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BUG: KMSAN: uninit-value in __alloc_skb+0x215/0xa10 net/core/skbuff.c:197
CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.3.0-rc7+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x191/0x1f0 lib/dump_stack.c:113
 kmsan_report+0x13a/0x2b0 mm/kmsan/kmsan_report.c:108
 __msan_warning+0x73/0xe0 mm/kmsan/kmsan_instr.c:250
 slab_alloc_node mm/slub.c:2749 [inline]
 kmem_cache_alloc_node+0x5d0/0xe70 mm/slub.c:2828
 __alloc_skb+0x215/0xa10 net/core/skbuff.c:197
 alloc_skb include/linux/skbuff.h:1056 [inline]
 new_skb drivers/block/aoe/aoecmd.c:67 [inline]
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x205/0xa80 drivers/block/aoe/aoecmd.c:1372
 discover_timer+0x86/0xa0 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x232/0x530 kernel/time/timer.c:1322
 expire_timers kernel/time/timer.c:1366 [inline]
 __run_timers+0xcdc/0x11a0 kernel/time/timer.c:1685
 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1698
 __do_softirq+0x4a1/0x83a kernel/softirq.c:293
 run_ksoftirqd+0x25/0x40 kernel/softirq.c:607
 smpboot_thread_fn+0x4a3/0x990 kernel/smpboot.c:165
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Uninit was stored to memory at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:150 [inline]
 kmsan_internal_chain_origin+0xd2/0x170 mm/kmsan/kmsan.c:311
 __msan_chain_origin+0x6b/0xe0 mm/kmsan/kmsan_instr.c:184
 ___slab_alloc+0x1dbc/0x1fb0 mm/slub.c:2634
 __slab_alloc mm/slub.c:2687 [inline]
 slab_alloc_node mm/slub.c:2750 [inline]
 kmem_cache_alloc_node+0x769/0xe70 mm/slub.c:2828
 __alloc_skb+0x215/0xa10 net/core/skbuff.c:197
 alloc_skb include/linux/skbuff.h:1056 [inline]
 new_skb drivers/block/aoe/aoecmd.c:67 [inline]
 aoecmd_cfg_pkts drivers/block/aoe/aoecmd.c:426 [inline]
 aoecmd_cfg+0x205/0xa80 drivers/block/aoe/aoecmd.c:1372
 discover_timer+0x86/0xa0 drivers/block/aoe/aoemain.c:24
 call_timer_fn+0x232/0x530 kernel/time/timer.c:1322
 expire_timers kernel/time/timer.c:1366 [inline]
 __run_timers+0xcdc/0x11a0 kernel/time/timer.c:1685
 run_timer_softirq+0x2d/0x50 kernel/time/timer.c:1698
 __do_softirq+0x4a1/0x83a kernel/softirq.c:293
 run_ksoftirqd+0x25/0x40 kernel/softirq.c:607
 smpboot_thread_fn+0x4a3/0x990 kernel/smpboot.c:165
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355

Uninit was created at:
 kmsan_save_stack_with_flags mm/kmsan/kmsan.c:150 [inline]
 kmsan_internal_poison_shadow+0x53/0x100 mm/kmsan/kmsan.c:134
 kmsan_slab_free+0x8d/0x100 mm/kmsan/kmsan_hooks.c:123
 slab_free_freelist_hook mm/slub.c:1472 [inline]
 slab_free mm/slub.c:3038 [inline]
 kmem_cache_free_bulk+0x3ad9/0x3f50 mm/slub.c:3163
 __kfree_skb_flush+0xb0/0x100 net/core/skbuff.c:862
 net_rx_action+0x1908/0x1950 net/core/dev.c:6441
 __do_softirq+0x4a1/0x83a kernel/softirq.c:293
 run_ksoftirqd+0x25/0x40 kernel/softirq.c:607
 smpboot_thread_fn+0x4a3/0x990 kernel/smpboot.c:165
 kthread+0x4b5/0x4f0 kernel/kthread.c:256
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355
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