5.15-stable review patch. If anyone has any objections, please let me know.
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From: Ekaterina Esina eesina@astralinux.ru
[ Upstream commit 181724fc72486dec2bec8803459be05b5162aaa8 ]
Remove extra check after condition, add check after generating key for encryption. The check is needed to return non zero rc before rewriting it with generating key for decryption.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Reviewed-by: Paulo Alcantara (SUSE) pc@manguebit.com Fixes: d70e9fa55884 ("cifs: try opening channels after mounting") Signed-off-by: Ekaterina Esina eesina@astralinux.ru Co-developed-by: Anastasia Belova abelova@astralinux.ru Signed-off-by: Anastasia Belova abelova@astralinux.ru Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/cifs/smb2transport.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c index 390cc5e8c7467..0f2e0ce84a03f 100644 --- a/fs/cifs/smb2transport.c +++ b/fs/cifs/smb2transport.c @@ -430,6 +430,8 @@ generate_smb3signingkey(struct cifs_ses *ses, ptriplet->encryption.context, ses->smb3encryptionkey, SMB3_ENC_DEC_KEY_SIZE); + if (rc) + return rc; rc = generate_key(ses, ptriplet->decryption.label, ptriplet->decryption.context, ses->smb3decryptionkey, @@ -438,9 +440,6 @@ generate_smb3signingkey(struct cifs_ses *ses, return rc; }
- if (rc) - return rc; - #ifdef CONFIG_CIFS_DEBUG_DUMP_KEYS cifs_dbg(VFS, "%s: dumping generated AES session keys\n", __func__); /*