Patch "ceph: fix type promotion bug on 32bit systems" has been added to the 5.10-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    ceph: fix type promotion bug on 32bit systems

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ceph-fix-type-promotion-bug-on-32bit-systems.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 07bb00ef00ace88dd6f695fadbba76565756e55c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Date: Sat, 7 Oct 2023 11:52:39 +0300
Subject: ceph: fix type promotion bug on 32bit systems

From: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

commit 07bb00ef00ace88dd6f695fadbba76565756e55c upstream.

In this code "ret" is type long and "src_objlen" is unsigned int.  The
problem is that on 32bit systems, when we do the comparison signed longs
are type promoted to unsigned int.  So negative error codes from
do_splice_direct() are treated as success instead of failure.

Cc: stable@xxxxxxxxxxxxxxx
Fixes: 1b0c3b9f91f0 ("ceph: re-org copy_file_range and fix some error paths")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Reviewed-by: Xiubo Li <xiubli@xxxxxxxxxx>
Signed-off-by: Ilya Dryomov <idryomov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/ceph/file.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -2428,7 +2428,7 @@ static ssize_t __ceph_copy_file_range(st
 		ret = do_splice_direct(src_file, &src_off, dst_file,
 				       &dst_off, src_objlen, flags);
 		/* Abort on short copies or on error */
-		if (ret < src_objlen) {
+		if (ret < (long)src_objlen) {
 			dout("Failed partial copy (%zd)\n", ret);
 			goto out;
 		}


Patches currently in stable-queue which might be from dan.carpenter@xxxxxxxxxx are

queue-5.10/ixgbe-fix-crash-with-empty-vf-macvlan-list.patch
queue-5.10/mlxsw-fix-mlxsw_sp2_nve_vxlan_learning_set-return-ty.patch
queue-5.10/ceph-fix-type-promotion-bug-on-32bit-systems.patch



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux