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Commit 84e57b2a authored by Cyrill Gorcunov's avatar Cyrill Gorcunov
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restore: Add prctl validation 

Signed-off-by: 's avatarCyrill Gorcunov <gorcunov@gmail.com>
parent 2e00d019
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Showing with 19 additions and 15 deletions
restorer.c
View file @ 84e57b2a
......@@ -331,21 +331,25 @@ self_len_end:
/*
* Tune up the task fields.
*/
sys_prctl(PR_SET_NAME, (long)core_entry->task_comm, 0, 0, 0);
sys_prctl(PR_SET_MM, PR_SET_MM_START_CODE,
(long)core_entry->mm_start_code, 0, 0);
sys_prctl(PR_SET_MM, PR_SET_MM_END_CODE,
(long)core_entry->mm_end_code, 0, 0);
sys_prctl(PR_SET_MM, PR_SET_MM_START_DATA,
(long)core_entry->mm_start_data, 0, 0);
sys_prctl(PR_SET_MM, PR_SET_MM_END_DATA,
(long)core_entry->mm_end_data, 0, 0);
sys_prctl(PR_SET_MM, PR_SET_MM_START_STACK,
(long)core_entry->mm_start_stack, 0, 0);
sys_prctl(PR_SET_MM, PR_SET_MM_START_BRK,
(long)core_entry->mm_start_brk, 0, 0);
sys_prctl(PR_SET_MM, PR_SET_MM_BRK,
(long)core_entry->mm_brk, 0, 0);
#define sys_prctl_safe(opcode, val1, val2) \
do { \
ret = sys_prctl(opcode, val1, val2, 0, 0); \
if (ret) { \
write_num_n(__LINE__); \
write_num_n(ret); \
goto core_restore_end; \
} \
} while (0)
sys_prctl_safe(PR_SET_NAME, (long)core_entry->task_comm, 0);
sys_prctl_safe(PR_SET_MM, PR_SET_MM_START_CODE, (long)core_entry->mm_start_code);
sys_prctl_safe(PR_SET_MM, PR_SET_MM_END_CODE, (long)core_entry->mm_end_code);
sys_prctl_safe(PR_SET_MM, PR_SET_MM_START_DATA, (long)core_entry->mm_start_data);
sys_prctl_safe(PR_SET_MM, PR_SET_MM_END_DATA, (long)core_entry->mm_end_data);
sys_prctl_safe(PR_SET_MM, PR_SET_MM_START_STACK,(long)core_entry->mm_start_stack);
sys_prctl_safe(PR_SET_MM, PR_SET_MM_START_BRK, (long)core_entry->mm_start_brk);
sys_prctl_safe(PR_SET_MM, PR_SET_MM_BRK, (long)core_entry->mm_brk);
/*
* We need to prepare a valid sigframe here, so
......
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