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kosmik2001

zfs+qemu: kernel NULL pointer dereference

kosmik2001
Sep 7th, 2020
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  1. 10168.067263] ------------[ cut here ]------------
  2. [10168.067269] list_add corruption. next->prev should be prev (ffff88883f33aee8), but was 0000000000000000. (next=ffff88886dbc83e0).
  3. [10168.067296] WARNING: CPU: 8 PID: 4330 at lib/list_debug.c:23 __list_add_valid+0x33/0x70
  4. [10168.067297] Modules linked in: zfs(PO) zunicode(PO) zzstd(PO) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) act_police cls_flow lz4 lz4_compress lz4_decompress sch_sfq tun xt_multiport bnep bluetooth ecdh_generic ecc rfkill fuse bridge stp llc xt_helper xt_limit xt_state xt_conntrack xt_addrtype xt_pkttype iptable_raw xt_MASQUERADE xt_REDIRECT iptable_nat xt_TCPMSS iptable_mangle binfmt_misc xfs msdos fat zram sch_codel sch_fq act_mirred cls_u32 sch_tbf sch_ingress sch_htb l2tp_ip l2tp_eth l2tp_netlink l2tp_core ip6_udp_tunnel udp_tunnel ipv6 nf_conntrack_ftp xt_tcpmss xt_nat nf_nat nf_conntrack nf_defrag_ipv4 nf_defrag_ipv6 ifb adt7475 hwmon_vid nvidia(PO) zlua(PO) ipmi_ssif edac_core x86_pkg_temp_thermal coretemp kvm_intel kvm snd_cmipci irqbypass crct10dif_pclmul crc32_pclmul snd_mpu401_uart crc32c_intel snd_opl3_lib snd_hwdep snd_rawmidi snd_seq_device snd_pcm ghash_clmulni_intel efi_pstore snd_timer snd efivars soundcore i2c_i801 mei_me igb mei lpc_ich mfd_core ipmi_si ipmi_devintf
  5. [10168.067353]  ipmi_msghandler [last unloaded: spl]
  6. [10168.067358] CPU: 8 PID: 4330 Comm: CPU 8/KVM Tainted: P           O      5.4.60-gentoo #1
  7. [10168.067359] Hardware name: Supermicro X9DRH-7TF/7F/iTF/iF/X9DRH-7TF/7F/iTF/iF, BIOS 3.3 07/13/2018
  8. [10168.067363] RIP: 0010:__list_add_valid+0x33/0x70
  9. [10168.067366] Code: f2 75 18 4c 8b 0a 4d 39 c1 75 24 48 39 fa 74 39 49 39 f9 74 34 b8 01 00 00 00 c3 4c 89 c1 48 c7 c7 68 5f 11 82 e8 7b ed c5 ff <0f> 0b 31 c0 c3 48 89 d1 4c 89 c6 4c 89 ca 48 c7 c7 b8 5f 11 82 e8
  10. [10168.067367] RSP: 0018:ffffc90004797cd0 EFLAGS: 00010086
  11. [10168.067369] RAX: 0000000000000000 RBX: ffff88886b47cf00 RCX: 0000000000000000
  12. [10168.067370] RDX: 0000000000000004 RSI: 0000000000000082 RDI: 00000000ffffffff
  13. [10168.067371] RBP: 0000000000000000 R08: 0000000000001051 R09: 0000000000000001
  14. [10168.067372] R10: 0000000000000000 R11: 0000000000000001 R12: ffff88883f33ac00
  15. [10168.067373] R13: 0000000000000046 R14: ffff88886b47cfe0 R15: ffff88886dbc83e0
  16. [10168.067375] FS:  00007f09b25fc700(0000) GS:ffff88886fa00000(0000) knlGS:0000000000000000
  17. [10168.067376] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  18. [10168.067378] CR2: 00007f0bcac46080 CR3: 0000000847be2004 CR4: 00000000001626e0
  19. [10168.067379] Call Trace:
  20. [10168.067390]  io_poll_remove_one+0xc9/0x170
  21. [10168.067396]  __io_submit_sqe+0x4c3/0x920
  22. [10168.067404]  ? alloc_set_pte+0x105/0x380
  23. [10168.067406]  ? io_complete_rw_iopoll+0x80/0x80
  24. [10168.067410]  __io_queue_sqe+0x26/0x2b0
  25. [10168.067414]  io_ring_submit+0xac/0x1d0
  26. [10168.067419]  __x64_sys_io_uring_enter+0x206/0x2f0
  27. [10168.067425]  do_syscall_64+0x59/0x1f0
  28. [10168.067432]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  29. [10168.067436] RIP: 0033:0x7f0bca3b1e59
  30. [10168.067438] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 07 00 0c 00 f7 d8 64 89 01 48
  31. [10168.067440] RSP: 002b:00007f09b25fb398 EFLAGS: 00000212 ORIG_RAX: 00000000000001aa
  32. [10168.067441] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0bca3b1e59
  33. [10168.067442] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000007
  34. [10168.067443] RBP: 00007f09b25fb488 R08: 0000000000000000 R09: 0000000000000008
  35. [10168.067444] R10: 0000000000000000 R11: 0000000000000212 R12: 0000562dd45ca138
  36. [10168.067445] R13: 0000562dd45ca040 R14: 0000000000000000 R15: 0000000000000000
  37. [10168.067448] ---[ end trace 8944d9b8d298f659 ]---
  38. [10168.387201] xenbr0: port 2(vnet0) entered disabled state
  39. [10168.387795] device vnet0 left promiscuous mode
  40. [10168.387801] xenbr0: port 2(vnet0) entered disabled state
  41. [10169.188516] BUG: kernel NULL pointer dereference, address: 0000000000000000
  42. [10169.188523] #PF: supervisor read access in kernel mode
  43. [10169.188525] #PF: error_code(0x0000) - not-present page
  44. [10169.188526] PGD 0 P4D 0
  45. [10169.188530] Oops: 0000 [#1] PREEMPT SMP NOPTI
  46. [10169.188534] CPU: 11 PID: 9792 Comm: worker Tainted: P        W  O      5.4.60-gentoo #1
  47. [10169.188535] Hardware name: Supermicro X9DRH-7TF/7F/iTF/iF/X9DRH-7TF/7F/iTF/iF, BIOS 3.3 07/13/2018
  48. [10169.188545] RIP: 0010:__list_del_entry_valid+0x25/0x90
  49. [10169.188547] Code: c3 0f 1f 40 00 48 b8 00 01 00 00 00 00 ad de 48 8b 17 4c 8b 47 08 48 39 c2 74 26 48 b8 22 01 00 00 00 00 ad de 49 39 c0 74 2b <49> 8b 30 48 39 fe 75 3a 48 8b 52 08 48 39 f2 75 48 b8 01 00 00 00
  50. [10169.188548] RSP: 0018:ffffc90005767cb8 EFLAGS: 00010017
  51. [10169.188550] RAX: dead000000000122 RBX: ffff88886dbc83e0 RCX: ffff88886ab35c00
  52. [10169.188551] RDX: ffffffff816635f0 RSI: ffff88873ed1a100 RDI: ffff88886dbc83e0
  53. [10169.188552] RBP: ffff88883f33ac00 R08: 0000000000000000 R09: 0000000000000001
  54. [10169.188553] R10: ffff888487c4aa00 R11: 00000000fffffffb R12: ffff88873ed1a100
  55. [10169.188554] R13: ffff88883f33aee8 R14: ffff88883f33aef8 R15: ffff88858009dc00
  56. [10169.188556] FS:  00007f096a0f5700(0000) GS:ffff88886fac0000(0000) knlGS:0000000000000000
  57. [10169.188557] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  58. [10169.188558] CR2: 0000000000000000 CR3: 000000000320a003 CR4: 00000000001626e0
  59. [10169.188559] Call Trace:
  60. [10169.188569]  io_cancel_async_work+0x54/0xc0
  61. [10169.188573]  io_uring_flush+0x3a/0x50
  62. [10169.188578]  filp_close+0x2f/0x60
  63. [10169.188581]  put_files_struct+0x63/0xa0
  64. [10169.188587]  do_exit+0x33f/0xb40
  65. [10169.188591]  do_group_exit+0x3a/0xa0
  66. [10169.188595]  get_signal+0x127/0x8b0
  67. [10169.188598]  ? preempt_count_add+0x49/0xa0
  68. [10169.188599]  ? preempt_count_add+0x68/0xa0
  69. [10169.188605]  do_signal+0x30/0x6b0
  70. [10169.188611]  ? __x64_sys_futex+0x137/0x170
  71. [10169.188615]  exit_to_usermode_loop+0x76/0xd0
  72. [10169.188618]  do_syscall_64+0x1b2/0x1f0
  73. [10169.188624]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
  74. [10169.188627] RIP: 0033:0x7f0bca4891f8
  75. [10169.188630] Code: Bad RIP value.
  76. [10169.188631] RSP: 002b:00007f096a0f4890 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
  77. [10169.188632] RAX: fffffffffffffdfc RBX: 00007f096a0f4920 RCX: 00007f0bca4891f8
  78. [10169.188633] RDX: 0000000000000000 RSI: 0000000000000189 RDI: 0000562dd4404478
  79. [10169.188634] RBP: 0000562dd4404478 R08: 0000000000000000 R09: 00000000ffffffff
  80. [10169.188635] R10: 00007f096a0f4920 R11: 0000000000000246 R12: 0000000000000000
  81. [10169.188636] R13: 0000000000000000 R14: fffffffeffffffff R15: 00007f096a0f4b00
  82. [10169.188638] Modules linked in: zfs(PO) zunicode(PO) zzstd(PO) zavl(PO) icp(PO) zcommon(PO) znvpair(PO) spl(O) act_police cls_flow lz4 lz4_compress lz4_decompress sch_sfq tun xt_multiport bnep bluetooth ecdh_generic ecc rfkill fuse bridge stp llc xt_helper xt_limit xt_state xt_conntrack xt_addrtype xt_pkttype iptable_raw xt_MASQUERADE xt_REDIRECT iptable_nat xt_TCPMSS iptable_mangle binfmt_misc xfs msdos fat zram sch_codel sch_fq act_mirred cls_u32 sch_tbf sch_ingress sch_htb l2tp_ip l2tp_eth l2tp_netlink l2tp_core ip6_udp_tunnel udp_tunnel ipv6 nf_conntrack_ftp xt_tcpmss xt_nat nf_nat nf_conntrack nf_defrag_ipv4 nf_defrag_ipv6 ifb adt7475 hwmon_vid nvidia(PO) zlua(PO) ipmi_ssif edac_core x86_pkg_temp_thermal coretemp kvm_intel kvm snd_cmipci irqbypass crct10dif_pclmul crc32_pclmul snd_mpu401_uart crc32c_intel snd_opl3_lib snd_hwdep snd_rawmidi snd_seq_device snd_pcm ghash_clmulni_intel efi_pstore snd_timer snd efivars soundcore i2c_i801 mei_me igb mei lpc_ich mfd_core ipmi_si ipmi_devintf
  83. [10169.188682]  ipmi_msghandler [last unloaded: spl]
  84. [10169.188687] CR2: 0000000000000000
  85. [10169.188690] ---[ end trace 8944d9b8d298f65a ]---
  86. [10173.697766] RIP: 0010:__list_del_entry_valid+0x25/0x90
  87. [10173.697768] Code: c3 0f 1f 40 00 48 b8 00 01 00 00 00 00 ad de 48 8b 17 4c 8b 47 08 48 39 c2 74 26 48 b8 22 01 00 00 00 00 ad de 49 39 c0 74 2b <49> 8b 30 48 39 fe 75 3a 48 8b 52 08 48 39 f2 75 48 b8 01 00 00 00
  88. [10173.697768] RSP: 0018:ffffc90005767cb8 EFLAGS: 00010017
  89. [10173.697769] RAX: dead000000000122 RBX: ffff88886dbc83e0 RCX: ffff88886ab35c00
  90. [10173.697771] RDX: ffffffff816635f0 RSI: ffff88873ed1a100 RDI: ffff88886dbc83e0
  91. [10173.697773] RBP: ffff88883f33ac00 R08: 0000000000000000 R09: 0000000000000001
  92. [10173.697774] R10: ffff888487c4aa00 R11: 00000000fffffffb R12: ffff88873ed1a100
  93. [10173.697775] R13: ffff88883f33aee8 R14: ffff88883f33aef8 R15: ffff88858009dc00
  94. [10173.697776] FS:  00007f096a0f5700(0000) GS:ffff88886fac0000(0000) knlGS:0000000000000000
  95. [10173.697778] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  96. [10173.697779] CR2: 00007f0bca4891ce CR3: 000000000320a003 CR4: 00000000001626e0
  97. [10173.697780] note: worker[9792] exited with preempt_count 1
  98. [10173.697781] Fixing recursive fault but reboot is needed!
  99.  
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