* Re: [RFC PATCH] drm/sched: Fix a UAF on drm_sched_fence::sched
[not found] <20240829171238.609481-1-boris.brezillon@collabora.com>
@ 2024-09-01 22:39 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2024-09-01 22:39 UTC (permalink / raw)
To: Boris Brezillon; +Cc: llvm, oe-kbuild-all
Hi Boris,
[This is a private test report for your RFC patch.]
kernel test robot noticed the following build errors:
[auto build test ERROR on drm/drm-next]
[also build test ERROR on drm-exynos/exynos-drm-next drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-misc/drm-misc-next drm-tip/drm-tip linus/master v6.11-rc6 next-20240830]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Boris-Brezillon/drm-sched-Fix-a-UAF-on-drm_sched_fence-sched/20240830-012038
base: git://anongit.freedesktop.org/drm/drm drm-next
patch link: https://lore.kernel.org/r/20240829171238.609481-1-boris.brezillon%40collabora.com
patch subject: [RFC PATCH] drm/sched: Fix a UAF on drm_sched_fence::sched
config: i386-buildonly-randconfig-003-20240902 (https://download.01.org/0day-ci/archive/20240902/202409020603.tc9e1ATi-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240902/202409020603.tc9e1ATi-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202409020603.tc9e1ATi-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from drivers/gpu/drm/lima/lima_dlbu.c:7:
In file included from drivers/gpu/drm/lima/lima_device.h:12:
In file included from drivers/gpu/drm/lima/lima_sched.h:7:
>> include/drm/gpu_scheduler.h:290:2: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
290 | kfree(tl->name);
| ^
1 error generated.
--
In file included from drivers/gpu/drm/lima/lima_trace.c:4:
In file included from drivers/gpu/drm/lima/lima_sched.h:7:
>> include/drm/gpu_scheduler.h:290:2: error: call to undeclared function 'kfree'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
290 | kfree(tl->name);
| ^
In file included from drivers/gpu/drm/lima/lima_trace.c:7:
In file included from drivers/gpu/drm/lima/lima_trace.h:50:
In file included from include/trace/define_trace.h:102:
In file included from include/trace/trace_events.h:21:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:5:
In file included from include/linux/mm.h:33:
include/linux/slab.h:278:6: error: conflicting types for 'kfree'
278 | void kfree(const void *objp);
| ^
include/drm/gpu_scheduler.h:290:2: note: previous implicit declaration is here
290 | kfree(tl->name);
| ^
In file included from drivers/gpu/drm/lima/lima_trace.c:7:
In file included from drivers/gpu/drm/lima/lima_trace.h:50:
In file included from include/trace/define_trace.h:102:
In file included from include/trace/trace_events.h:21:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:5:
In file included from include/linux/mm.h:1127:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:11: warning: array index 3 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds]
98 | return (set->sig[3] | set->sig[2] |
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from drivers/gpu/drm/lima/lima_trace.c:7:
In file included from drivers/gpu/drm/lima/lima_trace.h:50:
In file included from include/trace/define_trace.h:102:
In file included from include/trace/trace_events.h:21:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:5:
In file included from include/linux/mm.h:1127:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:98:25: warning: array index 2 is past the end of the array (that has type 'unsigned long[2]') [-Warray-bounds]
98 | return (set->sig[3] | set->sig[2] |
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from drivers/gpu/drm/lima/lima_trace.c:7:
In file included from drivers/gpu/drm/lima/lima_trace.h:50:
In file included from include/trace/define_trace.h:102:
In file included from include/trace/trace_events.h:21:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:5:
In file included from include/linux/mm.h:1127:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:11: warning: array index 3 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds]
114 | return (set1->sig[3] == set2->sig[3]) &&
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from drivers/gpu/drm/lima/lima_trace.c:7:
In file included from drivers/gpu/drm/lima/lima_trace.h:50:
In file included from include/trace/define_trace.h:102:
In file included from include/trace/trace_events.h:21:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:5:
In file included from include/linux/mm.h:1127:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:114:27: warning: array index 3 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds]
114 | return (set1->sig[3] == set2->sig[3]) &&
| ^ ~
arch/x86/include/asm/signal.h:24:2: note: array 'sig' declared here
24 | unsigned long sig[_NSIG_WORDS];
| ^
In file included from drivers/gpu/drm/lima/lima_trace.c:7:
In file included from drivers/gpu/drm/lima/lima_trace.h:50:
In file included from include/trace/define_trace.h:102:
In file included from include/trace/trace_events.h:21:
In file included from include/linux/trace_events.h:6:
In file included from include/linux/ring_buffer.h:5:
In file included from include/linux/mm.h:1127:
In file included from include/linux/huge_mm.h:8:
In file included from include/linux/fs.h:33:
In file included from include/linux/percpu-rwsem.h:7:
In file included from include/linux/rcuwait.h:6:
In file included from include/linux/sched/signal.h:6:
include/linux/signal.h:115:5: warning: array index 2 is past the end of the array (that has type 'const unsigned long[2]') [-Warray-bounds]
vim +/kfree +290 include/drm/gpu_scheduler.h
283
284 static inline void
285 drm_sched_fence_timeline_release(struct kref *kref)
286 {
287 struct drm_sched_fence_timeline *tl =
288 container_of(kref, struct drm_sched_fence_timeline, kref);
289
> 290 kfree(tl->name);
291 kfree(tl);
292 }
293
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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[not found] <20240829171238.609481-1-boris.brezillon@collabora.com>
2024-09-01 22:39 ` [RFC PATCH] drm/sched: Fix a UAF on drm_sched_fence::sched kernel test robot
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