CVE-2022-50034

HIGH EPSS 5.5%
Published Jun 18, 20251y ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
High
Find Similar
Published Jun 18, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: usb: cdns3 fix use-after-free at workaround 2 BUG: KFENCE: use-after-free read in __list_del_entry_valid+0x10/0xac cdns3_wa2_remove_old_request() { ... kfree(priv_req->request.buf); cdns3_gadget_ep_free_request(&priv_ep->endpoint, &priv_req->request); list_del_init(&priv_req->list); ^^^ use after free ... } cdns3_gadget_ep_free_request() free the space pointed by priv_req, but priv_req is used in the following list_del_init(). This patch move list_del_init() before cdns3_gadget_ep_free_request().

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
5.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 4

VendorProductVersionRange
linuxlinux_kernel*≥5.3  –  <5.4.211
linuxlinux_kernel*≥5.5  –  <5.10.138
linuxlinux_kernel*≥5.11  –  <5.15.63
linuxlinux_kernel*≥5.16  –  <5.19.4

References 5

  • git.kernel.org https://git.kernel.org/stable/c/6d7ac60098b206d0472475b666cb09d556bec03d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6fd50446e7c9a98b4bcf96815f5c9602a16ea472
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d602f30149a117eea260208b1661bc404c21dfd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e65d9b7147d7be3504893ca7dfb85286bda83d40
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/6d7ac60098b206d0472475b666cb09d556bec03d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6fd50446e7c9a98b4bcf96815f5c9602a16ea472
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d602f30149a117eea260208b1661bc404c21dfd
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c3c1dbad3a2db32ecf371c97f2058491b8ba0f9a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e65d9b7147d7be3504893ca7dfb85286bda83d40
    Patch