CVE-2026-98932High· 7.4▾ Twilight

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

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 d…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score41/ 100 · Moderate

impact 40.7 · likelihood 0 · exploitation 0

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Proof of concept

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Published

Oct 23, 2026

Updated

Oct 24, 2026

CVSS

7.4

Vendor

Linux

Product

Linux

CWE

—

Depth score

41 · Moderate

EPSS

0.21% · p10

Platforms

—

Source

CVEORG

Vector

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS history

Exploit-prediction probability, daily snapshots since Oct 24.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 2 days

Oct 23, 2026Published
Disclosed via CVEORG
Oct 24, 2026Record revised
Last analysed / modified upstream
Oct 24, 2026EPSS first tracked
0.2%
Oct 24, 2026CVSS changed
— → 7.4
Oct 24, 2026Severity changed
none → high

Linux #cve.org

Affected

Linux >= 588cb03ea208b303e6dee7e916f329043fd0fc26 < 865f3bdebbc9b34012358c377c9b15154f95f33b
Linux >= 588cb03ea208b303e6dee7e916f329043fd0fc26 < 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbba
Linux >= 588cb03ea208b303e6dee7e916f329043fd0fc26 < eef3b67f9c6782127163b631c9043011a68016e2
Linux 4.7

Full technical detail▾

Overview

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.

Affected

Linux >= 588cb03ea208b303e6dee7e916f329043fd0fc26 < 865f3bdebbc9b34012358c377c9b15154f95f33b
Linux >= 588cb03ea208b303e6dee7e916f329043fd0fc26 < 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbba
Linux >= 588cb03ea208b303e6dee7e916f329043fd0fc26 < eef3b67f9c6782127163b631c9043011a68016e2
Linux 4.7

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Oct 24, 2026CVSS — → 7.4
Oct 24, 2026Severity none → high

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#cve.org

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

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score41/ 100 · Moderate

impact 40.7 · likelihood 0 · exploitation 0

Overview

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

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

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