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

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.

Timeline

1. Sep 16, 2026, 10:32 AM UTCCVE published
2. Oct 19, 2026, 8:55 AM UTCRecord last updated

Affected versions

• Linux Linux

  From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 68659b627770f3c8d8f578e8ddee78a07d5f1d0e; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 8640ade22369e248f77fbdd31a9d71b338499eef; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 21f063e3c2b11fb9078ccdfd3b23634313ce4f0c; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 62d88e93ef5e1e04041e347945f7d7510eba1797; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in bb10d54b74845eb4547baa1b9e908ecd32aa64e1; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 3e2691eeee83a819125dba3f42c74e1b6730d5cd; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 16a62a3f2128b3d86fefc082d8f631becd02bff5; From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 · fixed in 8b585431a16cfb9d8f2955a9fa0787ce3dceb3c2

• Linux Linux

  2.6.12

• KernelLinux

  From 2.6.12 · fixed in 5.10.270; From 5.11.0 · fixed in 5.15.221; From 5.16.0 · fixed in 6.1.188; From 6.2.0 · fixed in 6.6.157; From 6.7.0 · fixed in 6.12.110; From 6.13.0 · fixed in 6.18.51; From 6.19.0 · fixed in 7.2.5

References 8