The branch stable/13 has been updated by mjg: URL: https://cgit.FreeBSD.org/src/commit/?id=fa7ebd573910f180e31fedfbd36a984139de72a7
commit fa7ebd573910f180e31fedfbd36a984139de72a7 Author: Mateusz Guzik <[email protected]> AuthorDate: 2021-09-18 08:12:27 +0000 Commit: Mateusz Guzik <[email protected]> CommitDate: 2021-10-11 09:10:13 +0000 vfs: add the missing vnode interlock in vfs_mountroot_shuffle Around v_mountedhere assignment. (cherry picked from commit 0d9e99ce3b1071c76ff5a2d9d4158341c0371c2f) --- sys/kern/vfs_mountroot.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sys/kern/vfs_mountroot.c b/sys/kern/vfs_mountroot.c index 4f80104c311c..7adf63db2dac 100644 --- a/sys/kern/vfs_mountroot.c +++ b/sys/kern/vfs_mountroot.c @@ -367,10 +367,12 @@ vfs_mountroot_shuffle(struct thread *td, struct mount *mpdevfs) error = vinvalbuf(vp, V_SAVE, 0, 0); if (!error) { cache_purge(vp); + VI_LOCK(vp); mporoot->mnt_vnodecovered = vp; vp->v_mountedhere = mporoot; strlcpy(mporoot->mnt_stat.f_mntonname, fspath, MNAMELEN); + VI_UNLOCK(vp); VOP_UNLOCK(vp); } else vput(vp);
