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| author | Konstantin Belousov <kib@FreeBSD.org> | 2022-09-18 13:28:11 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2022-10-08 00:29:35 +0000 |
| commit | 064d5d4dee053f70ff82f9a1f98ed42e38f36b47 (patch) | |
| tree | 3f657bff798c006be1b041cac3b7dfdfd087bde0 | |
| parent | 27ec1f0833a153c4052c74e0863c556057735b26 (diff) | |
| download | src-064d5d4dee053f70ff82f9a1f98ed42e38f36b47.tar.gz src-064d5d4dee053f70ff82f9a1f98ed42e38f36b47.zip | |
tmpfs: disallow truncation to set file size past RLIMIT_FSIZE
PR: 164793
(cherry picked from commit b5b16659c5aceb9caa0a9b76c7746e1d12a505ce)
| -rw-r--r-- | sys/fs/tmpfs/tmpfs_subr.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c index 6c8d9bd9a0ff..f60dc81c648c 100644 --- a/sys/fs/tmpfs/tmpfs_subr.c +++ b/sys/fs/tmpfs/tmpfs_subr.c @@ -2045,6 +2045,10 @@ tmpfs_chsize(struct vnode *vp, u_quad_t size, struct ucred *cred, if (node->tn_flags & (IMMUTABLE | APPEND)) return (EPERM); + error = vn_rlimit_trunc(size, td); + if (error != 0) + return (error); + error = tmpfs_truncate(vp, size); /* * tmpfs_truncate will raise the NOTE_EXTEND and NOTE_ATTRIB kevents |