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CVE-2025-22075— rtnetlink: Allocate vfinfo size for VF GUIDs when supported

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rtnetlink未正确分配VF GUIDs所需空间，可能导致消息过长错误。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1212 · Exploitation for Credential Access

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 30aad41721e087babcf27c5192474724d555936c< 0f5489707cf528f9df2f39a3045c1ee713ec90e7 affected
30aad41721e087babcf27c5192474724d555936c< bb7bdf636cef74cdd7a7d548bdc7457ae161f617 affected
30aad41721e087babcf27c5192474724d555936c< 5fed5f6de3cf734b231a11775748a6871ee3020f affected
30aad41721e087babcf27c5192474724d555936c< 15f150771e0ec97f8ab1657e7d2568e593c7fa04 affected
30aad41721e087babcf27c5192474724d555936c< 28b21ee8e8fb326ba961a4bbce04ec04c65e705a affected
30aad41721e087babcf27c5192474724d555936c< 365c1ae819455561d4746aafabad673e4bcb0163 affected
30aad41721e087babcf27c5192474724d555936c< 5f39454468329bb7fc7fc4895a6ba6ae3b95027e affected
30aad41721e087babcf27c5192474724d555936c< 23f00807619d15063d676218f36c5dfeda1eb420 affected
… +10 more rows
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I. Basic Information for CVE-2025-22075

Vulnerability Information
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Vulnerability Title
rtnetlink: Allocate vfinfo size for VF GUIDs when supported
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: rtnetlink: Allocate vfinfo size for VF GUIDs when supported Commit 30aad41721e0 ("net/core: Add support for getting VF GUIDs") added support for getting VF port and node GUIDs in netlink ifinfo messages, but their size was not taken into consideration in the function that allocates the netlink message, causing the following warning when a netlink message is filled with many VF port and node GUIDs: # echo 64 > /sys/bus/pci/devices/0000\:08\:00.0/sriov_numvfs # ip link show dev ib0 RTNETLINK answers: Message too long Cannot send link get request: Message too long Kernel warning: ------------[ cut here ]------------ WARNING: CPU: 2 PID: 1930 at net/core/rtnetlink.c:4151 rtnl_getlink+0x586/0x5a0 Modules linked in: xt_conntrack xt_MASQUERADE nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter overlay mlx5_ib macsec mlx5_core tls rpcrdma rdma_ucm ib_uverbs ib_iser libiscsi scsi_transport_iscsi ib_umad rdma_cm iw_cm ib_ipoib fuse ib_cm ib_core CPU: 2 UID: 0 PID: 1930 Comm: ip Not tainted 6.14.0-rc2+ #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:rtnl_getlink+0x586/0x5a0 Code: cb 82 e8 3d af 0a 00 4d 85 ff 0f 84 08 ff ff ff 4c 89 ff 41 be ea ff ff ff e8 66 63 5b ff 49 c7 07 80 4f cb 82 e9 36 fc ff ff <0f> 0b e9 16 fe ff ff e8 de a0 56 00 66 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ffff888113557348 EFLAGS: 00010246 RAX: 00000000ffffffa6 RBX: ffff88817e87aa34 RCX: dffffc0000000000 RDX: 0000000000000003 RSI: 0000000000000000 RDI: ffff88817e87afb8 RBP: 0000000000000009 R08: ffffffff821f44aa R09: 0000000000000000 R10: ffff8881260f79a8 R11: ffff88817e87af00 R12: ffff88817e87aa00 R13: ffffffff8563d300 R14: 00000000ffffffa6 R15: 00000000ffffffff FS: 00007f63a5dbf280(0000) GS:ffff88881ee00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f63a5ba4493 CR3: 00000001700fe002 CR4: 0000000000772eb0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> ? __warn+0xa5/0x230 ? rtnl_getlink+0x586/0x5a0 ? report_bug+0x22d/0x240 ? handle_bug+0x53/0xa0 ? exc_invalid_op+0x14/0x50 ? asm_exc_invalid_op+0x16/0x20 ? skb_trim+0x6a/0x80 ? rtnl_getlink+0x586/0x5a0 ? __pfx_rtnl_getlink+0x10/0x10 ? rtnetlink_rcv_msg+0x1e5/0x860 ? __pfx___mutex_lock+0x10/0x10 ? rcu_is_watching+0x34/0x60 ? __pfx_lock_acquire+0x10/0x10 ? stack_trace_save+0x90/0xd0 ? filter_irq_stacks+0x1d/0x70 ? kasan_save_stack+0x30/0x40 ? kasan_save_stack+0x20/0x40 ? kasan_save_track+0x10/0x30 rtnetlink_rcv_msg+0x21c/0x860 ? entry_SYSCALL_64_after_hwframe+0x76/0x7e ? __pfx_rtnetlink_rcv_msg+0x10/0x10 ? arch_stack_walk+0x9e/0xf0 ? rcu_is_watching+0x34/0x60 ? lock_acquire+0xd5/0x410 ? rcu_is_watching+0x34/0x60 netlink_rcv_skb+0xe0/0x210 ? __pfx_rtnetlink_rcv_msg+0x10/0x10 ? __pfx_netlink_rcv_skb+0x10/0x10 ? rcu_is_watching+0x34/0x60 ? __pfx___netlink_lookup+0x10/0x10 ? lock_release+0x62/0x200 ? netlink_deliver_tap+0xfd/0x290 ? rcu_is_watching+0x34/0x60 ? lock_release+0x62/0x200 ? netlink_deliver_tap+0x95/0x290 netlink_unicast+0x31f/0x480 ? __pfx_netlink_unicast+0x10/0x10 ? rcu_is_watching+0x34/0x60 ? lock_acquire+0xd5/0x410 netlink_sendmsg+0x369/0x660 ? lock_release+0x62/0x200 ? __pfx_netlink_sendmsg+0x10/0x10 ? import_ubuf+0xb9/0xf0 ? __import_iovec+0x254/0x2b0 ? lock_release+0x62/0x200 ? __pfx_netlink_sendmsg+0x10/0x10 ____sys_sendmsg+0x559/0x5a0 ? __pfx_____sys_sendmsg+0x10/0x10 ? __pfx_copy_msghdr_from_user+0x10/0x10 ? rcu_is_watching+0x34/0x60 ? do_read_fault+0x213/0x4a0 ? rcu_is_watching+0x34/0x60 ___sys_sendmsg+0xe4/0x150 ? __pfx____sys_sendmsg+0x10/0x10 ? do_fault+0x2cc/0x6f0 ? handle_pte_fault+0x2e3/0x3d0 ? __pfx_handle_pte_fault+0x10/0x10 ---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
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rtnetlink未正确分配VF GUIDs所需空间，可能导致消息过长错误。
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 30aad41721e087babcf27c5192474724d555936c ~ 0f5489707cf528f9df2f39a3045c1ee713ec90e7 -
Linux Linux 5.5 -

II. Public POCs for CVE-2025-22075

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III. Intelligence Information for CVE-2025-22075

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Other References for CVE-2025-22075 (8)

Same Patch Batch · Linux · 2025-04-16 · 127 CVEs total

CVE-2025-22021 10.0 CRITICAL netfilter: socket: Lookup orig tuple for IPv6 SNAT
CVE-2025-22077 9.8 CRITICAL Revert "smb: client: fix TCP timers deadlock after rmmod"
CVE-2025-22088 9.8 CRITICAL RDMA/erdma: Prevent use-after-free in erdma_accept_newconn()
CVE-2025-22110 9.8 CRITICAL netfilter: nfnetlink_queue: Initialize ctx to avoid memory allocation error
CVE-2025-22074 8.8 HIGH ksmbd: fix r_count dec/increment mismatch
CVE-2025-22040 8.8 HIGH ksmbd: fix session use-after-free in multichannel connection
CVE-2025-22118 8.8 HIGH ice: validate queue quanta parameters to prevent OOB access
CVE-2025-22041 8.8 HIGH ksmbd: fix use-after-free in ksmbd_sessions_deregister()
CVE-2025-22039 8.8 HIGH ksmbd: fix overflow in dacloffset bounds check
CVE-2024-58096 8.8 HIGH wifi: ath11k: add srng->lock for ath11k_hal_srng_* in monitor mode
CVE-2025-22086 8.8 HIGH RDMA/mlx5: Fix mlx5_poll_one() cur_qp update flow
CVE-2025-23133 8.8 HIGH wifi: ath11k: update channel list in reg notifier instead reg worker
CVE-2025-22117 8.7 HIGH ice: fix using untrusted value of pkt_len in ice_vc_fdir_parse_raw()
CVE-2025-22108 8.6 HIGH bnxt_en: Mask the bd_cnt field in the TX BD properly
CVE-2025-22080 8.4 HIGH fs/ntfs3: Prevent integer overflow in hdr_first_de()
CVE-2025-22121 8.4 HIGH ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()
CVE-2025-22038 8.3 HIGH ksmbd: validate zero num_subauth before sub_auth is accessed
CVE-2025-22042 8.1 HIGH ksmbd: add bounds check for create lease context
CVE-2025-22043 8.1 HIGH ksmbd: add bounds check for durable handle context
CVE-2025-22045 7.8 HIGH x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs

Showing top 20 of 127 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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