Commit 8ced9279 authored by Song Liu's avatar Song Liu Committed by Gu Bowen
Browse files

bpf: lsm: Set bpf_lsm_blob_sizes.lbs_task to 0 

stable inclusion
from stable-v6.6.54
commit b3c10ac84c5a544ccd92ee4f891441df91a8cfbc
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IAW1S1
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=b3c10ac84c5a544ccd92ee4f891441df91a8cfbc



--------------------------------

commit 300a90b2cb5d442879e6398920c49aebbd5c8e40 upstream.

bpf task local storage is now using task_struct->bpf_storage, so
bpf_lsm_blob_sizes.lbs_task is no longer needed. Remove it to save some
memory.

Fixes: a10787e6 ("bpf: Enable task local storage for tracing programs")
Cc: stable@vger.kernel.org
Cc: KP Singh <kpsingh@kernel.org>
Cc: Matt Bobrowski <mattbobrowski@google.com>
Signed-off-by: default avatarSong Liu <song@kernel.org>
Acked-by: default avatarMatt Bobrowski <mattbobrowski@google.com>
Link: https://lore.kernel.org/r/20240911055508.9588-1-song@kernel.org


Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarGu Bowen <gubowen5@huawei.com>
parent 723be560

security/bpf/hooks.c

+0 −1
Original line number Diff line number Diff line
@@ -24,7 +24,6 @@ static int __init bpf_lsm_init(void) 


struct lsm_blob_sizes bpf_lsm_blob_sizes __ro_after_init = {

	.lbs_inode = sizeof(struct bpf_storage_blob),

	.lbs_task = sizeof(struct bpf_storage_blob),

};



DEFINE_LSM(bpf) = {