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bpf: use bitCast instead of intCast in ld_imm_impl

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Any 32 bit immediate is allowed in a BPF instruction, including those
greater than the largest positive i32 value.
This commit is contained in:
George Huebner
2025-08-25 08:26:12 -05:00
committed by Alex Rønne Petersen
parent 4cfb58342a
commit 05b7ca6356
1 changed files with 2 additions and 2 deletions
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4
lib/std/os/linux/bpf.zig
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@@ -642,7 +642,7 @@ pub const Insn = packed struct {
.dst = @intFromEnum(dst),
.src = @intFromEnum(src),
.off = 0,
.imm = @as(i32, @intCast(@as(u32, @truncate(imm)))),
.imm = @as(i32, @bitCast(@as(u32, @truncate(imm)))),
};
}
@@ -652,7 +652,7 @@ pub const Insn = packed struct {
.dst = 0,
.src = 0,
.off = 0,
.imm = @as(i32, @intCast(@as(u32, @truncate(imm >> 32)))),
.imm = @as(i32, @bitCast(@as(u32, @truncate(imm >> 32)))),
};
}