================================================================================
UBSAN: Undefined behaviour in net/sunrpc/xprt.c:568:22
shift exponent 2047 is too large for 64-bit type 'long unsigned int'
CPU: 0 PID: 30051 Comm: syz-executor.2 Not tainted 4.19.152-syzkaller #0
x_tables: duplicate underflow at hook 1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x22c/0x33e lib/dump_stack.c:118
 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
FS-Cache: Duplicate cookie detected
 __ubsan_handle_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
 xprt_reset_majortimeo+0x2f8/0x3b0 net/sunrpc/xprt.c:568
 xprt_request_init net/sunrpc/xprt.c:1290 [inline]
 xprt_do_reserve+0x438/0x530 net/sunrpc/xprt.c:1300
 xprt_reserve+0x129/0x1f0 net/sunrpc/xprt.c:1322
FS-Cache: O-cookie c=00000000de378731 [p=00000000817e0a9b fl=222 nc=0 na=1]
 __rpc_execute+0x1f7/0xb80 net/sunrpc/sched.c:783
 rpc_execute+0x242/0x370 net/sunrpc/sched.c:851
 rpc_run_task+0x4e3/0x6a0 net/sunrpc/clnt.c:1064
 rpc_call_sync+0xb8/0x190 net/sunrpc/clnt.c:1093
FS-Cache: O-cookie d=00000000ecd1613c n=00000000ea113137
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=00000000fe9cc526 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=000000004818f2a5
 rpc_ping+0xb5/0x110 net/sunrpc/clnt.c:2527
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
 rpc_create_xprt+0x313/0x3c0 net/sunrpc/clnt.c:479
 rpc_create+0x31e/0x540 net/sunrpc/clnt.c:587
 nfs_create_rpc_client+0x36f/0x440 fs/nfs/client.c:529
x_tables: duplicate underflow at hook 1
 nfs_init_client fs/nfs/client.c:640 [inline]
 nfs_init_client+0x6d/0x100 fs/nfs/client.c:627
 nfs_get_client+0xf9f/0x13e0 fs/nfs/client.c:431
 nfs_init_server+0x249/0xe10 fs/nfs/client.c:676
 nfs_create_server+0x7a/0x4f0 fs/nfs/client.c:960
 nfs_try_mount+0x172/0x940 fs/nfs/super.c:1884
 nfs_fs_mount+0x171f/0x2e8e fs/nfs/super.c:2701
 mount_fs+0xa3/0x318 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2469 [inline]
 do_mount+0x51c/0x2f10 fs/namespace.c:2799
 ksys_mount+0xcf/0x130 fs/namespace.c:3015
 __do_sys_mount fs/namespace.c:3029 [inline]
 __se_sys_mount fs/namespace.c:3026 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3026
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de59
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f9422ca1c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000000021740 RCX: 000000000045de59
RDX: 0000000020fb5ffc RSI: 0000000020000140 RDI: 0000000000000000
RBP: 000000000118bf70 R08: 000000002000a000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffd946523af R14: 00007f9422ca29c0 R15: 000000000118bf2c
================================================================================
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=0000000081f53c55 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=00000000172b078a
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=00000000a465b0a4 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=000000007164b280
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=0000000081f53c55 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=00000000172b078a
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=0000000028013f71 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=00000000661675d9
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=0000000081f53c55 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=00000000172b078a
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=00000000c7d20da5 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=00000000cf3c6a3f
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=0000000081f53c55 [p=00000000817e0a9b fl=222 nc=0 na=1]
x_tables: duplicate underflow at hook 1
FS-Cache: O-cookie d=00000000ecd1613c n=00000000172b078a
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=00000000a1a6725f [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=00000000c70e67b7
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=0000000081f53c55 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=00000000172b078a
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=000000000ad46075 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=000000005b7bb5b6
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=0000000081f53c55 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=00000000172b078a
x_tables: duplicate underflow at hook 1
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=00000000849d85af [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=0000000095fe464e
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=000000000a4986f5 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=00000000f079b61d
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=000000000cecb485 [p=00000000817e0a9b fl=2 nc=0 na=1]
x_tables: duplicate underflow at hook 1
FS-Cache: N-cookie d=00000000ecd1613c n=0000000095ce2a02
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=000000000a4986f5 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=00000000f079b61d
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
x_tables: duplicate underflow at hook 1
FS-Cache: N-cookie c=000000001bf0fc02 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=00000000d7854623
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=00000000e0a56f92 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=000000001eb12732
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=00000000fa67e4c1 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=00000000195aab41
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
FS-Cache: Duplicate cookie detected
FS-Cache: O-cookie c=00000000e0a56f92 [p=00000000817e0a9b fl=222 nc=0 na=1]
FS-Cache: O-cookie d=00000000ecd1613c n=000000001eb12732
FS-Cache: O-key=[16] '0200000000000000020000807f000008'
FS-Cache: N-cookie c=0000000029501c31 [p=00000000817e0a9b fl=2 nc=0 na=1]
FS-Cache: N-cookie d=00000000ecd1613c n=00000000e7050408
FS-Cache: N-key=[16] '0200000000000000020000807f000008'
x_tables: duplicate underflow at hook 1
x_tables: duplicate underflow at hook 1