The branch main has been updated by manu: URL: https://cgit.FreeBSD.org/src/commit/?id=867b4decb4d50579152e52c594632cdc0f6266ff
commit 867b4decb4d50579152e52c594632cdc0f6266ff Author: Emmanuel Vadot <[email protected]> AuthorDate: 2022-01-31 13:46:16 +0000 Commit: Emmanuel Vadot <[email protected]> CommitDate: 2022-02-04 13:31:08 +0000 lindebugfs: Fix write For write operation pseudofs creates an sbuf with the data. Use this data instead of the uio as it's not usable anymore after uiomove. Reviewed by: hselasky MFC after: 1 week Sponsored by: Beckhoff Automation GmbH & Co. KG Differential Revision: https://reviews.freebsd.org/D34114 --- sys/compat/lindebugfs/lindebugfs.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sys/compat/lindebugfs/lindebugfs.c b/sys/compat/lindebugfs/lindebugfs.c index 63161eedf14f..8eaa41412fd2 100644 --- a/sys/compat/lindebugfs/lindebugfs.c +++ b/sys/compat/lindebugfs/lindebugfs.c @@ -130,8 +130,14 @@ debugfs_fill(PFS_FILL_ARGS) if ((rc = linux_set_current_flags(curthread, M_NOWAIT))) return (rc); vn.v_data = d->dm_data; - buf = uio->uio_iov[0].iov_base; - len = min(uio->uio_iov[0].iov_len, uio->uio_resid); + if (uio->uio_rw == UIO_READ) { + buf = uio->uio_iov[0].iov_base; + len = min(uio->uio_iov[0].iov_len, uio->uio_resid); + } else { + sbuf_finish(sb); + buf = sbuf_data(sb); + len = sbuf_len(sb); + } off = 0; lf.private_data = NULL; rc = d->dm_fops->open(&vn, &lf);
