CVE-2026-98353
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/00baeade709fb66da647e8327e8398bb532e30f7
https://git.kernel.org/stable/c/74d4085221a7ec5440996af199ccadfa75b9eb0e