On Sat, Mar 6, 2021 at 8:37 AM syzbot
wrote:
>
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:d01b59c9 bpf: Add bpf_skb_adjust_room flag BPF_F_ADJ_ROOM_..
> git tree: bpf-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=1592bd66d0
> kernel config: https://syzkaller.appspot.com/x/.config?x=66df2ca4f2dd3022
> dashboard link: https://syzkaller.appspot.com/bug?extid=72d60f48cda58f46375a
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+72d60f48cda58f463...@syzkaller.appspotmail.com
#syz dup: upstream boot error: WARNING in kvm_wait
> [ cut here ]
> raw_local_irq_restore() called with IRQs enabled
> WARNING: CPU: 0 PID: 4813 at kernel/locking/irqflag-debug.c:10
> warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10
> Modules linked in:
> CPU: 0 PID: 4813 Comm: systemd-cryptse Not tainted 5.11.0-syzkaller #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
> Google 01/01/2011
> RIP: 0010:warn_bogus_irq_restore+0x1d/0x20 kernel/locking/irqflag-debug.c:10
> Code: bf ff cc cc cc cc cc cc cc cc cc cc cc 80 3d ca 72 b1 04 00 74 01 c3 48
> c7 c7 40 a2 6b 89 c6 05 b9 72 b1 04 01 e8 b8 37 bf ff <0f> 0b c3 48 39 77 10
> 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48
> RSP: 0018:c900012dfc40 EFLAGS: 00010282
> RAX: RBX: 8be287a0 RCX:
> RDX: 88802383 RSI: 815b6895 RDI: f5200025bf7a
> RBP: 0200 R08: R09: 0001
> R10: 815af76e R11: R12: 0003
> R13: fbfff17c50f4 R14: 0001 R15: 8880b9c35f40
> FS: () GS:8880b9c0() knlGS:
> CS: 0010 DS: ES: CR0: 80050033
> CR2: 7f1b759e04b0 CR3: 0bc8e000 CR4: 001506f0
> DR0: DR1: DR2:
> DR3: DR6: fffe0ff0 DR7: 0400
> Call Trace:
> kvm_wait arch/x86/kernel/kvm.c:860 [inline]
> kvm_wait+0xc9/0xe0 arch/x86/kernel/kvm.c:837
> pv_wait arch/x86/include/asm/paravirt.h:564 [inline]
> pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline]
> __pv_queued_spin_lock_slowpath+0x8b8/0xb40 kernel/locking/qspinlock.c:508
> pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:554 [inline]
> queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline]
> queued_spin_lock include/asm-generic/qspinlock.h:85 [inline]
> do_raw_spin_lock+0x200/0x2b0 kernel/locking/spinlock_debug.c:113
> spin_lock include/linux/spinlock.h:354 [inline]
> check_stack_usage kernel/exit.c:715 [inline]
> do_exit+0x1d6a/0x2ae0 kernel/exit.c:868
> do_group_exit+0x125/0x310 kernel/exit.c:922
> __do_sys_exit_group kernel/exit.c:933 [inline]
> __se_sys_exit_group kernel/exit.c:931 [inline]
> __x64_sys_exit_group+0x3a/0x50 kernel/exit.c:931
> do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
> entry_SYSCALL_64_after_hwframe+0x44/0xae
> RIP: 0033:0x7fed7b5d0618
> Code: Unable to access opcode bytes at RIP 0x7fed7b5d05ee.
> RSP: 002b:7fff094428a8 EFLAGS: 0246 ORIG_RAX: 00e7
> RAX: ffda RBX: RCX: 7fed7b5d0618
> RDX: RSI: 003c RDI:
> RBP: 7fed7b8ad8e0 R08: 00e7 R09: fee8
> R10: 7fed79a8b158 R11: 0246 R12: 7fed7b8ad8e0
> R13: 7fed7b8b2c20 R14: R15:
>
>
> ---
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