CVE-2022-50876— usb: musb: Fix musb_gadget.c rxstate overflow bug
Possible ATT&CK Techniques 1AI
T1203 · Exploitation for Client ExecutionAffected Version Matrix 20
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 03840fad004ce8a56bc8b3bb60a2df10f6f9481e< 826f84ab04a5cafe484ea9c2c85a3930068e5cb7 | affected |
03840fad004ce8a56bc8b3bb60a2df10f6f9481e< a1008c8b9f357691ce6a8fdb8f157aecb2d79167 | affected | ||
03840fad004ce8a56bc8b3bb60a2df10f6f9481e< 7c80f3a918ba9aa26fb699ee887064ec3af0396a | affected | ||
03840fad004ce8a56bc8b3bb60a2df10f6f9481e< d6afcab1b48f4051211c50145b9e91be3b1b42c9 | affected | ||
03840fad004ce8a56bc8b3bb60a2df10f6f9481e< acf0006f2b2b2ca672988875fd154429aafb2a9b | affected | ||
03840fad004ce8a56bc8b3bb60a2df10f6f9481e< 3c84c7f592c4ba38f54ddaddd0115acc443025db | affected | ||
03840fad004ce8a56bc8b3bb60a2df10f6f9481e< a9ccd2ab1becf5dcb6d57e9fcd981f5eaa606c96 | affected | ||
03840fad004ce8a56bc8b3bb60a2df10f6f9481e< 523313881f0aa5cbbdb548ce575b6e58b202bd76 | affected | ||
| … +12 more rows | |||
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I. Basic Information for CVE-2022-50876
Vulnerability Information
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Vulnerability Title
usb: musb: Fix musb_gadget.c rxstate overflow bug
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: usb: musb: Fix musb_gadget.c rxstate overflow bug The usb function device call musb_gadget_queue() adds the passed request to musb_ep::req_list,If the (request->length > musb_ep->packet_sz) and (is_buffer_mapped(req) return false),the rxstate() will copy all data in fifo to request->buf which may cause request->buf out of bounds. Fix it by add the length check : fifocnt = min_t(unsigned, request->length - request->actual, fifocnt);
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
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于长度检查不足，可能导致缓冲区溢出。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-50876
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2022-50876 (9)
Same Patch Batch · Linux · 2025-12-30 · 244 CVEs total
| CVE-2023-54184 | 9.8 CRITICAL | scsi: target: iscsit: Free cmds before session free |
| CVE-2023-54223 | 9.8 CRITICAL | net/mlx5e: xsk: Fix invalid buffer access for legacy rq |
| CVE-2023-54237 | 9.8 CRITICAL | net/smc: fix potential panic dues to unprotected smc_llc_srv_add_link() |
| CVE-2023-54257 | 9.8 CRITICAL | net: macb: fix a memory corruption in extended buffer descriptor mode |
| CVE-2023-54258 | 9.8 CRITICAL | cifs: fix potential oops in cifs_oplock_break |
| CVE-2023-54269 | 9.8 CRITICAL | SUNRPC: double free xprt_ctxt while still in use |
| CVE-2023-54280 | 9.8 CRITICAL | cifs: fix potential race when tree connecting ipc |
| CVE-2023-54292 | 9.8 CRITICAL | RDMA/irdma: Fix data race on CQP request done |
| CVE-2023-54203 | 9.1 CRITICAL | ksmbd: fix slab-out-of-bounds in init_smb2_rsp_hdr |
| CVE-2022-50880 | 8.8 HIGH | wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state() |
| CVE-2023-54262 | 8.8 HIGH | net/mlx5e: Don't clone flow post action attributes second time |
| CVE-2023-54214 | 8.8 HIGH | Bluetooth: L2CAP: Fix potential user-after-free |
| CVE-2023-54162 | 8.8 HIGH | ksmbd: fix possible memory leak in smb2_lock() |
| CVE-2023-54318 | 8.8 HIGH | net/smc: use smc_lgr_list.lock to protect smc_lgr_list.list iterate in smcr_port_add |
| CVE-2023-54250 | 8.2 HIGH | ksmbd: avoid out of bounds access in decode_preauth_ctxt() |
| CVE-2023-54164 | 8.0 HIGH | Bluetooth: ISO: fix iso_conn related locking and validity issues |
| CVE-2023-54206 | 7.8 HIGH | net/sched: flower: fix filter idr initialization |
| CVE-2023-54202 | 7.8 HIGH | drm/i915: fix race condition UAF in i915_perf_add_config_ioctl |
| CVE-2023-54210 | 7.8 HIGH | Bluetooth: hci_sync: Avoid use-after-free in dbg for hci_remove_adv_monitor() |
| CVE-2023-54243 | 7.8 HIGH | netfilter: ebtables: fix table blob use-after-free |
Showing top 20 of 244 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-68480
x86/bugs: Make Safe-RET robust against interrupt injection - CVE-2026-64604
KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is - CVE-2026-64602
iio: adc: spear: Initialize completion before requesting IRQ - CVE-2026-64603
platform/x86: intel-hid: Protect ACPI notify handler against - CVE-2026-64601
ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_
Same vendor: Linux
- CVE-2026-68480
x86/bugs: Make Safe-RET robust against interrupt injection - CVE-2026-64604
KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is - CVE-2026-64602
iio: adc: spear: Initialize completion before requesting IRQ - CVE-2026-64603
platform/x86: intel-hid: Protect ACPI notify handler against - CVE-2026-64601
ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_
V. Comments for CVE-2022-50876
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