__blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x95f/0x1850 block/ioctl.c:594 block_ioctl+0xde/0x120 fs/block_dev.c:1881 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 BUG: unable to handle kernel NULL pointer dereference at 0000000000000120 IP: set_bit arch/x86/include/asm/bitops.h:81 [inline] IP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] IP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 PGD a82be067 P4D a82be067 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 PUD 9b8ff067 PMD 0 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x44a7c9 Oops: 0002 [#1] PREEMPT SMP KASAN RSP: 002b:00007f406a60dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Modules linked in: RAX: ffffffffffffffda RBX: 00007f406a60dcc0 RCX: 000000000044a7c9 CPU: 1 PID: 7370 Comm: syz-executor641 Not tainted 4.14.168-syzkaller #0 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000039 task: ffff8880a7b866c0 task.stack: ffff888092d38000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c RIP: 0010:set_bit arch/x86/include/asm/bitops.h:81 [inline] RIP: 0010:cpumask_set_cpu include/linux/cpumask.h:283 [inline] RIP: 0010:blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 R13: 00007ffeba1d255f R14: 00007f406a60e9c0 R15: 0000000000000000 RSP: 0018:ffff888092d3fa48 EFLAGS: 00010297 RAX: ffff8880a7b866c0 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880a41eb440 RDI: ffff8880a41eb448 RBP: ffff888092d3fac0 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffff888092d3f8e0 R12: 0000000000000001 R13: ffff8880a41f7580 R14: dffffc0000000000 R15: ffff8880a4372440 FS: 00007f406a60e700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000120 CR3: 00000000a8e0d000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_queue_reinit block/blk-mq.c:2512 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:2746 [inline] blk_mq_update_nr_hw_queues+0x21c/0x3a0 block/blk-mq.c:2756 nbd_start_device+0x1d7/0xc50 drivers/block/nbd.c:1187 nbd_start_device_ioctl drivers/block/nbd.c:1228 [inline] __nbd_ioctl drivers/block/nbd.c:1310 [inline] nbd_ioctl+0x43d/0xb30 drivers/block/nbd.c:1350 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x95f/0x1850 block/ioctl.c:594 block_ioctl+0xde/0x120 fs/block_dev.c:1881 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x44a7c9 RSP: 002b:00007f406a60dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f406a60dcc0 RCX: 000000000044a7c9 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005 RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000039 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c R13: 00007ffeba1d255f R14: 00007f406a60e9c0 R15: 0000000000000000 Code: ea 03 42 80 3c 32 00 0f 85 94 06 00 00 41 83 fc 3f 48 8b 17 0f 87 4b 04 00 00 48 89 55 c8 48 89 45 d0 e8 26 59 5d fe 48 8b 55 c8 48 0f ab 9a 20 01 00 00 48 8d ba 78 01 00 00 48 8b 45 d0 48 RIP: set_bit arch/x86/include/asm/bitops.h:81 [inline] RSP: ffff888092d3fa48 RIP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] RSP: ffff888092d3fa48 RIP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 RSP: ffff888092d3fa48 CR2: 0000000000000120 BUG: unable to handle kernel NULL pointer dereference at 0000000000000120 CPU: 1 PID: 7378 Comm: syz-executor641 Tainted: G D 4.14.168-syzkaller #0 IP: set_bit arch/x86/include/asm/bitops.h:81 [inline] IP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] IP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 PGD a039e067 Call Trace: P4D a039e067 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 PUD 9738b067 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10f/0x159 lib/fault-inject.c:149 PMD 0 should_failslab+0xdb/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc_node mm/slab.c:3297 [inline] kmem_cache_alloc_node_trace+0x280/0x770 mm/slab.c:3659 Oops: 0002 [#2] PREEMPT SMP KASAN Modules linked in: __do_kmalloc_node mm/slab.c:3681 [inline] __kmalloc_node+0x3d/0x80 mm/slab.c:3689 CPU: 0 PID: 7369 Comm: syz-executor641 Tainted: G D 4.14.168-syzkaller #0 kmalloc_node include/linux/slab.h:530 [inline] kzalloc_node include/linux/slab.h:672 [inline] blk_mq_realloc_hw_ctxs+0x1bf/0xe80 block/blk-mq.c:2364 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 __blk_mq_update_nr_hw_queues block/blk-mq.c:2745 [inline] blk_mq_update_nr_hw_queues+0x1c9/0x3a0 block/blk-mq.c:2756 task: ffff88807f0cc080 task.stack: ffff88808fa60000 nbd_start_device+0x1d7/0xc50 drivers/block/nbd.c:1187 RIP: 0010:set_bit arch/x86/include/asm/bitops.h:81 [inline] RIP: 0010:cpumask_set_cpu include/linux/cpumask.h:283 [inline] RIP: 0010:blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 nbd_start_device_ioctl drivers/block/nbd.c:1228 [inline] __nbd_ioctl drivers/block/nbd.c:1310 [inline] nbd_ioctl+0x43d/0xb30 drivers/block/nbd.c:1350 RSP: 0018:ffff88808fa67a48 EFLAGS: 00010297 RAX: ffff88807f0cc080 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880a43d2d00 RDI: ffff8880a43d2d08 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x95f/0x1850 block/ioctl.c:594 RBP: ffff88808fa67ac0 R08: 0000000000000000 R09: 0000000000000001 R10: dffffc0000000000 R11: ffff88808fa678e0 R12: 0000000000000001 R13: ffff8880a43cd840 R14: dffffc0000000000 R15: ffff8880a3c24480 block_ioctl+0xde/0x120 fs/block_dev.c:1881 FS: 00007f406a60e700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 CR2: 0000000000000120 CR3: 000000008e249000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_queue_reinit block/blk-mq.c:2512 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:2746 [inline] blk_mq_update_nr_hw_queues+0x21c/0x3a0 block/blk-mq.c:2756 nbd_start_device+0x1d7/0xc50 drivers/block/nbd.c:1187 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 nbd_start_device_ioctl drivers/block/nbd.c:1228 [inline] __nbd_ioctl drivers/block/nbd.c:1310 [inline] nbd_ioctl+0x43d/0xb30 drivers/block/nbd.c:1350 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x95f/0x1850 block/ioctl.c:594 RIP: 0033:0x44a7c9 RSP: 002b:00007f406a60dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f406a60dcc0 RCX: 000000000044a7c9 block_ioctl+0xde/0x120 fs/block_dev.c:1881 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005 RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000039 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c R13: 00007ffeba1d255f R14: 00007f406a60e9c0 R15: 0000000000000000 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x44a7c9 RSP: 002b:00007f406a60dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f406a60dcc0 RCX: 000000000044a7c9 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005 RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000039 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c R13: 00007ffeba1d255f R14: 00007f406a60e9c0 R15: 0000000000000000 Code: ea 03 42 80 3c 32 00 0f 85 94 06 00 00 41 83 fc 3f 48 8b 17 0f 87 4b 04 00 00 48 89 55 c8 48 89 45 d0 e8 26 59 5d fe 48 8b 55 c8 48 0f ab 9a 20 01 00 00 48 8d ba 78 01 00 00 48 8b 45 d0 48 RIP: set_bit arch/x86/include/asm/bitops.h:81 [inline] RSP: ffff88808fa67a48 RIP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] RSP: ffff88808fa67a48 RIP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 RSP: ffff88808fa67a48 CR2: 0000000000000120 BUG: unable to handle kernel NULL pointer dereference at 0000000000000120 IP: set_bit arch/x86/include/asm/bitops.h:81 [inline] IP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] IP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 PGD 8d3e4067 P4D 8d3e4067 PUD 8c541067 PMD 0 Oops: 0002 [#3] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7387 Comm: syz-executor641 Tainted: G D 4.14.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88808da5e180 task.stack: ffff8880a50d8000 RIP: 0010:set_bit arch/x86/include/asm/bitops.h:81 [inline] RIP: 0010:cpumask_set_cpu include/linux/cpumask.h:283 [inline] RIP: 0010:blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 RSP: 0018:ffff8880a50dfa48 EFLAGS: 00010297 RAX: ffff88808da5e180 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880a43d2480 RDI: ffff8880a43d2488 RBP: ffff8880a50dfac0 R08: 0000000000000000 R09: 0000000000000001 R10: dffffc0000000000 R11: ffff8880a50df8e0 R12: 0000000000000001 R13: ffff888218feea00 R14: dffffc0000000000 R15: ffff8880a3cc64c0 FS: 00007f406a60e700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000120 CR3: 00000000a8e14000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_queue_reinit block/blk-mq.c:2512 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:2746 [inline] blk_mq_update_nr_hw_queues+0x21c/0x3a0 block/blk-mq.c:2756 nbd_start_device+0x1d7/0xc50 drivers/block/nbd.c:1187 nbd_start_device_ioctl drivers/block/nbd.c:1228 [inline] __nbd_ioctl drivers/block/nbd.c:1310 [inline] nbd_ioctl+0x43d/0xb30 drivers/block/nbd.c:1350 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x95f/0x1850 block/ioctl.c:594 block_ioctl+0xde/0x120 fs/block_dev.c:1881 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x44a7c9 RSP: 002b:00007f406a60dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f406a60dcc0 RCX: 000000000044a7c9 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005 RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000039 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c R13: 00007ffeba1d255f R14: 00007f406a60e9c0 R15: 0000000000000000 Code: ea 03 42 80 3c 32 00 0f 85 94 06 00 00 41 83 fc 3f 48 8b 17 0f 87 4b 04 00 00 48 89 55 c8 48 89 45 d0 e8 26 59 5d fe 48 8b 55 c8 48 0f ab 9a 20 01 00 00 48 8d ba 78 01 00 00 48 8b 45 d0 48 RIP: set_bit arch/x86/include/asm/bitops.h:81 [inline] RSP: ffff8880a50dfa48 RIP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] RSP: ffff8880a50dfa48 RIP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 RSP: ffff8880a50dfa48 CR2: 0000000000000120 BUG: unable to handle kernel NULL pointer dereference at 0000000000000120 IP: set_bit arch/x86/include/asm/bitops.h:81 [inline] IP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] IP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 PGD a836e067 P4D a836e067 PUD 99571067 PMD 0 Oops: 0002 [#4] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 7384 Comm: syz-executor641 Tainted: G D 4.14.168-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809b3700c0 task.stack: ffff888081e78000 RIP: 0010:set_bit arch/x86/include/asm/bitops.h:81 [inline] RIP: 0010:cpumask_set_cpu include/linux/cpumask.h:283 [inline] RIP: 0010:blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 RSP: 0018:ffff888081e7fa48 EFLAGS: 00010297 RAX: ffff88809b3700c0 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff8880a41eb000 RDI: ffff8880a41eb008 RBP: ffff888081e7fac0 R08: 0000000000000000 R09: 0000000000000001 R10: dffffc0000000000 R11: ffff888081e7f8e0 R12: 0000000000000001 R13: ffff888218fee500 R14: dffffc0000000000 R15: ffff8880a3c24ff0 FS: 00007f406a60e700(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000120 CR3: 0000000098855000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: blk_mq_queue_reinit block/blk-mq.c:2512 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:2746 [inline] blk_mq_update_nr_hw_queues+0x21c/0x3a0 block/blk-mq.c:2756 nbd_start_device+0x1d7/0xc50 drivers/block/nbd.c:1187 nbd_start_device_ioctl drivers/block/nbd.c:1228 [inline] __nbd_ioctl drivers/block/nbd.c:1310 [inline] nbd_ioctl+0x43d/0xb30 drivers/block/nbd.c:1350 __blkdev_driver_ioctl block/ioctl.c:297 [inline] blkdev_ioctl+0x95f/0x1850 block/ioctl.c:594 block_ioctl+0xde/0x120 fs/block_dev.c:1881 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x44a7c9 RSP: 002b:00007f406a60dcb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f406a60dcc0 RCX: 000000000044a7c9 RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000005 RBP: 0000000000000008 R08: 0000000000000001 R09: 0000000000000039 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc6c R13: 00007ffeba1d255f R14: 00007f406a60e9c0 R15: 0000000000000000 Code: ea 03 42 80 3c 32 00 0f 85 94 06 00 00 41 83 fc 3f 48 8b 17 0f 87 4b 04 00 00 48 89 55 c8 48 89 45 d0 e8 26 59 5d fe 48 8b 55 c8 48 0f ab 9a 20 01 00 00 48 8d ba 78 01 00 00 48 8b 45 d0 48 RIP: set_bit arch/x86/include/asm/bitops.h:81 [inline] RSP: ffff888081e7fa48 RIP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] RSP: ffff888081e7fa48 RIP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 RSP: ffff888081e7fa48 CR2: 0000000000000120 BUG: unable to handle kernel NULL pointer dereference at 0000000000000120 ---[ end trace 052934a9dbd92cde ]--- IP: set_bit arch/x86/include/asm/bitops.h:81 [inline] IP: cpumask_set_cpu include/linux/cpumask.h:283 [inline] IP: blk_mq_map_swqueue+0x25e/0x9c0 block/blk-mq.c:2171 PGD 9337d067 P4D 9337d067 PUD a9883067 PMD 0 Oops: 0002 [#5] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 7378 Comm: syz-executor641 Tainted: G D 4.14.168-syzkaller #0