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Tetsuo Handa a95eb3443f batman-adv: initialize "struct batadv_tvlv_tt_vlan_data"->reserved field
commit 08c27f3322fec11950b8f1384aa0f3b11d028528 upstream.

KMSAN found uninitialized value at batadv_tt_prepare_tvlv_local_data()
[1], for commit ced72933a5e8ab52 ("batman-adv: use CRC32C instead of CRC16
in TT code") inserted 'reserved' field into "struct batadv_tvlv_tt_data"
and commit 7ea7b4a142758dea ("batman-adv: make the TT CRC logic VLAN
specific") moved that field to "struct batadv_tvlv_tt_vlan_data" but left
that field uninitialized.

[1] https://syzkaller.appspot.com/bug?id=07f3e6dba96f0eb3cabab986adcd8a58b9bdbe9d

Reported-by: syzbot <syzbot+50ee810676e6a089487b@syzkaller.appspotmail.com>
Tested-by: syzbot <syzbot+50ee810676e6a089487b@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Fixes: ced72933a5e8ab52 ("batman-adv: use CRC32C instead of CRC16 in TT code")
Fixes: 7ea7b4a142758dea ("batman-adv: make the TT CRC logic VLAN specific")
Acked-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-05-20 16:06:56 +08:00
Documentation Intel:PCI/DPC: Add "pcie_ports=dpc-native" to allow DPC without AER control 2021-04-25 14:31:13 +08:00
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arch ARM: dts: turris-omnia: configure LED[2]/INTn pin as interrupt pin 2021-05-20 16:06:56 +08:00
block block: recalculate segment count for multi-segment discards correctly 2021-04-12 12:53:31 +08:00
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crypto crypto: x86 - Regularize glue function prototypes 2021-04-12 12:53:14 +08:00
drivers parisc: parisc-agp requires SBA IOMMU driver 2021-05-20 16:06:56 +08:00
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include extcon: Add stubs for extcon_register_notifier_all() functions 2021-05-20 16:06:50 +08:00
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mm mm: fix race by making init_zero_pfn() early_initcall 2021-05-20 16:06:49 +08:00
net batman-adv: initialize "struct batadv_tvlv_tt_vlan_data"->reserved field 2021-05-20 16:06:56 +08:00
package net: open CONFIG_XFRM_OFFLOAD for x86 public 2021-05-18 07:22:15 +00:00
samples samples, bpf: Add missing munmap in xdpsock 2021-04-12 12:52:57 +08:00
scripts ftrace: Have recordmcount use w8 to read relp->r_info in arm64_is_fake_mcount 2021-04-12 12:52:52 +08:00
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MAINTAINERS Documentation/llvm: add documentation on building w/ Clang/LLVM 2021-03-16 16:34:24 +08:00
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Tencent Linux Kernel 4.0