netlink: 4 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor6'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor1'. ================================================================== SELinux: policydb magic number 0x18 does not match expected magic number 0xf97cff8c BUG: KASAN: stack-out-of-bounds in get_frame_pointer arch/x86/include/asm/stacktrace.h:64 [inline] BUG: KASAN: stack-out-of-bounds in __unwind_start+0x37c/0x3c0 arch/x86/kernel/unwind_frame.c:76 Read of size 8 at addr ffff8801b8427828 by task syz-executor7/12681 CPU: 1 PID: 12681 Comm: syz-executor7 Not tainted 4.9.124-g09eb2ba #83 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff88018cd37898 ffffffff81eb95e9 ffffea0006e109c0 ffff8801b8427828 0000000000000000 ffff8801b8427828 ffff88018cd379d0 ffff88018cd378d0 ffffffff8156c35e ffff8801b8427828 0000000000000008 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] print_address_description+0x6c/0x234 mm/kasan/report.c:256 [] kasan_report_error mm/kasan/report.c:355 [inline] [] kasan_report.cold.6+0x242/0x2fe mm/kasan/report.c:412 [] __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 [] get_frame_pointer arch/x86/include/asm/stacktrace.h:64 [inline] [] __unwind_start+0x37c/0x3c0 arch/x86/kernel/unwind_frame.c:76 [] unwind_start arch/x86/include/asm/unwind.h:39 [inline] [] __save_stack_trace+0x59/0xf0 arch/x86/kernel/stacktrace.c:41 [] save_stack_trace_tsk+0x48/0x70 arch/x86/kernel/stacktrace.c:71 [] proc_pid_stack+0x148/0x220 fs/proc/base.c:469 [] proc_single_show+0xfd/0x170 fs/proc/base.c:771 [] seq_read+0x4b6/0x12e0 fs/seq_file.c:240 [] __vfs_read+0x115/0x570 fs/read_write.c:449 [] vfs_read+0x120/0x380 fs/read_write.c:472 [] SYSC_pread64 fs/read_write.c:626 [inline] [] SyS_pread64+0x145/0x170 fs/read_write.c:613 [] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb The buggy address belongs to the page: page:ffffea0006e109c0 count:0 mapcount:0 mapping: (null) index:0x0 flags: 0x8000000000000000() page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801b8427700: 00 00 00 00 00 00 00 00 00 00 00 00 00 f1 f1 f1 ffff8801b8427780: f1 02 f2 f2 f2 f2 f2 f2 f2 04 f2 f2 f2 f2 f2 f2 >ffff8801b8427800: f2 00 f2 f2 f2 f2 f2 f2 f2 00 f2 f2 f2 f2 f2 f2 ^ ffff8801b8427880: f2 00 f2 f2 f2 f2 f2 f2 f2 00 00 f2 f2 f2 f2 f2 ffff8801b8427900: f2 00 00 f2 f2 f2 f2 f2 f2 00 00 00 00 00 00 00 ==================================================================