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CVE-2024-47707— ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()

Quick assessment

Affected

Linux Linux

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ipv6模块在rt6_uncached_list_flush_dev函数中可能发生空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.24% · P14 Updated Oct 15, 2026

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 20

Vendor	Product	Version Range	Status
Linux	Linux	`e332bc67cf5e5e5b71a1aec9750d0791aac65183< a61a174280dad99f25a7dee920310885daf2552b`	affected
		`e332bc67cf5e5e5b71a1aec9750d0791aac65183< 8a8b83016f06805775db099c8377024b6fa5b975`	affected
		`e332bc67cf5e5e5b71a1aec9750d0791aac65183< e43dd28405e6b9935279996725ee11e6306547a5`	affected
		`e332bc67cf5e5e5b71a1aec9750d0791aac65183< f2bd9635543ca41533b870f420872819f8331823`	affected
		`e332bc67cf5e5e5b71a1aec9750d0791aac65183< 0ceb2f2b5c813f932d6e60d3feec5e7e713da783`	affected
		`e332bc67cf5e5e5b71a1aec9750d0791aac65183< 9a0ddc73be37d19dff1ba08290af34e707d18e50`	affected
		`e332bc67cf5e5e5b71a1aec9750d0791aac65183< 08409e401622e2896b4313be9f781bde8a2a6a53`	affected
		`e332bc67cf5e5e5b71a1aec9750d0791aac65183< 04ccecfa959d3b9ae7348780d8e379c6486176ac`	affected
… +12 more rows

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I. Basic Information for CVE-2024-47707

Vulnerability Information

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Vulnerability Title

ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()

Source: CVE Program / CVE List V5

Vulnerability Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev() Blamed commit accidentally removed a check for rt->rt6i_idev being NULL, as spotted by syzbot: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 10998 Comm: syz-executor Not tainted 6.11.0-rc6-syzkaller-00208-g625403177711 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [inline] RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914 Code: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06 RSP: 0018:ffffc900047374e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0 RBP: ffffc900047375d0 R08: 0000000000000003 R09: fffff520008e6e8c R10: dffffc0000000000 R11: fffff520008e6e8c R12: 1ffff1100fdf8f18 R13: ffff88807efc7998 R14: 0000000000000000 R15: ffff88807efc7930 FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002a80 CR3: 0000000022f62000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> addrconf_ifdown+0x15d/0x1bd0 net/ipv6/addrconf.c:3856 addrconf_notify+0x3cb/0x1020 notifier_call_chain+0x19f/0x3e0 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:2032 [inline] call_netdevice_notifiers net/core/dev.c:2046 [inline] unregister_netdevice_many_notify+0xd81/0x1c40 net/core/dev.c:11352 unregister_netdevice_many net/core/dev.c:11414 [inline] unregister_netdevice_queue+0x303/0x370 net/core/dev.c:11289 unregister_netdevice include/linux/netdevice.h:3129 [inline] __tun_detach+0x6b9/0x1600 drivers/net/tun.c:685 tun_detach drivers/net/tun.c:701 [inline] tun_chr_close+0x108/0x1b0 drivers/net/tun.c:3510 __fput+0x24a/0x8a0 fs/file_table.c:422 task_work_run+0x24f/0x310 kernel/task_work.c:228 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0xa2f/0x27f0 kernel/exit.c:882 do_group_exit+0x207/0x2c0 kernel/exit.c:1031 __do_sys_exit_group kernel/exit.c:1042 [inline] __se_sys_exit_group kernel/exit.c:1040 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1040 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1acc77def9 Code: Unable to access opcode bytes at 0x7f1acc77decf. RSP: 002b:00007ffeb26fa738 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1acc77def9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043 RBP: 00007f1acc7dd508 R08: 00007ffeb26f84d7 R09: 0000000000000003 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000003 R14: 00000000ffffffff R15: 00007ffeb26fa8e0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [inline] RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914 Code: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06 RSP: 0018:ffffc900047374e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0 R ---truncated---

Source: CVE Program / CVE List V5

CVSS Information

N/A

Source: CVE Program / CVE List V5

Vulnerability Type

N/A

Source: CVE Program / CVE List V5

Vulnerability Title

Linux kernel 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Linux	Linux	e332bc67cf5e5e5b71a1aec9750d0791aac65183 ~ a61a174280dad99f25a7dee920310885daf2552b	-
Linux	Linux	4.3	-

II. Public POCs for CVE-2024-47707

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2024-47707

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Patches & Fixes for CVE-2024-47707 (5)

https://www.cve.org/CVERecord?id=CVE-2024-47707

Same Patch Batch · Linux · 2024-10-21 · 372 CVEs total

CVE-2024-50043	9.8 CRITICAL	nfsd: fix possible badness in FREE_STATEID
CVE-2022-48985	9.8 CRITICAL	net: mana: Fix race on per-CQ variable napi work_done
CVE-2024-47695	9.8 CRITICAL	RDMA/rtrs-clt: Reset cid to con_num - 1 to stay in bounds
CVE-2024-50033	9.8 CRITICAL	slip: make slhc_remember() more robust against malicious packets
CVE-2024-49855	9.8 CRITICAL	nbd: fix race between timeout and normal completion
CVE-2024-50047	9.8 CRITICAL	smb: client: fix UAF in async decryption
CVE-2022-49003	9.8 CRITICAL	nvme: fix SRCU protection of nvme_ns_head list
CVE-2024-50046	9.8 CRITICAL	NFSv4: Prevent NULL-pointer dereference in nfs42_complete_copies()
CVE-2024-49996	9.4 CRITICAL	cifs: Fix buffer overflow when parsing NFS reparse points
CVE-2024-47678	9.4 CRITICAL	icmp: change the order of rate limits
CVE-2022-49017	8.8 HIGH	tipc: re-fetch skb cb after tipc_msg_validate
CVE-2024-50029	8.8 HIGH	Bluetooth: hci_conn: Fix UAF in hci_enhanced_setup_sync
CVE-2024-50041	8.8 HIGH	i40e: Fix macvlan leak by synchronizing access to mac_filter_hash
CVE-2024-49939	8.8 HIGH	wifi: rtw89: avoid to add interface to list twice when SER
CVE-2022-48960	8.8 HIGH	net: hisilicon: Fix potential use-after-free in hix5hd2_rx()
CVE-2022-48962	8.8 HIGH	net: hisilicon: Fix potential use-after-free in hisi_femac_rx()
CVE-2022-48964	8.8 HIGH	ravb: Fix potential use-after-free in ravb_rx_gbeth()
CVE-2022-49015	8.8 HIGH	net: hsr: Fix potential use-after-free
CVE-2022-48967	8.8 HIGH	NFC: nci: Bounds check struct nfc_target arrays
CVE-2024-49930	8.8 HIGH	wifi: ath11k: fix array out-of-bound access in SoC stats

Showing top 20 of 372 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Linux

Same vendor: Linux

V. Comments for CVE-2024-47707

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Goal Reached Thanks to every supporter — we hit 100%!

CVE-2024-47707— ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()

Quick assessment

Possible ATT&CK Techniques 1 AI

Affected Version Matrix 20

I. Basic Information for CVE-2024-47707

Vulnerability Information

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Vulnerability Title

Vulnerability Description

CVSS Information

Vulnerability Type

Affected Products

II. Public POCs for CVE-2024-47707

III. Intelligence Information for CVE-2024-47707

Patches & Fixes for CVE-2024-47707 (5)

Same Patch Batch · Linux · 2024-10-21 · 372 CVEs total

IV. Related Vulnerabilities

V. Comments for CVE-2024-47707

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