diff options
| author | Kees Cook <[email protected]> | 2024-04-25 20:08:50 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-04-26 03:55:59 +0000 |
| commit | e13106952faad91c6e492bf23b7cbdf1b1c269ce (patch) | |
| tree | 8d16261343e213ee7e0a9c2acdc0d3978b31863d /lib/alloc_tag.c | |
| parent | mm: change inlined allocation helpers to account at the call site (diff) | |
| download | kernel-e13106952faad91c6e492bf23b7cbdf1b1c269ce.tar.gz kernel-e13106952faad91c6e492bf23b7cbdf1b1c269ce.zip | |
alloc_tag: Tighten file permissions on /proc/allocinfo
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/[email protected]
Signed-off-by: Kees Cook <[email protected]>
Cc: Kent Overstreet <[email protected]>
Cc: Suren Baghdasaryan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'lib/alloc_tag.c')
| -rw-r--r-- | lib/alloc_tag.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/alloc_tag.c b/lib/alloc_tag.c index 26af9982ddc4..531dbe2f5456 100644 --- a/lib/alloc_tag.c +++ b/lib/alloc_tag.c @@ -129,7 +129,7 @@ size_t alloc_tag_top_users(struct codetag_bytes *tags, size_t count, bool can_sl static void __init procfs_init(void) { - proc_create_seq("allocinfo", 0444, NULL, &allocinfo_seq_op); + proc_create_seq("allocinfo", 0400, NULL, &allocinfo_seq_op); } static bool alloc_tag_module_unload(struct codetag_type *cttype, |