alloc_tag: Tighten file permissions on /proc/allocinfo

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The /proc/allocinfo file exposes a tremendous about of information about
kernel build details, memory allocations (obviously), and potentially even
image layout (due to ordering).  As this is intended to be consumed by
system owners (like /proc/slabinfo), use the same file permissions as
there: 0400.

Link: https://lkml.kernel.org/r/20240425200844.work.184-kees@kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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Kees Cook 2024-04-25 13:08:50 -07:00 • committed by Andrew Morton

parent 2c321f3f70

commit e13106952f

1 changed files with 1 additions and 1 deletions

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lib/alloc_tag.c

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