Oops: general protection fault, probably for non-canonical address 0xfbd5a5d5a0000003: 0000 [#1] SMP KASAN PTI KASAN: maybe wild-memory-access in range [0xdead4ead00000018-0xdead4ead0000001f] CPU: 1 UID: 0 PID: 10961 Comm: syz.0.1627 Not tainted 6.16.0-rc7-syzkaller-00100-gafd8c2c9e2e2 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline] RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline] RIP: 0010:smc_diag_dump_proto+0x4d0/0x1f80 net/smc/smc_diag.c:217 Code: 80 3c 2f 00 74 08 48 89 df e8 7c 7c 05 f7 4c 8b 23 4d 85 e4 0f 84 22 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 51 7c 05 f7 4d 8b 2c 24 49 83 c5 RSP: 0018:ffffc9001c61efc0 EFLAGS: 00010a06 RAX: 1bd5a9d5a0000003 RBX: ffff88807c1dee38 RCX: ffff88807d731e00 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffffc9001c61f330 R08: ffff88807c1de85f R09: 1ffff1100f83bd0b R10: dffffc0000000000 R11: ffffed100f83bd0c R12: dead4ead00000018 R13: dffffc0000000000 R14: ffff88807c1de800 R15: 1ffff1100f83bdc7 FS: 00007ff05c2856c0(0000) GS:ffff888125d23000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000e000 CR3: 0000000034746000 CR4: 00000000003526f0 Call Trace: smc_diag_dump+0x59/0xa0 net/smc/smc_diag.c:236 netlink_dump+0x6db/0xe60 net/netlink/af_netlink.c:2327 __netlink_dump_start+0x5cb/0x7e0 net/netlink/af_netlink.c:2442 netlink_dump_start include/linux/netlink.h:341 [inline] smc_diag_handler_dump+0x178/0x210 net/smc/smc_diag.c:251 sock_diag_rcv_msg+0x4c9/0x600 net/core/sock_diag.c:-1 netlink_rcv_skb+0x205/0x470 net/netlink/af_netlink.c:2552 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x759/0x8e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:712 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:727 ____sys_sendmsg+0x505/0x830 net/socket.c:2566 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2620 __sys_sendmsg net/socket.c:2652 [inline] __do_sys_sendmsg net/socket.c:2657 [inline] __se_sys_sendmsg net/socket.c:2655 [inline] __x64_sys_sendmsg+0x19b/0x260 net/socket.c:2655 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff05b38e9a9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff05c285038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007ff05b5b6080 RCX: 00007ff05b38e9a9 RDX: 0000000000000600 RSI: 0000200000000540 RDI: 0000000000000014 RBP: 00007ff05b410d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007ff05b5b6080 R15: 00007fffa212f548 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline] RIP: 0010:__smc_diag_dump net/smc/smc_diag.c:89 [inline] RIP: 0010:smc_diag_dump_proto+0x4d0/0x1f80 net/smc/smc_diag.c:217 Code: 80 3c 2f 00 74 08 48 89 df e8 7c 7c 05 f7 4c 8b 23 4d 85 e4 0f 84 22 02 00 00 48 89 5c 24 38 49 83 c4 18 4c 89 e0 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 e7 e8 51 7c 05 f7 4d 8b 2c 24 49 83 c5 RSP: 0018:ffffc9001c61efc0 EFLAGS: 00010a06 RAX: 1bd5a9d5a0000003 RBX: ffff88807c1dee38 RCX: ffff88807d731e00 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffffc9001c61f330 R08: ffff88807c1de85f R09: 1ffff1100f83bd0b R10: dffffc0000000000 R11: ffffed100f83bd0c R12: dead4ead00000018 R13: dffffc0000000000 R14: ffff88807c1de800 R15: 1ffff1100f83bdc7 FS: 00007ff05c2856c0(0000) GS:ffff888125d23000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000e000 CR3: 0000000034746000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: 80 3c 2f 00 cmpb $0x0,(%rdi,%rbp,1) 4: 74 08 je 0xe 6: 48 89 df mov %rbx,%rdi 9: e8 7c 7c 05 f7 call 0xf7057c8a e: 4c 8b 23 mov (%rbx),%r12 11: 4d 85 e4 test %r12,%r12 14: 0f 84 22 02 00 00 je 0x23c 1a: 48 89 5c 24 38 mov %rbx,0x38(%rsp) 1f: 49 83 c4 18 add $0x18,%r12 23: 4c 89 e0 mov %r12,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) <-- trapping instruction 2f: 74 08 je 0x39 31: 4c 89 e7 mov %r12,%rdi 34: e8 51 7c 05 f7 call 0xf7057c8a 39: 4d 8b 2c 24 mov (%r12),%r13 3d: 49 rex.WB 3e: 83 .byte 0x83 3f: c5 .byte 0xc5