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UBSAN: shift-out-of-bounds in fs/mpage.c:189:40
shift exponent 4294967279 is too large for 64-bit type 'long long unsigned int'
CPU: 0 PID: 25724 Comm: syz-executor.1 Not tainted 5.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:79 [inline]
 dump_stack+0x141/0x1d7 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:327
 do_mpage_readpage.cold+0x226/0x2bb fs/mpage.c:189
 mpage_readahead+0x3a3/0x880 fs/mpage.c:389
 read_pages+0x1df/0x8d0 mm/readahead.c:130
 page_cache_ra_unbounded+0x61f/0x920 mm/readahead.c:238
 do_page_cache_ra mm/readahead.c:267 [inline]
 ondemand_readahead+0x65c/0x1190 mm/readahead.c:550
 page_cache_sync_ra+0x1cb/0x200 mm/readahead.c:578
 page_cache_sync_readahead include/linux/pagemap.h:864 [inline]
 filemap_get_pages+0x29f/0x1920 mm/filemap.c:2442
 filemap_read+0x2ca/0xe40 mm/filemap.c:2525
 generic_file_read_iter+0x397/0x4f0 mm/filemap.c:2676
 blkdev_read_iter+0x11b/0x180 fs/block_dev.c:1720
 call_read_iter include/linux/fs.h:2110 [inline]
 do_iter_readv_writev+0x56a/0x740 fs/read_write.c:738
 do_iter_read+0x285/0x6e0 fs/read_write.c:801
 vfs_readv+0xe5/0x150 fs/read_write.c:921
 do_readv+0x139/0x300 fs/read_write.c:958
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665f9
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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8a545a1188 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9
RDX: 0000000000000001 RSI: 0000000020000480 RDI: 0000000000000004
RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007fffe40cfe2f R14: 00007f8a545a1300 R15: 0000000000022000
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