rhsa-2025:18932
Vulnerability from csaf_redhat
Published
2025-10-22 00:27
Modified
2025-10-22 04:45
Summary
Red Hat Security Advisory: kernel security update
Notes
Topic
An update for kernel is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: nfsd: don't ignore the return code of svc_proc_register() (CVE-2025-22026)
* kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797)
* kernel: net: usb: smsc75xx: Limit packet length to skb->len (CVE-2023-53125)
* kernel: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 (CVE-2022-50228)
* kernel: vsock: Fix transport_* TOCTOU (CVE-2025-38461)
* kernel: HID: core: Harden s32ton() against conversion to 0 bits (CVE-2025-38556)
* kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() (CVE-2025-39730)
* kernel: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (CVE-2025-39751)
* kernel: Bluetooth: L2CAP: Fix use-after-free (CVE-2023-53305)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"cve": "CVE-2022-50228",
"discovery_date": "2025-06-18T00:00:00+00:00",
"ids": [
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"text": "2373529"
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{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SVM: Don\u0027t BUG if userspace injects an interrupt with GIF=0\n\nDon\u0027t BUG/WARN on interrupt injection due to GIF being cleared,\nsince it\u0027s trivial for userspace to force the situation via\nKVM_SET_VCPU_EVENTS (even if having at least a WARN there would be correct\nfor KVM internally generated injections).\n\n kernel BUG at arch/x86/kvm/svm/svm.c:3386!\n invalid opcode: 0000 [#1] SMP\n CPU: 15 PID: 926 Comm: smm_test Not tainted 5.17.0-rc3+ #264\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015\n RIP: 0010:svm_inject_irq+0xab/0xb0 [kvm_amd]\n Code: \u003c0f\u003e 0b 0f 1f 00 0f 1f 44 00 00 80 3d ac b3 01 00 00 55 48 89 f5 53\n RSP: 0018:ffffc90000b37d88 EFLAGS: 00010246\n RAX: 0000000000000000 RBX: ffff88810a234ac0 RCX: 0000000000000006\n RDX: 0000000000000000 RSI: ffffc90000b37df7 RDI: ffff88810a234ac0\n RBP: ffffc90000b37df7 R08: ffff88810a1fa410 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000\n R13: ffff888109571000 R14: ffff88810a234ac0 R15: 0000000000000000\n FS: 0000000001821380(0000) GS:ffff88846fdc0000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f74fc550008 CR3: 000000010a6fe000 CR4: 0000000000350ea0\n Call Trace:\n \u003cTASK\u003e\n inject_pending_event+0x2f7/0x4c0 [kvm]\n kvm_arch_vcpu_ioctl_run+0x791/0x17a0 [kvm]\n kvm_vcpu_ioctl+0x26d/0x650 [kvm]\n __x64_sys_ioctl+0x82/0xb0\n do_syscall_64+0x3b/0xc0\n entry_SYSCALL_64_after_hwframe+0x44/0xae\n \u003c/TASK\u003e",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: KVM: SVM: Don\u0027t BUG if userspace injects an interrupt with GIF=0",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"summary": "Canonical URL",
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{
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"url": "https://www.cve.org/CVERecord?id=CVE-2022-50228"
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{
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50228"
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{
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"summary": "https://lore.kernel.org/linux-cve-announce/2025061849-CVE-2022-50228-3904@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025061849-CVE-2022-50228-3904@gregkh/T"
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{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:18932"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: KVM: SVM: Don\u0027t BUG if userspace injects an interrupt with GIF=0"
},
{
"cve": "CVE-2023-53125",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2025-05-02T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2363686"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: smsc75xx: Limit packet length to skb-\u003elen\n\nPacket length retrieved from skb data may be larger than\nthe actual socket buffer length (up to 9026 bytes). In such\ncase the cloned skb passed up the network stack will leak\nkernel memory contents.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net: usb: smsc75xx: Limit packet length to skb-\u003elen",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The vulnerability in SMSC LAN75XX based USB 2.0 gigabit ethernet devices driver arises because the driver fails to properly validate packet length fields when receiving network frames. Specifically, the code used size values that could exceed the actual skb-\u003elen, leading to a situation where kernel memory beyond the buffer is copied into the outgoing skb. If the driver is active, a remote attacker on the same network can send oversized Ethernet frames to trigger this bug, resulting in leakage of uninitialized kernel memory (CIA: HNN, Confidentiality: High).",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53125"
},
{
"category": "external",
"summary": "RHBZ#2363686",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363686"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53125",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53125"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53125",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53125"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025050232-CVE-2023-53125-67cf@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025050232-CVE-2023-53125-67cf@gregkh/T"
}
],
"release_date": "2025-05-02T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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},
"url": "https://access.redhat.com/errata/RHSA-2025:18932"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module smsc75xx from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
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"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: net: usb: smsc75xx: Limit packet length to skb-\u003elen"
},
{
"cve": "CVE-2023-53305",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-09-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2395858"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free\n\nFix potential use-after-free in l2cap_le_command_rej.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Bluetooth: L2CAP: Fix use-after-free",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This L2CAP issue is adjacency-only (Bluetooth LE): an attacker must be within radio range and craft malicious LE frames. Impact is primarily kernel crash / DoS.\nIt could trigger a use-after-free condition when processing LE command rejection.\nIn practice an attacker must either establish a BLE connection or rely on the device accepting unauthenticated L2CAP traffic. If the device enforces pairing/authentication for L2CAP operations, exploitation from an unauthenticated remote actor is unlikely.\nFixed in Red Hat Enterprise Linux 9 starting from 9.4.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2023-53305"
},
{
"category": "external",
"summary": "RHBZ#2395858",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2395858"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2023-53305",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-53305"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2023-53305",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53305"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091641-CVE-2023-53305-b8fe@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091641-CVE-2023-53305-b8fe@gregkh/T"
}
],
"release_date": "2025-09-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2025:18932"
},
{
"category": "workaround",
"details": "To mitigate these vulnerabilities on the operating system level, disable the Bluetooth functionality via blocklisting kernel modules in the Linux kernel. The kernel modules can be prevented from being loaded by using system-wide modprobe rules. Instructions on how to disable Bluetooth modules are available on the customer portal at https://access.redhat.com/solutions/2682931.\n\nAlternatively, bluetooth can be disabled within the hardware or at the BIOS level, which will also provide effective mitigation as the kernel will not detect Bluetooth hardware on the system.",
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],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: Bluetooth: L2CAP: Fix use-after-free"
},
{
"cve": "CVE-2025-22026",
"cwe": {
"id": "CWE-252",
"name": "Unchecked Return Value"
},
"discovery_date": "2025-04-16T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2360224"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: don\u0027t ignore the return code of svc_proc_register()\n\nCurrently, nfsd_proc_stat_init() ignores the return value of\nsvc_proc_register(). If the procfile creation fails, then the kernel\nwill WARN when it tries to remove the entry later.\n\nFix nfsd_proc_stat_init() to return the same type of pointer as\nsvc_proc_register(), and fix up nfsd_net_init() to check that and fail\nthe nfsd_net construction if it occurs.\n\nsvc_proc_register() can fail if the dentry can\u0027t be allocated, or if an\nidentical dentry already exists. The second case is pretty unlikely in\nthe nfsd_net construction codepath, so if this happens, return -ENOMEM.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: nfsd: don\u0027t ignore the return code of svc_proc_register()",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-22026"
},
{
"category": "external",
"summary": "RHBZ#2360224",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2360224"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-22026",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22026"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-22026",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22026"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025041654-CVE-2025-22026-f6be@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025041654-CVE-2025-22026-f6be@gregkh/T"
}
],
"release_date": "2025-04-16T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:18932"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: nfsd: don\u0027t ignore the return code of svc_proc_register()"
},
{
"cve": "CVE-2025-37797",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2025-05-02T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2363672"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: hfsc: Fix a UAF vulnerability in class handling\n\nThis patch fixes a Use-After-Free vulnerability in the HFSC qdisc class\nhandling. The issue occurs due to a time-of-check/time-of-use condition\nin hfsc_change_class() when working with certain child qdiscs like netem\nor codel.\n\nThe vulnerability works as follows:\n1. hfsc_change_class() checks if a class has packets (q.qlen != 0)\n2. It then calls qdisc_peek_len(), which for certain qdiscs (e.g.,\n codel, netem) might drop packets and empty the queue\n3. The code continues assuming the queue is still non-empty, adding\n the class to vttree\n4. This breaks HFSC scheduler assumptions that only non-empty classes\n are in vttree\n5. Later, when the class is destroyed, this can lead to a Use-After-Free\n\nThe fix adds a second queue length check after qdisc_peek_len() to verify\nthe queue wasn\u0027t emptied.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The bug could happen only when qdisc with child qdiscs like netem or codel being used.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-37797"
},
{
"category": "external",
"summary": "RHBZ#2363672",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2363672"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-37797",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-37797"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-37797",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37797"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025050210-CVE-2025-37797-2aab@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025050210-CVE-2025-37797-2aab@gregkh/T"
}
],
"release_date": "2025-05-02T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:18932"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module sch_hfsc from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: net_sched: hfsc: Fix a UAF vulnerability in class handling"
},
{
"cve": "CVE-2025-38461",
"cwe": {
"id": "CWE-664",
"name": "Improper Control of a Resource Through its Lifetime"
},
"discovery_date": "2025-07-25T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2383513"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nvsock: Fix transport_* TOCTOU\n\nTransport assignment may race with module unload. Protect new_transport\nfrom becoming a stale pointer.\n\nThis also takes care of an insecure call in vsock_use_local_transport();\nadd a lockdep assert.\n\nBUG: unable to handle page fault for address: fffffbfff8056000\nOops: Oops: 0000 [#1] SMP KASAN\nRIP: 0010:vsock_assign_transport+0x366/0x600\nCall Trace:\n vsock_connect+0x59c/0xc40\n __sys_connect+0xe8/0x100\n __x64_sys_connect+0x6e/0xc0\n do_syscall_64+0x92/0x1c0\n entry_SYSCALL_64_after_hwframe+0x4b/0x53",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: vsock: Fix transport_* TOCTOU",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This patch addresses a race condition in the vsock core that could lead to a use-after-free or NULL pointer dereference when assigning transports during socket initialization.\nThe vulnerability stems from a lack of synchronization between transport selection and potential module unloading, leading to stale pointers being dereferenced.\nA mutex now protects access to the transport selection logic, and reference counting ensures the module is retained during use.\nThe issue has low impact on confidentiality, but may cause a system crash, resulting in high availability impact.\nSince the problem is reachable by unprivileged users via socket operations, Privileges Required = Low (for the CVSS).\nWhile the issue is most clearly triggered during manual module unload, similar conditions can also arise from automatic module unloading, hotplug scripts, or asynchronous transport (de)registration in multi-threaded environments.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38461"
},
{
"category": "external",
"summary": "RHBZ#2383513",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2383513"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38461",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38461"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38461",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38461"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025072507-CVE-2025-38461-33b1@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025072507-CVE-2025-38461-33b1@gregkh/T"
}
],
"release_date": "2025-07-25T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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},
"url": "https://access.redhat.com/errata/RHSA-2025:18932"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module vsock from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: vsock: Fix transport_* TOCTOU"
},
{
"cve": "CVE-2025-38556",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2025-08-19T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2389456"
}
],
"notes": [
{
"category": "description",
"text": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: core: Harden s32ton() against conversion to 0 bits\n\nTesting by the syzbot fuzzer showed that the HID core gets a\nshift-out-of-bounds exception when it tries to convert a 32-bit\nquantity to a 0-bit quantity. Ideally this should never occur, but\nthere are buggy devices and some might have a report field with size\nset to zero; we shouldn\u0027t reject the report or the device just because\nof that.\n\nInstead, harden the s32ton() routine so that it returns a reasonable\nresult instead of crashing when it is called with the number of bits\nset to 0 -- the same as what snto32() does.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: HID: core: Harden s32ton() against conversion to 0 bits",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "HID core could crash on malformed devices that define a 0-bit report field, causing a shift-out-of-bounds in s32ton(). Exploitation requires only connecting a malicious HID device (no privileges or user interaction), leading to kernel crash.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-38556"
},
{
"category": "external",
"summary": "RHBZ#2389456",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2389456"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-38556",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-38556"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-38556",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38556"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025081905-CVE-2025-38556-521e@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025081905-CVE-2025-38556-521e@gregkh/T"
}
],
"release_date": "2025-08-19T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"url": "https://access.redhat.com/errata/RHSA-2025:18932"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
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{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: HID: core: Harden s32ton() against conversion to 0 bits"
},
{
"cve": "CVE-2025-39730",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
},
"discovery_date": "2025-09-07T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2393731"
}
],
"notes": [
{
"category": "description",
"text": "A flaw out of boundary read in the Linux kernel NFS functionality was found in the way connected user sends malicious data to the server. A remote user could use this flaw to crash the system.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "A flaw was found in the NFS server implementation where nfs_fh_to_dentry() failed to properly validate the minimal filehandle length before accessing the embedded structure. An attacker with access to an exported NFS share could send a crafted filehandle, leading to out-of-bounds memory access and a potential kernel crash. This issue results in a remote denial of service against the NFS server.\nThis flaw is limited to a missing bounds check in nfs_fh_to_dentry(), which causes an out-of-bounds read and a kernel crash.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-39730"
},
{
"category": "external",
"summary": "RHBZ#2393731",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2393731"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39730",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39730"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39730",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39730"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025090730-CVE-2025-39730-72c9@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025090730-CVE-2025-39730-72c9@gregkh/T"
}
],
"release_date": "2025-09-07T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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},
"url": "https://access.redhat.com/errata/RHSA-2025:18932"
},
{
"category": "workaround",
"details": "To mitigate this issue, prevent module nfs from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
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],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry()"
},
{
"cve": "CVE-2025-39751",
"cwe": {
"id": "CWE-120",
"name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
},
"discovery_date": "2025-09-11T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2394624"
}
],
"notes": [
{
"category": "description",
"text": "No description is available for this CVE.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
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},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-39751"
},
{
"category": "external",
"summary": "RHBZ#2394624",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2394624"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-39751",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-39751"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-39751",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39751"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2025091142-CVE-2025-39751-c340@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2025091142-CVE-2025-39751-c340@gregkh/T"
}
],
"release_date": "2025-09-11T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2025-10-22T00:27:35+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nThe system must be rebooted for this update to take effect.",
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"restart_required": {
"category": "machine"
},
"url": "https://access.redhat.com/errata/RHSA-2025:18932"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.0,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
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]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "kernel: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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