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(parent: 34ea38c) | patch
bpf, arm32: correct check_imm24
authorWang YanQing <udknight@gmail.com>
Fri, 11 May 2018 03:06:34 +0000 (11:06 +0800)
committerDaniel Borkmann <daniel@iogearbox.net>
Tue, 5 Jun 2018 08:46:13 +0000 (10:46 +0200)
commit2b589a7e2bd3eb610a4b7f5e61393481755a4de9
treea9e0ebdb78fa6530ee26bf7c546bef6e5482ed5ftree | snapshot
parent34ea38ca27991466a8fff849514b4181b42ae2ebcommit | diff
bpf, arm32: correct check_imm24

imm24 is signed, so the right range is:

  [-(1<<(24 - 1)), (1<<(24 - 1)) - 1]

Note: this patch also fix a typo.

Fixes: 39c13c204bb1 ("arm: eBPF JIT compiler")
Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: Shubham Bansal <illusionist.neo@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux@armlinux.org.uk
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
arch/arm/net/bpf_jit_32.c diff | blob | history
Domain: System / Kernel; Licenses: GPL-2.0;