================================================================== BUG: KASAN: stack-out-of-bounds in unmap_vmas+0x1ab/0x1f0 mm/memory.c:1582 Read of size 8 at addr ffff8801ae157988 by task udevd/5889 BUG: unable to handle kernel paging request at ffff8801cba9b540 CPU: 0 PID: 5889 Comm: udevd Not tainted 4.18.0-rc3+ #48 PGD b4e1067 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: P4D b4e1067 __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 PUD 1d9bb3063 PMD 1acb52063 PTE ffff8801acb525f8 Oops: 0002 [#1] SMP KASAN print_address_description+0x6c/0x20b mm/kasan/report.c:256 CPU: 1 PID: 5885 Comm: syz-executor6 Not tainted 4.18.0-rc3+ #48 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_atomic64_add arch/x86/include/asm/atomic64_64.h:46 [inline] RIP: 0010:atomic64_add include/asm-generic/atomic-instrumented.h:133 [inline] RIP: 0010:atomic_long_add include/asm-generic/atomic-long.h:198 [inline] RIP: 0010:update_tg_load_avg kernel/sched/fair.c:3400 [inline] RIP: 0010:update_blocked_averages+0xb7b/0x1770 kernel/sched/fair.c:7665 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 Code: 89 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 fe 48 unmap_vmas+0x1ab/0x1f0 mm/memory.c:1582 31 exit_mmap+0x2c2/0x5b0 mm/mmap.c:3105 c6 48 __mmput kernel/fork.c:970 [inline] mmput+0x265/0x620 kernel/fork.c:991 29 fe 48 39 d6 0f 86 c8 f8 ff exec_mmap fs/exec.c:1044 [inline] flush_old_exec+0xbaf/0x2100 fs/exec.c:1276 ff 49 8d bc 24 80 01 00 00 be 08 00 00 00 e8 0c db 62 00 48 load_elf_binary+0xa33/0x5610 fs/binfmt_elf.c:869 8b 85 f8 fc search_binary_handler+0x17d/0x570 fs/exec.c:1653 ff exec_binprm fs/exec.c:1695 [inline] __do_execve_file.isra.36+0x171d/0x2730 fs/exec.c:1819 ff 49 01 84 24 80 01 00 00 48 8b 85 30 fd ff ff 4c 8b 85 f0 fc do_execveat_common fs/exec.c:1866 [inline] do_execve fs/exec.c:1883 [inline] __do_sys_execve fs/exec.c:1964 [inline] __se_sys_execve fs/exec.c:1959 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1959 ff do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 RSP: 0018:ffff8801daf07838 EFLAGS: 00010046 RAX: 00000000000001a9 RBX: ffff8801daf07b60 RCX: ffffffff8156f9b4 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8801cba9b540 RBP: ffff8801daf07b88 R08: ffffed00397536a9 R09: ffffed00397536a8 R10: ffffed00397536a8 R11: ffff8801cba9b547 R12: ffff8801cba9b3c0 R13: ffff8801ab3a9d00 R14: ffff8801d8482a00 R15: dffffc0000000000 FS: 00007fb6f6255700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8801cba9b540 CR3: 000000019ea34000 CR4: 00000000001406e0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 entry_SYSCALL_64_after_hwframe+0x49/0xbe DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: RIP: 0033:0x7ff16ecce207 Code: Bad RIP value. RSP: 002b:00007ffcba7d85a8 EFLAGS: 00000202 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007ff16ecce207 RDX: 00000000007d6630 RSI: 00007ffcba7d86a0 RDI: 00007ffcba7d96b0 RBP: 0000000000625500 R08: 0000000000005ed7 R09: 0000000000005ed7 R10: 0000000000000000 R11: 0000000000000202 R12: 00000000007d6630 R13: 0000000000000007 R14: 00000000007cf250 R15: 0000000000000005 Allocated by task 901951312: run_rebalance_domains+0x350/0x4c0 kernel/sched/fair.c:9883 __do_softirq+0x2e8/0xb17 kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x1d1/0x200 kernel/softirq.c:408 exiting_irq arch/x86/include/asm/apic.h:527 [inline] smp_apic_timer_interrupt+0x186/0x730 arch/x86/kernel/apic/apic.c:1052 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) CR2: ffff8801cba9b540 ---[ end trace 6bf89fb6f5cb894f ]--- BUG: unable to handle kernel paging request at ffffffff8c42b160 RIP: 0010:arch_atomic64_add arch/x86/include/asm/atomic64_64.h:46 [inline] RIP: 0010:atomic64_add include/asm-generic/atomic-instrumented.h:133 [inline] RIP: 0010:atomic_long_add include/asm-generic/atomic-long.h:198 [inline] RIP: 0010:update_tg_load_avg kernel/sched/fair.c:3400 [inline] RIP: 0010:update_blocked_averages+0xb7b/0x1770 kernel/sched/fair.c:7665 PGD 8e6d067 Code: P4D 8e6d067 89 PUD 8e6e063 fe PMD 0 48 31 c6 48 Oops: 0000 [#2] SMP KASAN 29 CPU: 0 PID: 5889 Comm: udevd Tainted: G D 4.18.0-rc3+ #48 fe Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 48 39 RIP: 0010:depot_fetch_stack+0x10/0x30 lib/stackdepot.c:201 d6 0f Code: 86 c8 e8 f8 ff c5 2e ff 49 47 fe 8d bc e9 b3 24 80 fd ff 01 ff e8 00 bb 2e 00 be 47 08 00 fe 00 e9 55 00 fd ff e8 ff 90 0c 90 90 db 62 90 90 00 48 90 89 8b 85 f8 c1 f8 ef 11 fc ff 25 ff ff ff 1f 49 00 81 01 84 e7 f0 24 3f 00 80 01 00 <48> 00 03 3c 00 48 c5 60 8b 85 29 30 fd 43 8b ff 8b 47 ff 4c 0c 8b 48 83 85 f0 c7 fc ff 18 RSP: 0018:ffff8801daf07838 EFLAGS: 00010046 c7 46 RAX: 00000000000001a9 RBX: ffff8801daf07b60 RCX: ffffffff8156f9b4 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8801cba9b540 10 RBP: ffff8801daf07b88 R08: ffffed00397536a9 R09: ffffed00397536a8 00 00 R10: ffffed00397536a8 R11: ffff8801cba9b547 R12: ffff8801cba9b3c0 R13: ffff8801ab3a9d00 R14: ffff8801d8482a00 R15: dffffc0000000000 00 00 FS: 00007fb6f6255700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff8801cba9b540 CR3: 000000019ea34000 CR4: 00000000001406e0 RSP: 0018:ffff88019a75f250 EFLAGS: 00010006 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 RAX: 00000000001ff100 RBX: ffff8801ae157a54 RCX: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600