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* [Bug 107302] UBSAN: member access within null pointer of type 'struct radeon_fpriv'
@ 2018-07-20  7:35 bugzilla-daemon
  2019-11-19  9:33 ` bugzilla-daemon
  0 siblings, 1 reply; 2+ messages in thread
From: bugzilla-daemon @ 2018-07-20  7:35 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 7575 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=107302

            Bug ID: 107302
           Summary: UBSAN: member access within null pointer of type
                    'struct radeon_fpriv'
           Product: DRI
           Version: DRI git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: pmenzel+bugs.freedesktop@molgen.mpg.de

Enabling the undefined behavior sanitizer and building GNU/Linux 4.18-rc5+
(with some unrelated commits) with GCC 8.1.0 from Debian Sid/unstable, the
three warnings below are shown.

[   20.554998]
================================================================================
[   20.555019] UBSAN: Undefined behaviour in
drivers/gpu/drm/radeon/radeon_gem.c:148:20
[   20.555024] member access within null pointer of type 'struct radeon_fpriv'
[   20.555035] CPU: 1 PID: 284 Comm: Xorg Not tainted
4.18.0-rc5-00316-g4864b68cedf2 #104
[   20.555038] Hardware name: ASROCK E350M1/E350M1, BIOS TIMELESS 01/01/1970
[   20.555040] Call Trace:
[   20.555055]  dump_stack+0x55/0x89
[   20.555063]  ubsan_epilogue+0xb/0x33
[   20.555068]  handle_null_ptr_deref+0x7f/0x90
[   20.555075]  __ubsan_handle_type_mismatch_v1+0x55/0x60
[   20.555145]  radeon_gem_object_open+0x211/0x2f0 [radeon]
[   20.555172]  ? drm_vma_node_allow+0xcd/0x140 [drm]
[   20.555232]  ? radeon_gem_fini+0x10/0x10 [radeon]
[   20.555252]  drm_gem_handle_create_tail+0xff/0x230 [drm]
[   20.555274]  drm_gem_handle_create+0x3d/0x80 [drm]
[   20.555332]  radeon_gem_create_ioctl+0x99/0x120 [radeon]
[   20.555390]  ? radeon_gem_pwrite_ioctl+0x30/0x30 [radeon]
[   20.555410]  drm_ioctl_kernel+0xb8/0x150 [drm]
[   20.555431]  drm_ioctl+0x299/0x640 [drm]
[   20.555490]  ? radeon_gem_pwrite_ioctl+0x30/0x30 [radeon]
[   20.555498]  ? __pagevec_lru_add_fn+0x15d/0x5d0
[   20.555503]  ? __lru_cache_add+0x100/0x100
[   20.555510]  ? __pm_runtime_resume+0x7d/0xe0
[   20.555560]  radeon_drm_ioctl+0x73/0x160 [radeon]
[   20.555612]  ? radeon_pci_shutdown+0x60/0x60 [radeon]
[   20.555617]  do_vfs_ioctl+0xaf/0x9f0
[   20.555625]  ? __fget_light+0x99/0x110
[   20.555629]  ksys_ioctl+0x60/0x90
[   20.555633]  sys_ioctl+0x16/0x18
[   20.555639]  do_fast_syscall_32+0xce/0x3e0
[   20.555645]  entry_SYSENTER_32+0x4e/0x7c
[   20.555650] EIP: 0xb7fb4bb5
[   20.555651] Code: 89 e5 8b 55 08 85 d2 8b 80 5c cd ff ff 74 02 89 02 5d c3
8b 04 24 c3 8b 1c 24 c3 8b 3c 24 c3 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59
c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 
[   20.555722] EAX: ffffffda EBX: 0000000d ECX: c01c645d EDX: bfe8d850
[   20.555726] ESI: 00000004 EDI: c01c645d EBP: 0000000d ESP: bfe8d798
[   20.555729] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200292
[   20.555734]
================================================================================
[   20.559092]
================================================================================
[   20.559112] UBSAN: Undefined behaviour in
drivers/gpu/drm/radeon/radeon_cs.c:540:20
[   20.559117] member access within null pointer of type 'struct radeon_fpriv'
[   20.559127] CPU: 1 PID: 285 Comm: radeon_cs:0 Not tainted
4.18.0-rc5-00316-g4864b68cedf2 #104
[   20.559129] Hardware name: ASROCK E350M1/E350M1, BIOS TIMELESS 01/01/1970
[   20.559132] Call Trace:
[   20.559145]  dump_stack+0x55/0x89
[   20.559152]  ubsan_epilogue+0xb/0x33
[   20.559157]  handle_null_ptr_deref+0x7f/0x90
[   20.559163]  __ubsan_handle_type_mismatch_v1+0x55/0x60
[   20.559236]  radeon_cs_ioctl+0xb97/0xbe0 [radeon]
[   20.559244]  ? __cgroup_account_cputime+0x47/0x90
[   20.559311]  ? radeon_cs_parser_init+0x7f0/0x7f0 [radeon]
[   20.559334]  drm_ioctl_kernel+0xb8/0x150 [drm]
[   20.559355]  drm_ioctl+0x299/0x640 [drm]
[   20.559414]  ? radeon_cs_parser_init+0x7f0/0x7f0 [radeon]
[   20.559426]  ? __pm_runtime_resume+0x7d/0xe0
[   20.559475]  radeon_drm_ioctl+0x73/0x160 [radeon]
[   20.559526]  ? radeon_pci_shutdown+0x60/0x60 [radeon]
[   20.559531]  do_vfs_ioctl+0xaf/0x9f0
[   20.559538]  ? strlcpy+0x1d/0xc0
[   20.559544]  ? __fget_light+0x99/0x110
[   20.559547]  ksys_ioctl+0x60/0x90
[   20.559552]  sys_ioctl+0x16/0x18
[   20.559557]  do_fast_syscall_32+0xce/0x3e0
[   20.559563]  entry_SYSENTER_32+0x4e/0x7c
[   20.559568] EIP: 0xb7fb4bb5
[   20.559569] Code: 89 e5 8b 55 08 85 d2 8b 80 5c cd ff ff 74 02 89 02 5d c3
8b 04 24 c3 8b 1c 24 c3 8b 3c 24 c3 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59
c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 
[   20.559641] EAX: ffffffda EBX: 0000000d ECX: c0206466 EDX: b174a044
[   20.559644] ESI: b173a040 EDI: c0206466 EBP: 0000000d ESP: b1fd3008
[   20.559648] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00200292
[   20.559652]
================================================================================
[   21.842145]
================================================================================
[   21.842171] UBSAN: Undefined behaviour in
drivers/gpu/drm/radeon/radeon_gem.c:179:20
[   21.842179] member access within null pointer of type 'struct radeon_fpriv'
[   21.842196] CPU: 1 PID: 284 Comm: Xorg Not tainted
4.18.0-rc5-00316-g4864b68cedf2 #104
[   21.842200] Hardware name: ASROCK E350M1/E350M1, BIOS TIMELESS 01/01/1970
[   21.842204] Call Trace:
[   21.842231]  dump_stack+0x55/0x89
[   21.842242]  ubsan_epilogue+0xb/0x33
[   21.842250]  handle_null_ptr_deref+0x7f/0x90
[   21.842262]  __ubsan_handle_type_mismatch_v1+0x55/0x60
[   21.842367]  radeon_gem_object_close+0x232/0x310 [radeon]
[   21.842406]  drm_gem_object_release_handle+0x48/0x110 [drm]
[   21.842439]  drm_gem_handle_delete+0x5f/0xc0 [drm]
[   21.842472]  ? drm_gem_handle_create+0x80/0x80 [drm]
[   21.842503]  drm_gem_close_ioctl+0x36/0x90 [drm]
[   21.842536]  drm_ioctl_kernel+0xb8/0x150 [drm]
[   21.842570]  drm_ioctl+0x299/0x640 [drm]
[   21.842604]  ? drm_gem_handle_create+0x80/0x80 [drm]
[   21.842615]  ? __switch_to_asm+0x33/0x4c
[   21.842620]  ? __switch_to_asm+0x27/0x4c
[   21.842625]  ? __switch_to_asm+0x33/0x4c
[   21.842630]  ? __switch_to_asm+0x27/0x4c
[   21.842635]  ? __switch_to_asm+0x33/0x4c
[   21.842640]  ? __switch_to_asm+0x27/0x4c
[   21.842652]  ? __pm_runtime_resume+0x7d/0xe0
[   21.842733]  radeon_drm_ioctl+0x73/0x160 [radeon]
[   21.842815]  ? radeon_pci_shutdown+0x60/0x60 [radeon]
[   21.842823]  do_vfs_ioctl+0xaf/0x9f0
[   21.842831]  ? remove_vma+0x45/0x60
[   21.842836]  ? remove_vma+0x45/0x60
[   21.842844]  ? do_munmap+0x18b/0x4d0
[   21.842852]  ? __fget_light+0x99/0x110
[   21.842859]  ksys_ioctl+0x60/0x90
[   21.842866]  sys_ioctl+0x16/0x18
[   21.842874]  do_fast_syscall_32+0xce/0x3e0
[   21.842881]  entry_SYSENTER_32+0x4e/0x7c
[   21.842888] EIP: 0xb7fb4bb5
[   21.842891] Code: 89 e5 8b 55 08 85 d2 8b 80 5c cd ff ff 74 02 89 02 5d c3
8b 04 24 c3 8b 1c 24 c3 8b 3c 24 c3 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59
c3 90 90 90 90 8d 76 00 58 b8 77 00 00 00 cd 80 90 8d 76 
[   21.843006] EAX: ffffffda EBX: 0000000d ECX: 40086409 EDX: bfe8dfbc
[   21.843011] ESI: 01004300 EDI: 40086409 EBP: 0000000d ESP: bfe8df28
[   21.843017] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b EFLAGS: 00000292
[   21.843024]
================================================================================

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^ permalink raw reply	[flat|nested] 2+ messages in thread

* [Bug 107302] UBSAN: member access within null pointer of type 'struct radeon_fpriv'
  2018-07-20  7:35 [Bug 107302] UBSAN: member access within null pointer of type 'struct radeon_fpriv' bugzilla-daemon
@ 2019-11-19  9:33 ` bugzilla-daemon
  0 siblings, 0 replies; 2+ messages in thread
From: bugzilla-daemon @ 2019-11-19  9:33 UTC (permalink / raw)
  To: dri-devel


[-- Attachment #1.1: Type: text/plain, Size: 805 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=107302

Martin Peres <martin.peres@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #1 from Martin Peres <martin.peres@free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/drm/amd/issues/853.

-- 
You are receiving this mail because:
You are the assignee for the bug.

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_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply	[flat|nested] 2+ messages in thread

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