Oops: general protection fault, probably for non-canonical address 0xdffffc00000a2403: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: probably user-memory-access in range [0x0000000000512018-0x000000000051201f] CPU: 1 UID: 0 PID: 6309 Comm: syz.3.296 Not tainted 6.11.0-rc6-syzkaller-00178-gd759ee240d3c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 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+0x6d9/0x3270 net/smc/smc_diag.c:217 Code: 80 3c 2c 00 74 08 48 89 df e8 13 90 97 f6 48 89 5c 24 30 48 8b 1b 48 85 db 0f 84 2d 02 00 00 48 83 c3 18 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 e8 8f 97 f6 48 8b 44 24 28 4c 8d RSP: 0018:ffffc90015406b00 EFLAGS: 00010206 RAX: 00000000000a2403 RBX: 0000000000512018 RCX: ffff888029cd0000 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffffc90015406f90 R08: ffffffff899745f2 R09: 1ffff1100f438473 R10: dffffc0000000000 R11: ffffed100f438474 R12: 1ffff1100f438509 R13: dffffc0000000000 R14: ffff88807a1c2340 R15: ffff888029d88010 FS: 00007f39c523a6c0(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200028c0 CR3: 000000005ff3c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: smc_diag_dump+0x59/0xa0 net/smc/smc_diag.c:236 netlink_dump+0x647/0xd80 net/netlink/af_netlink.c:2325 __netlink_dump_start+0x5a2/0x790 net/netlink/af_netlink.c:2440 netlink_dump_start include/linux/netlink.h:339 [inline] smc_diag_handler_dump+0x1ab/0x250 net/smc/smc_diag.c:251 sock_diag_rcv_msg+0x3dc/0x5f0 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 sock_sendmsg+0x134/0x200 net/socket.c:768 splice_to_socket+0xa13/0x10b0 fs/splice.c:889 do_splice_from fs/splice.c:941 [inline] do_splice+0xd77/0x1900 fs/splice.c:1354 __do_splice fs/splice.c:1436 [inline] __do_sys_splice fs/splice.c:1652 [inline] __se_sys_splice+0x331/0x4a0 fs/splice.c:1634 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f39c437cef9 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:00007f39c523a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00007f39c4536058 RCX: 00007f39c437cef9 RDX: 0000000000000006 RSI: 0000000000000000 RDI: 0000000000000004 RBP: 00007f39c43ef046 R08: 0000000080000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f39c4536058 R15: 00007ffd7fda14c8 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+0x6d9/0x3270 net/smc/smc_diag.c:217 Code: 80 3c 2c 00 74 08 48 89 df e8 13 90 97 f6 48 89 5c 24 30 48 8b 1b 48 85 db 0f 84 2d 02 00 00 48 83 c3 18 48 89 d8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 df e8 e8 8f 97 f6 48 8b 44 24 28 4c 8d RSP: 0018:ffffc90015406b00 EFLAGS: 00010206 RAX: 00000000000a2403 RBX: 0000000000512018 RCX: ffff888029cd0000 RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000 RBP: ffffc90015406f90 R08: ffffffff899745f2 R09: 1ffff1100f438473 R10: dffffc0000000000 R11: ffffed100f438474 R12: 1ffff1100f438509 R13: dffffc0000000000 R14: ffff88807a1c2340 R15: ffff888029d88010 FS: 00007f39c523a6c0(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200028c0 CR3: 000000005ff3c000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 80 3c 2c 00 cmpb $0x0,(%rsp,%rbp,1) 4: 74 08 je 0xe 6: 48 89 df mov %rbx,%rdi 9: e8 13 90 97 f6 call 0xf6979021 e: 48 89 5c 24 30 mov %rbx,0x30(%rsp) 13: 48 8b 1b mov (%rbx),%rbx 16: 48 85 db test %rbx,%rbx 19: 0f 84 2d 02 00 00 je 0x24c 1f: 48 83 c3 18 add $0x18,%rbx 23: 48 89 d8 mov %rbx,%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: 48 89 df mov %rbx,%rdi 34: e8 e8 8f 97 f6 call 0xf6979021 39: 48 8b 44 24 28 mov 0x28(%rsp),%rax 3e: 4c rex.WR 3f: 8d .byte 0x8d