attempt to access beyond end of device loop5: rw=12288, want=12296, limit=20 F2FS-fs (loop5): Failed to get valid F2FS checkpoint kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 2976 Comm: syz-executor.2 Not tainted 4.19.124-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline] RIP: 0010:mm_update_next_owner+0x3c6/0x650 kernel/exit.c:452 Code: 48 8d bd 30 03 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 52 02 00 00 48 8b ad 30 03 00 00 4c 8d 6d 10 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 29 02 00 00 48 8b 45 10 48 8d a8 70 fa ff ff 49 RSP: 0018:ffff88820b037d40 EFLAGS: 00010202 RAX: 0000000000000002 RBX: dffffc0000000000 RCX: ffffffff813d9f4e RDX: 0000000000000000 RSI: ffffffff813d9f5c RDI: ffff888000780c00 RBP: 0000000000000000 R08: ffff888058fdc680 R09: fffffbfff1141219 R10: fffffbfff1141218 R11: ffffffff88a090c3 R12: ffff88808bd351c0 R13: 0000000000000010 R14: ffff888058fdc680 R15: ffff8880a8a7f840 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557f54f49378 CR3: 0000000211189000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: exit_mm kernel/exit.c:545 [inline] do_exit+0xabc/0x2f00 kernel/exit.c:867 do_group_exit+0x125/0x310 kernel/exit.c:983 __do_sys_exit_group kernel/exit.c:994 [inline] __se_sys_exit_group kernel/exit.c:992 [inline] __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:992 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45ca29 Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe0e341948 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 000000000045ca29 RDX: 0000000000416621 RSI: fffffffffffffff7 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007ffe0e3419a0 R10: 0000000000790740 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffe0e3419a0 R14: 0000000000000000 R15: 00007ffe0e3419b0 Modules linked in: ---[ end trace eab7f8aa343f75c1 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:193 [inline] RIP: 0010:mm_update_next_owner+0x3c6/0x650 kernel/exit.c:452 Code: 48 8d bd 30 03 00 00 48 89 f8 48 c1 e8 03 80 3c 18 00 0f 85 52 02 00 00 48 8b ad 30 03 00 00 4c 8d 6d 10 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 29 02 00 00 48 8b 45 10 48 8d a8 70 fa ff ff 49 RSP: 0018:ffff88820b037d40 EFLAGS: 00010202 RAX: 0000000000000002 RBX: dffffc0000000000 RCX: ffffffff813d9f4e RDX: 0000000000000000 RSI: ffffffff813d9f5c RDI: ffff888000780c00 RBP: 0000000000000000 R08: ffff888058fdc680 R09: fffffbfff1141219 R10: fffffbfff1141218 R11: ffffffff88a090c3 R12: ffff88808bd351c0 R13: 0000000000000010 R14: ffff888058fdc680 R15: ffff8880a8a7f840 FS: 0000000000000000(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557f54f49378 CR3: 0000000211189000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400