In the Linux kernel, the following vulnerability has been resolved:
genirq/proc: Size interrupt directory names for 10-digit interrupt numbers
/proc/irq/<n>/ directory names are built in `char name[10]` buffers with `sprintf(name, "%u", irq)`.
Ten-digit IRQ numbers already need 11 bytes including the trailing NUL, and current sparse-IRQ configurations allow interrupt numbers in that range.
Size the temporary name buffer for the current decimal form and switch to bounded formatting when creating or removing the proc entry.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Nov 3, 2026 | Sep 24, 2026 |
| Redhat_linux | — | No solution exists | Oct 1, 2026 | Sep 24, 2026 |
| Ubuntu | — | Upgrade linux-oracleUpgrade linux-gcpUpgrade linux-riscvUpgrade linux-hwe-7.0Upgrade linux-ibmUpgrade linuxUpgrade linux-riscv-7.0Upgrade linux-oem-7.0Upgrade linux-aws | Nov 3, 2026 | Sep 24, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Nov 4, 2026 | Sep 24, 2026 |
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