CVE-2026-23454Expired Pointer Dereference in Linux

Severity
5.5MEDIUM
No vector
EPSS
0.0%
top 90.94%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedApr 3

Description

In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in mana_hwc_destroy_channel() by reordering teardown A potential race condition exists in mana_hwc_destroy_channel() where hwc->caller_ctx is freed before the HWC's Completion Queue (CQ) and Event Queue (EQ) are destroyed. This allows an in-flight CQ interrupt handler to dereference freed memory, leading to a use-after-free or NULL pointer dereference in mana_hwc_handle_resp(). mana_smc_teardown_

Affected Packages3 packages

Debianlinux/linux_kernel< 6.19.10-1
CVEListV5linux/linuxca9c54d2d6a5ab2430c4eda364c77125d62e5e0fe23bf444512cb85d76012080a76cd1f9e967448e+6
debiandebian/linux< linux 6.19.10-1 (forky)

🔴Vulnerability Details

2
OSV
CVE-2026-23454: In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in mana_hwc_destroy_channel() by reordering teardown2026-04-03
GHSA
GHSA-v535-7p5c-7xm9: In the Linux kernel, the following vulnerability has been resolved: net: mana: fix use-after-free in mana_hwc_destroy_channel() by reordering teardow2026-04-03

📋Vendor Advisories

2
Red Hat
kernel: net: mana: fix use-after-free in mana_hwc_destroy_channel() by reordering teardown2026-04-03
Debian
CVE-2026-23454: linux - In the Linux kernel, the following vulnerability has been resolved: net: mana: ...2026

🕵️Threat Intelligence

1
Wiz
CVE-2026-23454 Impact, Exploitability, and Mitigation Steps | Wiz