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  1. [ 791.961429] FAULT_INJECTION: forcing a failure.
  2. [ 791.961429] name failslab, interval 1, probability 0, space 0, times 0
  3. [ 791.964432] CPU: 2 PID: 30553 Comm: syz-executor1 Not tainted 4.17.0+ #17
  4. [ 791.966261] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
  5. [ 791.968457] Call Trace:
  6. [ 791.969131] dump_stack+0x1b9/0x294
  7. [ 791.970094] ? dump_stack_print_info.cold.2+0x52/0x52
  8. [ 791.971440] ? perf_trace_lock_acquire+0xe3/0x980
  9. [ 791.972699] ? __save_stack_trace+0x7e/0xd0
  10. [ 791.973863] should_fail.cold.4+0xa/0x1a
  11. [ 791.974894] ? fault_create_debugfs_attr+0x1f0/0x1f0
  12. [ 791.976196] ? save_stack+0x43/0xd0
  13. [ 791.976806] BUG: unable to handle kernel
  14. [ 791.977113] ? kasan_kmalloc+0xc4/0xe0
  15. [ 791.977124] NULL pointer dereference
  16. [ 791.978184] ? kmem_cache_alloc_trace+0x152/0x780
  17. [ 791.979081] at 0000000000000000
  18. [ 791.979094] PGD 58f49067
  19. [ 791.980049] ? __memcg_init_list_lru_node+0x17d/0x2c0
  20. [ 791.981139] P4D 58f49067
  21. [ 791.981968] ? __list_lru_init+0x456/0x790
  22. [ 791.982615] PUD 16ef1067
  23. [ 791.983966] ? sget_userns+0x73a/0xf00
  24. [ 791.984625] PMD 0
  25. [ 791.985741] ? mount_nodev+0x33/0x110
  26. [ 791.987454] ? fuse_mount+0x2c/0x40
  27. [ 791.987473] ? mount_fs+0xae/0x328
  28. [ 791.987994] Oops: 0010 [#1] SMP KASAN
  29. [ 791.988974] ? vfs_kern_mount.part.34+0xd4/0x4d0
  30. [ 791.989845] CPU: 1 PID: 30560 Comm: syz-executor0 Not tainted 4.17.0+ #17
  31. [ 791.990756] ? do_mount+0x564/0x30b0
  32. [ 791.991659] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
  33. [ 791.991674] RIP: 0010: (null)
  34. [ 791.992905] ? ksys_mount+0x12d/0x140
  35. [ 791.994522] Code: Bad RIP value.
  36. [ 791.995529] ? __x64_sys_mount+0xbe/0x150
  37. [ 791.997488] RSP: 0018:ffff88002d5ff590 EFLAGS: 00010246
  38. [ 791.998502] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe
  39. [ 791.999206] RAX: 0000000000000000 RBX: ffff88001485d800 RCX: 1ffffffff10ea839
  40. [ 791.999218] RDX: ffff88002d5ffab0 RSI: ffff8800185e1640 RDI: ffff8800568ba5c0
  41. [ 792.000111] ? graph_lock+0x170/0x170
  42. [ 792.000918] RBP: ffff88002d5ff700 R08: 0000000000000001 R09: 0000000000000000
  43. [ 792.000929] R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff10005abfeb7
  44. [ 792.002306] ? lock_downgrade+0x8e0/0x8e0
  45. [ 792.003345] R13: ffff88002d5ffab0 R14: ffff88001485d812 R15: ffff88001485dc58
  46. [ 792.003358] FS: 00007f5793397700(0000) GS:ffff88006c640000(0000) knlGS:0000000000000000
  47. [ 792.005200] ? __lock_is_held+0xb5/0x140
  48. [ 792.006592] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  49. [ 792.006604] CR2: ffffffffffffffd6 CR3: 0000000067745002 CR4: 00000000001626e0
  50. [ 792.007606] ? rcu_note_context_switch+0x710/0x710
  51. [ 792.008993] Call Trace:
  52. [ 792.010813] __should_failslab+0x124/0x180
  53. [ 792.011635] ? smc_poll+0x211/0xdd0
  54. [ 792.011650] ? __smc_connect+0xa90/0xa90
  55. [ 792.013497] should_failslab+0x9/0x14
  56. [ 792.015063] ? kvm_clock_read+0x25/0x30
  57. [ 792.016123] kmem_cache_alloc_trace+0x2cb/0x780
  58. [ 792.017254] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
  59. [ 792.019047] ? __kmalloc_node+0x33/0x70
  60. [ 792.019998] ? ktime_get_ts64+0x39d/0x510
  61. [ 792.020012] ? do_gettimeofday+0x170/0x170
  62. [ 792.020660] ? __kmalloc_node+0x33/0x70
  63. [ 792.021498] ? __fget_light+0x2ef/0x430
  64. [ 792.022408] ? rcu_read_lock_sched_held+0x108/0x120
  65. [ 792.023194] sock_poll+0x1d1/0x710
  66. [ 792.024145] __memcg_init_list_lru_node+0x17d/0x2c0
  67. [ 792.024886] ? __smc_connect+0xa90/0xa90
  68. [ 792.026078] ? kvfree_rcu+0x20/0x20
  69. [ 792.027158] ? sock_get_poll_head+0x460/0x460
  70. [ 792.028179] ? __kmalloc_node+0x47/0x70
  71. [ 792.028998] ? sock_get_poll_head+0x460/0x460
  72. [ 792.030099] __list_lru_init+0x456/0x790
  73. [ 792.030894] vfs_poll+0x77/0x2a0
  74. [ 792.031928] ? list_lru_destroy+0x4c0/0x4c0
  75. [ 792.032869] do_sys_poll+0x6fd/0x1100
  76. [ 792.033778] ? mark_held_locks+0xc9/0x160
  77. [ 792.034816] ? compat_core_sys_select+0xae0/0xae0
  78. [ 792.035841] ? __raw_spin_lock_init+0x1c/0x100
  79. [ 792.036558] ? retint_kernel+0x10/0x10
  80. [ 792.037684] ? trace_hardirqs_on_caller+0x421/0x5c0
  81. [ 792.038424] ? perf_trace_lock+0x900/0x900
  82. [ 792.039573] ? __lockdep_init_map+0x105/0x590
  83. [ 792.040504] ? finish_task_switch+0x1d0/0x840
  84. [ 792.041374] ? lockdep_init_map+0x9/0x10
  85. [ 792.042314] ? graph_lock+0x170/0x170
  86. [ 792.043325] sget_userns+0x73a/0xf00
  87. [ 792.044158] ? lock_repin_lock+0x410/0x410
  88. [ 792.045492] ? get_anon_bdev+0x2f0/0x2f0
  89. [ 792.046404] ? find_held_lock+0x36/0x1c0
  90. [ 792.047408] ? destroy_unused_super.part.11+0x110/0x110
  91. [ 792.048474] ? poll_initwait+0x180/0x180
  92. [ 792.049540] ? __alloc_pages_nodemask+0xacf/0xd70
  93. [ 792.050484] ? pvclock_read_flags+0x160/0x160
  94. [ 792.051557] ? __alloc_pages_slowpath+0x2da0/0x2da0
  95. [ 792.052381] ? ktime_get_ts64+0x405/0x510
  96. [ 792.053352] ? kasan_check_read+0x11/0x20
  97. [ 792.054114] ? __sanitizer_cov_trace_cmp8+0x18/0x20
  98. [ 792.055121] ? cap_capable+0x1f9/0x260
  99. [ 792.056067] ? timespec64_add_safe+0x1f4/0x2d0
  100. [ 792.056080] ? nsec_to_clock_t+0x30/0x30
  101. [ 792.057047] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
  102. [ 792.058185] ? do_gettimeofday+0x170/0x170
  103. [ 792.059159] ? security_capable+0x99/0xc0
  104. [ 792.060186] ? schedule+0xef/0x430
  105. [ 792.061442] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
  106. [ 792.062418] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
  107. [ 792.062431] ? sock_alloc_file+0x2a4/0x4e0
  108. [ 792.063513] ? ns_capable_common+0x13f/0x170
  109. [ 792.064365] ? sock_release+0x1b0/0x1b0
  110. [ 792.065566] ? get_anon_bdev+0x2f0/0x2f0
  111. [ 792.066333] ? get_unused_fd_flags+0x121/0x190
  112. [ 792.067604] sget+0x10b/0x150
  113. [ 792.068400] ? poll_select_set_timeout+0x14f/0x220
  114. [ 792.069914] ? fuse_get_root_inode+0x190/0x190
  115. [ 792.070785] ? do_restart_poll+0x2d0/0x2d0
  116. [ 792.071792] mount_nodev+0x33/0x110
  117. [ 792.072455] ? exit_to_usermode_loop+0x87/0x310
  118. [ 792.074000] fuse_mount+0x2c/0x40
  119. [ 792.075067] __x64_sys_poll+0x189/0x510
  120. [ 792.076246] mount_fs+0xae/0x328
  121. [ 792.077129] ? __ia32_sys_pselect6+0x270/0x270
  122. [ 792.078262] vfs_kern_mount.part.34+0xd4/0x4d0
  123. [ 792.079066] ? do_syscall_64+0x92/0x800
  124. [ 792.080354] ? may_umount+0xb0/0xb0
  125. [ 792.081054] do_syscall_64+0x1b1/0x800
  126. [ 792.082281] ? _raw_read_unlock+0x22/0x30
  127. [ 792.083180] ? syscall_return_slowpath+0x5c0/0x5c0
  128. [ 792.084187] ? __get_fs_type+0x97/0xc0
  129. [ 792.085161] ? printk_nmi_enter+0x89/0x160
  130. [ 792.086437] do_mount+0x564/0x30b0
  131. [ 792.087121] ? printk_safe_flush_on_panic+0x1a0/0x1a0
  132. [ 792.088089] ? copy_mount_string+0x40/0x40
  133. [ 792.088992] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
  134. [ 792.090192] ? trace_hardirqs_on_thunk+0x1a/0x1c
  135. [ 792.091104] ? trace_hardirqs_off_thunk+0x1a/0x1c
  136. [ 792.092232] ? retint_kernel+0x10/0x10
  137. [ 792.093193] entry_SYSCALL_64_after_hwframe+0x49/0xbe
  138. [ 792.094275] ? copy_mount_options+0x1f0/0x380
  139. [ 792.095069] RIP: 0033:0x455449
  140. [ 792.096366] ? __sanitizer_cov_trace_pc+0x48/0x50
  141. [ 792.097372] Code:
  142. [ 792.098394] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
  143. [ 792.099262] 6d
  144. [ 792.100518] ? copy_mount_options+0x285/0x380
  145. [ 792.101521] b6 fb
  146. [ 792.102830] ksys_mount+0x12d/0x140
  147. [ 792.103955] ff c3
  148. [ 792.105148] __x64_sys_mount+0xbe/0x150
  149. [ 792.106141] 66
  150. [ 792.107410] ? trace_hardirqs_on_caller+0x421/0x5c0
  151. [ 792.107431] do_syscall_64+0x1b1/0x800
  152. [ 792.108519] 2e 0f
  153. [ 792.109311] ? syscall_return_slowpath+0x5c0/0x5c0
  154. [ 792.110498] 1f 84
  155. [ 792.111039] ? printk_nmi_enter+0x89/0x160
  156. [ 792.112235] 00 00
  157. [ 792.112715] ? printk_safe_flush_on_panic+0x1a0/0x1a0
  158. [ 792.113593] 00 00
  159. [ 792.114128] ? entry_SYSCALL_64_after_hwframe+0x59/0xbe
  160. [ 792.114912] 00 66
  161. [ 792.115478] ? trace_hardirqs_off_thunk+0x1a/0x1c
  162. [ 792.116328] 90 48
  163. [ 792.116789] entry_SYSCALL_64_after_hwframe+0x49/0xbe
  164. [ 792.117849] 89 f8
  165. [ 792.118817] RIP: 0033:0x455449
  166. [ 792.119229] 48 89
  167. [ 792.120483] Code:
  168. [ 792.120911] f7 48
  169. [ 792.121995] 6d
  170. [ 792.122401] 89 d6
  171. [ 792.123780] b6 fb
  172. [ 792.124356] 48 89
  173. [ 792.125702] ff c3
  174. [ 792.126273] ca 4d
  175. [ 792.127439] 66 2e
  176. [ 792.128018] 89 c2
  177. [ 792.129330] 0f 1f
  178. [ 792.129904] 4d 89
  179. [ 792.130843] 84 00
  180. [ 792.131438] c8 4c
  181. [ 792.131993] 00 00
  182. [ 792.132574] 8b 4c
  183. [ 792.133065] 00
  184. [ 792.133623] 24 08
  185. [ 792.134200] 00 66
  186. [ 792.134772] 0f 05
  187. [ 792.135372] 90 48
  188. [ 792.135923] <48> 3d
  189. [ 792.136495] 89 f8
  190. [ 792.137065] 01 f0
  191. [ 792.137615] 48 89
  192. [ 792.138188] ff ff
  193. [ 792.138876] f7 48
  194. [ 792.139458] 0f 83
  195. [ 792.140019] 89 d6
  196. [ 792.140577] 3b b6
  197. [ 792.141044] 48 89
  198. [ 792.141635] fb ff
  199. [ 792.142220] ca 4d
  200. [ 792.142793] c3 66
  201. [ 792.143368] 89 c2
  202. [ 792.143992] 2e 0f
  203. [ 792.144566] 4d 89
  204. [ 792.145141] 1f
  205. [ 792.145688] c8 4c
  206. [ 792.146257] 84
  207. [ 792.146804] 8b 4c
  208. [ 792.147384] 00 00
  209. [ 792.147937] 24 08
  210. [ 792.148523] 00 00
  211. [ 792.149110] 0f 05
  212. [ 792.149688] RSP: 002b:00007f5793396c78 EFLAGS: 00000246
  213. [ 792.150243] <48> 3d
  214. [ 792.150808] ORIG_RAX: 0000000000000007
  215. [ 792.150822] RAX: ffffffffffffffda RBX: 000000000070bea0 RCX: 0000000000455449
  216. [ 792.151417] 01 f0
  217. [ 792.151902] RDX: 000000000000498a RSI: 0000000000000006 RDI: 00000000200000c0
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