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| author | Jiri Olsa <[email protected]> | 2017-04-11 07:14:46 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2017-04-11 07:48:12 +0000 |
| commit | 7f00f388712b29005782bad7e4b25942620f3b9c (patch) | |
| tree | f8b1b2f7a6ec3238171276b7c3ecac242fccc36d /drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | |
| parent | x86/debug: Fix the printk() debug output of signal_fault(), do_trap() and do_... (diff) | |
| download | kernel-7f00f388712b29005782bad7e4b25942620f3b9c.tar.gz kernel-7f00f388712b29005782bad7e4b25942620f3b9c.zip | |
x86/intel_rdt: Fix locking in rdtgroup_schemata_write()
The schemata lock is released before freeing the resource's temporary
tmp_cbms allocation. That's racy versus another write which allocates and
uses new temporary storage, resulting in memory leaks, freeing in use
memory, double a free or any combination of those.
Move the unlock after the release code.
Fixes: 60ec2440c63d ("x86/intel_rdt: Add schemata file")
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Fenghua Yu <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Mike Galbraith <[email protected]>
Cc: Shaohua Li <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
0 files changed, 0 insertions, 0 deletions