CVE-2025-21763— neighbour: use RCU protection in __neigh_notify()
Affected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 426b5303eb435d98b9bee37a807be386bc2b3320< e1aed6be381bcd7f46d4ca9d7ef0f5f3d6a1be32 | affected |
426b5303eb435d98b9bee37a807be386bc2b3320< 8666e9aab801328c1408a19fbf4070609dc0695a | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 40d8f2f2a373b6c294ffac394d2bb814b572ead1 | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 784eb2376270e086f7db136d154b8404edacf97b | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 1cbb2aa90cd3fba15ad7efb5cdda28f3d1082379 | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< cdd5c2a12ddad8a77ce1838ff9f29aa587de82df | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< 559307d25235e24b5424778c7332451b6c741159 | affected | ||
426b5303eb435d98b9bee37a807be386bc2b3320< becbd5850c03ed33b232083dd66c6e38c0c0e569 | affected | ||
| … +10 more rows | |||
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I. Basic Information for CVE-2025-21763
Vulnerability Information
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Vulnerability Title
neighbour: use RCU protection in __neigh_notify()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: neighbour: use RCU protection in __neigh_notify() __neigh_notify() can be called without RTNL or RCU protection. Use RCU protection to avoid potential UAF.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 资源管理错误漏洞
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__neigh_notify函数未使用RCU保护，可能导致释放后重用。
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
II. Public POCs for CVE-2025-21763
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-21763 (5)
Other References for CVE-2025-21763 (3)
Same Patch Batch · Linux · 2025-02-27 · 177 CVEs total
| CVE-2025-21756 | 7.8 HIGH | vsock: Keep the binding until socket destruction |
| CVE-2025-21773 | can: etas_es58x: fix potential NULL pointer dereference on udev->serial | |
| CVE-2025-21761 | openvswitch: use RCU protection in ovs_vport_cmd_fill_info() | |
| CVE-2025-21762 | arp: use RCU protection in arp_xmit() | |
| CVE-2025-21764 | ndisc: use RCU protection in ndisc_alloc_skb() | |
| CVE-2025-21765 | ipv6: use RCU protection in ip6_default_advmss() | |
| CVE-2025-21766 | ipv4: use RCU protection in __ip_rt_update_pmtu() | |
| CVE-2025-21767 | clocksource: Use migrate_disable() to avoid calling get_random_u32() in atomic context | |
| CVE-2025-21769 | ptp: vmclock: Add .owner to vmclock_miscdev_fops | |
| CVE-2025-21768 | net: ipv6: fix dst ref loops in rpl, seg6 and ioam6 lwtunnels | |
| CVE-2025-21771 | sched_ext: Fix incorrect autogroup migration detection | |
| CVE-2025-21770 | iommu: Fix potential memory leak in iopf_queue_remove_device() | |
| CVE-2025-21777 | ring-buffer: Validate the persistent meta data subbuf array | |
| CVE-2025-21783 | gpiolib: Fix crash on error in gpiochip_get_ngpios() | |
| CVE-2025-21781 | batman-adv: fix panic during interface removal | |
| CVE-2025-21780 | drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() | |
| CVE-2025-21779 | KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel | |
| CVE-2025-21778 | tracing: Do not allow mmap() of persistent ring buffer | |
| CVE-2025-21774 | can: rockchip: rkcanfd_handle_rx_fifo_overflow_int(): bail out if skb cannot be allocated | |
| CVE-2025-21772 | partitions: mac: fix handling of bogus partition table |
Showing top 20 of 177 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT - CVE-2026-46237
drm/amdgpu/vcn3: Avoid overflow on msg bound check
Same vendor: Linux
- CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf - CVE-2026-46238
batman-adv: stop caching unowned originator pointers in BAT - CVE-2026-46237
drm/amdgpu/vcn3: Avoid overflow on msg bound check
V. Comments for CVE-2025-21763
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