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

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-23001— macvlan: fix possible UAF in macvlan_forward_source()

CVSS 7.8 · High EPSS 0.01% · P1
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-23001

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
macvlan: fix possible UAF in macvlan_forward_source()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: macvlan: fix possible UAF in macvlan_forward_source() Add RCU protection on (struct macvlan_source_entry)->vlan. Whenever macvlan_hash_del_source() is called, we must clear entry->vlan pointer before RCU grace period starts. This allows macvlan_forward_source() to skip over entries queued for freeing. Note that macvlan_dev are already RCU protected, as they are embedded in a standard netdev (netdev_priv(ndev)). https: //lore.kernel.org/netdev/695fb1e8.050a0220.1c677c.039f.GAE@google.com/T/#u
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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，该漏洞源于释放后重用问题，可能导致空指针取消引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux 79cf79abce71eb7dbc40e2f3121048ca5405cb47 ~ 8133e85b8a3ec9f10d861e0002ec6037256e987e -
LinuxLinux 3.18 -

II. Public POCs for CVE-2026-23001

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-23001

请登录查看更多情报信息。

Same Patch Batch · Linux · 2026-01-25 · 20 CVEs total

CVE-2026-230107.8 HIGHipv6: Fix use-after-free in inet6_addr_del().
CVE-2026-229997.8 HIGHnet/sched: sch_qfq: do not free existing class in qfq_change_class()
CVE-2026-230047.8 HIGHdst: fix races in rt6_uncached_list_del() and rt_del_uncached_list()
CVE-2026-229977.5 HIGHnet: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the
CVE-2026-229987.5 HIGHnvme-tcp: fix NULL pointer dereferences in nvmet_tcp_build_pdu_iovec
CVE-2026-230037.5 HIGHip6_tunnel: use skb_vlan_inet_prepare() in __ip6_tnl_rcv()
CVE-2026-230137.0 HIGHnet: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
CVE-2025-71162dmaengine: tegra-adma: Fix use-after-free
CVE-2025-71163dmaengine: idxd: fix device leaks on compat bind and unbind
CVE-2026-22996net/mlx5e: Don't store mlx5e_priv in mlx5e_dev devlink priv
CVE-2026-23000net/mlx5e: Fix crash on profile change rollback failure
CVE-2026-23002lib/buildid: use __kernel_read() for sleepable context
CVE-2026-23005x86/fpu: Clear XSTATE_BV[i] in guest XSAVE state whenever XFD[i]=1
CVE-2026-23006ASoC: tlv320adcx140: fix null pointer
CVE-2026-23007block: zero non-PI portion of auto integrity buffer
CVE-2026-23008drm/vmwgfx: Fix KMS with 3D on HW version 10
CVE-2026-23009xhci: sideband: don't dereference freed ring when removing sideband endpoint
CVE-2026-23011ipv4: ip_gre: make ipgre_header() robust
CVE-2026-23012mm/damon/core: remove call_control in inactive contexts

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-23001

No comments yet

Leave a comment