CVE-2024-27031 NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix nfsnetfsissueread xarray locking for writeback interrupt The loop inside nfsnetfsissueread currently does not disable interrupts while iterating through pages in the xarray to submit for NFS read. This is not safe though...

CVE-2024-27031 NFS: Fix nfs_netfs_issue_read() xarray locking for writeback interrupt

In the Linux kernel, the following vulnerability has been resolved: NFS: Fix nfsnetfsissueread xarray locking for writeback interrupt The loop inside nfsnetfsissueread currently does not disable interrupts while iterating through pages in the xarray to submit for NFS read. This is not safe though...

CVE-2024-27030

CVSS context: Local impact, high/critical data integrity risk when interrupts race. Affected component: octeontx2-af in the Linux kernel. Root cause: PF→AF interrupt vector and VF→AF vector registered to the same interrupt handler, enabling a race when two interrupts arrive on two CPUs simultaneo...

CVE-2024-27030

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Use separate handlers for interrupts For PF to AF interrupt vector and VF to AF vector same interrupt handler is registered which is causing race condition. When two interrupts are raised to two CPUs at same time th...

CVE-2024-27028 spi: spi-mt65xx: Fix NULL pointer access in interrupt handler

In the Linux kernel, the following vulnerability has been resolved: spi: spi-mt65xx: Fix NULL pointer access in interrupt handler The TX buffer in spitransfer can be a NULL pointer, so the interrupt handler may end up writing to the invalid memory and cause crashes. Add a check to trans-txbuf...

CVE-2024-27028

CVE-2024-27028 is confirmed with concrete details in connected docs: the Linux kernel spi-mt65xx driver had a NULL pointer dereference in the interrupt handler during spi_transfer when tx_buf could be NULL. The fix adds a check for trans->tx_buf before use, mitigating potential crashes. Affect...

CVE-2024-27028 spi: spi-mt65xx: Fix NULL pointer access in interrupt handler

In the Linux kernel, the following vulnerability has been resolved: spi: spi-mt65xx: Fix NULL pointer access in interrupt handler The TX buffer in spitransfer can be a NULL pointer, so the interrupt handler may end up writing to the invalid memory and cause crashes. Add a check to trans-txbuf...

DEBIAN-CVE-2024-26999

In the Linux kernel, the following vulnerability has been resolved: serial/pmaczilog: Remove flawed mitigation for rx irq flood The mitigation was intended to stop the irq completely. That may be better than a hard lock-up but it turns out that you get a crash anyway if you're using pmaczilog as ...

UBUNTU-CVE-2024-26999

In the Linux kernel, the following vulnerability has been resolved: serial/pmaczilog: Remove flawed mitigation for rx irq flood The mitigation was intended to stop the irq completely. That may be better than a hard lock-up but it turns out that you get a crash anyway if you're using pmaczilog as ...

CVE-2024-27001 comedi: vmk80xx: fix incomplete endpoint checking

In the Linux kernel, the following vulnerability has been resolved: comedi: vmk80xx: fix incomplete endpoint checking While vmk80xx does have endpoint checking implemented, some things can fall through the cracks. Depending on the hardware model, URBs can have either bulk or interrupt type, and...

hw: amd: Instruction raise #VC exception at exit

A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the...

hw: amd: Instruction raise #VC exception at exit

A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the...

hw: amd: Instruction raise #VC exception at exit

A vulnerability was found in AMD SEV-SNP, where a malicious hypervisor can potentially break confidentiality and integrity of SEV-SNP on Linux guests by injecting interrupts. An attacker can inject interrupt 0x80, which is used by Linux for legacy 32-bit system calls, and arbitrarily change the...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel, which stems from a null pointer access vulnerability in the interrupt handler...

kernel: misc: pci_endpoint_test: Free IRQs before removing the device

A use-after-free flaw was found in the Linux kernel's PCI endpoint test driver. In pciendpointtestremove, IRQs are freed after the device is removed, creating a race window where an IRQ can be delivered after device memory is freed. The IRQ handler then accesses invalid memory, causing a kernel...

kernel: net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices

A flaw was found in the dp83822 module in the Linux kernel. A private data pointer is only initialized by the DP83822 PHY. It is left uninitialized by other smaller models, allowing a NULL pointer dereference to be triggered due to missing checks when interrupts are being configured, causing a...

kernel: Linux kernel (amdgpu): Denial of Service via incorrect interrupt handling

A flaw was found in the Linux kernel's AMD GPU amdgpu driver. A local attacker with high privileges could trigger an incorrect interrupt handling mechanism within the gmcv110hwfini function. This issue arises because the host driver attempts to disable an interrupt that is managed by the firmware...

kernel: drm/amdgpu/gfx: disable gfx9 cp_ecc_error_irq only when enabling legacy gfx ras

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx: disable gfx9 cpeccerrorirq only when enabling legacy gfx ras gfx9 cpeccerrorirq is only enabled when legacy gfx ras is assert. So in gfxv90hwfini, interrupt disablement for cpeccerrorirq should be executed under...

kernel: rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed

In the Linux kernel, the following vulnerability has been resolved: rcu: Avoid stack overflow due to rcuirqenterchecktick being kprobe-ed Registering a kprobe on rcuirqenterchecktick can cause kernel stack overflow as shown below. This issue can be reproduced by enabling CONFIGNOHZFULL and bootin...

kernel: drm/amdgpu: drop gfx_v11_0_cp_ecc_error_irq_funcs

A logic error was found in the Linux kernel amdgpu graphics driver's interrupt handling for GFX version 11 hardware. A local user with access to an AMD GPU can trigger a GPU device reset or suspend operation, causing the driver to attempt cleanup of a retired interrupt handler that no longer...