CVE-2026-89964

Summary

In the Linux kernel, the following vulnerability has been resolved:

parisc: eisa: Fix infinite loop when parsing invalid IRQ value

When an invalid value is passed via the "eisa_irq_edge=" kernel command line parameter (e.g. "eisa_irq_edge=16,5"), eisa_irq_setup() prints an error message and continues without advancing the current position. As a result the same invalid value is parsed again and again, causing an infinite loop while the kernel boots.

Advance to the next comma-separated entry, or stop parsing when there is no next entry, before continuing so that the remaining entries are processed normally.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 68659b627770f3c8d8f578e8ddee78a07d5f1d0eaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8640ade22369e248f77fbdd31a9d71b338499eefaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 21f063e3c2b11fb9078ccdfd3b23634313ce4f0caffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 62d88e93ef5e1e04041e347945f7d7510eba1797affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bb10d54b74845eb4547baa1b9e908ecd32aa64e1affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3e2691eeee83a819125dba3f42c74e1b6730d5cdaffected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 16a62a3f2128b3d86fefc082d8f631becd02bff5affected
LinuxLinux1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8b585431a16cfb9d8f2955a9fa0787ce3dceb3c2affected
LinuxLinux0 < 5.10.270affected
LinuxLinux0 < 5.15.221affected
LinuxLinux0 < 6.1.188affected
LinuxLinux0 < 6.6.157affected
LinuxLinux0 < 6.12.110affected
LinuxLinux0 < 6.18.51affected
LinuxLinux0 < 7.2.5affected
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
LinuxLinux6.18.51 <= 6.18.*unaffected
LinuxLinux7.2.5 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References