In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix kernel stack leak in irdma_create_user_ah() struct irdma_create_ah_resp { // 8 bytes, no padding __u32 ah_id; // offset 0 - SET (uresp.ah_id = ah->sc_ah.ah_info.ah_idx) __u8 rsvd[4]; // offset 4 - NEVER SET <- LEAK }; rsvd[4]: 4 bytes of stack memory leaked unconditionally. Only ah_id is assigned before ib_respond_udata(). The reserved members of the structure were not zeroed.
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | Microsoft Windows |
| Linux | Linux | 4.x up to and including 4.0.4 |
| Linux | Linux | <= 1.4.15 |
| Linux | Linux | Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs and BMXNOR0200 |