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| author | Dhaval Giani <dhaval@linux.vnet.ibm.com> | 2009-02-27 10:43:54 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-02-27 11:11:53 +0100 |
| commit | 54e991242850edc8c53f71fa5aa3ba7a93ce38f5 (patch) | |
| tree | 7f136214aab690a8ee4a294ca9c1a7e01de0dc49 /security | |
| parent | sched_rt: don't start timer when rt bandwidth disabled (diff) | |
| download | linux-54e991242850edc8c53f71fa5aa3ba7a93ce38f5.tar.xz linux-54e991242850edc8c53f71fa5aa3ba7a93ce38f5.zip | |
sched: don't allow setuid to succeed if the user does not have rt bandwidth
Impact: fix hung task with certain (non-default) rt-limit settings
Corey Hickey reported that on using setuid to change the uid of a
rt process, the process would be unkillable and not be running.
This is because there was no rt runtime for that user group. Add
in a check to see if a user can attach an rt task to its task group.
On failure, return EINVAL, which is also returned in
CONFIG_CGROUP_SCHED.
Reported-by: Corey Hickey <bugfood-ml@fatooh.org>
Signed-off-by: Dhaval Giani <dhaval@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions