CVE-2024-46762
published 2024-09-18CVE-2024-46762: In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fix possible access to a freed kirqfd instance Nothing prevents simultaneous…
PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
15.7th percentile
In the Linux kernel, the following vulnerability has been resolved:
xen: privcmd: Fix possible access to a freed kirqfd instance
Nothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and
privcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd
created and added to the irqfds_list by privcmd_irqfd_assign() may get
removed by another thread executing privcmd_irqfd_deassign(), while the
former is still using it after dropping the locks.
This can lead to a situation where an already freed kirqfd instance may
be accessed and cause kernel oops.
Use SRCU locking to prevent the same, as is done for the KVM
implementation for irqfds.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.10.11-1 (forky) | linux 6.10.11-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 < e997b357b13a7d95de31681fc54fcc34235fa527 | e997b357b13a7d95de31681fc54fcc34235fa527 |
| linux | linux | >= f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 < 112fd2f02b308564724b8e81006c254d20945c4b | 112fd2f02b308564724b8e81006c254d20945c4b |
| linux | linux | >= f8941e6c4c712948663ec5d7bbb546f1a0f4e3f6 < 611ff1b1ae989a7bcce3e2a8e132ee30e968c557 | 611ff1b1ae989a7bcce3e2a8e132ee30e968c557 |
| linux | linux_kernel | < 6.6.51 | 6.6.51 |
| linux | linux_kernel | >= 0 < 6.10.11-1 | 6.10.11-1 |
| linux | linux_kernel | >= 0 < 6.10.11-1 | 6.10.11-1 |
| linux | linux_kernel | >= 0 < 6.8.0-50.51 | 6.8.0-50.51 |
| linux | linux_kernel | >= 6.7 < 6.10.10 | 6.10.10 |
| msrc | azl3_kernel_6.6.47.1-1_on_azure_linux_3.0 | — | — |
| msrc | azl3_kernel_6.6.51.1-5_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.202.1-1_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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.
OSV
linux-azure, linux-azure-6.8 vulnerabilities
osv·2025-01-09
linux-azure, linux-azure-6.8 vulnerabilities
linux-azure, linux-azure-6.8 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;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring drivers;
- I2C subsystem;
- I3C subsystem;
- IIO subsyste
OSV
linux-hwe-6.8 vulnerabilities
osv·2025-01-06
linux-hwe-6.8 vulnerabilities
linux-hwe-6.8 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;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring drivers;
- I2C subsystem;
- I3C subsystem;
- IIO subsystem;
- InfiniBand
OSV
linux-gkeop vulnerabilities
osv·2024-12-12·CVSS 5.5
CVE-2024-25741 [MEDIUM] linux-gkeop vulnerabilities
linux-gkeop vulnerabilities
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel
did not properly check for the device to be enabled before writing. A local
attacker could possibly use this to cause a denial of service.
(CVE-2024-25741)
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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- Null block device dr
OSV
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities
osv·2024-12-12
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities
linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency 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;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring drivers;
- I2C subsystem;
- I3
OSV
linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oem-6.8, linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities
osv·2024-12-12
linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oem-6.8, linux-oracle, linux-oracle-6.8, linux-raspi vulnerabilities
linux, linux-aws, linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gke, linux-ibm, linux-lowlatency, linux-lowlatency-hwe-6.8, linux-oem-6.8, linux-oracle, linux-oracle-6.8, linux-raspi 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;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Q
GHSA
GHSA-4366-c9hw-r9qg: In the Linux kernel, the following vulnerability has been resolved:
xen: privcmd: Fix possible access to a freed kirqfd instance
Nothing prevents si
ghsa_unreviewed·2024-09-18
CVE-2024-46762 [MEDIUM] CWE-416 GHSA-4366-c9hw-r9qg: In the Linux kernel, the following vulnerability has been resolved:
xen: privcmd: Fix possible access to a freed kirqfd instance
Nothing prevents si
In the Linux kernel, the following vulnerability has been resolved:
xen: privcmd: Fix possible access to a freed kirqfd instance
Nothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and
privcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd
created and added to the irqfds_list by privcmd_irqfd_assign() may get
removed by another thread executing privcmd_irqfd_deassign(), while the
former is still using it after dropping the locks.
This can lead to a situation where an already freed kirqfd instance may
be accessed and cause kernel oops.
Use SRCU locking to prevent the same, as is done for the KVM
implementation for irqfds.
OSV
CVE-2024-46762: In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fix possible access to a freed kirqfd instance Nothing prevents simu
osv·2024-09-18·CVSS 5.5
CVE-2024-46762 [MEDIUM] CVE-2024-46762: In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fix possible access to a freed kirqfd instance Nothing prevents simu
In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fix possible access to a freed kirqfd instance Nothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and privcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd created and added to the irqfds_list by privcmd_irqfd_assign() may get removed by another thread executing privcmd_irqfd_deassign(), while the former is still using it after dropping the locks. This can lead to a situation where an already freed kirqfd instance may be accessed and cause kernel oops. Use SRCU locking to prevent the same, as is done for the KVM implementation for irqfds.
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2025-01-09
CVE-2024-43827 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;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware mon
Ubuntu
Linux kernel (HWE) vulnerabilities
vendor_ubuntu·2025-01-06
CVE-2024-46727 Linux kernel (HWE) vulnerabilities
Title: Linux kernel (HWE) 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;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monit
Ubuntu
Linux kernel (GKE) vulnerabilities
vendor_ubuntu·2024-12-12·CVSS 5.5
CVE-2024-42089 [MEDIUM] Linux kernel (GKE) vulnerabilities
Title: Linux kernel (GKE) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Chenyuan Yang discovered that the USB Gadget subsystem in the Linux kernel
did not properly check for the device to be enabled before writing. A local
attacker could possibly use this to cause a denial of service.
(CVE-2024-25741)
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;
- MIPS architecture;
- PA-RISC architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2024-12-12
CVE-2024-43846 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:
- ARM64 architecture;
- MIPS architecture;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware mo
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2024-12-12
CVE-2024-43895 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;
- PowerPC architecture;
- RISC-V architecture;
- S390 architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Android drivers;
- ATM drivers;
- Drivers core;
- Ublk userspace block driver;
- Bluetooth drivers;
- Character device driver;
- Hardware crypto device drivers;
- Buffer Sharing and Synchronization framework;
- DMA engine subsystem;
- Qualcomm firmware drivers;
- GPIO subsystem;
- GPU drivers;
- HID subsystem;
- Hardware monitoring
Red Hat
kernel: xen: privcmd: Fix possible access to a freed kirqfd instance
vendor_redhat·2024-09-18·CVSS 5.5
CVE-2024-46762 [MEDIUM] CWE-416 kernel: xen: privcmd: Fix possible access to a freed kirqfd instance
kernel: xen: privcmd: Fix possible access to a freed kirqfd instance
In the Linux kernel, the following vulnerability has been resolved:
xen: privcmd: Fix possible access to a freed kirqfd instance
Nothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and
privcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd
created and added to the irqfds_list by privcmd_irqfd_assign() may get
removed by another thread executing privcmd_irqfd_deassign(), while the
former is still using it after dropping the locks.
This can lead to a situation where an already freed kirqfd instance may
be accessed and cause kernel oops.
Use SRCU locking to prevent the same, as is done for the KVM
implementation for irqfds.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Packag
Microsoft
xen: privcmd: Fix possible access to a freed kirqfd instance
vendor_msrc·2024-09-10·CVSS 5.5
CVE-2024-46762 [MEDIUM] CWE-416 xen: privcmd: Fix possible access to a freed kirqfd instance
xen: privcmd: Fix possible access to a freed kirqfd instance
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://
Debian
CVE-2024-46762: linux - In the Linux kernel, the following vulnerability has been resolved: xen: privcm...
vendor_debian·2024·CVSS 5.5
CVE-2024-46762 [MEDIUM] CVE-2024-46762: linux - In the Linux kernel, the following vulnerability has been resolved: xen: privcm...
In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fix possible access to a freed kirqfd instance Nothing prevents simultaneous ioctl calls to privcmd_irqfd_assign() and privcmd_irqfd_deassign(). If that happens, it is possible that a kirqfd created and added to the irqfds_list by privcmd_irqfd_assign() may get removed by another thread executing privcmd_irqfd_deassign(), while the former is still using it after dropping the locks. This can lead to a situation where an already freed kirqfd instance may be accessed and cause kernel oops. Use SRCU locking to prevent the same, as is done for the KVM implementation for irqfds.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved (fixed in 6.10.11-1)
sid: resolved (fixed in 6.10.11-1)
trixie: resolve
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-09-18
Published