================================================================================ UBSAN: shift-out-of-bounds in net/sunrpc/xprt.c:658:14 shift exponent 19110 is too large for 64-bit type 'long unsigned int' CPU: 1 PID: 10036 Comm: syz-executor.0 Not tainted 5.11.0-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0xfa/0x151 lib/dump_stack.c:120 ubsan_epilogue+0xb/0x5a lib/ubsan.c:148 __ubsan_handle_shift_out_of_bounds.cold+0xb1/0x181 lib/ubsan.c:395 xprt_calc_majortimeo.isra.0.cold+0x17/0x46 net/sunrpc/xprt.c:658 xprt_init_majortimeo net/sunrpc/xprt.c:686 [inline] xprt_request_init+0x486/0x9c0 net/sunrpc/xprt.c:1805 xprt_do_reserve net/sunrpc/xprt.c:1815 [inline] xprt_reserve+0x18f/0x280 net/sunrpc/xprt.c:1836 __rpc_execute+0x21d/0x12d0 net/sunrpc/sched.c:891 rpc_execute+0x230/0x330 net/sunrpc/sched.c:967 rpc_run_task+0x5d0/0x8f0 net/sunrpc/clnt.c:1140 rpc_call_sync+0xc6/0x1a0 net/sunrpc/clnt.c:1169 rpc_ping net/sunrpc/clnt.c:2682 [inline] rpc_create_xprt+0x3f1/0x4a0 net/sunrpc/clnt.c:477 rpc_create+0x354/0x670 net/sunrpc/clnt.c:593 nfs_create_rpc_client+0x4eb/0x680 fs/nfs/client.c:536 nfs_init_client fs/nfs/client.c:653 [inline] nfs_init_client+0x6d/0x100 fs/nfs/client.c:640 nfs_get_client+0x10ee/0x1450 fs/nfs/client.c:430 nfs_init_server.isra.0+0x2c0/0xed0 fs/nfs/client.c:692 nfs_create_server+0x18f/0x650 fs/nfs/client.c:996 nfs_try_get_tree+0x166/0x940 fs/nfs/super.c:951 nfs_get_tree+0x116a/0x1510 fs/nfs/fs_context.c:1350 vfs_get_tree+0x89/0x2f0 fs/super.c:1497 do_new_mount fs/namespace.c:2916 [inline] path_mount+0x132a/0x1f90 fs/namespace.c:3246 do_mount fs/namespace.c:3259 [inline] __do_sys_mount fs/namespace.c:3467 [inline] __se_sys_mount fs/namespace.c:3444 [inline] __ia32_sys_mount+0x27e/0x300 fs/namespace.c:3444 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x80 arch/x86/entry/common.c:139 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:164 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f1b549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f55155fc EFLAGS: 00000296 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 0000000020000100 RCX: 0000000020343ff8 RDX: 0000000020fb5ffc RSI: 0000000000000000 RDI: 000000002000a000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ================================================================================