ksmbd: fix infinite loop caused by next_smb2_rcv_hdr_off reset in error paths

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CVE-2026-23220

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix infinite loop caused by nextsmb2rcvhdroff reset in error paths The problem occurs when a signed request fails smb2 signature verification check. In processrequest, if checksignreq returns an error, setsmb2rspstatuswork...

SUSE CVE-2023-54203

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in initsmb2rsphdr When smb1 mount fails, KASAN detect slab-out-of-bounds in initsmb2rsphdr like the following one. For smb1 negotiate56bytes , initsmb2rsphdr for smb2 is called. The issue occurs whil...

EUVD-2023-60438

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in initsmb2rsphdr When smb1 mount fails, KASAN detect slab-out-of-bounds in initsmb2rsphdr like the following one. For smb1 negotiate56bytes , initsmb2rsphdr for smb2 is called. The issue occurs whil...

CVE-2023-54203

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in initsmb2rsphdr When smb1 mount fails, KASAN detect slab-out-of-bounds in initsmb2rsphdr like the following one. For smb1 negotiate56bytes , initsmb2rsphdr for smb2 is called. The issue occurs whil...

CVE-2023-54203

The CVE-2023-54203 entry concerns the Linux kernel ksmbd subsystem fix for a slab-out-of-bounds in init_smb2_rsp_hdr triggered while handling SMB1 negotiate as SMB2 server operations. The described issue involves slab-out-of-bounds read (size 16) during SMB1 SMB2 response header processing, with ...

CVE-2024-26936 ksmbd: validate request buffer size in smb2_allocate_rsp_buf()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate request buffer size in smb2allocaterspbuf The response buffer should be allocated in smb2allocaterspbuf before validating request. But the fields in payload as well as smb2 header is used in smb2allocaterspbuf. Th...

DEBIAN-CVE-2023-52441

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix out of bounds in initsmb2rsphdr If client send smb2 negotiate request and then send smb1 negotiate request, initsmb2rsphdr is called for smb1 negotiate request since needneg is set to false. This patch ignore smb1...

Linux kernel security vulnerabilities

The Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel that stems from the fact that ksmbd always returns the first request smb2 header in a composite request...