# CVE-2026-23453: linux: In the Linux kernel, the following vulnerability has been resolved:  net: ti: icssg-prueth: Fix memory leak in XDP_DR...

CVE-2026-23453 is fixed in linux on 1 platform by DEBIAN-CVE-2026-23453 (version 6.19.10-1), released April 3, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-23453
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0036
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 3, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: ti: icssg-prueth: Fix memory leak in XDP_DROP for non-zero-copy mode  Page recycling was removed from the XDP_DROP path in emac_run_xdp() to avoid conflicts with AF_XDP zero-copy mode, which uses xsk_buff_free() instead.  However, this causes a memory leak when running XDP programs that drop packets in non-zero-copy mode (standard page pool mode). The pages are never returned to the page pool, leading to OOM conditions.  Fix this by handling cleanup in the caller, emac_rx_packet(). When emac_run_xdp() returns ICSSG_XDP_CONSUMED for XDP_DROP, the caller now recycles the page back to the page pool. The zero-copy path, emac_rx_packet_zc() already handles cleanup correctly with xsk_buff_free().

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.19.10-1 | [DEBIAN-CVE-2026-23453](https://patchblox.com/security/data/fix/linux/debian-cve-2026-23453.md) | Apr 3, 2026 |

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Data as of 2026-11-08T19:12:23Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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