grsecurity support • pax overflow in android binder

Code:

[  874.806063] PAX: size overflow detected in function binder_mmap drivers/android/binder.c:2911 cicus.568_197 min, count: 24, decl: user_buffer_offset; num: 0; context: binder_proc;
[  874.806068] CPU: 2 PID: 30397 Comm: servicemanager Tainted: G           O    4.9.22.r201704120836-1-grsec #2
[  874.806069] Hardware name: Dell Inc. Inspiron 5548/0FFJC4, BIOS A07 06/23/2016
[  874.806071]  0000000000000000 ffffffff81360aa2 ffffffff8197faf8 03875e56d266529e
[  874.806075]  ffffffff81951800 0000000000000b5f ffffffff811f7410 ffff88016d4a4000
[  874.806078]  ffffc90005e93d48 ffff8801bca5cac8 0000a0916bf61000 ffffffff8159858f
[  874.806081] Call Trace:
[  874.806087]  [<ffffffff81360aa2>] ? dump_stack+0x69/0xa7
[  874.806091]  [<ffffffff811f7410>] ? report_size_overflow+0x70/0x80
[  874.806094]  [<ffffffff8159858f>] ? binder_mmap+0x28f/0x3f0
[  874.806097]  [<ffffffff811ca375>] ? kmem_cache_alloc+0xe5/0x140
[  874.806100]  [<ffffffff8119dfb0>] ? mmap_region+0x620/0x930
[  874.806102]  [<ffffffff8119e883>] ? do_mmap+0x5c3/0x6d0
[  874.806104]  [<ffffffff81176d58>] ? vm_mmap_pgoff+0xc8/0x100
[  874.806106]  [<ffffffff8119ac80>] ? sys_mmap_pgoff+0x1b0/0x260
[  874.806109]  [<ffffffff816fa224>] ? entry_SYSCALL_64_fastpath+0x17/0x98


Statistics: Posted by alaviss — Fri Apr 21, 2017 3:34 am — Replies 3 — Views 21698