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authorGiuseppe Scrivano <gscrivan@redhat.com>2022-02-02 10:03:13 +0100
committerGiuseppe Scrivano <gscrivan@redhat.com>2022-02-02 10:03:18 +0100
commitc4dfd004ad7efedb48ffa239e65bc9cdcfa31ed2 (patch)
treed94923d7f6582852a48863db39517bde824979ae /libpod/container_internal_linux.go
parent6f491e21aa291ac0e9cbda5f41e7dc8b87fe160c (diff)
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libpod: enforce noexec,nosuid,nodev for /dev/shm
these mount flags are already used for the /dev/shm mount on the host, but they are not set for the bind mount itself. Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Diffstat (limited to 'libpod/container_internal_linux.go')
-rw-r--r--libpod/container_internal_linux.go6
1 files changed, 6 insertions, 0 deletions
diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go
index 5cc2a78fc..86d8586d0 100644
--- a/libpod/container_internal_linux.go
+++ b/libpod/container_internal_linux.go
@@ -510,6 +510,9 @@ func (c *Container) generateSpec(ctx context.Context) (*spec.Spec, error) {
if c.IsReadOnly() && dstPath != "/dev/shm" {
newMount.Options = append(newMount.Options, "ro", "nosuid", "noexec", "nodev")
}
+ if dstPath == "/dev/shm" && c.state.BindMounts["/dev/shm"] == c.config.ShmDir {
+ newMount.Options = append(newMount.Options, "nosuid", "noexec", "nodev")
+ }
if !MountExists(g.Mounts(), dstPath) {
g.AddMount(newMount)
} else {
@@ -1570,6 +1573,9 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
if c.IsReadOnly() && dstPath != "/dev/shm" {
newMount.Options = append(newMount.Options, "ro", "nosuid", "noexec", "nodev")
}
+ if dstPath == "/dev/shm" && c.state.BindMounts["/dev/shm"] == c.config.ShmDir {
+ newMount.Options = append(newMount.Options, "nosuid", "noexec", "nodev")
+ }
if !MountExists(g.Mounts(), dstPath) {
g.AddMount(newMount)
}