CVE-2026-90434

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < dbcc7d1b818162aeab2e97fd217d86546d9fde15affected
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < ec33e6b7a1de20d7e623b12633191a855445657daffected
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < 0c2c54a7d174edc845f7bae24179fe72a926d10faffected
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < 5677737c2cedf417c0fcf61540b9cef0e62273d4affected
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < f2a1611065c700a374b31c5cc8a7587f5e3bfe73affected
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < 106e1a3b2b3454fbda63a59e9290cb9a253f81aaaffected
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < 3371d30a97a257b7b5f2c8009612e9d452180f0aaffected
LinuxLinux59bc055211b8d266ab6089158058bf8268e02006 < 2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9eaffected
LinuxLinux2.6.33affected
LinuxLinux0 < 2.6.33unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References