Hello, I have attached the output of my findings, with the help of
others. Initially reported on Gentoo Bugzilla here:
https://bugs.gentoo.org/show_bug.cgi?id=584332

Thanks in advance, be well.

emese, sorry for the multiple CC's, also spender's bouncing my mail for
not having a valid hostname set.
[  177.145398] PAX: end: ffffffffffffffff index: 0
[  177.145400] PAX: size overflow detected in function 
invalidate_inode_pages2_range mm/truncate.c:609 cicus.121_227 max, count: 5, 
decl: un
map_mapping_range; num: 3; context: fndecl;
[  177.145532] CPU: 2 PID: 3672 Comm: xfs_fsr Not tainted 4.7.10-hardened #2
[  177.145533] Hardware name: FUJITSU D3417-B1/D3417-B1, BIOS V5.0.0.11 
R1.15.0.SR.1 for D3417-B1x               07/19/2016
[  177.145534]  ffffffff8113abcf 44c84602ff0d519d 0000000000000000 
ffffc9001227bb40
[  177.145535]  ffffffff814e8245 0000000000000261 44c84602ff0d519d 
ffffffff81e07e6e
[  177.145536]  ffffffff81e07e98 ffffc9001227bb70 ffffffff81222869 
ffffea0040b887c0
[  177.145538] Call Trace:
[  177.145542]  [<ffffffff8113abcf>] ? dump_stack_print_info+0x94/0xab
[  177.145545]  [<ffffffff814e8245>] dump_stack+0x74/0xbb
[  177.145546]  [<ffffffff81222869>] report_size_overflow+0x3d/0x80
[  177.145549]  [<ffffffff811b36ef>] invalidate_inode_pages2_range+0x2ac/0x559
[  177.145550]  [<ffffffff811b39b4>] invalidate_inode_pages2+0x18/0x28
[  177.145551]  [<ffffffff811b39b4>] ? invalidate_inode_pages2+0x18/0x28
[  177.145552]  [<ffffffff813ea690>] xfs_file_read_iter+0x181/0x232
[  177.145554]  [<ffffffff812199d6>] __vfs_read+0x12b/0x173
[  177.145556]  [<ffffffff8121aa7b>] vfs_read+0x14c/0x210
[  177.145557]  [<ffffffff8121c26e>] sys_read+0x61/0xc0
[  177.145558]  [<ffffffff8121c26e>] ? sys_read+0x61/0xc0
[  177.145561]  [<ffffffff81a4a2d0>] entry_SYSCALL_64_fastpath+0x1a/0xbd
[  177.145563]  [<ffffffff81a4a303>] ? entry_SYSCALL_64_fastpath+0x4d/0xbd
[  177.185050] PAX: end: ffffffffffffffff index: 54
[  177.185052] PAX: size overflow detected in function 
invalidate_inode_pages2_range mm/truncate.c:609 cicus.121_227 max, count: 5, 
decl: un
map_mapping_range; num: 3; context: fndecl;
[  177.185210] CPU: 0 PID: 3672 Comm: xfs_fsr Not tainted 4.7.10-hardened #2
[  177.185210] Hardware name: FUJITSU D3417-B1/D3417-B1, BIOS V5.0.0.11 
R1.15.0.SR.1 for D3417-B1x               07/19/2016
[  177.185211]  ffffffff8113abcf 44c84602ff0d519d 0000000000000000 
ffffc9001227bb40
[  177.185213]  ffffffff814e8245 0000000000000261 44c84602ff0d519d 
ffffffff81e07e6e
[  177.185214]  ffffffff81e07e98 ffffc9001227bb70 ffffffff81222869 
ffffea0002cfcb00
[  177.185216] Call Trace:
[  177.185220]  [<ffffffff8113abcf>] ? dump_stack_print_info+0x94/0xab
[  177.185222]  [<ffffffff814e8245>] dump_stack+0x74/0xbb
[  177.185225]  [<ffffffff81222869>] report_size_overflow+0x3d/0x80
[  177.185227]  [<ffffffff811b36ef>] invalidate_inode_pages2_range+0x2ac/0x559
[  177.185228]  [<ffffffff811b39b4>] invalidate_inode_pages2+0x18/0x28
[  177.185229]  [<ffffffff811b39b4>] ? invalidate_inode_pages2+0x18/0x28
[  177.185231]  [<ffffffff813ea690>] xfs_file_read_iter+0x181/0x232
[  177.185232]  [<ffffffff812199d6>] __vfs_read+0x12b/0x173
[  177.185234]  [<ffffffff8121aa7b>] vfs_read+0x14c/0x210
[  177.185235]  [<ffffffff8121c26e>] sys_read+0x61/0xc0
[  177.185236]  [<ffffffff8121c26e>] ? sys_read+0x61/0xc0
[  177.185239]  [<ffffffff81a4a2d0>] entry_SYSCALL_64_fastpath+0x1a/0xbd
[  177.187000] PAX: end: ffffffffffffffff index: 4a
[  177.187001] PAX: size overflow detected in function 
invalidate_inode_pages2_range mm/truncate.c:609 cicus.121_227 max, count: 5, 
decl: un
map_mapping_range; num: 3; context: fndecl;
[  177.187193] CPU: 0 PID: 3672 Comm: xfs_fsr Not tainted 4.7.10-hardened #2
[  177.187193] Hardware name: FUJITSU D3417-B1/D3417-B1, BIOS V5.0.0.11 
R1.15.0.SR.1 for D3417-B1x               07/19/2016
[  177.187194]  ffffffff8113abcf 44c84602ff0d519d 0000000000000000 
ffffc9001227bae0
[  177.187195]  ffffffff814e8245 0000000000000261 44c84602ff0d519d 
ffffffff81e07e6e
[  177.187197]  ffffffff81e07e98 ffffc9001227bb10 ffffffff81222869 
ffffea0002cb6bc0
[  177.187212] Call Trace:
[  177.187215]  [<ffffffff8113abcf>] ? dump_stack_print_info+0x94/0xab
[  177.187217]  [<ffffffff814e8245>] dump_stack+0x74/0xbb
[  177.187220]  [<ffffffff81222869>] report_size_overflow+0x3d/0x80
[  177.187221]  [<ffffffff811b36ef>] invalidate_inode_pages2_range+0x2ac/0x559
[  177.187223]  [<ffffffff811b39b4>] invalidate_inode_pages2+0x18/0x28
[  177.187224]  [<ffffffff811b39b4>] ? invalidate_inode_pages2+0x18/0x28
[  177.187225]  [<ffffffff813ea690>] xfs_file_read_iter+0x181/0x232
[  177.187227]  [<ffffffff812199d6>] __vfs_read+0x12b/0x173
[  177.187228]  [<ffffffff8121aa7b>] vfs_read+0x14c/0x210
[  177.187230]  [<ffffffff8121c26e>] sys_read+0x61/0xc0
[  177.187231]  [<ffffffff8121c26e>] ? sys_read+0x61/0xc0
[  177.187233]  [<ffffffff81a4a2d0>] entry_SYSCALL_64_fastpath+0x1a/0xbd
[  177.187235]  [<ffffffff81a4a303>] ? entry_SYSCALL_64_fastpath+0x4d/0xbd
[  177.188987] PAX: end: ffffffffffffffff index: 51
[  177.191533] PAX: end: ffffffffffffffff index: 51
[  177.192782] PAX: end: ffffffffffffffff index: 51

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