CVE-2025-40194
published 2025-11-12CVE-2025-40194: In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The…
PriorityP421high7.8
EPSS
0.20%
9.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
The cpufreq_cpu_put() call in update_qos_request() takes place too early
because the latter subsequently calls freq_qos_update_request() that
indirectly accesses the policy object in question through the QoS request
object passed to it.
Fortunately, update_qos_request() is called under intel_pstate_driver_lock,
so this issue does not matter for changing the intel_pstate operation
mode, but it theoretically can cause a crash to occur on CPU device hot
removal (which currently can only happen in virt, but it is formally
supported nevertheless).
Address this issue by modifying update_qos_request() to drop the
reference to the policy later.
Affected
32 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.158-1 (bookworm) | linux 6.1.158-1 (bookworm) |
| debian | linux-6.1 | < linux 6.1.158-1 (bookworm) | linux 6.1.158-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < 15ac9579ebdaf22a37d7f60b3a8efc1029732ef9 | 15ac9579ebdaf22a37d7f60b3a8efc1029732ef9 |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < bc26564bcc659beb6d977cd6eb394041ec2f2851 | bc26564bcc659beb6d977cd6eb394041ec2f2851 |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4 | ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4 |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < 0a58d3e77b22b087a57831c87cafd360e144a5bd | 0a58d3e77b22b087a57831c87cafd360e144a5bd |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < 69a18ff6c60e8e113420f15355fad862cb45d38e | 69a18ff6c60e8e113420f15355fad862cb45d38e |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3 | ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3 |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < 57e4a6aadf12578b96a038373cffd54b3a58b092 | 57e4a6aadf12578b96a038373cffd54b3a58b092 |
| linux | linux | >= da5c504c7aae96db68c4b38e2564a88e91842d89 < 69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467 | 69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467 |
| linux | linux_kernel | >= 0 < 5.10.247-1 | 5.10.247-1 |
| linux | linux_kernel | >= 0 < 6.1.158-1 | 6.1.158-1 |
| linux | linux_kernel | >= 0 < 6.12.57-1 | 6.12.57-1 |
| linux | linux_kernel | >= 0 < 6.17.6-1 | 6.17.6-1 |
| linux | linux_kernel | >= 0 < 5.15.0-170.180 | 5.15.0-170.180 |
| linux | linux_kernel | >= 0 < 6.8.0-106.106 | 6.8.0-106.106 |
| linux | linux_kernel | >= 0 < 6.17.0-14.14 | 6.17.0-14.14 |
| linux | linux_kernel | >= 5.11.0 < 5.15.195 | 5.15.195 |
| linux | linux_kernel | >= 5.16.0 < 6.1.157 | 6.1.157 |
| linux | linux_kernel | >= 5.4.0 < 5.4.301 | 5.4.301 |
| linux | linux_kernel | >= 5.5.0 < 5.10.246 | 5.10.246 |
| linux | linux_kernel | >= 6.13.0 < 6.17.4 | 6.17.4 |
| linux | linux_kernel | >= 6.2.0 < 6.6.113 | 6.6.113 |
| linux | linux_kernel | >= 6.7.0 < 6.12.54 | 6.12.54 |
CVSS provenance
osv7.8HIGH
vendor_ubuntu7.8HIGH
vendor_redhat5.8MEDIUM
vendor_msrc5.5MEDIUM
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causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
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Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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An attacker could possibly use these to compromise the system.
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- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
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- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
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- Hardware random number generator core;
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This update corrects flaws in the following subsystems:
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- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
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- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
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- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
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This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
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- NVME drivers;
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This update corrects flaws in the following subsystems:
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- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
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This update corrects flaws in the following subsystems:
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- MIPS architecture;
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- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
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This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
- Performance monitor drivers;
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Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardware crypto device drivers;
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Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
- Pe
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Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
-
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Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
-
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Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Trans
OSV
linux, linux-raspi, linux-realtime vulnerabilities
osv·2026-02-12
linux, linux-raspi, linux-realtime vulnerabilities
linux, linux-raspi, linux-realtime vulnerabilities
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardwar
GHSA
GHSA-8qw2-hj59-c25x: In the Linux kernel, the following vulnerability has been resolved:
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
The cp
ghsa_unreviewed·2025-11-13
CVE-2025-40194 GHSA-8qw2-hj59-c25x: In the Linux kernel, the following vulnerability has been resolved:
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
The cp
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
The cpufreq_cpu_put() call in update_qos_request() takes place too early
because the latter subsequently calls freq_qos_update_request() that
indirectly accesses the policy object in question through the QoS request
object passed to it.
Fortunately, update_qos_request() is called under intel_pstate_driver_lock,
so this issue does not matter for changing the intel_pstate operation
mode, but it theoretically can cause a crash to occur on CPU device hot
removal (which currently can only happen in virt, but it is formally
supported nevertheless).
Address this issue by modifying update_qos_request() to drop the
reference to the policy later.
OSV
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
osv·2025-11-12
CVE-2025-40194 cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
The cpufreq_cpu_put() call in update_qos_request() takes place too early
because the latter subsequently calls freq_qos_update_request() that
indirectly accesses the policy object in question through the QoS request
object passed to it.
Fortunately, update_qos_request() is called under intel_pstate_driver_lock,
so this issue does not matter for changing the intel_pstate operation
mode, but it theoretically can cause a crash to occur on CPU device hot
removal (which currently can only happen in virt, but it is formally
supported nevertheless).
Address this issue by modifyin
OSV
CVE-2025-40194: In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The cpuf
osv·2025-11-12
CVE-2025-40194 CVE-2025-40194: In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The cpuf
In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The cpufreq_cpu_put() call in update_qos_request() takes place too early because the latter subsequently calls freq_qos_update_request() that indirectly accesses the policy object in question through the QoS request object passed to it. Fortunately, update_qos_request() is called under intel_pstate_driver_lock, so this issue does not matter for changing the intel_pstate operation mode, but it theoretically can cause a crash to occur on CPU device hot removal (which currently can only happen in virt, but it is formally supported nevertheless). Address this issue by modifying update_qos_request() to drop the reference to the policy later.
Ubuntu
Linux kernel (Xilinx) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-68288 [MEDIUM] Linux kernel (Xilinx) vulnerabilities
Title: Linux kernel (Xilinx) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation,
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 7.8
CVE-2025-22058 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corre
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-04-13·CVSS 7.8
CVE-2024-53114 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corre
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2026-04-09·CVSS 7.8
CVE-2025-21833 [HIGH] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2026-04-09·CVSS 7.8
CVE-2025-71125 [HIGH] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-04-01·CVSS 7.8
CVE-2025-38129 [HIGH] Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- PowerPC architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-04-01
CVE-2025-40301 Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architect
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-03-25·CVSS 3.2
CVE-2025-40068 [LOW] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
It was discovered that improper initialization of CPU cache memory could
allow a local attacker with hypervisor access to overwrite SEV-SNP guest
memory resulting in loss of data integrity. (CVE-2024-36331)
Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos,
and Flavien Solt discovered that
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-03-25
CVE-2025-40245 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
-
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2026-03-23
CVE-2025-40068 Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Su
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2026-03-17
CVE-2025-40245 Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-40068 Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- S
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-40245 Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
-
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-39981 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Spar
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-02-24
CVE-2025-40175 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framewor
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities
vendor_ubuntu·2026-02-19·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (Intel IoTG) vulnerabilities
Title: Linux kernel (Intel IoTG) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-19·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-17
CVE-2025-40304 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and dr
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2026-02-17
CVE-2025-68242 Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-02-17·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
-
Ubuntu
Linux kernel (NVIDIA Tegra IGX) vulnerabilities
vendor_ubuntu·2026-02-17·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (NVIDIA Tegra IGX) vulnerabilities
Title: Linux kernel (NVIDIA Tegra IGX) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device d
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2026-02-13·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Net
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2026-02-12
CVE-2025-68242 Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework
Ubuntu
Linux kernel (NVIDIA Tegra) vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (NVIDIA Tegra) vulnerabilities
Title: Linux kernel (NVIDIA Tegra) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drive
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12
CVE-2025-40304 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and dr
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Ne
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Red Hat
kernel: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
vendor_redhat·2025-11-12·CVSS 5.8
CVE-2025-40194 [MEDIUM] CWE-667 kernel: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
kernel: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
In the Linux kernel, the following vulnerability has been resolved:
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
The cpufreq_cpu_put() call in update_qos_request() takes place too early
because the latter subsequently calls freq_qos_update_request() that
indirectly accesses the policy object in question through the QoS request
object passed to it.
Fortunately, update_qos_request() is called under intel_pstate_driver_lock,
so this issue does not matter for changing the intel_pstate operation
mode, but it theoretically can cause a crash to occur on CPU device hot
removal (which currently can only happen in virt, but it is formally
supported nevertheless).
Address this issue by modi
Microsoft
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
vendor_msrc·2025-11-11·CVSS 5.5
CVE-2025-40194 [MEDIUM] cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request()
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade
Debian
CVE-2025-40194: linux - In the Linux kernel, the following vulnerability has been resolved: cpufreq: in...
vendor_debian·2025
CVE-2025-40194 CVE-2025-40194: linux - In the Linux kernel, the following vulnerability has been resolved: cpufreq: in...
In the Linux kernel, the following vulnerability has been resolved: cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() The cpufreq_cpu_put() call in update_qos_request() takes place too early because the latter subsequently calls freq_qos_update_request() that indirectly accesses the policy object in question through the QoS request object passed to it. Fortunately, update_qos_request() is called under intel_pstate_driver_lock, so this issue does not matter for changing the intel_pstate operation mode, but it theoretically can cause a crash to occur on CPU device hot removal (which currently can only happen in virt, but it is formally supported nevertheless). Address this issue by modifying update_qos_request() to drop the reference to the policy later.
Scope: local
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0a58d3e77b22b087a57831c87cafd360e144a5bdhttps://git.kernel.org/stable/c/15ac9579ebdaf22a37d7f60b3a8efc1029732ef9https://git.kernel.org/stable/c/57e4a6aadf12578b96a038373cffd54b3a58b092https://git.kernel.org/stable/c/69a18ff6c60e8e113420f15355fad862cb45d38ehttps://git.kernel.org/stable/c/69e5d50fcf4093fb3f9f41c4f931f12c2ca8c467https://git.kernel.org/stable/c/ad4e8f9bdbef11a19b7cb93e7f313bf59bdcc3b4https://git.kernel.org/stable/c/ba63d4e9857a72a89e71a4eff9f2cc8c283e94c3https://git.kernel.org/stable/c/bc26564bcc659beb6d977cd6eb394041ec2f2851
2025-11-12
Published