syscall.sh / x86 / setuid
setuid
set user identity
sys_setuid16(old_uid_t uid)| number | 23 (0x17) |
|---|---|
| abi | i386 |
| entry point | sys_setuid16 |
| since | Linux 3.3 |
| man page | setuid(2) |
| source | elixir.bootlin.com |
Registers
| register | value |
|---|---|
eax | 23, the syscall number |
ebx | old_uid_t uid |
eax | the return value |
Then run int 0x80 to enter the kernel.
Same syscall on other architectures
- x64 105
- arm64 146
- arm 23
- riscv64 146
- x32 1073741929
- loongarch64 146
- ppc64 23
- ppc 23
- s390x 213
- mips64 5103
- mipsn32 6103
- mipso32 4023
- alpha 23
- arc 146
- csky 146
- hexagon 146
- m68k 23
- microblaze 23
- nios2 146
- openrisc 146
- parisc 23
- sh 23
- sparc 23
- sparc64 23
- xtensa 136
Get this as JSON: https://api.syscall.sh/v2/syscalls/x86/setuid