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fs/tar: only store numeric uid/gid

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If a target user is asigned a UID (e.g. 1000) that happens to also exist
on the build machine, tar will happily store the username for that user.

This can be seen by some as potential information disclosure.

Instruct tar to just store the numeric uid/gid.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Yann E. MORIN
2015-02-16 18:49:16 +01:00
committed by Thomas Petazzoni
parent f290046f66
commit 66ee6dc872
1 changed files with 1 additions and 1 deletions
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2
fs/tar/tar.mk
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@@ -7,7 +7,7 @@
TAR_OPTS := $(call qstrip,$(BR2_TARGET_ROOTFS_TAR_OPTIONS))
define ROOTFS_TAR_CMD
tar -c$(TAR_OPTS)f $@ -C $(TARGET_DIR) .
tar -c$(TAR_OPTS)f $@ --numeric-owner -C $(TARGET_DIR) .
endef
$(eval $(call ROOTFS_TARGET,tar))