------------[ cut here ]------------ kernel BUG at lib/list_debug.c:26! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 30747 Comm: syz-executor.3 Not tainted 5.4.0-rc6+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid.cold+0x3a/0x3c lib/list_debug.c:26 Code: 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 a0 ed e6 87 e8 b9 77 15 fe 0f 0b 48 89 f1 48 c7 c7 20 ed e6 87 4c 89 e6 e8 a5 77 15 fe <0f> 0b 4c 89 f6 48 c7 c7 c0 ee e6 87 e8 94 77 15 fe 0f 0b 4c 89 ea RSP: 0018:ffff88805a8d7c08 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff88806eb953b0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815cc5a6 RDI: ffffed100b51af73 RBP: ffff88805a8d7c20 R08: 0000000000000075 R09: ffffed1015d06159 R10: ffffed1015d06158 R11: ffff8880ae830ac7 R12: ffffffff89834ce0 R13: ffff88806eb951e0 R14: ffff88806eb951e0 R15: 0000000000000000 FS: 00007f41642de700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020400000 CR3: 00000000a9bc8000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_add include/linux/list.h:60 [inline] list_add_tail include/linux/list.h:93 [inline] cma_listen_on_all drivers/infiniband/core/cma.c:2509 [inline] rdma_listen+0x6b7/0x970 drivers/infiniband/core/cma.c:3563 ucma_listen+0x14d/0x1c0 drivers/infiniband/core/ucma.c:1092 ucma_write+0x2d7/0x3c0 drivers/infiniband/core/ucma.c:1684 __vfs_write+0x8a/0x110 fs/read_write.c:494 vfs_write+0x268/0x5d0 fs/read_write.c:558 ksys_write+0x220/0x290 fs/read_write.c:611 __do_sys_write fs/read_write.c:623 [inline] __se_sys_write fs/read_write.c:620 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:620 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a219 Code: ad b6 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 b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f41642ddc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a219 RDX: 0000000000000010 RSI: 00000000200001c0 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f41642de6d4 R13: 00000000004ca93f R14: 00000000004e2ce8 R15: 00000000ffffffff Modules linked in: ---[ end trace 645ff4980a673042 ]--- RIP: 0010:__list_add_valid.cold+0x3a/0x3c lib/list_debug.c:26 Code: 0b 48 89 f2 4c 89 e1 4c 89 ee 48 c7 c7 a0 ed e6 87 e8 b9 77 15 fe 0f 0b 48 89 f1 48 c7 c7 20 ed e6 87 4c 89 e6 e8 a5 77 15 fe <0f> 0b 4c 89 f6 48 c7 c7 c0 ee e6 87 e8 94 77 15 fe 0f 0b 4c 89 ea RSP: 0018:ffff88805a8d7c08 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffff88806eb953b0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff815cc5a6 RDI: ffffed100b51af73 RBP: ffff88805a8d7c20 R08: 0000000000000075 R09: ffffed1015d06159 R10: ffffed1015d06158 R11: ffff8880ae830ac7 R12: ffffffff89834ce0 R13: ffff88806eb951e0 R14: ffff88806eb951e0 R15: 0000000000000000 FS: 00007f41642de700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4164259db8 CR3: 00000000a9bc8000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400