BUG: unable to handle page fault for address: ffff8880008e14d0 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD e201067 P4D e201067 PUD e202067 PMD 155063 PTE 8000000000000000 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 30261 Comm: syz-executor.3 Not tainted 5.9.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:mm_update_next_owner+0x4a1/0x7a0 kernel/exit.c:389 Code: 48 c1 e8 03 80 3c 18 00 0f 85 f7 02 00 00 48 8b ad 60 03 00 00 4c 8d 7d 10 4c 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 ce 02 00 00 <48> 8b 45 10 48 8d a8 68 fa ff ff 49 39 c7 75 47 e9 2d ff ff ff e8 RSP: 0018:ffffc90017947d38 EFLAGS: 00010246 RAX: 1ffff1100011c29a RBX: dffffc0000000000 RCX: ffffffff8147a8bf RDX: ffff8880166ea4c0 RSI: ffffffff8147a8cd RDI: ffff88804fa08778 RBP: ffff8880008e14c0 R08: 0000000000000001 R09: ffffffff89e09083 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809464c840 R13: ffff88804fa08040 R14: 0000000000000000 R15: ffff8880008e14d0 FS: 0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffff8880008e14d0 CR3: 0000000016522000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: exit_mm kernel/exit.c:482 [inline] do_exit+0xa83/0x29f0 kernel/exit.c:793 do_group_exit+0x125/0x310 kernel/exit.c:903 __do_sys_exit_group kernel/exit.c:914 [inline] __se_sys_exit_group kernel/exit.c:912 [inline] __ia32_sys_exit_group+0x3a/0x50 kernel/exit.c:912 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline] __do_fast_syscall_32+0x60/0x90 arch/x86/entry/common.c:137 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f15549 Code: Bad RIP value. RSP: 002b:00000000090afd7c EFLAGS: 00000202 ORIG_RAX: 00000000000000fc RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000003 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000805b7fb RBP: 00000000fffffff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: CR2: ffff8880008e14d0 ---[ end trace 79f2c27e7e825c12 ]--- RIP: 0010:mm_update_next_owner+0x4a1/0x7a0 kernel/exit.c:389 Code: 48 c1 e8 03 80 3c 18 00 0f 85 f7 02 00 00 48 8b ad 60 03 00 00 4c 8d 7d 10 4c 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 ce 02 00 00 <48> 8b 45 10 48 8d a8 68 fa ff ff 49 39 c7 75 47 e9 2d ff ff ff e8 RSP: 0018:ffffc90017947d38 EFLAGS: 00010246 RAX: 1ffff1100011c29a RBX: dffffc0000000000 RCX: ffffffff8147a8bf RDX: ffff8880166ea4c0 RSI: ffffffff8147a8cd RDI: ffff88804fa08778 RBP: ffff8880008e14c0 R08: 0000000000000001 R09: ffffffff89e09083 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88809464c840 R13: ffff88804fa08040 R14: 0000000000000000 R15: ffff8880008e14d0 FS: 0000000000000000(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: ffff8880008e14d0 CR3: 0000000016522000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400