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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-31 13:49:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-05-31 13:49:50 -0700 |
| commit | 41e7231fab9d76e906b6d8abe09c44c7b9656d33 (patch) | |
| tree | f250117954733a4827e5dd9b313c52314895da91 /fs/cifs | |
| parent | d266b3f5cac09434eb624af202f9a31307b34a88 (diff) | |
| parent | 31fad7d41e73731f05b8053d17078638cf850fa6 (diff) | |
| download | linux-41e7231fab9d76e906b6d8abe09c44c7b9656d33.tar.bz2 | |
Merge tag 'v5.2-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Four small smb3 fixes, one for stable"
* tag 'v5.2-rc2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
CIFS: cifs_read_allocate_pages: don't iterate through whole page array on ENOMEM
dfs_cache: fix a wrong use of kfree in flush_cache_ent()
fs/cifs/smb2pdu.c: fix buffer free in SMB2_ioctl_free
cifs: fix memory leak of pneg_inbuf on -EOPNOTSUPP ioctl case
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/dfs_cache.c | 4 | ||||
| -rw-r--r-- | fs/cifs/file.c | 4 | ||||
| -rw-r--r-- | fs/cifs/smb2pdu.c | 9 |
3 files changed, 11 insertions, 6 deletions
diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c index 85dc89d3a203..e3e1c13df439 100644 --- a/fs/cifs/dfs_cache.c +++ b/fs/cifs/dfs_cache.c @@ -132,7 +132,7 @@ static inline void flush_cache_ent(struct dfs_cache_entry *ce) return; hlist_del_init_rcu(&ce->ce_hlist); - kfree(ce->ce_path); + kfree_const(ce->ce_path); free_tgts(ce); dfs_cache_count--; call_rcu(&ce->ce_rcu, free_cache_entry); @@ -422,7 +422,7 @@ alloc_cache_entry(const char *path, const struct dfs_info3_param *refs, rc = copy_ref_data(refs, numrefs, ce, NULL); if (rc) { - kfree(ce->ce_path); + kfree_const(ce->ce_path); kmem_cache_free(dfs_cache_slab, ce); ce = ERR_PTR(rc); } diff --git a/fs/cifs/file.c b/fs/cifs/file.c index ce9a5be11df5..06e27ac6d82c 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -3216,7 +3216,9 @@ cifs_read_allocate_pages(struct cifs_readdata *rdata, unsigned int nr_pages) } if (rc) { - for (i = 0; i < nr_pages; i++) { + unsigned int nr_page_failed = i; + + for (i = 0; i < nr_page_failed; i++) { put_page(rdata->pages[i]); rdata->pages[i] = NULL; } diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 710ceb875161..29b699d532ef 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -1054,7 +1054,8 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon) * not supported error. Client should accept it. */ cifs_dbg(VFS, "Server does not support validate negotiate\n"); - return 0; + rc = 0; + goto out_free_inbuf; } else if (rc != 0) { cifs_dbg(VFS, "validate protocol negotiate failed: %d\n", rc); rc = -EIO; @@ -2619,10 +2620,12 @@ SMB2_ioctl_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, void SMB2_ioctl_free(struct smb_rqst *rqst) { + int i; if (rqst && rqst->rq_iov) { cifs_small_buf_release(rqst->rq_iov[0].iov_base); /* request */ - if (rqst->rq_iov[1].iov_len) - kfree(rqst->rq_iov[1].iov_base); + for (i = 1; i < rqst->rq_nvec; i++) + if (rqst->rq_iov[i].iov_base != smb2_padding) + kfree(rqst->rq_iov[i].iov_base); } } |