5.5

CVE-2024-46742

smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()

In the Linux kernel, the following vulnerability has been resolved:

smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()

null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE)
and parse_lease_state() return NULL.

Fix this by check if 'lease_ctx_info' is NULL.

Additionally, remove the redundant parentheses in
parse_durable_handle_context().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 6.6.51
Linux ≫ Linux Kernel Version >= 6.7 < 6.10.10
Linux ≫ Linux Kernel Version6.11 Updaterc1
Linux ≫ Linux Kernel Version6.11 Updaterc2
Linux ≫ Linux Kernel Version6.11 Updaterc3
Linux ≫ Linux Kernel Version6.11 Updaterc4
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.147
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6
Patch
https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada
Patch
https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db
Patch
https://git.kernel.org/stable/c/ec28c35029b7930f31117f9284874b63bea4f31b
https://git.kernel.org/stable/c/878f32878351104448b86ef5b85d1f8ed6f599fb
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html