From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise 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 Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- fs/udf/udfend.h | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 fs/udf/udfend.h (limited to 'fs/udf/udfend.h') diff --git a/fs/udf/udfend.h b/fs/udf/udfend.h new file mode 100644 index 000000000..a4363ac2c --- /dev/null +++ b/fs/udf/udfend.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __UDF_ENDIAN_H +#define __UDF_ENDIAN_H + +#include +#include + +static inline struct kernel_lb_addr lelb_to_cpu(struct lb_addr in) +{ + struct kernel_lb_addr out; + + out.logicalBlockNum = le32_to_cpu(in.logicalBlockNum); + out.partitionReferenceNum = le16_to_cpu(in.partitionReferenceNum); + + return out; +} + +static inline struct lb_addr cpu_to_lelb(struct kernel_lb_addr in) +{ + struct lb_addr out; + + out.logicalBlockNum = cpu_to_le32(in.logicalBlockNum); + out.partitionReferenceNum = cpu_to_le16(in.partitionReferenceNum); + + return out; +} + +static inline struct short_ad lesa_to_cpu(struct short_ad in) +{ + struct short_ad out; + + out.extLength = le32_to_cpu(in.extLength); + out.extPosition = le32_to_cpu(in.extPosition); + + return out; +} + +static inline struct short_ad cpu_to_lesa(struct short_ad in) +{ + struct short_ad out; + + out.extLength = cpu_to_le32(in.extLength); + out.extPosition = cpu_to_le32(in.extPosition); + + return out; +} + +static inline struct kernel_long_ad lela_to_cpu(struct long_ad in) +{ + struct kernel_long_ad out; + + out.extLength = le32_to_cpu(in.extLength); + out.extLocation = lelb_to_cpu(in.extLocation); + + return out; +} + +static inline struct long_ad cpu_to_lela(struct kernel_long_ad in) +{ + struct long_ad out; + + out.extLength = cpu_to_le32(in.extLength); + out.extLocation = cpu_to_lelb(in.extLocation); + + return out; +} + +static inline struct kernel_extent_ad leea_to_cpu(struct extent_ad in) +{ + struct kernel_extent_ad out; + + out.extLength = le32_to_cpu(in.extLength); + out.extLocation = le32_to_cpu(in.extLocation); + + return out; +} + +#endif /* __UDF_ENDIAN_H */ -- cgit v1.3.1