[Bug 294768] fdescfs: `fdesc_getattr` mutates `vp->v_type` to `VLNK` on first `stat()`, breaking subsequent `open()` of pipe-fd entries on `linrdlnk` mounts

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=294768

--- Comment #2 from [email protected] ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=fbecfc4aa028964f972a0457809aa041d415f61b

commit fbecfc4aa028964f972a0457809aa041d415f61b
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2026-05-03 19:09:15 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2026-05-03 19:58:36 +0000

    fdescfs: do not change vnode type on VOP_GETATTR()

    There is no point to do it.  The VNON type is good enough for fdescfs
    operations, and changing the type on stat(2) is arbitrary and does not
    serve much purpose, because we recalculate the returned file type on
    each stat(2) anyway.

    But setting the type to VLNK has undesired consequence of namei()
    trying VOP_READLINK() there, which might fail since it defer the
    calculation of path to vn_fullpath().

    Submitted by:   Mike <[email protected]>
    PR:     294768
    MFC after:      2 weeks

 sys/fs/fdescfs/fdesc_vnops.c | 1 -
 1 file changed, 1 deletion(-)

-- 
You are receiving this mail because:
You are the assignee for the bug.