grsecurity forums

I guess it is a false positive detection but I'm not an expert on it. It is happen any execution of git pull on a GlusterFS volume.

May 31 18:33:11 A kernel: [ 263.307811] PAX: size overflow detected in function invalidate_inode_pages2_range mm/truncate.c:614 cicus.190_304 max, count: 7, decl: unmap_mapping_range; num: 3; context: fndecl;
May 31 18:33:11 A kernel: [ 263.311246] CPU: 5 PID: 10728 Comm: git Not tainted 4.5.5-kvm-guest-intel64-grsec #1
May 31 18:33:11 A kernel: [ 263.311249] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
May 31 18:33:11 A kernel: [ 263.311251] 0000000000000049 ffffffff81343e24 00000000000000a8 ffffffff8180e17c
May 31 18:33:11 A kernel: [ 263.311254] 0000000000000000 ffffffff8112c115 0000000000000040 ffffea0020aed2c0
May 31 18:33:11 A kernel: [ 263.311256] ffffc9000a1c3cf0 ffff880850b67620 ffffffff810ce5fa ffffffffffffffff
May 31 18:33:11 A kernel: [ 263.311258] Call Trace:
May 31 18:33:11 A kernel: [ 263.311282] [<ffffffff81343e24>] ? dump_stack+0x5e/0x89
May 31 18:33:11 A kernel: [ 263.311288] [<ffffffff8112c115>] ? report_size_overflow+0x35/0x75
May 31 18:33:11 A kernel: [ 263.311292] [<ffffffff810ce5fa>] ? invalidate_inode_pages2_range+0x34a/0x5f7
May 31 18:33:11 A kernel: [ 263.311297] [<ffffffff812601d1>] ? fuse_readdir+0x3cb/0x587
May 31 18:33:11 A kernel: [ 263.311299] [<ffffffff812601d1>] ? fuse_readdir+0x3cb/0x587
May 31 18:33:11 A kernel: [ 263.311302] [<ffffffff811363d9>] ? iterate_dir+0x78/0xf8
May 31 18:33:11 A kernel: [ 263.311304] [<ffffffff811363d9>] ? iterate_dir+0x78/0xf8
May 31 18:33:11 A kernel: [ 263.311306] [<ffffffff811365ec>] ? sys_getdents+0x101/0x15e
May 31 18:33:11 A kernel: [ 263.311308] [<ffffffff81135d4e>] ? sys_ioctl+0x5a/0x5a
May 31 18:33:11 A kernel: [ 263.311313] [<ffffffff81651766>] ? entry_SYSCALL_64_fastpath+0x12/0x80
May 31 18:33:11 A kernel: [ 263.311315] [<ffffffff81651766>] ? entry_SYSCALL_64_fastpath+0x12/0x80
May 31 18:33:11 A kernel: [ 263.311320] [<ffffffff81033a2c>] ? __do_page_fault+0x1d7/0x3b1


Kernel: 4.5.5
GCC: 4.9.2 (Debian Jessie 4.9.2-2)

Hi,
could you please apply this patch and send me the result from dmesg?
https://bugs.gentoo.org/show_bug.cgi?id=584332#c2