CVE-2026-98086
- Source
- https://cve.org/CVERecord?id=CVE-2026-98086
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-98086.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-98086
- Downstream
- Published
- 2026-09-25T10:24:21Z
- Modified
- 2026-09-26T03:48:32Z
- Summary
- ALSA: ump: do not touch legacy_rmidi before it exists
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98086.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/1c8e01792adf91879322f1ad752f1814de8b7e7d
- https://git.kernel.org/stable/c/228075f31b141395233218712242913125ace4e0
- https://git.kernel.org/stable/c/a4cef20cd473e0640fefd38094d4baac0ec76ae3
- https://git.kernel.org/stable/c/adeee7187694719890aaffdc14b7e89cfd736f1d
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98086.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-98086
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced37e0e14128e0685267dc5c037bf655421a6ce2eaFixed1c8e01792adf91879322f1ad752f1814de8b7e7dFixed228075f31b141395233218712242913125ace4e0Fixeda4cef20cd473e0640fefd38094d4baac0ec76ae3Fixedadeee7187694719890aaffdc14b7e89cfd736f1d