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| author | Konstantin Belousov <kib@FreeBSD.org> | 2021-04-13 19:48:44 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2021-05-01 00:38:30 +0000 |
| commit | d13215b99d0b9d04de111dd469938e6854fc3493 (patch) | |
| tree | 5b12cac75d8a3a83e5749955e0647b01e40efbea | |
| parent | 72e1884f593f9b86c9ea4e74d02449f6678770dd (diff) | |
| download | src-d13215b99d0b9d04de111dd469938e6854fc3493.tar.gz src-d13215b99d0b9d04de111dd469938e6854fc3493.zip | |
pseudofs: limit writes to 1M
(cherry picked from commit 5edf7227ec339f651c7328e63df323f6ef10345f)
| -rw-r--r-- | sys/fs/pseudofs/pseudofs_vnops.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/fs/pseudofs/pseudofs_vnops.c b/sys/fs/pseudofs/pseudofs_vnops.c index 6c025547b71b..510b6936d2fa 100644 --- a/sys/fs/pseudofs/pseudofs_vnops.c +++ b/sys/fs/pseudofs/pseudofs_vnops.c @@ -996,6 +996,9 @@ pfs_write(struct vop_write_args *va) if (pn->pn_fill == NULL) PFS_RETURN (EIO); + if (uio->uio_resid > PFS_MAXBUFSIZ) + PFS_RETURN (EIO); + /* * This is necessary because either process' privileges may * have changed since the open() call. |