CVE-2026-97930— ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf
Quick assessment
Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
在 Linux 内核中，已解决以下漏洞： ALSA: usbusx2y: 修复 in04_last 数组大小与 in04_buf 不匹配的问题 struct usx2ydev 中的 in04_last 数组被声明为 char[24]，而 in04_buf 分配的大小为 sizeof(struct us428_ctls)，即 21 字节。在 i_usx2y_in04_int() 函数中，当 ctl_snapshot_last == -2（初始化路径）时： memcpy(usx2y->in04_last, usx2y-
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting InterpreterAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< e75e4b0e647137f4c9f6dee4a7ef5b7b09e16f57 |
affected |
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 869fb83c072e884b80d93eab498e6040ffb010ba |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< d170cfbe38c8817ac787f605655546a6d343017d |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 229cab526580f82839ae8e4e379753c8cf16952e |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 381495b5b3da12d714e53d9d12d955b13fe26eac |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< b5753bdfd909f7f095fb464d67802b5e52cbadbf |
affected | ||
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 861111a14740e12c36d363e9830f8daa734279c9 |
affected | ||
2.6.12 |
affected | ||
| … +8 more rows | |||
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I. Basic Information for CVE-2026-97930
Vulnerability Information
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Vulnerability Title
ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-97930
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-97930 (7)
Same Patch Batch · Linux · 2026-09-25 · 372 CVEs total
| CVE-2026-100075 | 9.8 CRITICAL | RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters |
| CVE-2026-97555 | 8.8 HIGH | smb: client: fix heap overflow in DACL owner/group rewrite |
| CVE-2026-97957 | 8.8 HIGH | net: hinic: fix mailbox segment buffer overflow |
| CVE-2026-97527 | 8.8 HIGH | scsi: qla2xxx: Serialize NVMe unsol ctx list with a per-fcport lock |
| CVE-2026-97528 | 8.8 HIGH | scsi: qla2xxx: Unlink NVMe unsol ctx before freeing on LS reject error |
| CVE-2026-98115 | 8.8 HIGH | ksmbd: safely drain sessions during logoff |
| CVE-2026-97525 | 8.2 HIGH | x86/mm/pat: Allocate split page tables as kernel page tables |
| CVE-2026-98069 | 8.1 HIGH | net/rds: acquire the fastpath locks in rds_conn_shutdown() |
| CVE-2026-97573 | 8.1 HIGH | bnxt_en: Handle buffer allocation failure in bnxt_rx_ring_reset() |
| CVE-2026-97570 | 8.1 HIGH | bnxt_en: Bound SW TPA IDs to prevent crashes |
| CVE-2026-98130 | 8.1 HIGH | sctp: fix a TOCTOU race in SCTP_CMD_TIMER_START |
| CVE-2026-98070 | 8.1 HIGH | net/rds: acquire RDS_IN_XMIT in rds_tcp_reset_callbacks() |
| CVE-2026-98122 | 7.8 HIGH | vxlan: mdb: Fix use-after-free in vxlan_mdb_remote_src_del() |
| CVE-2026-97575 | 7.8 HIGH | media: v4l2-ctrls: validate AV1 tile counts |
| CVE-2026-97576 | 7.8 HIGH | media: v4l2-ctrls: validate HEVC tile counts |
| CVE-2026-98112 | 7.8 HIGH | ksmbd: fix listener task lifetime on netdev events |
| CVE-2026-98002 | 7.8 HIGH | iommu/amd: Fix ineffective error check in nested domain allocation |
| CVE-2026-98116 | 7.8 HIGH | ALSA: pcm: Serialize PCM mmap with buffer reallocation to fix page UAF |
| CVE-2026-97580 | 7.8 HIGH | media: rkvdec: bound HEVC tile loops and PPS id to the array capacity |
| CVE-2026-97940 | 7.8 HIGH | ipv6: fix fib6 walker UAF on seq stop |
Showing top 20 of 372 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same vendor: Linux
-
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
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bpf: Reject dev-bound-only programs on other devices -
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CVE-2026-98380
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V. Comments for CVE-2026-97930
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