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CVE-2026-98308

Linux: ALSA: hda: trace PCM open only after assigning a stream

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)0.18%Chance of exploitation activity in the next 30 days, higher than 7% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in5a4c974dee03cc46eac43c82f33e34ec94f0b348Also 3c6ca6d9342f4a0be7c1413180e11023d13b5cde, 0a52ba6d3b268bb82f0ec4cb861bc68d252369c0 and 3 moreCVE List
Published6 Oct 2026Updated 19 Oct 2026CVE List

What fixes it

  • 5a4c974dee03cc46eac43c82f33e34ec94f0b348LinuxCVE List
  • 3c6ca6d9342f4a0be7c1413180e11023d13b5cdeLinuxCVE List
  • 0a52ba6d3b268bb82f0ec4cb861bc68d252369c0LinuxCVE List
  • 5c89e7965220e85d06ae4c58adb7d7bb6da2440cLinuxCVE List
  • 8477643cb91c9e09ac1b11890eef421ae63e53f7LinuxCVE List
  • 3db8afba2d210b7d80cd5cc6b76d7f46daa9b47aLinuxCVE 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:

ALSA: hda: trace PCM open only after assigning a stream

Stream assignment can fail when hardware streams are exhausted. Move the tracepoint after the NULL check because its payload accesses the assigned stream tag.

Detected by static analysis and reviewed with AI-assisted source auditing.

Text from CVE List

Affected versions 18

  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before 5a4c974dee03cc46eac43c82f33e34ec94f0b348CVE List
  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before fba079ea22822248c82c3a999c88676d05b17bdaCVE List
  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before 3c6ca6d9342f4a0be7c1413180e11023d13b5cdeCVE List
  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before 0a52ba6d3b268bb82f0ec4cb861bc68d252369c0CVE List
  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before 5c89e7965220e85d06ae4c58adb7d7bb6da2440cCVE List
  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before 8477643cb91c9e09ac1b11890eef421ae63e53f7CVE List
  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before 3db8afba2d210b7d80cd5cc6b76d7f46daa9b47aCVE List
  • Linuxaffected: 184865085b88789fc8a355cc16ceff25f82f63ba before c9e6e5f38bf75276605f1952b22285f5f3abcaffCVE List
  • Linuxaffected: 4.2CVE List
  • Linuxunaffected: all versions before 4.2CVE List
  • Linuxunaffected: 5.10.271 through 5.10.*CVE List
  • Linuxunaffected: 5.15.222 through 5.15.*CVE List
  • Linuxunaffected: 6.1.189 through 6.1.*CVE List
  • Linuxunaffected: 6.6.158 through 6.6.*CVE List
  • Linuxunaffected: 6.12.112 through 6.12.*CVE List
  • Linuxunaffected: 6.18.54 through 6.18.*CVE List
  • Linuxunaffected: 7.2.8 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 8