sd 0:0:1:0: [sg0] tag#5163 CDB[90]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#5163 CDB[a0]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#5163 CDB[b0]: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
sd 0:0:1:0: [sg0] tag#5163 CDB[c0]: 00 00 00 00 00 00 00 00
=====================================================
BUG: KMSAN: uninit-value in update_stack_state+0x1ee/0xb40 arch/x86/kernel/unwind_frame.c:202
CPU: 0 PID: 27916 Comm: kworker/0:2 Not tainted 5.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events nsim_dev_trap_report_work
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x21c/0x280 lib/dump_stack.c:118
 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:121
 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:215
 update_stack_state+0x1ee/0xb40 arch/x86/kernel/unwind_frame.c:202
 unwind_next_frame+0x8c6/0xed0 arch/x86/kernel/unwind_frame.c:305
 arch_stack_walk+0x338/0x3d0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x117/0x1a0 kernel/stacktrace.c:123
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:144 [inline]
 kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:310
 kmsan_memcpy_memmove_metadata+0x272/0x2e0 mm/kmsan/kmsan.c:247
 kmsan_memcpy_metadata+0xb/0x10 mm/kmsan/kmsan.c:267
 __msan_memcpy+0x43/0x50 mm/kmsan/kmsan_instr.c:116
 pskb_expand_head+0x3fd/0x1e30 net/core/skbuff.c:1636
 __skb_pad+0x641/0x9d0 net/core/skbuff.c:1804
 __skb_put_padto include/linux/skbuff.h:3218 [inline]
 skb_put_padto include/linux/skbuff.h:3237 [inline]
 send_hsr_supervision_frame+0x129c/0x15b0 net/hsr/hsr_device.c:299
 hsr_announce+0x21f/0x3c0 net/hsr/hsr_device.c:330
 call_timer_fn+0x226/0x550 kernel/time/timer.c:1404
 expire_timers+0x4fc/0x780 kernel/time/timer.c:1449
 __run_timers+0xaf4/0xd30 kernel/time/timer.c:1773
 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1786
 __do_softirq+0x2ea/0x7f5 kernel/softirq.c:293
 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711
 </IRQ>
 __run_on_irqstack arch/x86/include/asm/irq_stack.h:23 [inline]
 run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:50 [inline]
 do_softirq_own_stack+0x7c/0xa0 arch/x86/kernel/irq_64.c:77
 invoke_softirq kernel/softirq.c:390 [inline]
 __irq_exit_rcu+0x226/0x270 kernel/softirq.c:420
 irq_exit_rcu+0xe/0x10 kernel/softirq.c:432
 sysvec_call_function_single+0x107/0x130 arch/x86/kernel/smp.c:243
 asm_sysvec_call_function_single+0x12/0x20 arch/x86/include/asm/idtentry.h:601
RIP: 0010:pfn_valid include/linux/mmzone.h:1213 [inline]
RIP: 0010:kmsan_virt_addr_valid mm/kmsan/kmsan_shadow.c:91 [inline]
RIP: 0010:virt_to_page_or_null+0x5b/0xf0 mm/kmsan/kmsan_shadow.c:129
Code: 48 85 f6 75 44 48 89 d1 48 c1 e9 2e 75 3b 48 8b 0d 9a 18 c8 10 48 85 c9 74 2f 48 89 d6 48 c1 ee 22 4c 8b 0c f1 4d 85 c9 74 1f <48> 89 d6 48 c1 ee 1b 83 e6 7f 48 c1 e6 05 4c 89 c9 48 01 f1 74 09
RSP: 0018:ffff888199497ae0 EFLAGS: 00000286
RAX: ffff8880e63c7768 RBX: ffff8880663c7768 RCX: ffff88821fff0000
RDX: 00000000663c7768 RSI: 0000000000000000 RDI: ffff8880663c7768
RBP: ffff888199497ae0 R08: ffffea000000000f R09: ffff88812fffa000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff88811a3c2858
R13: ffff88811a3c2858 R14: 0000000000000001 R15: 0000000000000000
 kmsan_get_metadata+0x116/0x180 mm/kmsan/kmsan_shadow.c:194
 kmsan_get_shadow_origin_ptr+0x81/0xb0 mm/kmsan/kmsan_shadow.c:154
 __msan_metadata_ptr_for_load_8+0x10/0x20 mm/kmsan/kmsan_instr.c:55
 nsim_dev_trap_report_work+0x46/0x1180 drivers/net/netdevsim/dev.c:588
 process_one_work+0x1688/0x2140 kernel/workqueue.c:2269
 worker_thread+0x10bc/0x2730 kernel/workqueue.c:2415
 kthread+0x551/0x590 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293

Local variable ----sg.i@wg_packet_encrypt_worker created at:
 encrypt_packet drivers/net/wireguard/send.c:167 [inline]
 wg_packet_encrypt_worker+0x4bb/0x26d0 drivers/net/wireguard/send.c:301
 encrypt_packet drivers/net/wireguard/send.c:167 [inline]
 wg_packet_encrypt_worker+0x4bb/0x26d0 drivers/net/wireguard/send.c:301
=====================================================