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CVE-2026-98932

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

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)No scoreNo FIRST EPSS score in this snapshot yet
Fixed in865f3bdebbc9b34012358c377c9b15154f95f33bAlso 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbbaCVE List
Published23 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

  • 865f3bdebbc9b34012358c377c9b15154f95f33bLinuxCVE List
  • 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbbaLinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 8

  • Linuxaffected: 588cb03ea208b303e6dee7e916f329043fd0fc26 before 865f3bdebbc9b34012358c377c9b15154f95f33bCVE List
  • Linuxaffected: 588cb03ea208b303e6dee7e916f329043fd0fc26 before 87364b19b3fe4e6dbf88d6acf6db4ec87e7dfbbaCVE List
  • Linuxaffected: 588cb03ea208b303e6dee7e916f329043fd0fc26 before eef3b67f9c6782127163b631c9043011a68016e2CVE List
  • Linuxaffected: 4.7CVE List
  • Linuxunaffected: all versions before 4.7CVE List
  • Linuxunaffected: 6.18.56 through 6.18.*CVE List
  • Linuxunaffected: 7.2.10 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 3