]> git.baikalelectronics.ru Git - kernel.git/commit
would_dump: handle idmapped mounts
authorChristian Brauner <christian.brauner@ubuntu.com>
Thu, 21 Jan 2021 13:19:41 +0000 (14:19 +0100)
committerChristian Brauner <christian.brauner@ubuntu.com>
Sun, 24 Jan 2021 13:27:19 +0000 (14:27 +0100)
commit9a0342d4fca35fac7c7d98d2bf6c38b8fdabb667
tree0ea0d6cd7fd15a870e9b12478316c2b1090da7a2
parentb50b55edf7bf0cb87a6d374037d879019f54f9ed
would_dump: handle idmapped mounts

When determining whether or not to create a coredump the vfs will verify
that the caller is privileged over the inode. Make the would_dump()
helper handle idmapped mounts by passing down the mount's user namespace
of the exec file. If the initial user namespace is passed nothing
changes so non-idmapped mounts will see identical behavior as before.

Link: https://lore.kernel.org/r/20210121131959.646623-23-christian.brauner@ubuntu.com
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
fs/exec.c