fs: Add a missing permission check to do_umount

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Accessing do_remount_sb should require global CAP_SYS_ADMIN, but
only one of the two call sites was appropriately protected.

Fixes CVE-2014-7975.

Signed-off-by: Andy Lutomirski <luto@amacapital.net>

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Andy Lutomirski 2014-10-08 12:32:47 -07:00

parent bfe01a5ba2

commit a1480dcc3c

1 changed files with 2 additions and 0 deletions

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fs/namespace.c

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