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seccomp: fix jump offset

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bol-van 2022-11-23 18:56:10 +03:00
parent 619222b86e
commit 87a77c5932
14 changed files with 2 additions and 2 deletions
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nfq/sec.c
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@ -133,7 +133,7 @@ static bool set_seccomp()
set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr); set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr);
set_filter(&prog.filter[idx++], BPF_JMP + BPF_JGT + BPF_K, 1 + BLOCKED_SYSCALL_COUNT, 0, __X32_SYSCALL_BIT - 1); // fail set_filter(&prog.filter[idx++], BPF_JMP + BPF_JGT + BPF_K, 1 + BLOCKED_SYSCALL_COUNT, 0, __X32_SYSCALL_BIT - 1); // fail
#else #else
set_filter(&prog.filter[idx++], BPF_JMP + BPF_JEQ + BPF_K, 0, 1 + BLOCKED_SYSCALL_COUNT, ARCH_NR); // fail set_filter(&prog.filter[idx++], BPF_JMP + BPF_JEQ + BPF_K, 0, 2 + BLOCKED_SYSCALL_COUNT, ARCH_NR); // fail
set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr); set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr);
#endif #endif

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tpws/sec.c
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@ -133,7 +133,7 @@ static bool set_seccomp()
set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr); set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr);
set_filter(&prog.filter[idx++], BPF_JMP + BPF_JGT + BPF_K, 1 + BLOCKED_SYSCALL_COUNT, 0, __X32_SYSCALL_BIT - 1); // fail set_filter(&prog.filter[idx++], BPF_JMP + BPF_JGT + BPF_K, 1 + BLOCKED_SYSCALL_COUNT, 0, __X32_SYSCALL_BIT - 1); // fail
#else #else
set_filter(&prog.filter[idx++], BPF_JMP + BPF_JEQ + BPF_K, 0, 1 + BLOCKED_SYSCALL_COUNT, ARCH_NR); // fail set_filter(&prog.filter[idx++], BPF_JMP + BPF_JEQ + BPF_K, 0, 2 + BLOCKED_SYSCALL_COUNT, ARCH_NR); // fail
set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr); set_filter(&prog.filter[idx++], BPF_LD + BPF_W + BPF_ABS, 0, 0, syscall_nr);
#endif #endif