CVE-2026-31536 | In the Linux kernel, the following vulnerability has been re… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-31536
State: PUBLISHED
Assigner: Linux
Reserved: 2026-03-09 15:48 UTC
Published: 2026-04-24 14:30 UTC
Last updated: 2026-05-11 22:10 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	0626e6641f6b467447c81dd7678a69c66f7746cf < 24082642654f3e5149913946e89c00a297a8868f, 0626e6641f6b467447c81dd7678a69c66f7746cf < e38b415c024bc3b6321bf8650dbf3f4aab8e74b3, 0626e6641f6b467447c81dd7678a69c66f7746cf < 9da82dc73cb03e85d716a2609364572367a5ff47
Linux	Linux	—	5.15, 0 < 5.15, 6.18.11 ≤ 6.18., 6.19.1 ≤ 6.19. …

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (3)