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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /fs/crypto/Kconfig | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
check_kfunc_arg() allows bpf_register_is_null() for nullable arguments
w/o marking the underlying scalar register precise. Hence a checkpoint
created on such a path would prune against arbitrary scalar value.
Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'fs/crypto/Kconfig')
| -rw-r--r-- | fs/crypto/Kconfig | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/fs/crypto/Kconfig b/fs/crypto/Kconfig new file mode 100644 index 000000000..cd934e31d --- /dev/null +++ b/fs/crypto/Kconfig @@ -0,0 +1,40 @@ +# SPDX-License-Identifier: GPL-2.0-only +config FS_ENCRYPTION + bool "FS Encryption (Per-file encryption)" + select BLK_INLINE_ENCRYPTION if BLOCK + select BLK_INLINE_ENCRYPTION_FALLBACK if BLOCK + select CRYPTO + select CRYPTO_SKCIPHER + select CRYPTO_LIB_AES + select CRYPTO_LIB_SHA256 + select CRYPTO_LIB_SHA512 + select KEYS + help + Enable encryption of files and directories. This + feature is similar to ecryptfs, but it is more memory + efficient since it avoids caching the encrypted and + decrypted pages in the page cache. Currently Ext4, + F2FS, UBIFS, and CephFS make use of this feature. + +# Filesystems supporting encryption must select this if FS_ENCRYPTION. This +# allows the algorithms to be built as modules when all the filesystems are, +# whereas selecting them from FS_ENCRYPTION would force them to be built-in. +# +# Note: this option only pulls in the algorithms that filesystem encryption +# needs "by default". If userspace will use "non-default" encryption modes such +# as Adiantum encryption, then those other modes need to be explicitly enabled +# in the crypto API; see Documentation/filesystems/fscrypt.rst for details. +# +# Also note that this option only pulls in the generic implementations of the +# algorithms, not any per-architecture optimized implementations. It is +# strongly recommended to enable optimized implementations too. +config FS_ENCRYPTION_ALGS + tristate + select CRYPTO_AES + select CRYPTO_CBC + select CRYPTO_CTS + select CRYPTO_XTS + +config FS_ENCRYPTION_INLINE_CRYPT + bool + default y if FS_ENCRYPTION && BLOCK |