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five ksmbd server fixes

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Merge tag '6.11-rc5-server-fixes' of git://git.samba.org/ksmbd

Pull smb server fixes from Steve French:

 - query directory flex array fix

 - fix potential null ptr reference in open

 - fix error message in some open cases

 - two minor cleanups

* tag '6.11-rc5-server-fixes' of git://git.samba.org/ksmbd:
  smb/server: update misguided comment of smb2_allocate_rsp_buf()
  smb/server: remove useless assignment of 'file_present' in smb2_open()
  smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open()
  smb/server: fix return value of smb2_open()
  ksmbd: the buffer of smb2 query dir response has at least 1 byte
This commit is contained in:
Linus Torvalds 2024-08-25 12:15:04 +12:00
commit 780bdc1ba7
2 changed files with 10 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/smb/server/oplock.c
View File

@ -1510,7 +1510,7 @@ void create_lease_buf(u8 *rbuf, struct lease *lease)
* parse_lease_state() - parse lease context containted in file open request
* @open_req: buffer containing smb2 file open(create) request
*
* Return: oplock state, -ENOENT if create lease context not found
* Return: allocated lease context object on success, otherwise NULL
*/
struct lease_ctx_info *parse_lease_state(void *open_req)
{

18
fs/smb/server/smb2pdu.c
View File

@ -519,7 +519,7 @@ int init_smb2_rsp_hdr(struct ksmbd_work *work)
* smb2_allocate_rsp_buf() - allocate smb2 response buffer
* @work: smb work containing smb request buffer
*
* Return: 0 on success, otherwise -ENOMEM
* Return: 0 on success, otherwise error
*/
int smb2_allocate_rsp_buf(struct ksmbd_work *work)
{
@ -2770,8 +2770,8 @@ static int parse_durable_handle_context(struct ksmbd_work *work,
}
}
if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) {
if ((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
req_op_level == SMB2_OPLOCK_LEVEL_BATCH) {
dh_info->CreateGuid =
durable_v2_blob->CreateGuid;
dh_info->persistent =
@ -2791,8 +2791,8 @@ static int parse_durable_handle_context(struct ksmbd_work *work,
goto out;
}
if (((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
req_op_level == SMB2_OPLOCK_LEVEL_BATCH)) {
if ((lc && (lc->req_state & SMB2_LEASE_HANDLE_CACHING_LE)) ||
req_op_level == SMB2_OPLOCK_LEVEL_BATCH) {
ksmbd_debug(SMB, "Request for durable open\n");
dh_info->type = dh_idx;
}
@ -3096,7 +3096,6 @@ int smb2_open(struct ksmbd_work *work)
goto err_out;
}
file_present = true;
idmap = mnt_idmap(path.mnt);
} else {
if (rc != -ENOENT)
@ -3414,7 +3413,7 @@ int smb2_open(struct ksmbd_work *work)
goto err_out1;
}
} else {
if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) {
if (req_op_level == SMB2_OPLOCK_LEVEL_LEASE && lc) {
if (S_ISDIR(file_inode(filp)->i_mode)) {
lc->req_state &= ~SMB2_LEASE_WRITE_CACHING_LE;
lc->is_dir = true;
@ -3713,7 +3712,7 @@ err_out2:
kfree(name);
kfree(lc);
return 0;
return rc;
}
static int readdir_info_level_struct_sz(int info_level)
@ -4409,7 +4408,8 @@ int smb2_query_dir(struct ksmbd_work *work)
rsp->OutputBufferLength = cpu_to_le32(0);
rsp->Buffer[0] = 0;
rc = ksmbd_iov_pin_rsp(work, (void *)rsp,
sizeof(struct smb2_query_directory_rsp));
offsetof(struct smb2_query_directory_rsp, Buffer)
+ 1);
if (rc)
goto err_out;
} else {