Blame SOURCES/0187-mount-point-honour-AT_SYMLINK_FOLLOW-correctly.patch
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From 24e6a5d1deac8aae11a6a3a22fb9b71cb77fdb33 Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Sat, 8 Dec 2018 20:21:43 +0100
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Subject: [PATCH] mount-point: honour AT_SYMLINK_FOLLOW correctly
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Fixes: #11092
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(cherry picked from commit be24321f3dae91a166166b239954032727439942)
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Resolves: #1683319
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---
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src/basic/mount-util.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/basic/mount-util.c b/src/basic/mount-util.c
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index ebe41a4c6c..3670b7f591 100644
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--- a/src/basic/mount-util.c
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+++ b/src/basic/mount-util.c
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@@ -109,7 +109,7 @@ static int fd_fdinfo_mnt_id(int fd, const char *filename, int flags, int *mnt_id
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if ((flags & AT_EMPTY_PATH) && isempty(filename))
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xsprintf(path, "/proc/self/fdinfo/%i", fd);
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else {
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- subfd = openat(fd, filename, O_CLOEXEC|O_PATH);
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+ subfd = openat(fd, filename, O_CLOEXEC|O_PATH|(flags & AT_SYMLINK_FOLLOW ? 0 : O_NOFOLLOW));
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if (subfd < 0)
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return -errno;
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