CVE-2025-38590— net/mlx5e: Remove skb secpath if xfrm state is not found
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net/mlx5e模块在未找到xfrm状态时未移除skb secpath。
Possible ATT&CK Techniques 1 AI
T1499.001 · OS Exhaustion FloodAffected Version Matrix 12
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | b2ac7541e3777f325c49d900550c9e3dd10c0eda< 314f568b84b01f6eac1e4313ca47f9ade4349443 |
affected |
b2ac7541e3777f325c49d900550c9e3dd10c0eda< 781a0bbf377443ef06f3248221f06cb555935530 |
affected | ||
b2ac7541e3777f325c49d900550c9e3dd10c0eda< 3a5782431d84716b66302b07ff1b32fea1023bd5 |
affected | ||
b2ac7541e3777f325c49d900550c9e3dd10c0eda< 137b12a4900eb6971b889839eab6036f72cbb217 |
affected | ||
b2ac7541e3777f325c49d900550c9e3dd10c0eda< 6d19c44b5c6dd72f9a357d0399604ec16a77de3c |
affected | ||
5.9 |
affected | ||
< 5.9 |
unaffected | ||
6.6.102≤ 6.6.* |
unaffected | ||
| … +4 more rows | |||
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I. Basic Information for CVE-2025-38590
Vulnerability Information
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Vulnerability Title
net/mlx5e: Remove skb secpath if xfrm state is not found
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Remove skb secpath if xfrm state is not found
Hardware returns a unique identifier for a decrypted packet's xfrm
state, this state is looked up in an xarray. However, the state might
have been freed by the time of this lookup.
Currently, if the state is not found, only a counter is incremented.
The secpath (sp) extension on the skb is not removed, resulting in
sp->len becoming 0.
Subsequently, functions like __xfrm_policy_check() attempt to access
fields such as xfrm_input_state(skb)->xso.type (which dereferences
sp->xvec[sp->len - 1]) without first validating sp->len. This leads to
a crash when dereferencing an invalid state pointer.
This patch prevents the crash by explicitly removing the secpath
extension from the skb if the xfrm state is not found after hardware
decryption. This ensures downstream functions do not operate on a
zero-length secpath.
BUG: unable to handle page fault for address: ffffffff000002c8
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 282e067 P4D 282e067 PUD 0
Oops: Oops: 0000 [#1] SMP
CPU: 12 UID: 0 PID: 0 Comm: swapper/12 Not tainted 6.15.0-rc7_for_upstream_min_debug_2025_05_27_22_44 #1 NONE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:__xfrm_policy_check+0x61a/0xa30
Code: b6 77 7f 83 e6 02 74 14 4d 8b af d8 00 00 00 41 0f b6 45 05 c1 e0 03 48 98 49 01 c5 41 8b 45 00 83 e8 01 48 98 49 8b 44 c5 10 <0f> b6 80 c8 02 00 00 83 e0 0c 3c 04 0f 84 0c 02 00 00 31 ff 80 fa
RSP: 0018:ffff88885fb04918 EFLAGS: 00010297
RAX: ffffffff00000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000002 RSI: 0000000000000002 RDI: 0000000000000000
RBP: ffffffff8311af80 R08: 0000000000000020 R09: 00000000c2eda353
R10: ffff88812be2bbc8 R11: 000000001faab533 R12: ffff88885fb049c8
R13: ffff88812be2bbc8 R14: 0000000000000000 R15: ffff88811896ae00
FS: 0000000000000000(0000) GS:ffff8888dca82000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffff000002c8 CR3: 0000000243050002 CR4: 0000000000372eb0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
? try_to_wake_up+0x108/0x4c0
? udp4_lib_lookup2+0xbe/0x150
? udp_lib_lport_inuse+0x100/0x100
? __udp4_lib_lookup+0x2b0/0x410
__xfrm_policy_check2.constprop.0+0x11e/0x130
udp_queue_rcv_one_skb+0x1d/0x530
udp_unicast_rcv_skb+0x76/0x90
__udp4_lib_rcv+0xa64/0xe90
ip_protocol_deliver_rcu+0x20/0x130
ip_local_deliver_finish+0x75/0xa0
ip_local_deliver+0xc1/0xd0
? ip_protocol_deliver_rcu+0x130/0x130
ip_sublist_rcv+0x1f9/0x240
? ip_rcv_finish_core+0x430/0x430
ip_list_rcv+0xfc/0x130
__netif_receive_skb_list_core+0x181/0x1e0
netif_receive_skb_list_internal+0x200/0x360
? mlx5e_build_rx_skb+0x1bc/0xda0 [mlx5_core]
gro_receive_skb+0xfd/0x210
mlx5e_handle_rx_cqe_mpwrq+0x141/0x280 [mlx5_core]
mlx5e_poll_rx_cq+0xcc/0x8e0 [mlx5_core]
? mlx5e_handle_rx_dim+0x91/0xd0 [mlx5_core]
mlx5e_napi_poll+0x114/0xab0 [mlx5_core]
__napi_poll+0x25/0x170
net_rx_action+0x32d/0x3a0
? mlx5_eq_comp_int+0x8d/0x280 [mlx5_core]
? notifier_call_chain+0x33/0xa0
handle_softirqs+0xda/0x250
irq_exit_rcu+0x6d/0xc0
common_interrupt+0x81/0xa0
</IRQ>
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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net/mlx5e模块在未找到xfrm状态时未移除skb secpath。
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-2025-38590
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-08-19 · 59 CVEs total
| CVE-2025-38561 | 9.8 CRITICAL | ksmbd: fix Preauh_HashValue race condition |
| CVE-2025-38566 | 9.8 CRITICAL | sunrpc: fix handling of server side tls alerts |
| CVE-2025-38560 | 9.3 CRITICAL | x86/sev: Evict cache lines during SNP memory validation |
| CVE-2025-38601 | 8.8 HIGH | wifi: ath11k: clear initialized flag for deinit-ed srng lists |
| CVE-2025-38600 | 8.8 HIGH | wifi: mt76: mt7925: fix off by one in mt7925_mcu_hw_scan() |
| CVE-2025-38599 | 8.8 HIGH | wifi: mt76: mt7996: Fix possible OOB access in mt7996_tx() |
| CVE-2025-38592 | 8.8 HIGH | Bluetooth: hci_devcd_dump: fix out-of-bounds via dev_coredumpv |
| CVE-2025-38608 | 8.6 HIGH | bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls |
| CVE-2025-38574 | 8.6 HIGH | pptp: ensure minimal skb length in pptp_xmit() |
| CVE-2025-38571 | 8.2 HIGH | sunrpc: fix client side handling of tls alerts |
| CVE-2025-38615 | 7.8 HIGH | fs/ntfs3: cancle set bad inode after removing name fails |
| CVE-2025-38579 | 7.8 HIGH | f2fs: fix KMSAN uninit-value in extent_info usage |
| CVE-2025-38604 | 7.8 HIGH | wifi: rtl818x: Kill URBs before clearing tx status queue |
| CVE-2025-38607 | 7.8 HIGH | bpf: handle jset (if a & b ...) as a jump in CFG computation |
| CVE-2025-38614 | 7.8 HIGH | eventpoll: Fix semi-unbounded recursion |
| CVE-2025-38593 | 7.8 HIGH | Bluetooth: hci_sync: fix double free in 'hci_discovery_filter_clear()' |
| CVE-2025-38586 | 7.8 HIGH | bpf, arm64: Fix fp initialization for exception boundary |
| CVE-2025-38582 | 7.8 HIGH | RDMA/hns: Fix double destruction of rsv_qp |
| CVE-2025-38580 | 7.8 HIGH | ext4: fix inode use after free in ext4_end_io_rsv_work() |
| CVE-2025-38555 | 7.8 HIGH | usb: gadget : fix use-after-free in composite_dev_cleanup() |
Showing top 20 of 59 CVEs. View all on vendor page → →
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V. Comments for CVE-2025-38590
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