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authorLinus Torvalds <torvalds@linux-foundation.org>2019-07-11 04:43:43 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2019-07-11 04:43:43 +0300
commit028db3e290f15ac509084c0fc3b9d021f668f877 (patch)
tree7497244a90100f2464403063f88f83a555da03b3 /security/keys/gc.c
parente9a83bd2322035ed9d7dcf35753d3f984d76c6a5 (diff)
downloadlinux-028db3e290f15ac509084c0fc3b9d021f668f877.tar.xz
Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs"
This reverts merge 0f75ef6a9cff49ff612f7ce0578bced9d0b38325 (and thus effectively commits 7a1ade847596 ("keys: Provide KEYCTL_GRANT_PERMISSION") 2e12256b9a76 ("keys: Replace uid/gid/perm permissions checking with an ACL") that the merge brought in). It turns out that it breaks booting with an encrypted volume, and Eric biggers reports that it also breaks the fscrypt tests [1] and loading of in-kernel X.509 certificates [2]. The root cause of all the breakage is likely the same, but David Howells is off email so rather than try to work it out it's getting reverted in order to not impact the rest of the merge window. [1] https://lore.kernel.org/lkml/20190710011559.GA7973@sol.localdomain/ [2] https://lore.kernel.org/lkml/20190710013225.GB7973@sol.localdomain/ Link: https://lore.kernel.org/lkml/CAHk-=wjxoeMJfeBahnWH=9zShKp2bsVy527vo3_y8HfOdhwAAw@mail.gmail.com/ Reported-by: Eric Biggers <ebiggers@kernel.org> Cc: David Howells <dhowells@redhat.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security/keys/gc.c')
-rw-r--r--security/keys/gc.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/security/keys/gc.c b/security/keys/gc.c
index 48c3e124c272..671dd730ecfc 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -151,7 +151,6 @@ static noinline void key_gc_unused_keys(struct list_head *keys)
key_user_put(key->user);
key_put_tag(key->domain_tag);
- key_put_acl(rcu_access_pointer(key->acl));
kfree(key->description);
memzero_explicit(key, sizeof(*key));
@@ -221,6 +220,7 @@ continue_scanning:
if (key->type == key_gc_dead_keytype) {
gc_state |= KEY_GC_FOUND_DEAD_KEY;
set_bit(KEY_FLAG_DEAD, &key->flags);
+ key->perm = 0;
goto skip_dead_key;
} else if (key->type == &key_type_keyring &&
key->restrict_link) {