Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 10 Apr 2006 19:51:15 +0900 (JST) | Subject | Re: [Cent OS 4.3] Bug in do_execve(). | From | Hirokazu Takahashi <> |
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Hi,
The current do_execve() doesn't have the bug. You should let CentOS team know the bug instead.
> Hello. > > Kernel 2.6.9 has a bug that forgets to undo open_exec() in do_execve(). > This bug was fixed in 2.6.10. > > I noticed this bug remains in kernel-2.6.9-34.EL.src.rpm for Cent OS. > Distributors who use 2.6.9-based kernels, please check this. > > ---------- Start of patch ---------- > --- before/exec.c 2006-04-10 11:34:58.000000000 +0900 > +++ after/exec.c 2006-04-10 13:04:51.000000000 +0900 > @@ -1168,8 +1168,11 @@ int do_execve(char * filename, > > retval = -ENOMEM; > bprm = kmalloc(sizeof(*bprm), GFP_KERNEL); > - if (!bprm) > + if (!bprm) { > + allow_write_access(file); > + fput(file); > goto out_ret; > + } > memset(bprm, 0, sizeof(*bprm)); > > bprm->p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *); > ---------- End of patch ---------- > > Regards.
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