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CVE-2025-38469— KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls

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Xen schedop poll超调用模拟中的清理逻辑错误。

AI Predicted 5.5 Difficulty: Hard EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 92c58965e9656dc6e682a8ffe520fac0fb256d13< 3ee59c38ae7369ad1f7b846e05633ccf0d159fab affected
92c58965e9656dc6e682a8ffe520fac0fb256d13< fd627ac8a5cff4d45269f164b13ddddc0726f2cc affected
92c58965e9656dc6e682a8ffe520fac0fb256d13< 061c553c66bc1638c280739999224c8000fd4602 affected
92c58965e9656dc6e682a8ffe520fac0fb256d13< 5a53249d149f48b558368c5338b9921b76a12f8c affected
6.2 affected
< 6.2 unaffected
6.6.100≤ 6.6.* unaffected
6.12.40≤ 6.12.* unaffected
… +2 more rows
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I. Basic Information for CVE-2025-38469

Vulnerability Information
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Vulnerability Title
KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls kvm_xen_schedop_poll does a kmalloc_array() when a VM polls the host for more than one event channel potr (nr_ports > 1). After the kmalloc_array(), the error paths need to go through the "out" label, but the call to kvm_read_guest_virt() does not. [Adjusted commit message. - Paolo]
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Xen schedop poll超调用模拟中的清理逻辑错误。
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 92c58965e9656dc6e682a8ffe520fac0fb256d13 ~ 3ee59c38ae7369ad1f7b846e05633ccf0d159fab -
Linux Linux 6.2 -

II. Public POCs for CVE-2025-38469

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III. Intelligence Information for CVE-2025-38469

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Same Patch Batch · Linux · 2025-07-28 · 29 CVEs total

CVE-2025-38471 9.8 CRITICAL tls: always refresh the queue when reading sock
CVE-2025-38472 9.8 CRITICAL netfilter: nf_conntrack: fix crash due to removal of uninitialised entry
CVE-2025-38490 9.8 CRITICAL net: libwx: remove duplicate page_pool_put_full_page()
CVE-2025-38476 9.8 CRITICAL rpl: Fix use-after-free in rpl_do_srh_inline().
CVE-2025-38488 9.8 CRITICAL smb: client: fix use-after-free in crypt_message when using async crypto
CVE-2025-38495 8.8 HIGH HID: core: ensure the allocated report buffer can contain the reserved report ID
CVE-2025-38491 8.2 HIGH mptcp: make fallback action and fallback decision atomic
CVE-2025-38470 7.8 HIGH net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime
CVE-2025-38494 7.8 HIGH HID: core: do not bypass hid_hw_raw_request
CVE-2025-38485 7.8 HIGH iio: accel: fxls8962af: Fix use after free in fxls8962af_fifo_flush
CVE-2025-38486 7.8 HIGH soundwire: Revert "soundwire: qcom: Add set_channel_map api support"
CVE-2025-38484 7.8 HIGH iio: backend: fix out-of-bound write
CVE-2025-38478 7.8 HIGH comedi: Fix initialization of data for instructions that write to subdevice
CVE-2025-38477 7.8 HIGH net/sched: sch_qfq: Fix race condition on qfq_aggregate
CVE-2025-38475 7.8 HIGH smc: Fix various oops due to inet_sock type confusion.
CVE-2025-38482 comedi: das6402: Fix bit shift out of bounds
CVE-2025-38483 comedi: das16m1: Fix bit shift out of bounds
CVE-2025-38481 comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large
CVE-2025-38480 comedi: Fix use of uninitialized data in insn_rw_emulate_bits()
CVE-2025-38487 soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled

Showing top 20 of 29 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38469

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