CVE-2026-98932

EDAC/altera: Fix use-after-free in error paths

State: Published
Severity: 7.4 High
Published: Oct 23, 2026
Updated: Oct 24, 2026
Reserved: Sep 25, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

EDAC/altera: Fix use-after-free in error paths

In both altr_edac_a10_device_add() and altr_portb_setup(), the error path freed the dci structure before releasing the devres group. Since the managed single and double bit IRQ handlers use altdev(dci->pvt_info) as their data, an IRQ firing between freeing dci and unregistering the IRQs could dereference the freed memory.

Release the devres group first so the managed IRQs are unregistered before the dci structure is freed.

Scores

CVSS	Score	Vector	Source
3.1	7.4 High	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	588cb03ea208b303e6dee7e916f329043fd0fc26 to before 865f3bdebbc9b34012358c377c9b15154f95f33bAffected 588cb03ea208b303e6dee7e916f329043fd0fc26 to before 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbbaAffected 588cb03ea208b303e6dee7e916f329043fd0fc26 to before eef3b67f9c6782127163b631c9043011a68016e2Affected
LinuxLinux	4.7Affected before 4.7Not affected 6.18.56 through 6.18.Not affected 7.2.10 through 7.2.Not affected 7.3 and laterNot affected

References

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