CVE-2026-98086ALSA: ump: do not touch legacy_rmidi before it exists
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: ump: do not touch legacy_rmidi before it exists snd_ump_parse_endpoint() sets ump->parsed on every exit, including error, before the caller attaches the legacy rawmidi device. ump_handle_ep_name_msg() then treats parsed as "legacy_rmidi is live" and calls ump_legacy_set_rawmidi_name(), which snprintf()s into ump->legacy_rmidi->name. If a UMP packet arrives in that window (IRQ path from snd_ump_receive), legacy_rmidi is still NULL (KASAN null-ptr-deref in snprintf). Guard the legacy helpers. parsed only means endpoint info was parsed, not that legacy_rmidi exists.
Timeline
ID reserved
By Linux
Published
- 24 days later
· 24 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Undergoing Analysis.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 37e0e14128e0685267dc5c037bf655421a6ce2ea – < d6f9af093dc91dac8848a01e417b8109c651c0b2
- affected 37e0e14128e0685267dc5c037bf655421a6ce2ea – < 1c8e01792adf91879322f1ad752f1814de8b7e7d
- affected 37e0e14128e0685267dc5c037bf655421a6ce2ea – < 228075f31b141395233218712242913125ace4e0
- affected 37e0e14128e0685267dc5c037bf655421a6ce2ea – < a4cef20cd473e0640fefd38094d4baac0ec76ae3
- affected 37e0e14128e0685267dc5c037bf655421a6ce2ea – < adeee7187694719890aaffdc14b7e89cfd736f1d
- affected 6.5
- unaffected < 6.5
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/d6f9af093dc91dac8848a01e417b8109c651c0b2 (opens in a new tab)
- https://git.kernel.org/stable/c/1c8e01792adf91879322f1ad752f1814de8b7e7d (opens in a new tab)
- https://git.kernel.org/stable/c/228075f31b141395233218712242913125ace4e0 (opens in a new tab)
- https://git.kernel.org/stable/c/a4cef20cd473e0640fefd38094d4baac0ec76ae3 (opens in a new tab)
- https://git.kernel.org/stable/c/adeee7187694719890aaffdc14b7e89cfd736f1d (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-86916 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-98086)Record last updated .