CVE-2022-48943
published 2024-08-22CVE-2022-48943: In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic, when a…
PriorityP337high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.24%
15.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
KVM: x86/mmu: make apf token non-zero to fix bug
In current async pagefault logic, when a page is ready, KVM relies on
kvm_arch_can_dequeue_async_page_present() to determine whether to deliver
a READY event to the Guest. This function test token value of struct
kvm_vcpu_pv_apf_data, which must be reset to zero by Guest kernel when a
READY event is finished by Guest. If value is zero meaning that a READY
event is done, so the KVM can deliver another.
But the kvm_arch_setup_async_pf() may produce a valid token with zero
value, which is confused with previous mention and may lead the loss of
this READY event.
This bug may cause task blocked forever in Guest:
INFO: task stress:7532 blocked for more than 1254 seconds.
Not tainted 5.10.0 #16
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:stress state:D stack: 0 pid: 7532 ppid: 1409
flags:0x00000080
Call Trace:
__schedule+0x1e7/0x650
schedule+0x46/0xb0
kvm_async_pf_task_wait_schedule+0xad/0xe0
? exit_to_user_mode_prepare+0x60/0x70
__kvm_handle_async_pf+0x4f/0xb0
? asm_exc_page_fault+0x8/0x30
exc_page_fault+0x6f/0x110
? asm_exc_page_fault+0x8/0x30
asm_exc_page_fault+0x1e/0x30
RIP: 0033:0x402d00
RSP: 002b:00007ffd31912500 EFLAGS: 00010206
RAX: 0000000000071000 RBX: ffffffffffffffff RCX: 00000000021a32b0
RDX: 000000000007d011 RSI: 000000000007d000 RDI: 00000000021262b0
RBP: 00000000021262b0 R08: 0000000000000003 R09: 0000000000000086
R10: 00000000000000eb R11: 00007fefbdf2baa0 R12: 0000000000000000
R13: 0000000000000002 R14: 000000000007d000 R15: 0000000000001000
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.16.12-1 (bookworm) | linux 5.16.12-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 2635b5c4a0e407b84f68e188c719f28ba0e9ae1b < 72fdfc75d4217b32363cc80def3de2cb3fef3f02 | 72fdfc75d4217b32363cc80def3de2cb3fef3f02 |
| linux | linux | >= 2635b5c4a0e407b84f68e188c719f28ba0e9ae1b < 4c3644b6c96c5daa5149e5abddc07234eea47c7c | 4c3644b6c96c5daa5149e5abddc07234eea47c7c |
| linux | linux | >= 2635b5c4a0e407b84f68e188c719f28ba0e9ae1b < 62040f5cd7d937de547836e747b6aa8212fec573 | 62040f5cd7d937de547836e747b6aa8212fec573 |
| linux | linux | >= 2635b5c4a0e407b84f68e188c719f28ba0e9ae1b < 6f3c1fc53d86d580d8d6d749c4af23705e4f6f79 | 6f3c1fc53d86d580d8d6d749c4af23705e4f6f79 |
| linux | linux_kernel | < 5.10.103 | 5.10.103 |
| linux | linux_kernel | >= 0 < 5.10.103-1 | 5.10.103-1 |
| linux | linux_kernel | >= 0 < 5.16.12-1 | 5.16.12-1 |
| linux | linux_kernel | >= 0 < 5.16.12-1 | 5.16.12-1 |
| linux | linux_kernel | >= 0 < 5.16.12-1 | 5.16.12-1 |
| linux | linux_kernel | >= 0 < 5.4.0-202.222 | 5.4.0-202.222 |
| linux | linux_kernel | >= 0 < 4.4.0-261.295 | 4.4.0-261.295 |
| linux | linux_kernel | >= 0 < 4.15.0-231.243 | 4.15.0-231.243 |
| linux | linux_kernel | >= 5.11 < 5.15.26 | 5.15.26 |
| linux | linux_kernel | >= 5.16 < 5.16.12 | 5.16.12 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-01-14·CVSS 4.7
CVE-2024-53057 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- SCSI subsystem;
- TTY drivers;
- BTRFS file system;
- Ext4 fi
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-01-09·CVSS 4.7
CVE-2024-46724 [MEDIUM] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- SCSI subsystem;
- TTY drivers;
- BTRFS file system;
- Ext4 fi
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2025-01-06·CVSS 5.5
CVE-2023-52497 [MEDIUM] Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) 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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-
Ubuntu
Linux kernel (IoT) vulnerabilities
vendor_ubuntu·2024-12-20·CVSS 5.5
CVE-2023-52497 [MEDIUM] Linux kernel (IoT) vulnerabilities
Title: Linux kernel (IoT) 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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-3853
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-12-17·CVSS 5.5
CVE-2023-52497 [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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-38538,
CVE
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2024-12-17·CVSS 5.5
CVE-2023-52497 [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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-3853
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-12-12·CVSS 5.5
CVE-2023-52488 [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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-38538,
CVE
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-12-10·CVSS 5.5
CVE-2024-41095 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Lyu Tao discovered that the NFS implementation in the Linux kernel did not
properly handle requests to open a directory on a regular file. A local
attacker could use this to expose sensitive information (kernel memory).
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:
- x86 architecture;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- MTD block device drivers;
- Network drivers;
- Device tree and open firmware driver;
- SCSI subsystem;
- USB Serial drivers;
- BTRFS file system;
- File
Ubuntu
Linux kernel (Oracle) vulnerabilities
vendor_ubuntu·2024-11-25·CVSS 7.8
CVE-2024-42240 [HIGH] Linux kernel (Oracle) vulnerabilities
Title: Linux kernel (Oracle) 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;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- Network drivers;
- Device tree and open firmware driver;
- SCSI drivers;
- Greybus lights staging drivers;
- BTRFS file system;
- File systems infrastructure;
- F2FS file system;
- JFS file system;
- NILFS2 file system;
- Netfilter;
- Memory management;
- Ethernet bridge;
- I
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2024-11-20·CVSS 7.8
CVE-2024-44998 [HIGH] 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;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- Network drivers;
- Device tree and open firmware driver;
- SCSI drivers;
- Greybus lights staging drivers;
- BTRFS file system;
- File systems infrastructure;
- F2FS file system;
- JFS file system;
- NILFS2 file system;
- Netfilter;
- Memory management;
- Ethernet bridge;
- IP
Ubuntu
Linux kernel vulnerability
vendor_ubuntu·2024-11-19
CVE-2022-48943 Linux kernel vulnerability
Title: Linux kernel vulnerability
Summary: The system could be made to crash under certain conditions.
A security issue was discovered in the Linux kernel.
An attacker could possibly use this to compromise the system.
This update corrects flaws in the following subsystems:
- x86 architecture;
Instructions: After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatica
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-11-19·CVSS 7.8
CVE-2024-43854 [HIGH] 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;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- Network drivers;
- Device tree and open firmware driver;
- SCSI drivers;
- Greybus lights staging drivers;
- BTRFS file system;
- File systems infrastructure;
- F2FS file system;
- JFS file system;
- NILFS2 file system;
- Netfilter;
- Memory management;
- Ethernet bridge;
- IPv6 netwo
Red Hat
kernel: KVM: x86/mmu: make apf token non-zero to fix bug
vendor_redhat·2024-08-22·CVSS 7.8
CVE-2022-48943 [HIGH] CWE-367 kernel: KVM: x86/mmu: make apf token non-zero to fix bug
kernel: KVM: x86/mmu: make apf token non-zero to fix bug
In the Linux kernel, the following vulnerability has been resolved:
KVM: x86/mmu: make apf token non-zero to fix bug
In current async pagefault logic, when a page is ready, KVM relies on
kvm_arch_can_dequeue_async_page_present() to determine whether to deliver
a READY event to the Guest. This function test token value of struct
kvm_vcpu_pv_apf_data, which must be reset to zero by Guest kernel when a
READY event is finished by Guest. If value is zero meaning that a READY
event is done, so the KVM can deliver another.
But the kvm_arch_setup_async_pf() may produce a valid token with zero
value, which is confused with previous mention and may lead the loss of
this READY event.
This bug may cause task blocked forever in Guest:
INFO: task
Debian
CVE-2022-48943: linux - In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mm...
vendor_debian·2022·CVSS 7.8
CVE-2022-48943 [HIGH] CVE-2022-48943: linux - In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mm...
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic, when a page is ready, KVM relies on kvm_arch_can_dequeue_async_page_present() to determine whether to deliver a READY event to the Guest. This function test token value of struct kvm_vcpu_pv_apf_data, which must be reset to zero by Guest kernel when a READY event is finished by Guest. If value is zero meaning that a READY event is done, so the KVM can deliver another. But the kvm_arch_setup_async_pf() may produce a valid token with zero value, which is confused with previous mention and may lead the loss of this READY event. This bug may cause task blocked forever in Guest: INFO: task stress:7532 blocked for more than 1254 seconds. Not taint
OSV
linux-azure-5.4 vulnerabilities
osv·2025-01-14·CVSS 4.7
CVE-2022-38096 [MEDIUM] linux-azure-5.4 vulnerabilities
linux-azure-5.4 vulnerabilities
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- SCSI subsystem;
- TTY drivers;
- BTRFS file system;
- Ext4 file system;
- EROFS file system;
- F2FS file system;
- File systems infrastruct
OSV
linux-azure vulnerabilities
osv·2025-01-09·CVSS 4.7
CVE-2022-38096 [MEDIUM] linux-azure vulnerabilities
linux-azure vulnerabilities
Ziming Zhang discovered that the DRM driver for VMware Virtual GPU did not
properly handle certain error conditions, leading to a NULL pointer
dereference. A local attacker could possibly trigger this vulnerability to
cause a denial of service. (CVE-2022-38096)
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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- SCSI subsystem;
- TTY drivers;
- BTRFS file system;
- Ext4 file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
OSV
linux-raspi-5.4 vulnerabilities
osv·2025-01-06·CVSS 5.5
[MEDIUM] linux-raspi-5.4 vulnerabilities
linux-raspi-5.4 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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-38538,
CVE-2021-47501, CVE-2024-42068, CVE-2024-26947, CVE-2024-46724,
CVE-2024-
OSV
linux-iot vulnerabilities
osv·2024-12-20·CVSS 5.5
[MEDIUM] linux-iot vulnerabilities
linux-iot 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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-38538,
CVE-2021-47501, CVE-2024-42068, CVE-2024-26947, CVE-2024-46724,
CVE-2024-36968,
OSV
linux-aws, linux-aws-5.4 vulnerabilities
osv·2024-12-17·CVSS 5.5
[MEDIUM] linux-aws, linux-aws-5.4 vulnerabilities
linux-aws, linux-aws-5.4 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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-38538,
CVE-2021-47501, CVE-2024-42068, CVE-2024-26947, CVE-2024-46724,
OSV
linux-bluefield, linux-oracle, linux-oracle-5.4 vulnerabilities
osv·2024-12-17·CVSS 5.5
[MEDIUM] linux-bluefield, linux-oracle, linux-oracle-5.4 vulnerabilities
linux-bluefield, linux-oracle, linux-oracle-5.4 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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE-2024-36953, CVE-2024-38538,
CVE-2021-47501, CVE-2024-42068, CVE-2024-
OSV
linux, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-raspi, linux-xilinx-zynqmp vulnerabilities
osv·2024-12-12·CVSS 5.5
[MEDIUM] linux, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-raspi, linux-xilinx-zynqmp vulnerabilities
linux, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-kvm, linux-raspi, linux-xilinx-zynqmp 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:
- ARM32 architecture;
- ARM64 architecture;
- S390 architecture;
- x86 architecture;
- Power management core;
- GPU drivers;
- InfiniBand drivers;
- Network drivers;
- S/390 drivers;
- TTY drivers;
- BTRFS file system;
- EROFS file system;
- F2FS file system;
- File systems infrastructure;
- BPF subsystem;
- Socket messages infrastructure;
- Bluetooth subsystem;
- Ethernet bridge;
- Networking core;
- IPv4 networking;
- SELinux security module;
(CVE-2022-48938, CVE-2024-42156, CVE
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
osv·2024-12-10·CVSS 5.5
[MEDIUM] linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
linux, linux-aws, linux-kvm, linux-lts-xenial vulnerabilities
Lyu Tao discovered that the NFS implementation in the Linux kernel did not
properly handle requests to open a directory on a regular file. A local
attacker could use this to expose sensitive information (kernel memory).
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:
- x86 architecture;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- MTD block device drivers;
- Network drivers;
- Device tree and open firmware driver;
- SCSI subsystem;
- USB Serial drivers;
- BTRFS file system;
- File systems infrastructure;
- F2FS file sys
OSV
linux-oracle vulnerabilities
osv·2024-11-25·CVSS 7.8
[HIGH] linux-oracle vulnerabilities
linux-oracle 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;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- Network drivers;
- Device tree and open firmware driver;
- SCSI drivers;
- Greybus lights staging drivers;
- BTRFS file system;
- File systems infrastructure;
- F2FS file system;
- JFS file system;
- NILFS2 file system;
- Netfilter;
- Memory management;
- Ethernet bridge;
- IPv6 networking;
- IUCV driver;
- Logical Link layer;
- MAC80211 subsystem;
- NFC s
OSV
linux-azure vulnerabilities
osv·2024-11-20·CVSS 7.8
[HIGH] linux-azure vulnerabilities
linux-azure 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;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- Network drivers;
- Device tree and open firmware driver;
- SCSI drivers;
- Greybus lights staging drivers;
- BTRFS file system;
- File systems infrastructure;
- F2FS file system;
- JFS file system;
- NILFS2 file system;
- Netfilter;
- Memory management;
- Ethernet bridge;
- IPv6 networking;
- IUCV driver;
- Logical Link layer;
- MAC80211 subsystem;
- NFC su
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities
osv·2024-11-19·CVSS 7.8
[HIGH] linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle vulnerabilities
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-gcp, linux-gcp-4.15, linux-hwe, linux-kvm, linux-oracle 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;
- S390 architecture;
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- ATM drivers;
- Device frequency scaling framework;
- GPU drivers;
- Hardware monitoring drivers;
- VMware VMCI Driver;
- Network drivers;
- Device tree and open firmware driver;
- SCSI drivers;
- Greybus lights staging drivers;
- BTRFS file system;
- File systems infrastructure;
- F2FS file system;
- JFS file system;
- NILFS2 file system;
- Netfilter;
- Memory man
OSV
CVE-2022-48943: In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic,
osv·2024-08-22·CVSS 7.8
CVE-2022-48943 [HIGH] CVE-2022-48943: In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic,
In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: make apf token non-zero to fix bug In current async pagefault logic, when a page is ready, KVM relies on kvm_arch_can_dequeue_async_page_present() to determine whether to deliver a READY event to the Guest. This function test token value of struct kvm_vcpu_pv_apf_data, which must be reset to zero by Guest kernel when a READY event is finished by Guest. If value is zero meaning that a READY event is done, so the KVM can deliver another. But the kvm_arch_setup_async_pf() may produce a valid token with zero value, which is confused with previous mention and may lead the loss of this READY event. This bug may cause task blocked forever in Guest: INFO: task stress:7532 blocked for more than 1254 seconds. Not taint
GHSA
GHSA-v5xv-g87f-x57w: In the Linux kernel, the following vulnerability has been resolved:
KVM: x86/mmu: make apf token non-zero to fix bug
In current async pagefault logi
ghsa_unreviewed·2024-08-22
CVE-2022-48943 [HIGH] GHSA-v5xv-g87f-x57w: In the Linux kernel, the following vulnerability has been resolved:
KVM: x86/mmu: make apf token non-zero to fix bug
In current async pagefault logi
In the Linux kernel, the following vulnerability has been resolved:
KVM: x86/mmu: make apf token non-zero to fix bug
In current async pagefault logic, when a page is ready, KVM relies on
kvm_arch_can_dequeue_async_page_present() to determine whether to deliver
a READY event to the Guest. This function test token value of struct
kvm_vcpu_pv_apf_data, which must be reset to zero by Guest kernel when a
READY event is finished by Guest. If value is zero meaning that a READY
event is done, so the KVM can deliver another.
But the kvm_arch_setup_async_pf() may produce a valid token with zero
value, which is confused with previous mention and may lead the loss of
this READY event.
This bug may cause task blocked forever in Guest:
INFO: task stress:7532 blocked for more than 1254 seconds.
Not ta
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-08-22
Published