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alsa-2025:19103
Vulnerability from osv_almalinux
Published
2025-10-27 00:00
Modified
2025-10-28 07:51
Summary
Moderate: kernel-rt security update
Details
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
- kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp (CVE-2023-53297)
- kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (CVE-2025-39817)
- kernel: Bluetooth: Fix potential use-after-free when clear keys (CVE-2023-53386)
- kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)
- kernel: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() (CVE-2025-39849)
- kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path (CVE-2025-39841)
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.
References
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "kernel-rt"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.18.0-553.81.1.rt7.422.el8_10"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "kernel-rt-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.18.0-553.81.1.rt7.422.el8_10"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "kernel-rt-debug"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.18.0-553.81.1.rt7.422.el8_10"
}
],
"type": "ECOSYSTEM"
}
]
},
{
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"name": "kernel-rt-debug-core"
},
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{
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}
]
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{
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"name": "kernel-rt-debug-devel"
},
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}
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{
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],
"details": "The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. \n\nSecurity Fix(es): \n\n * kernel: Bluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp (CVE-2023-53297)\n * kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare (CVE-2025-39817)\n * kernel: Bluetooth: Fix potential use-after-free when clear keys (CVE-2023-53386)\n * kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)\n * kernel: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result() (CVE-2025-39849)\n * kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path (CVE-2025-39841)\n\n\nFor 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.\n",
"id": "ALSA-2025:19103",
"modified": "2025-10-28T07:51:20Z",
"published": "2025-10-27T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2025:19103"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2022-50386"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-53297"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2023-53386"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-39817"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-39841"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2025-39849"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2395681"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2395805"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2396419"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2396431"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2396928"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2396944"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2025-19103.html"
}
],
"related": [
"CVE-2023-53297",
"CVE-2025-39817",
"CVE-2023-53386",
"CVE-2022-50386",
"CVE-2025-39849",
"CVE-2025-39841"
],
"summary": "Moderate: kernel-rt security update"
}
CVE-2022-50386 (GCVE-0-2022-50386)
Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-08-05 08:58
VLAI
EPSS
VEX
Title
Bluetooth: L2CAP: Fix user-after-free
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: Fix user-after-free
This uses l2cap_chan_hold_unless_zero() after calling
__l2cap_get_chan_blah() to prevent the following trace:
Bluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref
*kref)
Bluetooth: chan 0000000023c4974d
Bluetooth: parent 00000000ae861c08
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first
kernel/locking/mutex.c:191 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common
kernel/locking/mutex.c:671 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x278/0x400
kernel/locking/mutex.c:729
Read of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:49 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/11e40d6c0823f699d… | |
| https://git.kernel.org/stable/c/843fc4e386dd84b80… | |
| https://git.kernel.org/stable/c/d91fc2836562f299f… | |
| https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6… | |
| https://git.kernel.org/stable/c/0c108cf3ad386e008… | |
| https://git.kernel.org/stable/c/d1e894f950ad48897… | |
| https://git.kernel.org/stable/c/6ffde6e03085874ae… | |
| https://git.kernel.org/stable/c/15fc21695eb606bdc… | |
| https://git.kernel.org/stable/c/35fcbc4243aad7e7d… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
3df91ea20e744344100b10ae69a17211fcf5b207 , < 11e40d6c0823f699d8ad501e48d1c3ae4be386cd
(git)
Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < 843fc4e386dd84b806a7f07fb062d8c3a44e5364 (git) Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < d91fc2836562f299f34e361e089e9fe154da4f73 (git) Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < 7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45 (git) Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < 0c108cf3ad386e0084277093b55a351c49e0be27 (git) Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < d1e894f950ad48897d1a7cb05909ea29d8c3810e (git) Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < 6ffde6e03085874ae22263ff4cef4869f797e84f (git) Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < 15fc21695eb606bdc5d483b92118ee42610a952d (git) Affected: 3df91ea20e744344100b10ae69a17211fcf5b207 , < 35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f (git) |
|
| Linux | Linux |
Affected:
3.4
Unaffected: 0 , < 3.4 (semver) Unaffected: 4.9.331 , ≤ 4.9.* (semver) Unaffected: 4.14.296 , ≤ 4.14.* (semver) Unaffected: 4.19.262 , ≤ 4.19.* (semver) Unaffected: 5.4.220 , ≤ 5.4.* (semver) Unaffected: 5.10.150 , ≤ 5.10.* (semver) Unaffected: 5.15.75 , ≤ 5.15.* (semver) Unaffected: 5.19.17 , ≤ 5.19.* (semver) Unaffected: 6.0.3 , ≤ 6.0.* (semver) Unaffected: 6.1 , ≤ * (original_commit_for_fix) |
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"attackVector": "ADJACENT_NETWORK",
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"scope": "UNCHANGED",
"userInteraction": "NONE",
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"options": [
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{
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},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-01-14T18:49:08.856293Z",
"version": "2.0.3"
},
"type": "ssvc"
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}
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"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
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],
"providerMetadata": {
"dateUpdated": "2026-01-14T18:53:04.692Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
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"title": "CISA ADP Vulnrichment"
}
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"cna": {
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{
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"versions": [
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"version": "3.4"
},
{
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"status": "unaffected",
"version": "0",
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{
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"version": "4.9.331",
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{
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{
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},
{
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},
{
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"version": "5.10.150",
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},
{
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"status": "unaffected",
"version": "5.15.75",
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},
{
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"status": "unaffected",
"version": "5.19.17",
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},
{
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"version": "6.0.3",
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},
{
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"status": "unaffected",
"version": "6.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
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"vulnerable": true
},
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{
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{
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},
{
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}
],
"negate": false,
"operator": "OR"
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix user-after-free\n\nThis uses l2cap_chan_hold_unless_zero() after calling\n__l2cap_get_chan_blah() to prevent the following trace:\n\nBluetooth: l2cap_core.c:static void l2cap_chan_destroy(struct kref\n*kref)\nBluetooth: chan 0000000023c4974d\nBluetooth: parent 00000000ae861c08\n==================================================================\nBUG: KASAN: use-after-free in __mutex_waiter_is_first\nkernel/locking/mutex.c:191 [inline]\nBUG: KASAN: use-after-free in __mutex_lock_common\nkernel/locking/mutex.c:671 [inline]\nBUG: KASAN: use-after-free in __mutex_lock+0x278/0x400\nkernel/locking/mutex.c:729\nRead of size 8 at addr ffff888006a49b08 by task kworker/u3:2/389"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 8.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:A - The bug is in BR/EDR L2CAP signaling (`l2cap_connect_create_rsp`) reached via ACL frames from a Bluetooth peer (`l2cap_recv_acldata` \u2192 `l2cap_sig_channel`), so exploitation requires adjacent-network Bluetooth proximity.\nAC:L - A remote peer can send L2CAP_CONN_RSP/CREATE_CHAN_RSP while concurrently forcing channel teardown (disconnect/link drop), controlling both sides of the UAF race, so success does not depend on conditions outside attacker influence.\nPR:N - L2CAP connect responses are processed on the signaling CID for established ACL links at default BT_SECURITY_LOW/SDP without authentication or local privileges on the victim host.\nUI:N - No additional victim action is required beyond ordinary Bluetooth connection activity; a malicious adjacent device can trigger the path during normal connect/reconnect flows.\nS:U - This is a standard in-kernel L2CAP channel UAF that enables privilege impact only within the same kernel security authority, not a boundary crossing such as VM/IOMMU escape.\nC:H - Use-after-free of the `l2cap_chan` object allows reclaim and attacker-controlled contents, which can be leveraged for arbitrary kernel memory disclosure.\nI:H - The same UAF enables heap spray and corruption of the freed channel/mutex-related state, providing a path to arbitrary write and control-flow hijacking in the kernel.\nA:H - The KASAN report shows a kernel UAF during `l2cap_chan_lock`, which can oops/panic the kernel even when not fully exploited for code execution."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T08:58:30.414Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/11e40d6c0823f699d8ad501e48d1c3ae4be386cd"
},
{
"url": "https://git.kernel.org/stable/c/843fc4e386dd84b806a7f07fb062d8c3a44e5364"
},
{
"url": "https://git.kernel.org/stable/c/d91fc2836562f299f34e361e089e9fe154da4f73"
},
{
"url": "https://git.kernel.org/stable/c/7d6f9cb24d2b2f6b6370eac074e2e6b1bafdad45"
},
{
"url": "https://git.kernel.org/stable/c/0c108cf3ad386e0084277093b55a351c49e0be27"
},
{
"url": "https://git.kernel.org/stable/c/d1e894f950ad48897d1a7cb05909ea29d8c3810e"
},
{
"url": "https://git.kernel.org/stable/c/6ffde6e03085874ae22263ff4cef4869f797e84f"
},
{
"url": "https://git.kernel.org/stable/c/15fc21695eb606bdc5d483b92118ee42610a952d"
},
{
"url": "https://git.kernel.org/stable/c/35fcbc4243aad7e7d020b7c1dfb14bb888b20a4f"
}
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"title": "Bluetooth: L2CAP: Fix user-after-free",
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CVE-2023-53297 (GCVE-0-2023-53297)
Vulnerability from cvelistv5 – Published: 2025-09-16 08:11 – Updated: 2026-08-05 09:13
VLAI
EPSS
VEX
Title
Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
conn->chan_lock isn't acquired before l2cap_get_chan_by_scid,
if l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance'
is triggered.
Severity
8.8 (High)
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:12 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/5f352a56f0e607e6f… | |
| https://git.kernel.org/stable/c/6a27762340ad08643… | |
| https://git.kernel.org/stable/c/2112c4c47d36bc5ab… | |
| https://git.kernel.org/stable/c/55410a9144c76ecda… | |
| https://git.kernel.org/stable/c/116b9c002c894097a… | |
| https://git.kernel.org/stable/c/fd269a0435f8e9943… | |
| https://git.kernel.org/stable/c/5134556c9be582793… | |
| https://git.kernel.org/stable/c/25e97f7b1866e6b85… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
f2d38e77aa5f3effc143e7dd24da8acf02925958 , < 5f352a56f0e607e6ff539cbf12156bfd8af232be
(git)
Affected: 1351551aa9058e07a20a27a158270cf84fcde621 , < 6a27762340ad08643de3bc17fe1646ea489ca2e2 (git) Affected: c02421992505c95c7f3c9ad59ee35e22eac60988 , < 2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d (git) Affected: d9ba36c22a7bb09d6bac4cc2f243eff05da53f43 , < 55410a9144c76ecda126e6cdec556dfcd8f343b2 (git) Affected: ac6725a634f7e8c0330610a8527f20c730b61115 , < 116b9c002c894097adc2b8684db2d1da4229ed46 (git) Affected: 348d446762e7c70778df8bafbdf3fa0df2123f58 , < fd269a0435f8e9943b7a57c5a59688848d42d449 (git) Affected: a2a9339e1c9deb7e1e079e12e27a0265aea8421a , < 5134556c9be582793f30695c09d18a26fe1ff2d7 (git) Affected: a2a9339e1c9deb7e1e079e12e27a0265aea8421a , < 25e97f7b1866e6b8503be349eeea44bb52d661ce (git) Affected: d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284 (git) Affected: 4.14.313 , < 4.14.316 (semver) Affected: 4.19.281 , < 4.19.284 (semver) Affected: 5.4.241 , < 5.4.244 (semver) Affected: 5.10.178 , < 5.10.181 (semver) Affected: 5.15.108 , < 5.15.113 (semver) Affected: 6.1.25 , < 6.1.30 (semver) Affected: 6.2.12 , < 6.3 (semver) |
|
| Linux | Linux |
Affected:
6.3
Unaffected: 0 , < 6.3 (semver) Unaffected: 4.14.316 , ≤ 4.14.* (semver) Unaffected: 4.19.284 , ≤ 4.19.* (semver) Unaffected: 5.4.244 , ≤ 5.4.* (semver) Unaffected: 5.10.181 , ≤ 5.10.* (semver) Unaffected: 5.15.113 , ≤ 5.15.* (semver) Unaffected: 6.1.30 , ≤ 6.1.* (semver) Unaffected: 6.3.4 , ≤ 6.3.* (semver) Unaffected: 6.4 , ≤ * (original_commit_for_fix) |
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CVE-2023-53386 (GCVE-0-2023-53386)
Vulnerability from cvelistv5 – Published: 2025-09-18 13:33 – Updated: 2026-08-05 09:13
VLAI
EPSS
VEX
Title
Bluetooth: Fix potential use-after-free when clear keys
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: Fix potential use-after-free when clear keys
Similar to commit c5d2b6fa26b5 ("Bluetooth: Fix use-after-free in
hci_remove_ltk/hci_remove_irk"). We can not access k after kfree_rcu()
call.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-14 18:57 UTC
CWE
- CWE-416 - Use After Free
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/e87da6a0ac6e63145… | |
| https://git.kernel.org/stable/c/942d8cefb022f384d… | |
| https://git.kernel.org/stable/c/94617b736c25091b6… | |
| https://git.kernel.org/stable/c/da19f35868dfbecff… | |
| https://git.kernel.org/stable/c/35cc42f04bc49f065… | |
| https://git.kernel.org/stable/c/3673952cf0c6cf81b… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
d7d41682efc25d58b5bd8b80e85e3c9ce586635c , < e87da6a0ac6e631454e7da53a76aa9fe44aaa5dd
(git)
Affected: d7d41682efc25d58b5bd8b80e85e3c9ce586635c , < 942d8cefb022f384d5424f8b90c7878f3f93726f (git) Affected: d7d41682efc25d58b5bd8b80e85e3c9ce586635c , < 94617b736c25091b60e514e2e7aeafcbbee6b700 (git) Affected: d7d41682efc25d58b5bd8b80e85e3c9ce586635c , < da19f35868dfbecfff4f81166c054d2656cb1be4 (git) Affected: d7d41682efc25d58b5bd8b80e85e3c9ce586635c , < 35cc42f04bc49f0656f6840cb7451b3df6049649 (git) Affected: d7d41682efc25d58b5bd8b80e85e3c9ce586635c , < 3673952cf0c6cf81b06c66a0b788abeeb02ff3ae (git) |
|
| Linux | Linux |
Affected:
5.7
Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.195 , ≤ 5.10.* (semver) Unaffected: 5.15.132 , ≤ 5.15.* (semver) Unaffected: 6.1.53 , ≤ 6.1.* (semver) Unaffected: 6.4.16 , ≤ 6.4.* (semver) Unaffected: 6.5.3 , ≤ 6.5.* (semver) Unaffected: 6.6 , ≤ * (original_commit_for_fix) |
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CVE-2025-39817 (GCVE-0-2025-39817)
Vulnerability from cvelistv5 – Published: 2025-09-16 13:00 – Updated: 2026-08-05 12:05
VLAI
EPSS
VEX
Title
efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare
Summary
In the Linux kernel, the following vulnerability has been resolved:
efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare
Observed on kernel 6.6 (present on master as well):
BUG: KASAN: slab-out-of-bounds in memcmp+0x98/0xd0
Call trace:
kasan_check_range+0xe8/0x190
__asan_loadN+0x1c/0x28
memcmp+0x98/0xd0
efivarfs_d_compare+0x68/0xd8
__d_lookup_rcu_op_compare+0x178/0x218
__d_lookup_rcu+0x1f8/0x228
d_alloc_parallel+0x150/0x648
lookup_open.isra.0+0x5f0/0x8d0
open_last_lookups+0x264/0x828
path_openat+0x130/0x3f8
do_filp_open+0x114/0x248
do_sys_openat2+0x340/0x3c0
__arm64_sys_openat+0x120/0x1a0
If dentry->d_name.len < EFI_VARIABLE_GUID_LEN , 'guid' can become
negative, leadings to oob. The issue can be triggered by parallel
lookups using invalid filename:
T1 T2
lookup_open
->lookup
simple_lookup
d_add
// invalid dentry is added to hash list
lookup_open
d_alloc_parallel
__d_lookup_rcu
__d_lookup_rcu_op_compare
hlist_bl_for_each_entry_rcu
// invalid dentry can be retrieved
->d_compare
efivarfs_d_compare
// oob
Fix it by checking 'guid' before cmp.
Severity
7.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:40 UTC
Assigner
References
11 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/0f63fbabeaaaaaaf5… | |
| https://git.kernel.org/stable/c/794399019301944fd… | |
| https://git.kernel.org/stable/c/568e7761279b99c6d… | |
| https://git.kernel.org/stable/c/d7f5e35e70507d10c… | |
| https://git.kernel.org/stable/c/925599eba46045930… | |
| https://git.kernel.org/stable/c/c2925cd6207079c3f… | |
| https://git.kernel.org/stable/c/71581a82f38e5a4d8… | |
| https://git.kernel.org/stable/c/a6358f8cf64850f3f… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
da27a24383b2b10bf6ebd0db29b325548aafecb4 , < 0f63fbabeaaaaaaf5b742a2f4c1b4590d50bf1f6
(git)
Affected: da27a24383b2b10bf6ebd0db29b325548aafecb4 , < 794399019301944fd6d2e0d7a51b3327e26c410e (git) Affected: da27a24383b2b10bf6ebd0db29b325548aafecb4 , < 568e7761279b99c6daa3002290fd6d8047ddb6d2 (git) Affected: da27a24383b2b10bf6ebd0db29b325548aafecb4 , < d7f5e35e70507d10cbaff5f9e194ed54c4ee14f7 (git) Affected: da27a24383b2b10bf6ebd0db29b325548aafecb4 , < 925599eba46045930b850a98ae594d2e3028ac40 (git) Affected: da27a24383b2b10bf6ebd0db29b325548aafecb4 , < c2925cd6207079c3f4d040d082515db78d63afbf (git) Affected: da27a24383b2b10bf6ebd0db29b325548aafecb4 , < 71581a82f38e5a4d807d71fc1bb59aead80ccf95 (git) Affected: da27a24383b2b10bf6ebd0db29b325548aafecb4 , < a6358f8cf64850f3f27857b8ed8c1b08cfc4685c (git) Affected: 688289c4b745c018b3449b4b4c5a2030083c8eaf (git) Affected: 3.8.2 , < 3.9 (semver) |
|
| Linux | Linux |
Affected:
3.9
Unaffected: 0 , < 3.9 (semver) Unaffected: 5.4.298 , ≤ 5.4.* (semver) Unaffected: 5.10.242 , ≤ 5.10.* (semver) Unaffected: 5.15.191 , ≤ 5.15.* (semver) Unaffected: 6.1.150 , ≤ 6.1.* (semver) Unaffected: 6.6.104 , ≤ 6.6.* (semver) Unaffected: 6.12.45 , ≤ 6.12.* (semver) Unaffected: 6.16.5 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
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"value": "AV:L - The vulnerable `efivarfs_d_compare()` is reached only through local path-lookup syscalls (`openat`/`stat`) against the efivarfs mount at /sys/firmware/efi/efivars. There is no network or remote-peer input path into the dcache lookup for this filesystem.\nAC:L - `efivarfs_d_hash()` makes every name shorter than 36 bytes hash to the same value, so the attacker deterministically constructs the bucket collision and length match rather than guessing them, and both sides of the parallel-lookup race are attacker threads that can retry in a tight loop indefinitely. No condition outside the attacker\u0027s control is required.\nPR:L - The efivarfs root directory is mode 0755 and lookup requires only MAY_EXEC, so any unprivileged local user can issue the two concurrent `openat()` calls; `-\u003elookup` is `simple_lookup` with no name validation and no write permission needed. No capability, and no root, is involved.\nUI:N - The attacker drives both racing lookups themselves with no victim participation. efivarfs being mounted is a default-deployment property of UEFI systems (systemd mounts it at boot), not an action a user must be tricked into performing.\nS:U - The out-of-bounds read stays within kernel slab memory under the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - The negative `guid` is promoted to a ~2^64 `size_t`, giving a length-unbounded read that walks past the `dentry_cache` object into arbitrary adjacent kernel heap memory, and the attacker controls the comparison bytes on both sides so the early-exit point of `memcmp` acts as an oracle on that memory. Per kernel guidance an unbounded OOB read scores High.\nI:N - `efivarfs_d_compare()` performs only `memcmp`/`strncasecmp` reads and writes nothing; a false dentry match that could redirect a lookup to the wrong EFI variable would require ~2^64 consecutive matching bytes, which faults long before it could occur.\nA:H - The KASAN trace in the fix commit documents a slab-out-of-bounds abort, and the unbounded read readily runs off the slab page into unmapped memory, producing an oops or panic (and an immediate panic under KASAN/panic_on_oops). The attacker can retrigger it at will from an unprivileged loop."
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CVE-2025-39841 (GCVE-0-2025-39841)
Vulnerability from cvelistv5 – Published: 2025-09-19 15:26 – Updated: 2026-08-05 12:05
VLAI
EPSS
VEX
Title
scsi: lpfc: Fix buffer free/clear order in deferred receive path
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: lpfc: Fix buffer free/clear order in deferred receive path
Fix a use-after-free window by correcting the buffer release sequence in
the deferred receive path. The code freed the RQ buffer first and only
then cleared the context pointer under the lock. Concurrent paths (e.g.,
ABTS and the repost path) also inspect and release the same pointer under
the lock, so the old order could lead to double-free/UAF.
Note that the repost path already uses the correct pattern: detach the
pointer under the lock, then free it after dropping the lock. The
deferred path should do the same.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:42 UTC
Assigner
References
12 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/ab34084f42ee06a90… | |
| https://git.kernel.org/stable/c/baa39f6ad79d372a6… | |
| https://git.kernel.org/stable/c/95b63d15fce5c54a7… | |
| https://git.kernel.org/stable/c/55658c7501467ca9e… | |
| https://git.kernel.org/stable/c/d96cc9a1b57725930… | |
| https://git.kernel.org/stable/c/367cb5ffd8a8a4c85… | |
| https://git.kernel.org/stable/c/897f64b01c1249ac7… | |
| https://git.kernel.org/stable/c/9dba9a45c348e8460… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://cert-portal.siemens.com/productcert/html/… | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
19 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
472e146d1cf3410a898b49834500fa9e33ac41a2 , < ab34084f42ee06a9028d67c78feafb911d33d111
(git)
Affected: 472e146d1cf3410a898b49834500fa9e33ac41a2 , < baa39f6ad79d372a6ce0aa639fbb2f1578479f57 (git) Affected: 472e146d1cf3410a898b49834500fa9e33ac41a2 , < 95b63d15fce5c54a73bbf195e1aacb5a75b128e2 (git) Affected: 472e146d1cf3410a898b49834500fa9e33ac41a2 , < 55658c7501467ca9ef3bd4453dd920010db8bc13 (git) Affected: 472e146d1cf3410a898b49834500fa9e33ac41a2 , < d96cc9a1b57725930c60b607423759d563b4d900 (git) Affected: 472e146d1cf3410a898b49834500fa9e33ac41a2 , < 367cb5ffd8a8a4c85dc89f55e7fa7cc191425b11 (git) Affected: 472e146d1cf3410a898b49834500fa9e33ac41a2 , < 897f64b01c1249ac730329b83f4f40bab71e86c7 (git) Affected: 472e146d1cf3410a898b49834500fa9e33ac41a2 , < 9dba9a45c348e8460da97c450cddf70b2056deb3 (git) |
|
| Linux | Linux |
Affected:
5.1
Unaffected: 0 , < 5.1 (semver) Unaffected: 5.4.299 , ≤ 5.4.* (semver) Unaffected: 5.10.243 , ≤ 5.10.* (semver) Unaffected: 5.15.192 , ≤ 5.15.* (semver) Unaffected: 6.1.151 , ≤ 6.1.* (semver) Unaffected: 6.6.105 , ≤ 6.6.* (semver) Unaffected: 6.12.46 , ≤ 6.12.* (semver) Unaffected: 6.16.6 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
|
| Siemens | RUGGEDCOM RST2428P |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCH328 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCM324 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCM328 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XCM332 |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRH334 (24 V DC, 8xFO, CC) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (230 V AC, 12xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (230 V AC, 8xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (230V AC, 2x10G, 24xSFP, 8xSFP+) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (24 V DC, 12xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (24 V DC, 8xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (24V DC, 2x10G, 24xSFP, 8xSFP+) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (2x230 V AC, 12xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (2x230 V AC, 8xFO) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SCALANCE XRM334 (2x230V AC, 2x10G, 24xSFP, 8xSFP+) |
Affected:
0 , < V3.3
(custom)
|
|
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
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"value": "AV:N - The vulnerable code is the lpfc NVMe-over-Fibre-Channel target\u0027s receive path, processing FCP command and ABTS frames sent by a remote NVMe-oF initiator peer, directly analogous to nvmet-tcp; FC fabrics are also routable across sites via FCIP/inter-fabric routing and FCoE. Repo precedent (CVE-2026-43414, qla2xxx FC) scores FC-peer-triggered driver memory corruption as Network.\nAC:L - The remote initiator controls both sides of the race \u2014 it forces the deferred path by flooding the queue past its fod count (-EOVERFLOW) and drives lpfc_nvmet_ctxbuf_post() concurrently by sending ABTS for the same exchange \u2014 and can retry at FC line rate until the unlocked free/clear window is hit.\nPR:N - NVMe/FC provides no transport authentication and no TLS; hostnqn-based allow-lists are an authorization filter that a fabric-attached attacker can spoof, and ABTS frames reaching lpfc_nvmet_rcv_unsol_abort() require no established association at all. No privileges on the target host are needed.\nUI:N - The race is triggered entirely by inbound FC frames processed asynchronously in the driver\u0027s interrupt/completion and workqueue contexts. No administrator or user action on the target system is required.\nS:U - The double-free and use-after-free corrupt kernel heap and DMA-pool state within the target host\u0027s own kernel security authority. No VM, IOMMU, or sandbox boundary is crossed.\nC:H - The freed rqb_dmabuf is re-read after kfree() (rqb_entry-\u003ehrq-\u003erqbp, hbuf.phys/dbuf.phys), and the double dma_pool_free() lets the same DMA buffer be handed to two live exchanges, so one initiator\u0027s data lands in another\u0027s buffer. Heap grooming around the freed slab object yields an arbitrary-read primitive.\nI:H - lpfc_rq_buf_free() performs a list_del() write into the freed object and re-posts stale DMA addresses to the hardware RQ, causing the HBA to DMA attacker-supplied FC frame content into freed/reallocated kernel memory \u2014 a remote, attacker-controlled kernel write primitive, plus double-free-based heap control.\nA:H - The double kfree()/dma_pool_free() and freed-list corruption reliably produce slab corruption, BUG_ON in the allocator, or an oops in the interrupt-context completion handler, panicking the storage target host."
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CVE-2025-39849 (GCVE-0-2025-39849)
Vulnerability from cvelistv5 – Published: 2025-09-19 15:26 – Updated: 2026-08-05 12:05
VLAI
EPSS
VEX
Title
wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
Summary
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
If the ssid->datalen is more than IEEE80211_MAX_SSID_LEN (32) it would
lead to memory corruption so add some bounds checking.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:41 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/8e751d46336205abc… | |
| https://git.kernel.org/stable/c/e472f59d02c82b511… | |
| https://git.kernel.org/stable/c/31229145e6ba5ace3… | |
| https://git.kernel.org/stable/c/5cb7cab7adf9b1e6a… | |
| https://git.kernel.org/stable/c/62b635dcd69c4fde7… | |
| https://lists.debian.org/debian-lts-announce/2025… | |
| https://cert-portal.siemens.com/productcert/html/… |
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
dd43f8f90206054e7da7593de0a334fb2cd0ea88 , < 8e751d46336205abc259ed3990e850a9843fb649
(git)
Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < e472f59d02c82b511bc43a3f96d62ed08bf4537f (git) Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < 31229145e6ba5ace3e9391113376fa05b7831ede (git) Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < 5cb7cab7adf9b1e6a99e2081b0e30e9e59d07523 (git) Affected: c38c701851011c94ce3be1ccb3593678d2933fd8 , < 62b635dcd69c4fde7ce1de4992d71420a37e51e3 (git) Affected: bf3c348c5fdcf00a7eeed04a1b83e454d2dca2e5 (git) Affected: 6.1.16 , < 6.1.151 (semver) Affected: 6.2.3 , < 6.3 (semver) |
|
| Linux | Linux |
Affected:
6.3
Unaffected: 0 , < 6.3 (semver) Unaffected: 6.1.151 , ≤ 6.1.* (semver) Unaffected: 6.6.105 , ≤ 6.6.* (semver) Unaffected: 6.12.46 , ≤ 6.12.* (semver) Unaffected: 6.16.6 , ≤ 6.16.* (semver) Unaffected: 6.17 , ≤ * (original_commit_for_fix) |
|
| Siemens | SIMATIC CN 4100 |
Affected:
0 , < V5.0
(custom)
|
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()\n\nIf the ssid-\u003edatalen is more than IEEE80211_MAX_SSID_LEN (32) it would\nlead to memory corruption so add some bounds checking."
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"value": "AV:A - The overflow length and contents come straight from the SSID element of an 802.11 beacon/probe response stored in the cfg80211 BSS cache, so the attacker only needs to operate a rogue AP or inject frames within radio range of the victim station. This is the standard WiFi frame-injection adjacent-network vector.\nAC:L - The attacker fully controls every precondition \u2014 the rogue AP\u0027s per-link beacon contents, the SSID element length (up to 255), the link IDs, and which link is used for association \u2014 and can force (re)association with deauthentication frames. No condition lies outside the attacker\u0027s control.\nPR:N - No credentials or account on the victim system are required; the code runs during association processing on the client, triggered purely by frames the attacker transmits. An open/evil-twin AP suffices.\nUI:N - Association and roaming are performed automatically by the WiFi stack for remembered and open networks, and an attacker can force reassociation with deauth frames, so no deliberate victim action is needed.\nS:U - The corruption is confined to kernel heap memory belonging to the same kernel security authority; no VM, IOMMU, or sandbox boundary is crossed.\nC:H - `wdev-\u003eu.client.ssid_len` is set to the full unclamped datalen, so `nl80211.c:4530` copies up to 223 bytes of adjacent kernel heap out to userspace via NL80211_ATTR_SSID, and the write primitive over BSS pointers enables broader disclosure.\nI:H - An out-of-bounds write of up to 223 fully attacker-controlled bytes overwrites `wdev-\u003elinks[]`, including `client.current_bss` pointers that are later dereferenced and refcount-decremented, yielding a controlled-pointer primitive suitable for control-flow hijacking.\nA:H - Corrupting the `wdev-\u003elinks[]` BSS pointers and surrounding `ieee80211_sub_if_data` state leads to bogus pointer dereferences in `cfg80211_wdev_release_bsses()` and kernel panic; heap overflow reliably crashes the system."
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Loading…
Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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