CVE-2026-97930ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
In the Linux kernel, the following vulnerability has been resolved: ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf The in04_last array in struct usx2ydev is declared as char[24], but in04_buf is allocated as sizeof(struct us428_ctls) which is 21 bytes. In i_usx2y_in04_int(), when ctl_snapshot_last == -2 (initialization path): memcpy(usx2y->in04_last, usx2y->in04_buf, sizeof(usx2y->in04_last)); This copies 24 bytes from a 21-byte slab allocation, reading 3 bytes past the end of the source object. Introduce a USX2Y_IN04_SIZE constant defined as sizeof(struct us428_ctls) and use it consistently for the in04_last array, the in04_buf allocation, the URB transfer length, and the comparison loop, replacing the bare 24 and 21 literals throughout.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 3, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 869fb83c072e884b80d93eab498e6040ffb010ba; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before d170cfbe38c8817ac787f605655546a6d343017d; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 229cab526580f82839ae8e4e379753c8cf16952e; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 381495b5b3da12d714e53d9d12d955b13fe26eac; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before b5753bdfd909f7f095fb464d67802b5e52cbadbf; from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 861111a14740e12c36d363e9830f8daa734279c9 | CNA record |
References
- https://git.kernel.org/stable/c/e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57
- https://git.kernel.org/stable/c/869fb83c072e884b80d93eab498e6040ffb010ba
- https://git.kernel.org/stable/c/d170cfbe38c8817ac787f605655546a6d343017d
- https://git.kernel.org/stable/c/229cab526580f82839ae8e4e379753c8cf16952e
- https://git.kernel.org/stable/c/381495b5b3da12d714e53d9d12d955b13fe26eac
- https://git.kernel.org/stable/c/b5753bdfd909f7f095fb464d67802b5e52cbadbf
- https://git.kernel.org/stable/c/861111a14740e12c36d363e9830f8daa734279c9
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.