diff options
Diffstat (limited to 'executor/common_linux.h')
| -rw-r--r-- | executor/common_linux.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/executor/common_linux.h b/executor/common_linux.h index f887551cc..13014e33e 100644 --- a/executor/common_linux.h +++ b/executor/common_linux.h @@ -77,9 +77,10 @@ #include <stdio.h> #include <sys/stat.h> #endif -#if defined(SYZ_EXECUTOR) || defined(__NR_syz_open_dev) +#if defined(SYZ_EXECUTOR) || defined(__NR_syz_open_dev) || defined(__NR_syz_open_procfs) #include <fcntl.h> #include <stdio.h> +#include <string.h> #include <sys/stat.h> #endif #if defined(SYZ_EXECUTOR) || defined(__NR_syz_fuse_mount) || defined(__NR_syz_fuseblk_mount) @@ -561,6 +562,27 @@ static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2) } #endif +#if defined(SYZ_EXECUTOR) || defined(__NR_syz_open_procfs) +static uintptr_t syz_open_procfs(uintptr_t a0, uintptr_t a1) +{ + // syz_open_procfs(pid pid, file ptr[in, string[procfs_file]]) fd + + char buf[128]; + memset(buf, 0, sizeof(buf)); + if (a0 == 0) { + NONFAILING(snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1)); + } else if (a0 == (uintptr_t)-1) { + NONFAILING(snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1)); + } else { + NONFAILING(snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1)); + } + int fd = open(buf, O_RDWR); + if (fd == -1) + fd = open(buf, O_RDONLY); + return fd; +} +#endif + #if defined(SYZ_EXECUTOR) || defined(__NR_syz_open_pts) static uintptr_t syz_open_pts(uintptr_t a0, uintptr_t a1) { |