Thread (26 messages) 26 messages, 5 authors, 2022-03-11
STALE1565d LANDED

[PATCH v3 7/9] bpf-lsm: Make bpf_lsm_kernel_read_file() as sleepable

From: Roberto Sassu <roberto.sassu@huawei.com>
Date: 2022-03-02 11:18:31
Also in: bpf, linux-integrity, linux-kselftest, linux-security-module, lkml
Subsystem: bpf [general] (safe dynamic programs and tools), bpf [security & lsm] (security audit and enforcement using bpf), the rest · Maintainers: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, KP Singh, Matt Bobrowski, Linus Torvalds

Make bpf_lsm_kernel_read_file() as sleepable, so that bpf_ima_inode_hash()
or bpf_ima_file_hash() can be called inside the implementation of this
hook.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
---
 kernel/bpf/bpf_lsm.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/kernel/bpf/bpf_lsm.c b/kernel/bpf/bpf_lsm.c
index e8d27af5bbcc..064eccba641d 100644
--- a/kernel/bpf/bpf_lsm.c
+++ b/kernel/bpf/bpf_lsm.c
@@ -187,6 +187,7 @@ BTF_ID(func, bpf_lsm_inode_setxattr)
 BTF_ID(func, bpf_lsm_inode_symlink)
 BTF_ID(func, bpf_lsm_inode_unlink)
 BTF_ID(func, bpf_lsm_kernel_module_request)
+BTF_ID(func, bpf_lsm_kernel_read_file)
 BTF_ID(func, bpf_lsm_kernfs_init_security)
 
 #ifdef CONFIG_KEYS
-- 
2.32.0
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help