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linux/fs/smb/server
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Namjae Jeon e8bb506e6e ksmbd: use memcmp() to compare ClientGUIDs 
ClientGUID is a fixed-size binary value and can contain embedded NUL
bytes. strncmp() stops comparing at the first NUL byte, so different
ClientGUID values can incorrectly be treated as equal.

Use memcmp() in SMB3 multichannel session binding and
FSCTL_VALIDATE_NEGOTIATE_INFO to compare all SMB2_CLIENT_GUID_SIZE
bytes.

Fixes: f5a544e3ba ("ksmbd: add support for SMB3 multichannel")
Fixes: e2f34481b2 ("cifsd: add server-side procedures for SMB3")
Reported-by: Samu <nomomentomori@gmail.com>
Suggested-by: Samu <nomomentomori@gmail.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
History 2026-07-30 18:45:57 -05:00
..
mgmt ksmbd: remove stale channels from all sessions on teardown 2026-07-16 10:18:25 -05:00
asn1.c ksmbd: use __GFP_RETRY_MAYFAIL 2024-11-25 18:58:02 -06:00
asn1.h smb: move client and server files to common directory fs/smb 2023-05-24 16:29:21 -05:00
auth.c ksmbd: handle channel binding with a different user 2026-07-06 07:55:41 -05:00
auth.h ksmbd: fix multichannel binding and enforce channel limit 2026-07-06 07:55:41 -05:00
compress.c ksmbd: reject undersized decompressed SMB2 requests 2026-07-22 09:54:10 -05:00
compress.h ksmbd: compress SMB2 READ responses 2026-06-16 18:57:22 -05:00
connection.c ksmbd: validate minimum PDU size for transform requests 2026-07-22 09:54:10 -05:00
connection.h ksmbd: reject repeated SMB2 NEGOTIATE requests 2026-07-30 18:45:57 -05:00
crypto_ctx.c ksmbd: Use AES-CMAC library for SMB3 signature calculation 2026-04-22 08:11:23 -05:00
crypto_ctx.h ksmbd: Use AES-CMAC library for SMB3 signature calculation 2026-04-22 08:11:23 -05:00
glob.h ksmbd: use __GFP_RETRY_MAYFAIL 2024-11-25 18:58:02 -06:00
Kconfig smb: smbdirect: move fs/smb/common/smbdirect/ to fs/smb/smbdirect/ 2026-04-22 19:00:41 -05:00
ksmbd_netlink.h ksmbd: add max ip connections parameter 2025-09-30 21:37:54 -05:00
ksmbd_spnego_negtokeninit.asn1 treewide: Add SPDX identifier to IETF ASN.1 modules 2023-10-27 18:04:28 +08:00
ksmbd_spnego_negtokentarg.asn1 treewide: Add SPDX identifier to IETF ASN.1 modules 2023-10-27 18:04:28 +08:00
ksmbd_work.c ksmbd: keep common response iovecs in the work item 2026-06-22 20:15:04 -05:00
ksmbd_work.h ksmbd: fix outstanding credit leak on abort and error paths 2026-06-30 21:29:46 -05:00
Makefile ksmbd: negotiate and decode SMB2 compression 2026-06-16 18:57:22 -05:00
misc.c ksmbd: treat unnamed DATA stream as base file 2026-06-22 20:15:04 -05:00
misc.h ksmbd: fix path resolution in ksmbd_vfs_kern_path_create 2026-06-16 18:57:22 -05:00
ndr.c ksmbd: use __GFP_RETRY_MAYFAIL 2024-11-25 18:58:02 -06:00
ndr.h smb: move client and server files to common directory fs/smb 2023-05-24 16:29:21 -05:00
ntlmssp.h smb: move client and server files to common directory fs/smb 2023-05-24 16:29:21 -05:00
oplock.c ksmbd: pin conn during async oplock break notification 2026-07-16 10:18:25 -05:00
oplock.h ksmbd: avoid level II oplock break notification on unlink 2026-06-22 20:15:05 -05:00
proc.c ksmbd: add procfs interface for runtime monitoring and statistics 2026-02-08 20:25:16 -06:00
server.c ksmbd: enforce signing required by the session 2026-07-22 09:54:03 -05:00
server.h ksmbd: add max ip connections parameter 2025-09-30 21:37:54 -05:00
smb2misc.c ksmbd: validate compound request size before reading StructureSize2 2026-07-16 10:18:25 -05:00
smb2ops.c ksmbd: add procfs interface for runtime monitoring and statistics 2026-02-08 20:25:16 -06:00
smb2pdu.c ksmbd: use memcmp() to compare ClientGUIDs 2026-07-30 18:45:57 -05:00
smb2pdu.h smb/client: refresh allocation after EOF-extending fallocate 2026-07-13 10:37:55 -05:00
smb_common.c ksmbd: reject repeated SMB2 NEGOTIATE requests 2026-07-30 18:45:57 -05:00
smb_common.h smb: move filesystem_vol_info into common/fscc.h 2026-04-12 18:07:54 -05:00
smbacl.c ksmbd: validate ACE size against SID sub-authorities 2026-07-22 09:54:10 -05:00
smbacl.h ksmbd: fix OOB write in QUERY_INFO for compound requests 2026-03-29 22:07:45 -05:00
stats.h ksmbd: add procfs interface for runtime monitoring and statistics 2026-02-08 20:25:16 -06:00
transport_ipc.c ksmbd: validate response sizes in ipc_validate_msg() 2026-04-18 12:19:59 -05:00
transport_ipc.h ksmbd: Remove unused functions 2025-01-15 23:24:51 -06:00
transport_rdma.c smb: smbdirect: introduce and use include/linux/smbdirect.h 2026-05-01 16:24:25 -05:00
transport_rdma.h smb: smbdirect: introduce and use include/linux/smbdirect.h 2026-05-01 16:24:25 -05:00
transport_tcp.c smb: server: fix max_connections off-by-one in tcp accept path 2026-04-18 12:19:59 -05:00
transport_tcp.h ksmbd: fix use-after-free in __smb2_lease_break_noti() 2025-04-14 22:21:26 -05:00
unicode.c ksmbd: use __GFP_RETRY_MAYFAIL 2024-11-25 18:58:02 -06:00
unicode.h fs/smb: Swing unicode common code from smb->NLS 2023-08-30 08:55:51 -05:00
vfs.c ksmbd: preserve VFS inherited POSIX ACL mask 2026-07-22 09:54:01 -05:00
vfs.h smb/server: implement FSCTL_SET_COMPRESSION ioctl handler 2026-06-16 18:57:21 -05:00
vfs_cache.c ksmbd: fix use-after-free in __close_file_table_ids() 2026-07-30 18:45:57 -05:00
vfs_cache.h ksmbd: coalesce sub-15ms write time updates on close 2026-07-06 07:55:41 -05:00
xattr.h ksmbd: Correct typos in multiple comments across various files 2024-09-25 21:33:22 -05:00