BUG: unable to handle kernel paging request at ffffeafff8e58020 IP: [] __read_once_size include/linux/compiler.h:243 [inline] IP: [] compound_head include/linux/page-flags.h:143 [inline] IP: [] PageMlocked include/linux/page-flags.h:327 [inline] IP: [] __split_huge_pmd+0x391/0x1870 mm/huge_memory.c:1773 PGD 0 [ 114.686832] Oops: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 9276 Comm: syz-executor5 Not tainted 4.9.122-g54068d6 #78 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801a1364800 task.stack: ffff8801a0950000 RIP: 0010:[] [] __read_once_size include/linux/compiler.h:243 [inline] RIP: 0010:[] [] compound_head include/linux/page-flags.h:143 [inline] RIP: 0010:[] [] PageMlocked include/linux/page-flags.h:327 [inline] RIP: 0010:[] [] __split_huge_pmd+0x391/0x1870 mm/huge_memory.c:1773 RSP: 0018:ffff8801a0957948 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffffeafff8e58000 RCX: ffffc90006f10000 RDX: 1ffffd5fff1cb004 RSI: ffffffff8154df6e RDI: ffffeafff8e58020 RBP: ffff8801a0957a78 R08: ffff8801a1365110 R09: 0000000000000001 R10: ffff8801a1364800 R11: 1ffff1003426ca1d R12: ffffea0000000000 R13: 0000000000000000 R14: ffff8801d7d189f0 R15: ffff8801c9946800 FS: 00007f70804af700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffeafff8e58020 CR3: 00000001d8145000 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff8153e677 ffffffff8153ec42 ffffffff8153a57e ffffffff814e075c ffffffff814e454a ffffffff855d3050 ffffffff814ecb7e 0000000000006511 ffff8801a1365108 ffff8801a13650b8 ffff8801a1365110 1ffff1003412af3e Call Trace: [] split_huge_pmd_address+0x1a9/0x1f0 mm/huge_memory.c:1800 [] vma_adjust_trans_huge+0x1ca/0x250 mm/huge_memory.c:1816 [] __vma_adjust+0x168/0x16c0 mm/mmap.c:777 [] vma_adjust include/linux/mm.h:1965 [inline] [] __split_vma.isra.40+0x3c0/0x670 mm/mmap.c:2621 [] split_vma+0x8a/0xc0 mm/mmap.c:2653 [] mprotect_fixup+0x6ca/0x930 mm/mprotect.c:365 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=28 sclass=netlink_tcpdiag_socket pig=9294 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=28 sclass=netlink_tcpdiag_socket pig=9295 comm=syz-executor6 [] do_mprotect_pkey+0x48e/0x890 mm/mprotect.c:509 [] SYSC_mprotect mm/mprotect.c:534 [inline] [] SyS_mprotect+0x2a/0x40 mm/mprotect.c:531 [] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282 [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: ff df 4c 21 e3 49 bc 00 00 00 00 00 ea ff ff 48 c1 eb 06 4c 01 e3 48 8d 7b 20 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 14 13 00 00 <4c> 8b 6b 20 49 89 dc 41 f6 c5 01 0f 85 ab 0a 00 00 e8 b9 2d e1 RIP [] __read_once_size include/linux/compiler.h:243 [inline] RIP [] compound_head include/linux/page-flags.h:143 [inline] RIP [] PageMlocked include/linux/page-flags.h:327 [inline] RIP [] __split_huge_pmd+0x391/0x1870 mm/huge_memory.c:1773 RSP CR2: ffffeafff8e58020 ---[ end trace 9e6d2d3eaed50de3 ]---