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: 10015 Comm: syz-executor5 Not tainted 5.0.0-rc4+ #57 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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 41 1c 89 e8 e6 20 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 RSP: 0018:ffff88805644fb10 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008 RBP: ffff88805644fb48 R08: 1ffffffff1238820 R09: fffffbfff1238821 R10: ffff88805644fb00 R11: ffffffff891c4107 R12: ffff88805705eb00 R13: 0000000000000000 R14: 0000000000000400 R15: 0000000000000007 FS: 00007f77d9b44700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000073c000 CR3: 0000000096a83000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ucma_listen+0x14d/0x1c0 drivers/infiniband/core/ucma.c:1100 ucma_write+0x2da/0x3c0 drivers/infiniband/core/ucma.c:1689 __vfs_write+0x116/0x8e0 fs/read_write.c:485 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:00007f77d9b43c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457e39 RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000005 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f77d9b446d4 R13: 00000000004c6ffc R14: 00000000004dc920 R15: 00000000ffffffff Modules linked in: kobject: 'loop4' (00000000bbb39bcf): kobject_uevent_env kobject: 'rx-0' (00000000baf358ce): kobject_cleanup, parent 00000000c56514bc kobject: 'loop4' (00000000bbb39bcf): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'rx-0' (00000000baf358ce): auto cleanup 'remove' event ---[ end trace ae749d9bc48949d7 ]--- kobject: 'rx-0' (00000000baf358ce): 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 kobject: 'rx-0' (00000000baf358ce): kobject_uevent_env: uevent_suppress caused the event to drop! Code: 8b ac 24 c8 01 00 00 31 f6 48 c7 c7 00 41 1c 89 e8 e6 20 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: 'rx-0' (00000000baf358ce): auto cleanup kobject_del kobject: 'rx-0' (00000000baf358ce): calling ktype release RSP: 0018:ffff88805644fb10 EFLAGS: 00010202 kobject: 'rx-0': free name RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 kobject: 'tx-0' (000000002a76435a): kobject_cleanup, parent 00000000c56514bc RDX: 0000000000000001 RSI: 0000000000000008 RDI: 0000000000000008 kobject: 'tx-0' (000000002a76435a): auto cleanup 'remove' event RBP: ffff88805644fb48 R08: 1ffffffff1238820 R09: fffffbfff1238821 kobject: 'tx-0' (000000002a76435a): kobject_uevent_env R10: ffff88805644fb00 R11: ffffffff891c4107 R12: ffff88805705eb00 kobject: 'tx-0' (000000002a76435a): kobject_uevent_env: uevent_suppress caused the event to drop! R13: 0000000000000000 R14: 0000000000000400 R15: 0000000000000007 kobject: 'tx-0' (000000002a76435a): auto cleanup kobject_del FS: 00007f77d9b44700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 kobject: 'tx-0' (000000002a76435a): calling ktype release CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'tx-0': free name CR2: 0000000000e69c98 CR3: 0000000096a83000 CR4: 00000000001426f0 kobject: 'queues' (00000000c56514bc): kobject_cleanup, parent (null) DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'queues' (00000000c56514bc): calling ktype release DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'queues' (00000000c56514bc): kset_release