CVE-2022-50490

HIGH EPSS 4.2%
Published Oct 4, 20259mo ago · Modified Jun 17, 20262w ago
7.1 CVSS 3.1
High
Find Similar
Published Oct 4, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from htab_lock_bucket() to userspace In __htab_map_lookup_and_delete_batch() if htab_lock_bucket() returns -EBUSY, it will go to next bucket. Going to next bucket may not only skip the elements in current bucket silently, but also incur out-of-bound memory access or expose kernel memory to userspace if current bucket_cnt is greater than bucket_size or zero. Fixing it by stopping batch operation and returning -EBUSY when htab_lock_bucket() fails, and the application can retry or skip the busy batch as needed.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥5.11  –  <5.15.75
linuxlinux_kernel*≥5.16  –  <5.19.17
linuxlinux_kernel*≥6.0  –  <6.0.3

References 4

  • git.kernel.org https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
    Patch