QAT: Invalid ioctl ================================================================== BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:345 [inline] BUG: KASAN: slab-out-of-bounds in dh_pack_data crypto/dh_helper.c:21 [inline] BUG: KASAN: slab-out-of-bounds in crypto_dh_encode_key+0x670/0x830 crypto/dh_helper.c:64 Write of size 152 at addr ffff8801a81fa8c4 by task syz-executor5/10837 CPU: 1 PID: 10837 Comm: syz-executor5 Not tainted 4.18.0-rc7-next-20180803+ #31 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+0x1c9/0x2b4 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x30d mm/kasan/report.c:412 check_memory_region_inline mm/kasan/kasan.c:260 [inline] check_memory_region+0x13e/0x1b0 mm/kasan/kasan.c:267 memcpy+0x37/0x50 mm/kasan/kasan.c:303 memcpy include/linux/string.h:345 [inline] dh_pack_data crypto/dh_helper.c:21 [inline] crypto_dh_encode_key+0x670/0x830 crypto/dh_helper.c:64 __keyctl_dh_compute+0x707/0x1c00 security/keys/dh.c:316 keyctl_dh_compute+0xc5/0x11f security/keys/dh.c:427 __do_sys_keyctl security/keys/keyctl.c:1741 [inline] __se_sys_keyctl security/keys/keyctl.c:1637 [inline] __x64_sys_keyctl+0x12a/0x3b0 security/keys/keyctl.c:1637 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x456cb9 Code: fd 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4fc58bec78 EFLAGS: 00000246 ORIG_RAX: 00000000000000fa RAX: ffffffffffffffda RBX: 00007f4fc58bf6d4 RCX: 0000000000456cb9 RDX: 0000000020000540 RSI: 0000000020000840 RDI: 0000000000000017 RBP: 00000000009300a0 R08: 0000000020000780 R09: 0000000000000000 R10: 0000000000000089 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004d1920 R14: 00000000004c72f5 R15: 0000000000000000 Allocated by task 10837: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x14e/0x760 mm/slab.c:3727 kmalloc include/linux/slab.h:518 [inline] __keyctl_dh_compute+0x6e1/0x1c00 security/keys/dh.c:311 keyctl_dh_compute+0xc5/0x11f security/keys/dh.c:427 __do_sys_keyctl security/keys/keyctl.c:1741 [inline] __se_sys_keyctl security/keys/keyctl.c:1637 [inline] __x64_sys_keyctl+0x12a/0x3b0 security/keys/keyctl.c:1637 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 9369: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xd9/0x260 mm/slab.c:3813 mousedev_release+0x68/0xc0 drivers/input/mousedev.c:529 __fput+0x376/0x8a0 fs/file_table.c:279 ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8801a81fa780 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 324 bytes inside of 512-byte region [ffff8801a81fa780, ffff8801a81fa980) The buggy address belongs to the page: page:ffffea0006a07e80 count:1 mapcount:0 mapping:ffff8801dac00940 index:0xffff8801a81fac80 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffffea00073eb0c8 ffffea00072a5c48 ffff8801dac00940 raw: ffff8801a81fac80 ffff8801a81fa000 0000000100000005 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801a81fa800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8801a81fa880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff8801a81fa900: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc ^ ffff8801a81fa980: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8801a81faa00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================