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| author | Konstantin Belousov <kib@FreeBSD.org> | 2022-09-18 13:28:11 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2022-09-24 16:41:30 +0000 |
| commit | b5b16659c5aceb9caa0a9b76c7746e1d12a505ce (patch) | |
| tree | 7c7574eff4b48e9a9ec3dddffa29be743399c424 | |
| parent | 701b73858e3afa15d8ca2ea4aa480173ccc5960e (diff) | |
| download | src-b5b16659c5aceb9caa0a9b76c7746e1d12a505ce.tar.gz src-b5b16659c5aceb9caa0a9b76c7746e1d12a505ce.zip | |
tmpfs: disallow truncation to set file size past RLIMIT_FSIZE
PR: 164793
Reviewed by: asomers, jah, markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 2 weeks
Differential revision: https://reviews.freebsd.org/D36625
| -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 be1eef1c3d89..7d589b1c193d 100644 --- a/sys/fs/tmpfs/tmpfs_subr.c +++ b/sys/fs/tmpfs/tmpfs_subr.c @@ -2120,6 +2120,10 @@ 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 |