# CVE-2026-23384: linux: In the Linux kernel, the following vulnerability has been resolved:  RDMA/ionic: Fix kernel stack leak in ionic_creat...

CVE-2026-23384 is fixed in linux on 1 platform by DEBIAN-CVE-2026-23384 (version 6.19.8-1), released March 25, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-23384
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0012
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 25, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  RDMA/ionic: Fix kernel stack leak in ionic_create_cq()  struct ionic_cq_resp resp {     __u32 cqid[2];         // offset 0 - PARTIALLY SET (see below)     __u8  udma_mask;       // offset 8 - SET (resp.udma_mask = vcq->udma_mask)     __u8  rsvd[7];         // offset 9 - NEVER SET <- LEAK };  rsvd[7]: 7 bytes of stack memory leaked unconditionally.  cqid[2]: The loop at line 1256 iterates over udma_idx but skips indices where !(vcq->udma_mask & BIT(udma_idx)). The array has 2 entries but udma_count could be 1, meaning cqid[1] might never be written via ionic_create_cq_common(). If udma_mask only has bit 0 set, cqid[1] (4 bytes) is also leaked. So potentially 11 bytes leaked.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.19.8-1 | [DEBIAN-CVE-2026-23384](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23384.md) | Mar 25, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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