Date: Sat, 1 May 2021 00:39:14 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: d13215b99d0b - stable/12 - pseudofs: limit writes to 1M Message-ID: <202105010039.1410dEW6048322@gitrepo.freebsd.org>
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The branch stable/12 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=d13215b99d0b9d04de111dd469938e6854fc3493 commit d13215b99d0b9d04de111dd469938e6854fc3493 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-04-13 19:48:44 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2021-05-01 00:38:30 +0000 pseudofs: limit writes to 1M (cherry picked from commit 5edf7227ec339f651c7328e63df323f6ef10345f) --- sys/fs/pseudofs/pseudofs_vnops.c | 3 +++ 1 file changed, 3 insertions(+) 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.
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