RHSA-2025:21667

Vulnerability from csaf_redhat - Published: 2025-11-18 09:02 - Updated: 2026-11-09 22:46
Summary
Red Hat Security Advisory: kernel security update
Severity
Moderate
Notes
Topic: An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support. 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: ALSA: bcd2000: Fix a UAF bug on the error path of probing (CVE-2022-50229) * kernel: KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0 (CVE-2022-50228) * kernel: firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails (CVE-2022-50087) * kernel: drm/amd/display: clear optc underflow before turn off odm clock (CVE-2022-49969) * kernel: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (CVE-2025-38085) * kernel: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (CVE-2025-38159) * kernel: i40e: fix MMIO write access to an invalid page in i40e_clear_hw (CVE-2025-38200) * kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction (CVE-2025-38211) * kernel: scsi: lpfc: Use memcpy() for BIOS version (CVE-2025-38332) * kernel: drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449) * kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477) * kernel: do_change_type(): refuse to operate on unmounted/not ours mounts (CVE-2025-38498) * kernel: smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527) * kernel: HID: core: Harden s32ton() against conversion to 0 bits (CVE-2025-38556) * kernel: tls: separate no-async decryption request handling from async (CVE-2024-58240) * 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) 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.
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CVE-2022-49969

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: clear optc underflow before turn off odm clock [Why] After ODM clock off, optc underflow bit will be kept there always and clear not work. We need to clear that before clock off. [How] Clear that if have when clock off.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-459 - Incomplete Cleanup
Affected products
Product Identifier Version Remediation
Unresolved product id: BaseOS-8.2.0.Z.AUS:bpftool-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:bpftool-debuginfo-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-0:4.18.0-193.173.1.el8_2.src —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-abi-whitelists-0:4.18.0-193.173.1.el8_2.noarch —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-core-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-core-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-debuginfo-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-devel-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-modules-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debug-modules-extra-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debuginfo-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-debuginfo-common-x86_64-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-devel-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-doc-0:4.18.0-193.173.1.el8_2.noarch —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-modules-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-modules-extra-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-tools-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-tools-debuginfo-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:kernel-tools-libs-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:perf-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:perf-debuginfo-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:python3-perf-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Unresolved product id: BaseOS-8.2.0.Z.AUS:python3-perf-debuginfo-0:4.18.0-193.173.1.el8_2.x86_64 —
Vendor Fix fix
Threats
Impact Moderate
CVE-2022-50087

A flaw was found in the Linux kernel's ARM System Control and Power Interface (SCPI) firmware driver. When an SCPI device initialization probe fails, the driver does not properly clear internal references to memory that was deallocated during the failure. A local attacker could exploit this use-after-free flaw by invoking operations that access the released memory, potentially leading to privilege escalation or causing a denial of service (DoS) through a system crash.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-825 - Expired Pointer Dereference
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2022-50228

A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) subsystem on AMD processors. A local user with permission to manage virtual machines can trigger an internal kernel assertion by injecting an interrupt event while the guest processor's Global Interrupt Flag (GIF) is disabled. This failure causes the host kernel to crash, resulting in a denial of service (DoS).

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-617 - Reachable Assertion
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2022-50229

A flaw was found in the Linux kernel's ALSA (Advanced Linux Sound Architecture) Behringer BCD2000 driver. A local user could exploit this vulnerability to achieve privilege escalation or cause a Denial of Service (DoS) by crashing the system. This issue occurs when device initialization fails during the probing process, improperly freeing active USB communication resources before terminating them, which leads to a use-after-free condition.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 - Use After Free
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2023-53125

A flaw was found in the Linux kernel's smsc75xx USB Ethernet driver. The driver fails to validate the packet length field of incoming network frames against the actual buffer size. An attacker on the local network can exploit this vulnerability by transmitting crafted Ethernet frames, causing the system to read beyond the allocated buffer boundaries. This issue leads to information disclosure by leaking sensitive kernel memory contents.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE-125 - Out-of-bounds Read
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2024-58240

A flaw was found in the Linux kernel's Transport Layer Security (TLS) subsystem. Improper separation between asynchronous and synchronous decryption requests can cause a race condition during socket operations, leading to memory corruption. A remote attacker could exploit this flaw by transmitting network traffic over a TLS connection, potentially resulting in a Denial of Service (DoS) via a system crash or arbitrary code execution.

7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE-416 - Use After Free
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-22026

A flaw was found in the Linux kernel's Network File System daemon (nfsd). A local user could cause a Denial of Service (DoS) or system instability by inducing a resource allocation failure during network service initialization. Because the kernel fails to check the return status when creating entries in the process file system (procfs), subsequent teardown operations attempt to remove uninitialized entries, leading to kernel warnings and cleanup failures.

7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-252 - Unchecked Return Value
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-37797

A flaw was found in the Linux kernel's Hierarchical Fair Service Curve (HFSC) network packet scheduler. A timing discrepancy during traffic class updates with certain child queuing mechanisms can cause an empty queue to be improperly tracked in the scheduler's internal tree. When the affected class is subsequently destroyed, it results in a use-after-free memory flaw. A local attacker could exploit this vulnerability to cause a Denial of Service (DoS) through a system crash or potentially escalate privileges.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 - Use After Free
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38085

A flaw was found in the Linux kernel's hugetlb subsystem. This vulnerability allows a local attacker to cause information disclosure by exploiting a race condition between shared huge page table unsharing and concurrent fast page lookups. Under specific timing conditions, the kernel may traverse memory tables associated with another process, potentially exposing memory mappings belonging to unrelated processes.

7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38159

A flaw was found in the Linux kernel's rtw88 wireless driver. An undersized parameter buffer allocated during Bluetooth and Wi-Fi coexistence operations causes the driver to read data beyond the allocated boundary. A local user capable of modifying coexistence settings can exploit this vulnerability to trigger a Denial of Service (DoS) via a system crash or potentially disclose sensitive kernel memory.

7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38200

A flaw was found in the Linux kernel's i40e network driver. When an attached device supplies malformed responses during driver operations, an integer underflow can occur. This issue leads to an invalid write operation in Memory-Mapped I/O (MMIO) space, which can cause a kernel crash and result in a Denial of Service (DoS).

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-191 - Integer Underflow (Wrap or Wraparound)
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38211

A flaw was found in the Linux kernel's Remote Direct Memory Access (RDMA) subsystem. A local user with access to the RDMA stack can trigger a race condition during connection teardown when connection resources are freed while an active work item is still using them. This issue results in a use-after-free condition, leading to a kernel crash and a Denial of Service (DoS).

7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CWE-416 - Use After Free
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38332

A flaw was found in the Linux kernel's lpfc driver. When handling the storage adapter BIOS version string, string concatenation triggers kernel memory safety checks that detect an unexpected buffer size and force a kernel panic. A local user or hardware initialization event can trigger this issue to crash the system, resulting in a Denial of Service (DoS).

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-170 - Improper Null Termination
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38449

A flaw was found in the Linux kernel's Direct Rendering Manager (DRM) subsystem. A local user with access to the graphics device can cause a denial of service (DoS) by triggering a use-after-free condition. By releasing a Graphics Execution Manager (GEM) buffer handle while it remains attached to an active framebuffer, subsequent display mode-setting operations attempt to access freed memory, causing a kernel crash.

7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
CWE-416 - Use After Free
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38477

A flaw was found in the Linux kernel's Quick Fair Queueing (QFQ) network packet scheduler. A local user with network administration privileges could exploit this vulnerability to cause a Denial of Service (DoS) by crashing the system. The issue is caused by a race condition when network scheduling classes are modified concurrently with status reporting operations, leading to improper memory access.

4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-416 - Use After Free
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38498

A flaw was found in the Linux kernel. A local attacker with mount privileges can cause a Denial of Service (DoS) by altering mount propagation settings on mounts outside of their own mount namespace. Due to missing permission checks in the mount subsystem, the kernel permits operations on mounts belonging to other namespaces, breaking isolation guarantees and disrupting normal system operations.

7.3 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:H
CWE-283 - Unverified Ownership
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38527

A flaw was found in the Linux kernel's SMB (Server Message Block) client. A timing race condition during the unmounting of a network file share can cause memory resources to be prematurely freed while an opportunistic lock break operation is still executing. A local user could exploit this use-after-free vulnerability to crash the system, resulting in a denial of service (DoS), or potentially escalate privileges.

7.0 (High)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-825 - Expired Pointer Dereference
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-38556

A flaw was found in the Linux kernel's Human Interface Device (HID) subsystem. An attacker who connects a specially crafted HID device can trigger an out-of-bounds shift error when the system processes a report field defined with a size of zero bits. This flaw leads to a kernel crash, resulting in a Denial of Service (DoS).

7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 - Out-of-bounds Read
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-39730

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.

7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-125 - Out-of-bounds Read
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Moderate
CVE-2025-39751

This CVE has been marked as Rejected by the assigning CNA.

0.0 (None)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:N
CWE-120 - Buffer Copy without Checking Size of Input
Affected products
Fixed 25 products, the same list as for CVE-2022-49969
Threats
Impact Low
References
URL Category
https://access.redhat.com/errata/RHSA-2025:21667 self
https://access.redhat.com/security/updates/classi… external
https://bugzilla.redhat.com/show_bug.cgi?id=2360224 external
https://bugzilla.redhat.com/show_bug.cgi?id=2363672 external
https://bugzilla.redhat.com/show_bug.cgi?id=2363686 external
https://bugzilla.redhat.com/show_bug.cgi?id=2373460 external
https://bugzilla.redhat.com/show_bug.cgi?id=2373529 external
https://bugzilla.redhat.com/show_bug.cgi?id=2373539 external
https://bugzilla.redhat.com/show_bug.cgi?id=2373635 external
https://bugzilla.redhat.com/show_bug.cgi?id=2375304 external
https://bugzilla.redhat.com/show_bug.cgi?id=2376064 external
https://bugzilla.redhat.com/show_bug.cgi?id=2376392 external
https://bugzilla.redhat.com/show_bug.cgi?id=2376406 external
https://bugzilla.redhat.com/show_bug.cgi?id=2379246 external
https://bugzilla.redhat.com/show_bug.cgi?id=2383519 external
https://bugzilla.redhat.com/show_bug.cgi?id=2383922 external
https://bugzilla.redhat.com/show_bug.cgi?id=2384422 external
https://bugzilla.redhat.com/show_bug.cgi?id=2388928 external
https://bugzilla.redhat.com/show_bug.cgi?id=2389456 external
https://bugzilla.redhat.com/show_bug.cgi?id=2391431 external
https://bugzilla.redhat.com/show_bug.cgi?id=2393731 external
https://bugzilla.redhat.com/show_bug.cgi?id=2394624 external
https://security.access.redhat.com/data/csaf/v2/a… self
https://access.redhat.com/security/cve/CVE-2022-49969 self
https://bugzilla.redhat.com/show_bug.cgi?id=2373635 external
https://www.cve.org/CVERecord?id=CVE-2022-49969 external
https://nvd.nist.gov/vuln/detail/CVE-2022-49969 external
https://lore.kernel.org/linux-cve-announce/202506… external
https://access.redhat.com/security/cve/CVE-2022-50087 self
https://bugzilla.redhat.com/show_bug.cgi?id=2373539 external
https://www.cve.org/CVERecord?id=CVE-2022-50087 external
https://nvd.nist.gov/vuln/detail/CVE-2022-50087 external
https://lore.kernel.org/linux-cve-announce/202506… external
https://access.redhat.com/security/cve/CVE-2022-50228 self
https://bugzilla.redhat.com/show_bug.cgi?id=2373529 external
https://www.cve.org/CVERecord?id=CVE-2022-50228 external
https://nvd.nist.gov/vuln/detail/CVE-2022-50228 external
https://lore.kernel.org/linux-cve-announce/202506… external
https://access.redhat.com/security/cve/CVE-2022-50229 self
https://bugzilla.redhat.com/show_bug.cgi?id=2373460 external
https://www.cve.org/CVERecord?id=CVE-2022-50229 external
https://nvd.nist.gov/vuln/detail/CVE-2022-50229 external
https://lore.kernel.org/linux-cve-announce/202506… external
https://access.redhat.com/security/cve/CVE-2023-53125 self
https://bugzilla.redhat.com/show_bug.cgi?id=2363686 external
https://www.cve.org/CVERecord?id=CVE-2023-53125 external
https://nvd.nist.gov/vuln/detail/CVE-2023-53125 external
https://lore.kernel.org/linux-cve-announce/202505… external
https://access.redhat.com/security/cve/CVE-2024-58240 self
https://bugzilla.redhat.com/show_bug.cgi?id=2391431 external
https://www.cve.org/CVERecord?id=CVE-2024-58240 external
https://nvd.nist.gov/vuln/detail/CVE-2024-58240 external
https://lore.kernel.org/linux-cve-announce/202508… external
https://access.redhat.com/security/cve/CVE-2025-22026 self
https://bugzilla.redhat.com/show_bug.cgi?id=2360224 external
https://www.cve.org/CVERecord?id=CVE-2025-22026 external
https://nvd.nist.gov/vuln/detail/CVE-2025-22026 external
https://lore.kernel.org/linux-cve-announce/202504… external
https://access.redhat.com/security/cve/CVE-2025-37797 self
https://bugzilla.redhat.com/show_bug.cgi?id=2363672 external
https://www.cve.org/CVERecord?id=CVE-2025-37797 external
https://nvd.nist.gov/vuln/detail/CVE-2025-37797 external
https://lore.kernel.org/linux-cve-announce/202505… external
https://access.redhat.com/security/cve/CVE-2025-38085 self
https://bugzilla.redhat.com/show_bug.cgi?id=2375304 external
https://www.cve.org/CVERecord?id=CVE-2025-38085 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38085 external
https://lore.kernel.org/linux-cve-announce/202506… external
https://access.redhat.com/security/cve/CVE-2025-38159 self
https://bugzilla.redhat.com/show_bug.cgi?id=2376064 external
https://www.cve.org/CVERecord?id=CVE-2025-38159 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38159 external
https://lore.kernel.org/linux-cve-announce/202507… external
https://access.redhat.com/security/cve/CVE-2025-38200 self
https://bugzilla.redhat.com/show_bug.cgi?id=2376392 external
https://www.cve.org/CVERecord?id=CVE-2025-38200 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38200 external
https://lore.kernel.org/linux-cve-announce/202507… external
https://access.redhat.com/security/cve/CVE-2025-38211 self
https://bugzilla.redhat.com/show_bug.cgi?id=2376406 external
https://www.cve.org/CVERecord?id=CVE-2025-38211 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38211 external
https://lore.kernel.org/linux-cve-announce/202507… external
https://access.redhat.com/security/cve/CVE-2025-38332 self
https://bugzilla.redhat.com/show_bug.cgi?id=2379246 external
https://www.cve.org/CVERecord?id=CVE-2025-38332 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38332 external
https://lore.kernel.org/linux-cve-announce/202507… external
https://access.redhat.com/security/cve/CVE-2025-38449 self
https://bugzilla.redhat.com/show_bug.cgi?id=2383519 external
https://www.cve.org/CVERecord?id=CVE-2025-38449 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38449 external
https://lore.kernel.org/linux-cve-announce/202507… external
https://access.redhat.com/security/cve/CVE-2025-38477 self
https://bugzilla.redhat.com/show_bug.cgi?id=2383922 external
https://www.cve.org/CVERecord?id=CVE-2025-38477 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38477 external
https://kernelcve.org/list/?q=CVE-2025-38477 external
https://lore.kernel.org/linux-cve-announce/202507… external
https://access.redhat.com/security/cve/CVE-2025-38498 self
https://bugzilla.redhat.com/show_bug.cgi?id=2384422 external
https://www.cve.org/CVERecord?id=CVE-2025-38498 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38498 external
https://lore.kernel.org/linux-cve-announce/202507… external
https://access.redhat.com/security/cve/CVE-2025-38527 self
https://bugzilla.redhat.com/show_bug.cgi?id=2388928 external
https://www.cve.org/CVERecord?id=CVE-2025-38527 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38527 external
https://lore.kernel.org/linux-cve-announce/202508… external
https://access.redhat.com/security/cve/CVE-2025-38556 self
https://bugzilla.redhat.com/show_bug.cgi?id=2389456 external
https://www.cve.org/CVERecord?id=CVE-2025-38556 external
https://nvd.nist.gov/vuln/detail/CVE-2025-38556 external
https://lore.kernel.org/linux-cve-announce/202508… external
https://access.redhat.com/security/cve/CVE-2025-39730 self
https://bugzilla.redhat.com/show_bug.cgi?id=2393731 external
https://www.cve.org/CVERecord?id=CVE-2025-39730 external
https://nvd.nist.gov/vuln/detail/CVE-2025-39730 external
https://lore.kernel.org/linux-cve-announce/202509… external
https://access.redhat.com/security/cve/CVE-2025-39751 self
https://bugzilla.redhat.com/show_bug.cgi?id=2394624 external
https://www.cve.org/CVERecord?id=CVE-2025-39751 external
https://nvd.nist.gov/vuln/detail/CVE-2025-39751 external
https://lore.kernel.org/linux-cve-announce/202509… external
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        "text": "An update for kernel is now available for Red Hat Enterprise Linux 8.2 Advanced Update Support.\n\nRed 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.",
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          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: clear optc underflow before turn off odm clock\n\n[Why]\nAfter ODM clock off, optc underflow bit will be kept there always and clear not work.\nWe need to clear that before clock off.\n\n[How]\nClear that if have when clock off.",
          "title": "Vulnerability description"
        },
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          "text": "kernel: drm/amd/display: clear optc underflow before turn off odm clock",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "This vulnerability is rated as Moderate severity because exploitation requires local access on systems equipped with physical AMD graphics hardware utilizing the amdgpu driver. The issue arises from a failure to clear display timing controller underflow flags prior to disabling the output data mapping clock, which can leave the display controller in an unrecoverable state and trigger a local denial of service. Typical enterprise server deployments and virtual machine instances lacking dedicated AMD GPU pass-through do not load this driver and remain unaffected.",
          "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"
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          "text": "A flaw was found in the Linux kernel\u0027s smsc75xx USB Ethernet driver. The driver fails to validate the packet length field of incoming network frames against the actual buffer size. An attacker on the local network can exploit this vulnerability by transmitting crafted Ethernet frames, causing the system to read beyond the allocated buffer boundaries. This issue leads to information disclosure by leaking sensitive kernel memory contents.",
          "title": "Vulnerability description"
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          "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"
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        {
          "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.",
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          "text": "A flaw was found in the Linux kernel\u0027s Transport Layer Security (TLS) subsystem. Improper separation between asynchronous and synchronous decryption requests can cause a race condition during socket operations, leading to memory corruption. A remote attacker could exploit this flaw by transmitting network traffic over a TLS connection, potentially resulting in a Denial of Service (DoS) via a system crash or arbitrary code execution.",
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          "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.",
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          "title": "Statement"
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        {
          "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.",
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          "text": "A flaw was found in the Linux kernel\u0027s Remote Direct Memory Access (RDMA) subsystem. A local user with access to the RDMA stack can trigger a race condition during connection teardown when connection resources are freed while an active work item is still using them. This issue results in a use-after-free condition, leading to a kernel crash and a Denial of Service (DoS).",
          "title": "Vulnerability description"
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          "text": "kernel: RDMA/iwcm: Fix use-after-free of work objects after cm_id destruction",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "A use-after-free occurs when a cm_id\u0027s last reference is released from within a work item that still depends on it, resulting in a crash in __pwq_activate_work(). This race condition was reproducible via RDMA/siw transport using repeated execution of blktests nvme/061, demonstrating that deallocation of work entries must not occur from within the active work context. The CVSS Privileges Required (PR:L) rating reflects that RDMA stack access is needed, but not full root privileges, to trigger this memory corruption issue. The vulnerability does not lead to information leakage or data corruption, but results in a use-after-free crash within the kernel\u0027s RDMA workqueue processing. Therefore, for the CVSS only availability is impacted and Integrity/Confidentiality are Low (potentially impacted). As the bug causes a kernel panic or crash when triggered, the impact is rated as High on Availability.",
          "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"
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          "text": "A flaw was found in the Linux kernel\u0027s Quick Fair Queueing (QFQ) network packet scheduler. A local user with network administration privileges could exploit this vulnerability to cause a Denial of Service (DoS) by crashing the system. The issue is caused by a race condition when network scheduling classes are modified concurrently with status reporting operations, leading to improper memory access.",
          "title": "Vulnerability description"
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          "text": "kernel: net/sched: sch_qfq: Fix race condition on qfq_aggregate",
          "title": "Vulnerability summary"
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          "text": "This patch fixes a race condition in the QFQ packet scheduler, where concurrent modification and access to cl-\u003eagg may result in a use-after-free or NULL pointer dereference.\nThe bug occurs when qfq_change_class() reassigns the agg pointer while other threads read it in qfq_dump_class() or qfq_delete_class().\nThe fix synchronizes access using sch_tree_lock() and reorders destruction logic to avoid concurrency issues.\nThis issue can be triggered locally by users with CAP_NET_ADMIN privileges and may lead to kernel crashes or denial-of-service.\nAlthough the vulnerability involves a use-after-free, it only results in stale reads of deallocated memory, used in netlink reporting functions.\nThere is no write primitive, function pointer corruption, or kernel state modification, making privilege escalation infeasible in this case.",
          "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.",
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      "threats": [
        {
          "category": "impact",
          "details": "Low"
        }
      ],
      "title": "kernel: Linux kernel ALSA hda/ca0132 buffer overflow"
    }
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • 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.
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