CVE Watch19 oct 2026

CVE-2025-38711

In the Linux kernel, the following vulnerability has been resolved: smb/server: avoid deadlock when linking with ReplaceIfExists If smb2_c

CVSS

5.5

Medio

EPSS

0.1%

KEV

—

Exploit Today

0-100

Publicado: 4 sept 2025 · Última mod.: 19 oct 2026 · CWE-667

EPSS · 30d

0.1%EPSS · 30 días0.1%

2026-09-262026-10-25

Descripción técnica

In the Linux kernel, the following vulnerability has been resolved: smb/server: avoid deadlock when linking with ReplaceIfExists If smb2_create_link() is called with ReplaceIfExists set and the name does exist then a deadlock will happen. ksmbd_vfs_kern_path_locked() will return with success and the parent directory will be locked. ksmbd_vfs_remove_file() will then remove the file. ksmbd_vfs_link() will then be called while the parent is still locked. It will try to lock the same parent and will deadlock. This patch moves the ksmbd_vfs_kern_path_unlock() call to *before* ksmbd_vfs_link() and then simplifies the code, removing the file_present flag variable.

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