EXT4-fs warning (device sda1): ext4_group_add:1636: No reserved GDT blocks, can't resize EXT4-fs warning (device sda1): ext4_group_add:1636: No reserved GDT blocks, can't resize ================================================================== kasan: CONFIG_KASAN_INLINE enabled BUG: KASAN: stack-out-of-bounds in zap_pte_range mm/memory.c:1299 [inline] BUG: KASAN: stack-out-of-bounds in zap_pmd_range mm/memory.c:1437 [inline] BUG: KASAN: stack-out-of-bounds in zap_pud_range mm/memory.c:1466 [inline] BUG: KASAN: stack-out-of-bounds in zap_p4d_range mm/memory.c:1487 [inline] BUG: KASAN: stack-out-of-bounds in unmap_page_range+0x1da1/0x2220 mm/memory.c:1508 kasan: GPF could be caused by NULL-ptr deref or user memory access Read of size 8 at addr ffff88019c1cd000 by task syz-executor0/9034 general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 0 Comm: Not tainted 4.18.0-rc3+ #48 CPU: 0 PID: 9034 Comm: syz-executor0 Not tainted 4.18.0-rc3+ #48 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline] RIP: 0010:get_running_cputimer include/linux/sched/cputime.h:85 [inline] RIP: 0010:account_group_system_time include/linux/sched/cputime.h:149 [inline] RIP: 0010:account_system_index_time+0xef/0x5c0 kernel/sched/cputime.c:168 Call Trace: Code: ad 04 00 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 00 48 8b 83 b8 06 00 print_address_description+0x6c/0x20b mm/kasan/report.c:256 00 48 ba kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 00 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 00 00 zap_pte_range mm/memory.c:1299 [inline] zap_pmd_range mm/memory.c:1437 [inline] zap_pud_range mm/memory.c:1466 [inline] zap_p4d_range mm/memory.c:1487 [inline] unmap_page_range+0x1da1/0x2220 mm/memory.c:1508 00 00 fc ff df 48 8d b8 38 01 00 00 48 8d 88 20 01 00 00 48 89 fe 48 c1 ee 03 <0f> b6 14 16 48 89 fe 83 e6 07 40 38 f2 7f 08 84 d2 0f 85 f9 unmap_single_vma+0x1a0/0x310 mm/memory.c:1553 03 00 unmap_vmas+0x120/0x1f0 mm/memory.c:1583 exit_mmap+0x2c2/0x5b0 mm/mmap.c:3105 RSP: 0018:ffff8801daf07988 EFLAGS: 00010007 RAX: 1ffff1003371cdd7 RBX: ffff88019b8e6780 RCX: 1ffff1003371cef7 RDX: dffffc0000000000 RSI: 03fffe20066e39e1 RDI: 1ffff1003371cf0f __mmput kernel/fork.c:970 [inline] mmput+0x265/0x620 kernel/fork.c:991 RBP: ffff8801daf07a68 R08: ffff88019b8e6780 R09: fffffbfff11f424c R10: fffffbfff11c1b45 R11: ffffffff88fa1263 R12: 00000000000f4240 R13: 00000000000f4240 R14: 1ffff1003b5e0f34 R15: ffff8801daf07a40 FS: 00007f31209e1700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f84b16ebdb8 CR3: 00000001a2089000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: exit_mm kernel/exit.c:544 [inline] do_exit+0xea9/0x2750 kernel/exit.c:852 account_system_time+0x7f/0xb0 kernel/sched/cputime.c:199 account_process_tick+0x76/0x240 kernel/sched/cputime.c:498 update_process_times+0x21/0x70 kernel/time/timer.c:1634 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:164 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0x3eb/0x10c0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x2f3/0x750 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1025 [inline] smp_apic_timer_interrupt+0x165/0x730 arch/x86/kernel/apic/apic.c:1050 do_group_exit+0x177/0x440 kernel/exit.c:968 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 Modules linked in: get_signal+0x88e/0x1970 kernel/signal.c:2468 Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 21147a2a3ba0a8b7 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:188 [inline] RIP: 0010:get_running_cputimer include/linux/sched/cputime.h:85 [inline] RIP: 0010:account_group_system_time include/linux/sched/cputime.h:149 [inline] RIP: 0010:account_system_index_time+0xef/0x5c0 kernel/sched/cputime.c:168 Code: ad 04 00 do_signal+0x9c/0x21c0 arch/x86/kernel/signal.c:816 00 48 8b 83 b8 06 00 00 48 ba 00 exit_to_usermode_loop+0x2e0/0x370 arch/x86/entry/common.c:162 00 00 00 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 00 fc ff df 48 8d b8 38 01 00 00 48 8d entry_SYSCALL_64_after_hwframe+0x49/0xbe 88 RIP: 0033:0x455ba9 20 01 Code: 00 00 1d 48 89 ba fe 48 fb c1 ff c3 ee 03 66 2e <0f> 0f 1f b6 84 00 14 00 16 48 00 89 fe 00 83 00 e6 66 07 90 40 38 48 f2 89 f8 7f 08 48 84 d2 89 f7 0f 85 48 f9 89 03 d6 48 00 89 ca RSP: 0018:ffff8801daf07988 EFLAGS: 00010007 4d 89 c2 RAX: 1ffff1003371cdd7 RBX: ffff88019b8e6780 RCX: 1ffff1003371cef7 4d RDX: dffffc0000000000 RSI: 03fffe20066e39e1 RDI: 1ffff1003371cf0f 89 RBP: ffff8801daf07a68 R08: ffff88019b8e6780 R09: fffffbfff11f424c c8 R10: fffffbfff11c1b45 R11: ffffffff88fa1263 R12: 00000000000f4240 4c 8b R13: 00000000000f4240 R14: 1ffff1003b5e0f34 R15: ffff8801daf07a40 4c FS: 00007f31209e1700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 24 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f84b16ebdb8 CR3: 00000001a2089000 CR4: 00000000001406e0 08 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 0f DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 05 <48>