Date: Fri, 23 Apr 2021 11:15:18 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: 131336da4072 - stable/13 - pseudofs: limit writes to 1M Message-ID: <202104231115.13NBFIrK013447@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=131336da407264e9876a69291a028b91e804df16 commit 131336da407264e9876a69291a028b91e804df16 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2021-04-13 19:48:44 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2021-04-23 11:14:09 +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 e386ceba71f8..29bb1544e7ad 100644 --- a/sys/fs/pseudofs/pseudofs_vnops.c +++ b/sys/fs/pseudofs/pseudofs_vnops.c @@ -1102,6 +1102,9 @@ 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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