sd 0:0:1:0: [sg0] tag#359 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#359 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#359 CDB[c0]: 00 00 00 00 00 00 00 00
=====================================================
BUG: KMSAN: uninit-value in update_stack_state+0x974/0xb40 arch/x86/kernel/unwind_frame.c:238
CPU: 1 PID: 4855 Comm: systemd-journal Not tainted 5.8.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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+0x974/0xb40 arch/x86/kernel/unwind_frame.c:238
 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:kmsan_get_shadow_origin_ptr+0x74/0xb0 mm/kmsan/kmsan_shadow.c:154
Code: 5b 41 5e 41 5f 5d c3 4c 89 f7 48 89 ce 31 d2 e8 d2 d7 ff ff 84 c0 74 40 4c 89 f7 31 d2 e8 44 00 00 00 48 85 c0 74 be 48 89 c3 <4c> 89 f7 ba 01 00 00 00 e8 2f 00 00 00 48 89 c2 eb c1 45 0f b6 c7
RSP: 0018:ffff88811974bb10 EFLAGS: 00000286
RAX: ffffd10001826030 RBX: ffffd10001826030 RCX: ffffc90001826030
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffc90001826030
RBP: ffff88811974bb28 R08: ffffea000000000f R09: ffff88812fffa000
R10: 0000000000000004 R11: ffff88811a1c3d00 R12: ffffc90001826038
R13: ffffc90001826030 R14: ffffc90001826030 R15: 0000000000000000
 __msan_metadata_ptr_for_load_8+0x10/0x20 mm/kmsan/kmsan_instr.c:55
 bpf_dispatcher_nop_func include/linux/filter.h:597 [inline]
 bpf_prog_run_pin_on_cpu include/linux/filter.h:597 [inline]
 seccomp_run_filters+0x105/0x530 kernel/seccomp.c:272
 __seccomp_filter+0x4a5/0x25c0 kernel/seccomp.c:817
 __secure_computing+0x2f1/0x4c0 kernel/seccomp.c:950
 syscall_trace_enter+0x637/0xdc0 arch/x86/entry/common.c:194
 do_syscall_64+0x54/0x160 arch/x86/entry/common.c:382
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f4a5cca0f17
Code: Bad RIP value.
RSP: 002b:00007fffbbeb7448 EFLAGS: 00000202 ORIG_RAX: 0000000000000027
RAX: ffffffffffffffda RBX: 00005607684b51e0 RCX: 00007f4a5cca0f17
RDX: 0000000000000000 RSI: 00007fffbbeb7590 RDI: 00005607684b51e0
RBP: 00007fffbbeb7590 R08: 0f824958ebc79710 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000012f7
R13: 00007fffbbeb7538 R14: 00007fffbbeb7590 R15: 00007fffbbeb7b58

Local variable ----stack@__bpf_prog_run32 created at:
 __bpf_prog_run32+0x6e/0x190 kernel/bpf/core.c:1692
 __bpf_prog_run32+0x6e/0x190 kernel/bpf/core.c:1692
=====================================================