CVE-2026-98428ALSA: usb: 6fire: Avoid embedded URBs
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% 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: usb: 6fire: Avoid embedded URBs The USB 6fire driver uses URBs embedded in different structs for PCM, MIDI and communication, and this is basically a buggy implementation nowadays; since a URB is managed with a refcount, this may lead to a UAF when the URB is released asynchronously. For addressing the problem, this patch converts those embedded URBs to ones that are properly allocated via usb_alloc_urb(). The pcm_urb.packets[] is gone, as it's allocated by usb_alloc_urb(), hence it's found in urb.iso_frame_desc[] instead. The conversions are rather straightforward; each embedded struct urb is changed to a pointer, and its callers are updated accordingly. The resource for those structs are released in the common destructor functions (usb6fire_comm_free(), etc), which are called at both the init error path and the disconnect. No functional changes, only compile-tested.
Timeline
ID reserved
By Linux
- 19 days later
· 19 days later
Published
- 12 days later
· 12 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: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 – < 3ef9093d83ffecb8e5f6c9d5769a52d39df74f7a
- affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 – < 8b8559aeaba2e51cfee1779b2383b085991f7d81
- affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 – < 52a43c2d57e774489ac3fbbac06ff02f19bd9a52
- affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 – < 999f433c09e4668412bd68ca207ae2b4af863862
- affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 – < d181434549b3da668110a25d743848cce9897f4e
- affected c6d43ba816d1cf1d125bfbfc938f2a28a87facf9 – < 9fe49dbc023e82dfaee7b245997d820d01742a9a
- affected 2.6.39
- unaffected < 2.6.39
- unaffected 6.1.189 – ≤ 6.1.*
- unaffected 6.6.158 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.54 – ≤ 6.18.*
- unaffected 7.2.8 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/3ef9093d83ffecb8e5f6c9d5769a52d39df74f7a (opens in a new tab)
- https://git.kernel.org/stable/c/8b8559aeaba2e51cfee1779b2383b085991f7d81 (opens in a new tab)
- https://git.kernel.org/stable/c/52a43c2d57e774489ac3fbbac06ff02f19bd9a52 (opens in a new tab)
- https://git.kernel.org/stable/c/999f433c09e4668412bd68ca207ae2b4af863862 (opens in a new tab)
- https://git.kernel.org/stable/c/d181434549b3da668110a25d743848cce9897f4e (opens in a new tab)
- https://git.kernel.org/stable/c/9fe49dbc023e82dfaee7b245997d820d01742a9a (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-2026-101077 (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-2026-98428)Record last updated .