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52 lines
1.5 KiB
52 lines
1.5 KiB
3 years ago
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autofs-5.1.7 - add copy length check in umount_autofs_indirect()
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From: Ian Kent <raven@themaw.net>
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Add a source length check before copying to a work buffer in
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umount_autofs_indirect().
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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daemon/indirect.c | 13 +++++++++++--
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2 files changed, 12 insertions(+), 2 deletions(-)
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diff --git a/CHANGELOG b/CHANGELOG
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index 5fdb4c0a..be0b9d85 100644
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--- a/CHANGELOG
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+++ b/CHANGELOG
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@@ -84,6 +84,7 @@
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- fix use of possibly NULL var in lookup_program.c:match_key().
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- fix incorrect print format specifiers in get_pkt().
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- add mapent path length check in handle_packet_expire_direct().
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+- add copy length check in umount_autofs_indirect().
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25/01/2021 autofs-5.1.7
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- make bind mounts propagation slave by default.
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diff --git a/daemon/indirect.c b/daemon/indirect.c
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index 9f2ca6a0..b73c2781 100644
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--- a/daemon/indirect.c
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+++ b/daemon/indirect.c
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@@ -238,10 +238,19 @@ int umount_autofs_indirect(struct autofs_point *ap, const char *root)
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int rv, retries;
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unsigned int unused;
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- if (root)
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+ if (root) {
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+ if (strlen(root) > PATH_MAX) {
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+ error(ap->logopt, "mountpoint path too long");
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+ return 1;
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+ }
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strcpy(mountpoint, root);
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- else
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+ } else {
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+ if (ap->len > PATH_MAX) {
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+ error(ap->logopt, "mountpoint path too long");
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+ return 1;
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+ }
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strcpy(mountpoint, ap->path);
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+ }
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/* If we are trying to shutdown make sure we can umount */
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rv = ops->askumount(ap->logopt, ap->ioctlfd, &unused);
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