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CVE-2025-38711 In the Linux kernel, the following vulnerability has been resolved: smb/server: avoid deadlock when linking with…

Description

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
Linux 6.17 premières → < 6.17 6.17
Linux 6.16 premières → < 6.16.2 6.16.2
Linux 6.15 premières → < 6.15.11 6.15.11
Linux 6.12 premières → < 6.12.43 6.12.43
Linux 6.6 premières → < 6.6.103 6.6.103
Linux 6.1 premières → < 6.1.149 6.1.149
Linux 5.15 5.15.190
SIMATIC CN 4100 5.0 premières → < 5.0 5.0

Références

Chronologie

  1. Publiée
  2. Dernière modification

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