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| author | David Sterba <dsterba@suse.com> | 2023-11-14 19:44:11 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-08 10:52:20 +0300 |
| commit | 4a1a4bf2261e0772d780a98fabfbed718b83ba3a (patch) | |
| tree | 6646e1ca7ba271c7a9ed366b7f50f6a7e7bdc055 /fs/btrfs | |
| parent | 33357859faf221c0cb743cce45901f322b371a9b (diff) | |
| download | linux-4a1a4bf2261e0772d780a98fabfbed718b83ba3a.tar.xz | |
btrfs: fix 64bit compat send ioctl arguments not initializing version member
commit 5de0434bc064606d6b7467ec3e5ad22963a18c04 upstream.
When the send protocol versioning was added in 5.16 e77fbf990316
("btrfs: send: prepare for v2 protocol"), the 32/64bit compat code was
not updated (added by 2351f431f727 ("btrfs: fix send ioctl on 32bit with
64bit kernel")), missing the version struct member. The compat code is
probably rarely used, nobody reported any bugs.
Found by tool https://github.com/jirislaby/clang-struct .
Fixes: e77fbf990316 ("btrfs: send: prepare for v2 protocol")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/btrfs')
| -rw-r--r-- | fs/btrfs/ioctl.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 4cb4065453dd..0b120716aeb9 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -4351,6 +4351,7 @@ static int _btrfs_ioctl_send(struct inode *inode, void __user *argp, bool compat arg->clone_sources = compat_ptr(args32.clone_sources); arg->parent_root = args32.parent_root; arg->flags = args32.flags; + arg->version = args32.version; memcpy(arg->reserved, args32.reserved, sizeof(args32.reserved)); #else |