CVE-2026-31608 smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()

🗓️ 24 Apr 2026 14:42:30Reported by GoogleType

osv

osv🔗 osv.dev👁 2 Views

CVE-2026-31608: fix to avoid double-free in smb_direct_free_sendmsg after flush by moving to batch.

Reporter	Title	Published	Views	Family All 83
ATTACKERKB	CVE-2026-31608	24 Apr 202614:42	–	attackerkb
AstraLinux	Astra Linux – Vulnerability in Linux 5.10	20 May 202605:53	–	astralinux
Chainguard	CVE-2026-31608 vulnerabilities	16 May 202601:18	–	cgr
Circl	CVE-2026-31608	2 Jul 202605:49	–	circl
CNNVD	Linux kernel 安全漏洞	24 Apr 202600:00	–	cnnvd
CVE	CVE-2026-31608	24 Apr 202614:42	–	cve
Cvelist	CVE-2026-31608 smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()	24 Apr 202614:42	–	cvelist
Debian CVE	CVE-2026-31608	24 Apr 202614:42	–	debiancve
EUVD	EUVD-2026-25501	24 Apr 202614:42	–	euvd
Microsoft CVE	smb: server: avoid double-free in smb_direct_free_sendmsg after smb_direct_flush_send_list()	26 Apr 202608:05	–	mscve

Source	Link
git	www.git.kernel.org/stable/c/2ba03f46132b0d1a7bafb86e1ef61951a2254023
git	www.git.kernel.org/stable/c/6968c91fab05b8fc4d6700e0cf34472bb422df25
git	www.git.kernel.org/stable/c/830de6eeb9db4cb7e758201fb99328ef4ca4b032
git	www.git.kernel.org/stable/c/84ff995ae826aa6bbcc6c7b9ea569ff67c021d72
github	www.github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31608.json
nvd	www.nvd.nist.gov/vuln/detail/CVE-2026-31608
git	www.git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

15 Jul 2026 01:48Current

6.6Medium risk

Vulners AI Score6.6

CVSS 3.19.8

EPSS0.00457

linux kernel smb server double free flush send list batch list smb direct free