One-Character Linux Kernel Flaw Enables Local Root Access, Exploits Now Public

Security researchers have published a detailed, working exploit for a Linux kernel use-after-free that lets an unprivileged local user escalate to root and break out of a container. The flaw, CVE-2026-23111, sits in the kernel's nftables packet-filtering code and was patched upstream on February ...

CVE-2026-46276

A flaw was found in the Linux kernel's amdgpu graphics driver. This vulnerability occurs when the driver attempts to initialize zero-sized graphics memory resources on certain RDNA4 GFX 12 hardware. If a specific debugging option CONFIGDRMDEBUGMM is enabled in the kernel configuration, this...

CVE-2026-46277

A flaw was found in the Linux kernel's memory management, specifically within the mm/zonedevice component. This vulnerability arises when a device folio is accessed after it has been freed and potentially reallocated by a driver. This can lead to memory corruption, which a local attacker could...

CVE-2026-46278

A flaw was found in the Linux kernel's drm/imagination driver. A local user could trigger a kernel NULL pointer dereference by providing invalid data when updating the ftrace mask through a debugfs entry. This vulnerability can lead to a system crash, resulting in a Denial of Service DoS...

CVE-2026-46279

A flaw was found in the Linux kernel's memory management subsystem. Due to an initialization ordering issue, certain pages allocated before the pageext structure is fully available may have uninitialized codetag references. This can lead to a warning being triggered when these pages are later...

CVE-2026-46280

A flaw was found in the Linux kernel's Heterogeneous Memory Management HMM test module. When a device mirror dmirror structure is freed, its associated device private pages are not properly migrated back to system memory. This can lead to a use-after-free condition where a dangling pointer to the...

CVE-2026-46281

A flaw was found in the Linux kernel. When shrinking a vmalloc allocation using the vreallocnodealign function, if the requested new size is smaller than the old size, an out-of-bounds write can occur. This memory corruption vulnerability could allow a local attacker to cause a denial of service ...

CVE-2026-46282

A flaw was found in the Linux kernel's iio: frequency: admv1013 driver. This vulnerability occurs when the system attempts to read a device property, and an uninitialized string is used, leading to a NULL pointer dereference. This could allow a local attacker to trigger a system crash, resulting ...

CVE-2026-46283

A flaw was found in the Linux kernel's Trusted Platform Module TPM driver. This vulnerability arises from the driver's failure to securely clear sensitive cryptographic material, such as session keys and passphrases, from memory when a TPM device is released. A local attacker could potentially...

CVE-2026-46285

A flaw was found in the Linux kernel's mtd: docg3 module. The docg3release function attempts to access memory that has already been deallocated, leading to a use-after-free vulnerability. This issue could allow a local attacker to cause a denial of service or potentially execute arbitrary code...

CVE-2026-46284

A flaw was found in the Linux kernel's hugetlb memory management. A local user could exploit this by providing malformed kernel command-line parameters, such as hugepages or hugepagesz, without an '=' separator. This improper handling of input during early parameter parsing can lead to a system...

CVE-2026-46287

A flaw was found in the Linux kernel's txgbe network driver. When removing a module for a copper Network Interface Card NIC with an external physical layer PHY, the driver failed to acquire the necessary RTNL Routing Netlink lock before disconnecting the PHY. This oversight can lead to an RTNL...

CVE-2026-46288

A flaw was found in the Linux kernel. This vulnerability, a use-after-free UAF, occurs within the ofunittestchangeset function due to improper handling of device node references. An attacker could exploit this by causing a device node's memory to be freed while it is still in use. This could lead...

CVE-2026-46289

A flaw was found in the Linux kernel's lib/scatterlist component. Incorrect length calculations within the extractkvectosg function, when extracting data from a kvec to a scatterlist, could lead to writing beyond intended page boundaries. Additionally, when extracting a user buffer, the scatterli...

CVE-2026-46290

A flaw was found in the Linux kernel's x86/efi component. Due to changes in FPU softirq handling, the system incorrectly identifies normal task context as an interrupt context. This issue, when combined with buggy firmware that triggers page faults during EFI Extensible Firmware Interface runtime...

CVE-2026-46291

A flaw was found in the Linux kernel's crypto: caam component. This vulnerability allows for the disclosure of sensitive HMAC Hash-based Message Authentication Code key bytes at runtime. The issue occurs because the hashdigestkey function uses printhexdumpdevel without proper guarding, which can...

CVE-2026-46293

A flaw was found in the Linux kernel's clock driver for Microchip PolarFire SoC MPFS systems. This vulnerability involves an out-of-bounds memory access that occurs during the registration of clock outputs. The issue stems from incorrect memory allocation within the driver, which can lead to syst...

CVE-2026-46292

A flaw was found in the Linux kernel's generic power domain genpd component. When a virtual device is detached from a power management PM domain, the pmruntimedisable function is not called, leaving runtime PM enabled for the detached device. This oversight can lead to critical errors, including ...

CVE-2026-46294

A flaw was found in the Linux kernel, specifically within the dm-ioctl module. An improper pointer alignment in the retrievestatus function could lead to a buffer overflow, where data is written beyond the allocated buffer. Despite this, the vulnerability has no practical security implications as...

CVE-2026-46295

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A race condition in the Advanced Programmable Interrupt Controller APIC interrupt handling can lead to an incorrect state during interrupt synchronization. This issue, occurring between a sender and target virtual...