From 813357fead4adee73f7eca6bbe0e69dfcf514dc6 Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Tue, 23 Jun 2020 21:35:26 -0700 Subject: libnvdimm/security: Fix key lookup permissions As of commit 8c0637e950d6 ("keys: Make the KEY_NEED_* perms an enum rather than a mask") lookup_user_key() needs an explicit declaration of what it wants to do with the key. Add KEY_NEED_SEARCH to fix a warning with the below signature, and fixes the inability to retrieve a key. WARNING: CPU: 15 PID: 6276 at security/keys/permission.c:35 key_task_permission+0xd3/0x140 [..] RIP: 0010:key_task_permission+0xd3/0x140 [..] Call Trace: lookup_user_key+0xeb/0x6b0 ? vsscanf+0x3df/0x840 ? key_validate+0x50/0x50 ? key_default_cmp+0x20/0x20 nvdimm_get_user_key_payload.part.0+0x21/0x110 [libnvdimm] nvdimm_security_store+0x67d/0xb20 [libnvdimm] security_store+0x67/0x1a0 [libnvdimm] kernfs_fop_write+0xcf/0x1c0 vfs_write+0xde/0x1d0 ksys_write+0x68/0xe0 do_syscall_64+0x5c/0xa0 entry_SYSCALL_64_after_hwframe+0x49/0xb3 Fixes: 8c0637e950d6 ("keys: Make the KEY_NEED_* perms an enum rather than a mask") Suggested-by: David Howells Reviewed-by: Dave Jiang Reviewed-by: Ira Weiny Cc: Dan Williams Cc: Vishal Verma Cc: Dave Jiang Cc: Ira Weiny Link: https://lore.kernel.org/r/159297332630.1304143.237026690015653759.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams --- drivers/nvdimm/security.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/nvdimm/security.c b/drivers/nvdimm/security.c index 89b85970912d..4cef69bd3c1b 100644 --- a/drivers/nvdimm/security.c +++ b/drivers/nvdimm/security.c @@ -95,7 +95,7 @@ static struct key *nvdimm_lookup_user_key(struct nvdimm *nvdimm, struct encrypted_key_payload *epayload; struct device *dev = &nvdimm->dev; - keyref = lookup_user_key(id, 0, 0); + keyref = lookup_user_key(id, 0, KEY_NEED_SEARCH); if (IS_ERR(keyref)) return NULL; -- cgit v1.2.3-59-g8ed1b