Messages in this thread | | | Date | Wed, 10 Mar 2021 09:46:21 -0800 | Subject | [syzbot] WARNING in do_user_addr_fault | From | syzbot <> |
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Hello,
syzbot found the following issue on:
HEAD commit: 05a59d79 Merge git://git.kernel.org:/pub/scm/linux/kernel/.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=107f822ad00000 kernel config: https://syzkaller.appspot.com/x/.config?x=750735fdbc630971 dashboard link: https://syzkaller.appspot.com/bug?extid=beb50656d2e0b1940264
Unfortunately, I don't have any reproducer for this issue yet.
IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+beb50656d2e0b1940264@syzkaller.appspotmail.com
------------[ cut here ]------------ raw_local_irq_restore() called with IRQs enabled WARNING: CPU: 0 PID: 8407 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: 8407 Comm: syz-fuzzer Not tainted 5.12.0-rc2-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: be ff cc cc cc cc cc cc cc cc cc cc cc 80 3d 11 d1 ad 04 00 74 01 c3 48 c7 c7 20 79 6b 89 c6 05 00 d1 ad 04 01 e8 75 5b be ff <0f> 0b c3 48 39 77 10 0f 84 97 00 00 00 66 f7 47 22 f0 ff 74 4b 48 RSP: 0000:ffffc900010b7ab0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888032907120 RCX: 0000000000000000 RDX: ffff888013bde340 RSI: ffffffff815b4435 RDI: fffff52000216f48 RBP: 0000000000000200 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815ad19e R11: 0000000000000000 R12: 0000000000000003 R13: ffffed1006520e24 R14: 0000000000000001 R15: ffff8880b9c36000 CR2: 000000c0002de000 CR3: 000000001a614000 CR4: 00000000001506f0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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 do_user_addr_fault+0x483/0x1210 arch/x86/mm/fault.c:1390 RIP: 0033:0x46cf33 Code: 00 48 81 eb 00 01 00 00 48 81 c7 00 01 00 00 48 81 fb 00 01 00 00 73 82 e9 07 ff ff ff c5 fd ef c0 48 81 fb 00 00 00 02 73 46 <c5> fe 7f 07 c5 fe 7f 47 20 c5 fe 7f 47 40 c5 fe 7f 47 60 48 81 eb RSP: 002b:000000c0000c35f0 EFLAGS: 00010287 RAX: 0000000000000000 RBX: 00000000000001a0 RCX: 00000000000001a0 RDX: 00000000000001a0 RSI: 0000000000000000 RDI: 000000c0002de000 R10: 00007ff0c6f30b00 R11: 0000000000000000 R12: 0000000000000040
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