kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12892 Comm: syz-executor.5 Not tainted 5.0.0-rc5+ #65 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 kobject: 'kvm' (00000000a66dd60a): kobject_uevent_env RIP: 0010:cma_bind_listen drivers/infiniband/core/cma.c:3358 [inline] RIP: 0010:rdma_listen+0x2df/0x8e0 drivers/infiniband/core/cma.c:3472 Code: 8b ac 24 c8 01 00 00 31 f6 48 c7 c7 00 43 1c 89 e8 36 48 fb 01 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5a 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b kobject: 'kvm' (00000000a66dd60a): fill_kobj_path: path = '/devices/virtual/misc/kvm' RSP: 0018:ffff888051a3fb10 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008 RBP: ffff888051a3fb48 R08: 1ffffffff1238860 R09: fffffbfff1238861 R10: ffff888051a3fb00 R11: ffffffff891c4307 R12: ffff8880599594c0 R13: 0000000000000000 R14: 0000000000000400 R15: 0000000000000007 FS: 00007fd378716700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0962272000 CR3: 00000000a0b1d000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 kobject: 'kvm' (00000000a66dd60a): kobject_uevent_env Call Trace: ucma_listen+0x14d/0x1c0 drivers/infiniband/core/ucma.c:1100 kobject: 'kvm' (00000000a66dd60a): fill_kobj_path: path = '/devices/virtual/misc/kvm' ucma_write+0x2da/0x3c0 drivers/infiniband/core/ucma.c:1689 __vfs_write+0x116/0x8e0 fs/read_write.c:485 kobject: 'kvm' (00000000a66dd60a): kobject_uevent_env kobject: 'kvm' (00000000a66dd60a): fill_kobj_path: path = '/devices/virtual/misc/kvm' vfs_write+0x20c/0x580 fs/read_write.c:549 ksys_write+0xea/0x1f0 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457e39 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd378715c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd3787166d4 R13: 00000000004c7064 R14: 00000000004dca18 R15: 00000000ffffffff Modules linked in: ---[ end trace 5940a89b0bd8741e ]--- RIP: 0010:cma_bind_listen drivers/infiniband/core/cma.c:3358 [inline] RIP: 0010:rdma_listen+0x2df/0x8e0 drivers/infiniband/core/cma.c:3472 Code: 8b ac 24 c8 01 00 00 31 f6 48 c7 c7 00 43 1c 89 e8 36 48 fb 01 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5a 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b kobject: 'loop0' (00000000a3e01190): kobject_uevent_env RSP: 0018:ffff888051a3fb10 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008 kobject: 'loop0' (00000000a3e01190): fill_kobj_path: path = '/devices/virtual/block/loop0' RBP: ffff888051a3fb48 R08: 1ffffffff1238860 R09: fffffbfff1238861 kobject: 'loop1' (000000004b7a2bb2): kobject_uevent_env R10: ffff888051a3fb00 R11: ffffffff891c4307 R12: ffff8880599594c0 netlink: 26 bytes leftover after parsing attributes in process `syz-executor.2'. R13: 0000000000000000 R14: 0000000000000400 R15: 0000000000000007 kobject: 'loop1' (000000004b7a2bb2): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'kvm' (00000000a66dd60a): kobject_uevent_env kobject: 'loop4' (0000000051b3e873): kobject_uevent_env FS: 00007fd378716700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 kobject: 'loop4' (0000000051b3e873): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'kvm' (00000000a66dd60a): fill_kobj_path: path = '/devices/virtual/misc/kvm' kobject: 'loop3' (00000000b730fcc8): kobject_uevent_env kobject: 'loop3' (00000000b730fcc8): fill_kobj_path: path = '/devices/virtual/block/loop3' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Unknown ioctl -1067952631 CR2: 000000000047008d CR3: 00000000a0b1d000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop0' (00000000a3e01190): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 kobject: 'loop0' (00000000a3e01190): fill_kobj_path: path = '/devices/virtual/block/loop0'