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vsftpd.29624
seccomp-fixes.patch
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File seccomp-fixes.patch of Package vsftpd.29624
Index: vsftpd-3.0.4/seccompsandbox.c =================================================================== --- vsftpd-3.0.4.orig/seccompsandbox.c 2021-06-15 08:06:29.165512830 +0000 +++ vsftpd-3.0.4/seccompsandbox.c 2021-06-15 08:06:42.778484808 +0000 @@ -18,6 +18,7 @@ #include "utility.h" #include <errno.h> +#include <stdio.h> #include <netinet/in.h> #include <netinet/tcp.h> @@ -63,6 +64,7 @@ #define kMaxSyscalls 100 +//#define DEBUG_SIGSYS #ifdef DEBUG_SIGSYS #include <signal.h> @@ -71,7 +73,10 @@ void handle_sigsys(int sig) { - (void) sig; + char str[21]; + snprintf(str, 21, "Rejected syscall %d", sig); + + die(str); } #endif @@ -586,8 +591,8 @@ seccomp_sandbox_lockdown() p_filter->code = BPF_LD+BPF_W+BPF_ABS; p_filter->jt = 0; p_filter->jf = 0; - /* Offset 4 for syscall architecture. */ - p_filter->k = 4; + /* Offset 5 for syscall architecture. */ + p_filter->k = 5; p_filter++; p_filter->code = BPF_JMP+BPF_JEQ+BPF_K; p_filter->jt = 1;
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