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ftrace_ops_assist_func clear_all_latency_tracing crash

frdeso
Jul 13th, 2017
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  1. [C[ 231.797754] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
  2. [ 231.798599] BUG: unable to handle kernel paging request at ffffc90000ba7e98
  3. [ 231.799383] IP: 0xffffc90000ba7e98
  4. [ 231.799760] PGD 13b105067
  5. [ 231.799761] P4D 13b105067
  6. [ 231.800063] PUD 13b106067
  7. [ 231.800365] PMD 1332ed067
  8. [ 231.800667] PTE 80000001332ef163
  9. [ 231.800971]
  10. [ 231.801500] Oops: 0011 [#1] SMP
  11. [ 231.801848] Modules linked in:
  12. [ 231.802205] CPU: 0 PID: 2496 Comm: zsh Not tainted 4.12.0 #104
  13. [ 231.802845] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
  14. [ 231.803886] task: ffff880133281c00 task.stack: ffffc90000ba4000
  15. [ 231.804536] RIP: 0010:0xffffc90000ba7e98
  16. [ 231.804972] RSP: 0018:ffffc90000ba7da0 EFLAGS: 00010246
  17. [ 231.805548] RAX: 0000000000000000 RBX: ffffc90000ba7db8 RCX: 0000000000000007
  18. [ 231.806317] RDX: 0000000000000001 RSI: 0000000001200011 RDI: ffff88013a6dd400
  19. [ 231.807149] RBP: ffffc90000ba7d98 R08: 0000000000000000 R09: 0000000000000043
  20. [ 231.808001] R10: ffffffff8113c8a5 R11: 0000000001200011 R12: 0000000000000010
  21. [ 231.808816] R13: 0000000000000246 R14: ffffc90000ba7dc0 R15: 0000000000000018
  22. [ 231.809616] FS: 00007fc5e1a8d700(0000) GS:ffff88013fc00000(0000) knlGS:0000000000000000
  23. [ 231.810508] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  24. [ 231.811043] CR2: ffffc90000ba7e98 CR3: 000000013336a000 CR4: 00000000000006f0
  25. [ 231.811557] Call Trace:
  26. [ 231.811741] WARNING: kernel stack frame pointer at ffffc90000ba7d98 in zsh:2496 has bad value 0000000000000018
  27. [ 231.811742] unwind stack type:0 next_sp: (null) mask:0x2 graph_idx:0
  28. [ 231.811745] ffffc90000ba7d98: 0000000000000018 (0x18)
  29. [ 231.811750] ffffc90000ba7da0: ffffffff81085f5b (copy_process.part.35+0xabb/0x1a30)
  30. [ 231.811750] ffffc90000ba7da8: ffffc90000ba7e98 (0xffffc90000ba7e98)
  31. [ 231.811751] ffffc90000ba7db0: 0000000000000246 (0x246)
  32. [ 231.811753] ffffc90000ba7db8: ffffffff8113c8a5 (clear_all_latency_tracing+0x5/0x80)
  33. [ 231.811755] ffffc90000ba7dc0: ffffffff81045550 (copy_oldmem_page+0xa0/0xa0)
  34. [ 231.811756] ffffc90000ba7dc8: ffff88013a1fc260 (0xffff88013a1fc260)
  35. [ 231.811756] ffffc90000ba7dd0: 0000000000000000 ...
  36. [ 231.811757] ffffc90000ba7dd8: 0000000001200011 (0x1200011)
  37. [ 231.811757] ffffc90000ba7de0: ffff88013a6dd888 (0xffff88013a6dd888)
  38. [ 231.811758] ffffc90000ba7de8: ffff880139e35248 (0xffff880139e35248)
  39. [ 231.811758] ffffc90000ba7df0: ffff880139e35250 (0xffff880139e35250)
  40. [ 231.811759] ffffc90000ba7df8: ffff880139e35238 (0xffff880139e35238)
  41. [ 231.811759] ffffc90000ba7e00: ffff880137df7078 (0xffff880137df7078)
  42. [ 231.811760] ffffc90000ba7e08: ffff880137df6878 (0xffff880137df6878)
  43. [ 231.811760] ffffc90000ba7e10: ffff880139e35228 (0xffff880139e35228)
  44. [ 231.811760] ffffc90000ba7e18: 0000000000000000 ...
  45. [ 231.811761] ffffc90000ba7e20: ffff880137df7000 (0xffff880137df7000)
  46. [ 231.811761] ffffc90000ba7e28: 0000000000000000 ...
  47. [ 231.811762] ffffc90000ba7e38: 00000000398c1240 (0x398c1240)
  48. [ 231.811762] ffffc90000ba7e40: 0000000000000000 ...
  49. [ 231.811762] ffffc90000ba7e58: ffffc90000ba7e58 (0xffffc90000ba7e58)
  50. [ 231.811763] ffffc90000ba7e60: ffffc90000ba7e58 (0xffffc90000ba7e58)
  51. [ 231.811763] ffffc90000ba7e68: ffffc90000ba7f58 (0xffffc90000ba7f58)
  52. [ 231.811764] ffffc90000ba7e70: ffff880133281c00 (0xffff880133281c00)
  53. [ 231.811764] ffffc90000ba7e78: 0000000000000038 (0x38)
  54. [ 231.811765] ffffc90000ba7e80: 0000000000000000 ...
  55. [ 231.811765] ffffc90000ba7e88: ffffffffffffffea (0xffffffffffffffea)
  56. [ 231.811766] ffffc90000ba7e90: 00000000025b6960 (0x25b6960)
  57. [ 231.811766] ffffc90000ba7e98: ffffc90000ba7f10 (0xffffc90000ba7f10)
  58. [ 231.811767] ffffc90000ba7ea0: ffffffff81087092 (_do_fork+0xc2/0x380)
  59. [ 231.811768] ffffc90000ba7ea8: 0000000000000000 ...
  60. [ 231.811768] ffffc90000ba7eb0: ffffffffffffffff (0xffffffffffffffff)
  61. [ 231.811769] ffffc90000ba7eb8: 0000000000000000 ...
  62. [ 231.811769] ffffc90000ba7ec0: 0000000001200011 (0x1200011)
  63. [ 231.811769] ffffc90000ba7ec8: 0000000000000003 (0x3)
  64. [ 231.811770] ffffc90000ba7ed0: ffffc90000ba7ee0 (0xffffc90000ba7ee0)
  65. [ 231.811774] ffffc90000ba7ed8: ffffffff81233240 (get_unused_fd_flags+0x30/0x40)
  66. [ 231.811774] ffffc90000ba7ee0: ffffc90000ba7f18 (0xffffc90000ba7f18)
  67. [ 231.811775] ffffc90000ba7ee8: ffffc90000ba7f58 (0xffffc90000ba7f58)
  68. [ 231.811775] ffffc90000ba7ef0: 0000000000000038 (0x38)
  69. [ 231.811776] ffffc90000ba7ef8: ffff880133281c00 (0xffff880133281c00)
  70. [ 231.811796] ffffc90000ba7f00: 0000000000000000 ...
  71. [ 231.811796] ffffc90000ba7f08: 00000000025b6960 (0x25b6960)
  72. [ 231.811797] ffffc90000ba7f10: ffffc90000ba7f20 (0xffffc90000ba7f20)
  73. [ 231.811798] ffffc90000ba7f18: ffffffff810873f9 (SyS_clone+0x19/0x20)
  74. [ 231.811799] ffffc90000ba7f20: ffffc90000ba7f48 (0xffffc90000ba7f48)
  75. [ 231.811800] ffffc90000ba7f28: ffffffff81002afe (do_syscall_64+0x6e/0x150)
  76. [ 231.811801] ffffc90000ba7f30: 00007ffea0097540 (0x7ffea0097540)
  77. [ 231.811801] ffffc90000ba7f38: 0000000000000000 ...
  78. [ 231.811801] ffffc90000ba7f48: 00007ffea0097580 (0x7ffea0097580)
  79. [ 231.811803] ffffc90000ba7f50: ffffffff8168ac2b (entry_SYSCALL64_slow_path+0x25/0x25)
  80. [ 231.811804] ffffc90000ba7f58: 00000000025b6960 (0x25b6960)
  81. [ 231.811804] ffffc90000ba7f60: 0000000000000000 ...
  82. [ 231.811805] ffffc90000ba7f78: 00007ffea0097580 (0x7ffea0097580)
  83. [ 231.811805] ffffc90000ba7f80: 00007ffea0097540 (0x7ffea0097540)
  84. [ 231.811806] ffffc90000ba7f88: 0000000000000246 (0x246)
  85. [ 231.811806] ffffc90000ba7f90: 00007fc5e1a8d9d0 (0x7fc5e1a8d9d0)
  86. [ 231.811806] ffffc90000ba7f98: 00000000000009c0 (0x9c0)
  87. [ 231.811807] ffffc90000ba7fa0: 0000000000000000 ...
  88. [ 231.811807] ffffc90000ba7fa8: ffffffffffffffda (0xffffffffffffffda)
  89. [ 231.811808] ffffc90000ba7fb0: 00007fc5e0ce8f46 (0x7fc5e0ce8f46)
  90. [ 231.811808] ffffc90000ba7fb8: 0000000000000000 ...
  91. [ 231.811808] ffffc90000ba7fc8: 0000000001200011 (0x1200011)
  92. [ 231.811809] ffffc90000ba7fd0: 0000000000000038 (0x38)
  93. [ 231.811809] ffffc90000ba7fd8: 00007fc5e0ce8f46 (0x7fc5e0ce8f46)
  94. [ 231.811810] ffffc90000ba7fe0: 0000000000000033 (0x33)
  95. [ 231.811810] ffffc90000ba7fe8: 0000000000000246 (0x246)
  96. [ 231.811811] ffffc90000ba7ff0: 00007ffea0097540 (0x7ffea0097540)
  97. [ 231.811811] ffffc90000ba7ff8: 000000000000002b (0x2b)
  98. [ 231.811813] ? copy_process.part.35+0xabb/0x1a30
  99. [ 231.847025] ? clear_all_latency_tracing+0x5/0x80
  100. [ 231.847376] ? copy_oldmem_page+0xa0/0xa0
  101. [ 231.847698] ? _do_fork+0xc2/0x380
  102. [ 231.848129] ? get_unused_fd_flags+0x30/0x40
  103. [ 231.848443] ? SyS_clone+0x19/0x20
  104. [ 231.848691] ? do_syscall_64+0x6e/0x150
  105. [ 231.848968] ? entry_SYSCALL64_slow_path+0x25/0x25
  106. [ 231.849312] Code: c9 ff ff 00 1c 28 33 01 88 ff ff 38 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ea ff ff ff ff ff ff ff 60 69 5b 02 00 00 00 00 <10> 7f ba 00 00 c9 ff ff 92 70 08 81 ff ff ff ff 00 00 00 00 00
  107. [ 231.850657] RIP: 0xffffc90000ba7e98 RSP: ffffc90000ba7da0
  108. [ 231.851055] CR2: ffffc90000ba7e98
  109. [ 231.851305] ---[ end trace 869c2c64d5bb2e8a ]---
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