BUG: unable to handle page fault for address: ffff888148fdc800
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 10201067 P4D 10201067 PUD 140711063 PMD 156063 PTE 8000000100000000
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3700 Comm: kworker/0:4 Not tainted 5.12.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:___slab_alloc+0xea/0x7a0 mm/slub.c:2737
Code: 8b 45 88 4c 8b 38 4d 85 ff 0f 84 80 00 00 00 48 8b 45 88 48 8b 40 10 80 78 2b 00 0f 89 2b 05 00 00 41 8b 44 24 28 48 8b 75 88 <49> 8b 04 07 48 83 46 08 08 48 89 06 48 8d 65 d0 4c 89 f8 5b 41 5a
RSP: 0018:ffffc9000346fac0 EFLAGS: 00010082
RAX: 0000000000000800 RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff888148fdc000 RSI: ffff8880b9c38b70 RDI: ffff888010442140
RBP: ffffc9000346fb70 R08: 0000000000000000 R09: ffff8881400009c3
R10: ffffed1028000138 R11: 0000000000084087 R12: ffff888010442140
R13: 0000000000082a20 R14: ffffea000523f600 R15: ffff888148fdc000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888148fdc800 CR3: 000000003ecf4000 CR4: 0000000000350ef0
Call Trace:
 __slab_alloc.constprop.0+0xa7/0xf0 mm/slub.c:2790
 slab_alloc_node mm/slub.c:2871 [inline]
 __kmalloc_node_track_caller+0x2c0/0x320 mm/slub.c:4592
 kmalloc_reserve net/core/skbuff.c:353 [inline]
 __alloc_skb+0xde/0x340 net/core/skbuff.c:424
 alloc_skb include/linux/skbuff.h:1103 [inline]
 nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:513 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:570 [inline]
 nsim_dev_trap_report_work+0x2ac/0xbd0 drivers/net/netdevsim/dev.c:611
 process_one_work+0x98d/0x1600 kernel/workqueue.c:2275
 worker_thread+0x64c/0x1120 kernel/workqueue.c:2421
 kthread+0x3b1/0x4a0 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
Modules linked in:
CR2: ffff888148fdc800
---[ end trace 31a0038f59842f0e ]---
RIP: 0010:___slab_alloc+0xea/0x7a0 mm/slub.c:2737
Code: 8b 45 88 4c 8b 38 4d 85 ff 0f 84 80 00 00 00 48 8b 45 88 48 8b 40 10 80 78 2b 00 0f 89 2b 05 00 00 41 8b 44 24 28 48 8b 75 88 <49> 8b 04 07 48 83 46 08 08 48 89 06 48 8d 65 d0 4c 89 f8 5b 41 5a
RSP: 0018:ffffc9000346fac0 EFLAGS: 00010082
RAX: 0000000000000800 RBX: 0000000000000002 RCX: 0000000000000000
RDX: ffff888148fdc000 RSI: ffff8880b9c38b70 RDI: ffff888010442140
RBP: ffffc9000346fb70 R08: 0000000000000000 R09: ffff8881400009c3
R10: ffffed1028000138 R11: 0000000000084087 R12: ffff888010442140
R13: 0000000000082a20 R14: ffffea000523f600 R15: ffff888148fdc000
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888148fdc800 CR3: 000000003ecf4000 CR4: 0000000000350ef0