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linux: fix PTRACE_POKEDATA and PTRACE_POKETEXT.

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Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Edward Tomasz Napierala 2021-01-15 16:57:24 +00:00
parent 7d3310c4fc
commit 47f7345bab
1 changed files with 7 additions and 2 deletions
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9
sys/amd64/linux/linux_ptrace.c
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@ -594,10 +594,15 @@ linux_ptrace(struct thread *td, struct linux_ptrace_args *uap)
error = linux_ptrace_peekuser(td, pid, addr, (void *)uap->data);
break;
case LINUX_PTRACE_POKETEXT:
error = kern_ptrace(td, PT_WRITE_I, pid, addr, uap->data);
break;
case LINUX_PTRACE_POKEDATA:
error = kern_ptrace(td, PT_WRITE_D, pid, addr, uap->data);
if (error != 0)
return (error);
/*
* Linux expects this syscall to write 64 bits, not 32.
*/
error = kern_ptrace(td, PT_WRITE_D, pid,
(void *)(uap->addr + 4), uap->data >> 32);
break;
case LINUX_PTRACE_POKEUSER:
error = linux_ptrace_pokeuser(td, pid, addr, (void *)uap->data);