CVE-2026-31536

CRITICAL EPSS 35.3%
Published Apr 24, 20262mo ago · Modified Jun 17, 20261w ago
9.8 CVSS 3.1
Critical
Find Similar
Published Apr 24, 2026 2mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: smb: server: let send_done handle a completion without IB_SEND_SIGNALED With smbdirect_send_batch processing we likely have requests without IB_SEND_SIGNALED, which will be destroyed in the final request that has IB_SEND_SIGNALED set. If the connection is broken all requests are signaled even without explicit IB_SEND_SIGNALED.

CVSS Details

Base Score
9.8
Exploitability
3.9
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
35.3% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥5.15  –  <6.18.11
linuxlinux_kernel*≥6.19  –  <6.19.1

References 3

  • git.kernel.org https://git.kernel.org/stable/c/24082642654f3e5149913946e89c00a297a8868f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9da82dc73cb03e85d716a2609364572367a5ff47
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e38b415c024bc3b6321bf8650dbf3f4aab8e74b3
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/24082642654f3e5149913946e89c00a297a8868f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9da82dc73cb03e85d716a2609364572367a5ff47
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e38b415c024bc3b6321bf8650dbf3f4aab8e74b3
    Patch