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Check for invalid offset when submitting an AIO read/write request.

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PiperOrigin-RevId: 202528335
Change-Id: Ic32312cf4337bcb40a7155cb2174e5cd89a280f7
This commit is contained in:
Nicolas Lacasse
2018-06-28 12:55:18 -07:00
committed by Shentubot
parent 8459390cdd
commit 1ceed49ba9
1 changed files with 8 additions and 0 deletions
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pkg/sentry/syscalls/linux/sys_aio.go
+8
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@@ -319,6 +319,14 @@ func submitCallback(t *kernel.Task, id uint64, cb *ioCallback, cbAddr usermem.Ad
return err
}
// Check offset for reads/writes.
switch cb.OpCode {
case _IOCB_CMD_PREAD, _IOCB_CMD_PREADV, _IOCB_CMD_PWRITE, _IOCB_CMD_PWRITEV:
if cb.Offset < 0 {
return syserror.EINVAL
}
}
// Prepare the request.
ctx, ok := t.MemoryManager().LookupAIOContext(t, id)
if !ok {