Pu Lehui b54b600361 riscv, bpf: Emit fixed-length instructions for BPF_PSEUDO_FUNC ... For BPF_PSEUDO_FUNC instruction, verifier will refill imm with correct addresses of bpf_calls and then run last pass of JIT. Since the emit_imm of RV64 is variable-length, which will emit appropriate length instructions accorroding to the imm, it may broke ctx->offset, and lead to unpredictable problem, such as inaccurate jump. So let's fix it with fixed-length instructions. Fixes: 69c087ba62 ("bpf: Add bpf_for_each_map_elem() helper") Suggested-by: Björn Töpel <bjorn@rivosinc.com> Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Björn Töpel <bjorn@kernel.org> Acked-by: Björn Töpel <bjorn@kernel.org> Link: https://lore.kernel.org/bpf/20221206091410.1584784-1-pulehui@huaweicloud.com		2022-12-06 20:59:27 +01:00
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boot	riscv: dts: sifive unleashed: Add PWM controlled LEDs	2022-10-28 15:27:42 -07:00
configs	riscv: enable CD-ROM file systems in defconfig	2022-08-25 17:01:09 -07:00
errata	Merge patch series "Some style cleanups for recent extension additions"	2022-10-13 08:46:31 -07:00
include	RISC-V Fixes for 6.1-rc3	2022-10-28 17:03:00 -07:00
kernel	RISC-V: vdso: Do not add missing symbols to version section in linker script	2022-11-10 15:06:14 -08:00
kvm	RISC-V: KVM: Fix kvm_riscv_vcpu_timer_pending() for Sstc	2022-10-21 11:52:45 +05:30
lib	riscv: lib: uaccess: fix CSR_STATUS SR_SUM bit	2022-08-10 14:06:31 -07:00
mm	RISC-V Fixes for 6.1-rc5	2022-11-11 09:40:19 -08:00
net	riscv, bpf: Emit fixed-length instructions for BPF_PSEUDO_FUNC	2022-12-06 20:59:27 +01:00
purgatory	riscv/purgatory: Omit use of bin2c	2022-08-11 09:32:34 -07:00
Kbuild	riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild	2022-06-01 22:26:32 -07:00
Kconfig	Merge patch series "Fix RISC-V toolchain extension support detection"	2022-10-27 15:14:07 -07:00
Kconfig.debug	RISC-V: Remove EARLY_PRINTK support	2018-12-17 10:23:46 -08:00
Kconfig.erratas	riscv: make t-head erratas depend on MMU	2022-09-17 01:48:22 -07:00
Kconfig.socs	riscv: Kconfig: Style cleanups	2022-06-30 19:26:16 -07:00
Makefile	Merge patch series "Fix RISC-V toolchain extension support detection"	2022-10-27 15:14:07 -07:00