From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Pablo Neira Ayuso <pablo@netfilter.org>
Subject: [PATCH 4.14 12/17] netfilter: nf_tables: initialize registers in nft_do_chain()
Date: Fri, 25 Mar 2022 16:04:46 +0100 [thread overview]
Message-ID: <20220325150417.120190348@linuxfoundation.org> (raw)
In-Reply-To: <20220325150416.756136126@linuxfoundation.org>
From: Pablo Neira Ayuso <pablo@netfilter.org>
commit 4c905f6740a365464e91467aa50916555b28213d upstream.
Initialize registers to avoid stack leak into userspace.
Fixes: 96518518cc41 ("netfilter: add nftables")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
net/netfilter/nf_tables_core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -150,7 +150,7 @@ nft_do_chain(struct nft_pktinfo *pkt, vo
const struct net *net = nft_net(pkt);
const struct nft_rule *rule;
const struct nft_expr *expr, *last;
- struct nft_regs regs;
+ struct nft_regs regs = {};
unsigned int stackptr = 0;
struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE];
int rulenum;
next prev parent reply other threads:[~2022-03-25 15:06 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-25 15:04 [PATCH 4.14 00/17] 4.14.274-rc1 review Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 01/17] nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 02/17] net: ipv6: fix skb_over_panic in __ip6_append_data Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 03/17] esp: Fix possible buffer overflow in ESP transformation Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 04/17] staging: fbtft: fb_st7789v: reset display before initialization Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 05/17] thermal: int340x: fix memory leak in int3400_notify() Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 06/17] llc: fix netdevice reference leaks in llc_ui_bind() Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 07/17] ALSA: pcm: Add stream lock during PCM reset ioctl operations Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 08/17] ALSA: usb-audio: Add mute TLV for playback volumes on RODE NT-USB Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 09/17] ALSA: cmipci: Restore aux vol on suspend/resume Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 10/17] ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 11/17] drivers: net: xgene: Fix regression in CRC stripping Greg Kroah-Hartman
2022-03-25 15:04 ` Greg Kroah-Hartman [this message]
2022-03-25 15:04 ` [PATCH 4.14 13/17] ACPI / x86: Work around broken XSDT on Advantech DAC-BJ01 board Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 14/17] ACPI: battery: Add device HID and quirk for Microsoft Surface Go 3 Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 15/17] ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 16/17] crypto: qat - disable registration of algorithms Greg Kroah-Hartman
2022-03-25 15:04 ` [PATCH 4.14 17/17] mac80211: fix potential double free on mesh join Greg Kroah-Hartman
2022-03-26 14:29 ` [PATCH 4.14 00/17] 4.14.274-rc1 review Naresh Kamboju
2022-03-27 0:50 ` Guenter Roeck
2022-03-28 14:24 ` Jon Hunter
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