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| author | Miklos Szeredi <mszeredi@redhat.com> | 2021-06-22 10:15:35 +0300 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2021-06-22 10:15:35 +0300 |
| commit | 49221cf86d18bb66fe95d3338cb33bd4b9880ca5 (patch) | |
| tree | 17e792683ffb717fab3a048a3047510d958b6121 /fs/fuse | |
| parent | 80ef08670d4c28a06a3de954bd350368780bcfef (diff) | |
| download | linux-49221cf86d18bb66fe95d3338cb33bd4b9880ca5.tar.xz | |
fuse: reject internal errno
Don't allow userspace to report errors that could be kernel-internal.
Reported-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Fixes: 334f485df85a ("[PATCH] FUSE - device functions")
Cc: <stable@vger.kernel.org> # v2.6.14
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse')
| -rw-r--r-- | fs/fuse/dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 6e63bcba2a40..b8d58aa08206 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -1867,7 +1867,7 @@ static ssize_t fuse_dev_do_write(struct fuse_dev *fud, } err = -EINVAL; - if (oh.error <= -1000 || oh.error > 0) + if (oh.error <= -512 || oh.error > 0) goto copy_finish; spin_lock(&fpq->lock); |