158058bf8268e02006 to before ec33e6b7a1de20d7e623b12633191a855445657dAffected
59bc055211b8d266ab6089158058bf8268e02006 to before 0c2c54a7d174edc845f7bae24179fe72a926d10fAffected
59bc055211b8d266ab6089158058bf8268e02006 to before 5677737c2cedf417c0fcf61540b9cef0e62273d4Affected
59bc055211b8d266ab6089158058bf8268e02006 to before f2a1611065c700a374b31c5cc8a7587f5e3bfe73Affected
59bc055211b8d266ab6089158058bf8268e02006 to before 106e1a3b2b3454fbda63a59e9290cb9a253f81aaAffected
59bc055211b8d266ab6089158058bf8268e02006 to before 3371d30a97a257b7b5f2c8009612e9d452180f0aAffected
59bc055211b8d266ab6089158058bf8268e02006 to before 2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9eAffected

LinuxLinux

2.6.33Affected
before 2.6.33Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.52 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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