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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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-2023-54266 | media: dvb-usb: m920x: Fix a potential memory leak in m920x_i2c_xfer() | |
| CVE-2023-54250 | ksmbd: avoid out of bounds access in decode_preauth_ctxt() | |
| CVE-2023-54249 | bus: mhi: ep: Only send -ENOTCONN status if client driver is available | |
| CVE-2023-54251 | net/sched: taprio: Limit TCA_TAPRIO_ATTR_SCHED_CYCLE_TIME to INT_MAX. | |
| CVE-2023-54253 | btrfs: set page extent mapped after read_folio in relocate_one_page | |
| CVE-2023-54252 | platform/x86: think-lmi: Fix memory leaks when parsing ThinkStation WMI strings | |
| CVE-2023-54254 | drm/ttm: Don't leak a resource on eviction error | |
| CVE-2023-54255 | sh: dma: Fix DMA channel offset calculation | |
| CVE-2023-54257 | net: macb: fix a memory corruption in extended buffer descriptor mode | |
| CVE-2023-54258 | cifs: fix potential oops in cifs_oplock_break | |
| CVE-2023-54259 | soundwire: bus: Fix unbalanced pm_runtime_put() causing usage count underflow | |
| CVE-2023-54260 | cifs: Fix lost destroy smbd connection when MR allocate failed | |
| CVE-2023-54261 | drm/amdkfd: Add missing gfx11 MQD manager callbacks | |
| CVE-2023-54262 | net/mlx5e: Don't clone flow post action attributes second time | |
| CVE-2023-54263 | drm/nouveau/kms/nv50-: init hpd_irq_lock for PIOR DP | |
| CVE-2023-54264 | fs/sysv: Null check to prevent null-ptr-deref bug | |
| CVE-2023-54274 | RDMA/srpt: Add a check for valid 'mad_agent' pointer | |
| CVE-2023-54275 | wifi: ath11k: Fix memory leak in ath11k_peer_rx_frag_setup | |
| CVE-2023-54276 | nfsd: move init of percpu reply_cache_stats counters back to nfsd_init_net | |
| CVE-2023-54273 | xfrm: Fix leak of dev tracker |
Showing top 20 of 244 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-64186
iommu/amd: Remove latent out-of-bounds access in IOMMU debug - CVE-2026-64184
mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break() - CVE-2026-64185
sysfs: don't remove existing directory on update failure - CVE-2026-64183
efi: Allocate runtime workqueue before ACPI init - CVE-2026-64182
drivers/base/memory: fix memory block reference leak in pois
Same vendor: Linux
- CVE-2026-64186
iommu/amd: Remove latent out-of-bounds access in IOMMU debug - CVE-2026-64184
mm/damon/sysfs-schemes: call missing mem_cgroup_iter_break() - CVE-2026-64185
sysfs: don't remove existing directory on update failure - CVE-2026-64183
efi: Allocate runtime workqueue before ACPI init - CVE-2026-64182
drivers/base/memory: fix memory block reference leak in pois
V. Comments for CVE-2022-50876
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