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fstatat(2): restore AT_EMPTY_PATH handling

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Fixes:	cb858340dc
Reported by:	markj
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Konstantin Belousov 2023-05-02 18:11:39 +03:00
parent 6f378116e9
commit a1d71cebc0
1 changed files with 5 additions and 1 deletions
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6
sys/kern/vfs_syscalls.c
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@ -2438,8 +2438,12 @@ kern_statat(struct thread *td, int flag, int fd, const char *path,
AT_SYMLINK_NOFOLLOW | AT_EMPTY_PATH) | LOCKSHARED | LOCKLEAF |
AUDITVNODE1, pathseg, path, fd, &cap_fstat_rights);
if ((error = namei(&nd)) != 0)
if ((error = namei(&nd)) != 0) {
if (error == ENOTDIR &&
(nd.ni_resflags & NIRES_EMPTYPATH) != 0)
error = kern_fstat(td, fd, sbp);
return (error);
}
error = VOP_STAT(nd.ni_vp, sbp, td->td_ucred, NOCRED);
NDFREE_PNBUF(&nd);
vput(nd.ni_vp);