diff options
Diffstat (limited to 'results/classifier/zero-shot-user-mode/output/instruction/1394')
| -rw-r--r-- | results/classifier/zero-shot-user-mode/output/instruction/1394 | 67 |
1 files changed, 0 insertions, 67 deletions
diff --git a/results/classifier/zero-shot-user-mode/output/instruction/1394 b/results/classifier/zero-shot-user-mode/output/instruction/1394 deleted file mode 100644 index 9ac91871..00000000 --- a/results/classifier/zero-shot-user-mode/output/instruction/1394 +++ /dev/null @@ -1,67 +0,0 @@ -instruction: 0.449 -runtime: 0.318 -syscall: 0.233 - - - -Byte-swapping issue in getresuid on qemu-user-sparc64 -Description of problem: -When calling getresuid() in the big-endian sparc64 guest, the uid_t values are written with their 16-bit halves reversed. - -For example, the UID 0x000003e8 (1000) becomes 0x03e80000. -Steps to reproduce: -A minimal test case looks like this: -```c -#define _GNU_SOURCE -#include <stdio.h> -#include <sys/types.h> -#include <pwd.h> -#include <unistd.h> - -int main(int argc, char **argv) { - struct passwd *pw = getpwuid(geteuid()); - if (pw == NULL) { - perror("getpwuid failure"); - return 1; - } - printf("getpwuid()->pw_uid=0x%08x\n", pw->pw_uid); - - uid_t ruid = 0, euid = 0, suid = 0; - if (getresuid(&ruid, &euid, &suid) != 0) { - perror("getresuid failure"); - return 1; - } - printf("getresuid()->suid=0x%08x\n", suid); - - return 0; -} -``` - -Compile and run with: -``` -$ sparc64-linux-gnu-gcc -Wall -O0 -g -o sid-sparc64/test test.c -$ sudo chroot sid-sparc64 -[chroot] $ qemu-sparc64-static ./test -``` - -Alternatively, static compilation without a chroot is also possible (despite a warning about `getpwuid()`): -``` -$ sparc64-linux-gnu-gcc -static -Wall -O0 -g -o test test.c -$ qemu-sparc64-static ./test -``` - -Expected output: -``` -$ ./test -getpwuid()->pw_uid=0x000003e8 -getresuid()->suid=0x000003e8 -``` - -Actual output: -``` -$ ./test -getpwuid()->pw_uid=0x000003e8 -getresuid()->suid=0x03e80000 -``` -Additional information: -I'm not sure if this is a glibc, qemu or kernel issue, but it doesn't occur outside qemu. |
