# ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF

CVE record · `CVE-2026-98116`

- **Identifiers:** `CVE-2026-98116`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:36 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `33061d0fba51d2bf70a2ef9645f703c33fe8e438 to before e6cdd2a0470d64073349a970dc1691433804b271` (git)
  - affected: `92ee3c60ec9fe64404dc035e7c41277d74aa26cb to before 9857a75714bb5df4781e4d8b1a1753b1e17bf07a` (git)
  - affected: `92ee3c60ec9fe64404dc035e7c41277d74aa26cb to before cbadf2575d25e7dcc0d4da2717817ae569fbc99b` (git)
  - affected: `92ee3c60ec9fe64404dc035e7c41277d74aa26cb to before cbc7ec97601d09b74e05e44470fa6b0bcdabf3f5` (git)
  - affected: `92ee3c60ec9fe64404dc035e7c41277d74aa26cb to before fd137bf8149bc6460f9b7b1fc292025da04cb9ee` (git)
  - affected: `92ee3c60ec9fe64404dc035e7c41277d74aa26cb to before 8c1882dfee8f404d118020664b73eb4592172226` (git)
  - affected: `92ee3c60ec9fe64404dc035e7c41277d74aa26cb to before 9b110a9dcecc59516c77cb3c0caf1f492f75df2d` (git)
  - affected: `a42aa926843acca96c0dfbde2e835b8137f2f092` (git)
  - affected: `9cb6c40a6ebe4a0cfc9d6a181958211682cffea9` (git)
  - affected: `fbeb492694ce0441053de57699e1e2b7bc148a69` (git)
  - affected: `0f6947f5f5208f6ebd4d76a82a4757e2839a23f8` (git)
  - affected: `0090c13cbbdffd7da079ac56f80373a9a1be0bf8` (git)
  - and 8 more
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.18`
  - unaffected: `before 5.18` (semver)
  - unaffected: `5.15.222 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.189 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 7.8 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0013, the 2nd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98116](https://www.cve.org/CVERecord?id=CVE-2026-98116)
- [NVD: CVE-2026-98116](https://nvd.nist.gov/vuln/detail/CVE-2026-98116)

### References from the CNA

- <https://git.kernel.org/stable/c/e6cdd2a0470d64073349a970dc1691433804b271>
- <https://git.kernel.org/stable/c/9857a75714bb5df4781e4d8b1a1753b1e17bf07a>
- <https://git.kernel.org/stable/c/cbadf2575d25e7dcc0d4da2717817ae569fbc99b>
- <https://git.kernel.org/stable/c/cbc7ec97601d09b74e05e44470fa6b0bcdabf3f5>
- <https://git.kernel.org/stable/c/fd137bf8149bc6460f9b7b1fc292025da04cb9ee>
- <https://git.kernel.org/stable/c/8c1882dfee8f404d118020664b73eb4592172226>
- <https://git.kernel.org/stable/c/9b110a9dcecc59516c77cb3c0caf1f492f75df2d>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-98116>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-98116/>. Everything for agents: <https://agentprime.io/llms.txt>.