CVE-2026-98353: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: RDMA/erdma: Use IRQ-safe XArray helpers for QP and CQ tables Locked QP and CQ lookups from EQ interrupts can deadlock with create-path XArray updates. If an interrupt arrives while the create path holds the plain xa_lock, the lookup spins forever trying to acquire the same lock. Use IRQ-safe XArray helpers for all QP and CQ create-path updates, including the GSI QP store and error paths. Initialize both arrays with XA_FLAGS_LOCK_IRQ so sleeping allocations preserve interrupt state.

Affected products

• Linux Linux: from 7.2.6, before 7.2.8 (fixed in 7.2.8); from 6.1.188, before 6.2 (fixed in 6.2); from 6.6.157, before 6.7 (fixed in 6.7); from 6.12.110, before 6.13 (fixed in 6.13); from 6.18.52, before 6.19 (fixed in 6.19)

Published 2026-10-06. Last modified 2026-10-06.