kernel: drm/amdgpu: Refactor amdgpu_gem_va_ioctl for Handling Last Fence Update and Timeline Management v4

A flaw was found in the Linux kernel's AMD GPU amdgpu driver. Incorrect management of graphics memory dmafence references within the amdgpugemvaioctl function can lead to a reference count underflow and a use-after-after-free condition. A local attacker could exploit this vulnerability to trigger...

CVE-2026-49419

The FreeBSD operating system (versions 15.0 and later ) is vulnerable to a prison reference count underflow in the kern_jail_set() and kern_jail_get() functions. When the JAIL_AT_DESC flag is used, the system incorrectly releases a reference to the caller's current prison before searching for the...

CVE-2026-49419: Improper Update of Reference Count

When the JAILATDESC flag is specified, kernjailset and kernjailget released the reference to the caller's current prison before looking up the jail descriptor. If the descriptor lookup failed, error-handling paths released the same reference a second time. An unprivileged local user can trigger a...

CVE-2026-72042

A flaw was found in the Linux kernel's Intelligent Platform Management Interface IPMI subsystem. An issue in the event delivery mechanism, specifically a reference count underflow, can lead to a use-after-free vulnerability. This occurs when a user's reference count is prematurely decremented...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100769)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100769 advisory. In the Linux kernel, the following vulnerability has been resolved: fat: avoid parent link count underflow in rmdir Corrupted FAT images can leave a directory inode...

PT-2026-68081

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the xfrm6 fill dst function where the dst.dev is not cleared during an error path when in6 dev getdev returns NULL. In this scenario, the function releases the device...

CVE-2026-64534

A flaw was found in the Linux kernel's NVMe over TCP target nvmet-tcp implementation. When a data digest mismatch is detected, nvmetrequninit is called unconditionally, but if the command was already in the INITFAILED state, the matching percpureftrygetlive was never performed. The resulting...

SUSE CVE-2026-64534

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check INITFAILED before nvmetrequninit in digest error path In nvmettcptryrecvddgst, when a data digest mismatch is detected, nvmetrequninit is called unconditionally. However, if the command arrived via the...

CVE-2026-64534 nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check INITFAILED before nvmetrequninit in digest error path In nvmettcptryrecvddgst, when a data digest mismatch is detected, nvmetrequninit is called unconditionally. However, if the command arrived via the...

CVE-2026-64534 nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path

In the Linux kernel, the following vulnerability has been resolved: nvmet-tcp: check INITFAILED before nvmetrequninit in digest error path In nvmettcptryrecvddgst, when a data digest mismatch is detected, nvmetrequninit is called unconditionally. However, if the command arrived via the...

EUVD-2026-45708

In the Linux kernel, the following vulnerability has been resolved: iio: adc: nxp-sar-adc: fix division by zero in writeraw Add a validation check for the sampling frequency value before using it as a divisor. A user writing zero or a negative value to the samplingfrequency sysfs attribute trigge...

CVE-2026-63935

The CVE-2026-63935 entry concerns the Linux kernel IIO ADC driver for the NXP SAR ADC. A division-by-zero occurs in write_raw when a user writes zero or negative values to the sampling_frequency sysfs attribute; the fix adds a validation check to prevent using such values as a divisor. The patch ...

FreeBSD-SA-26:38.jail

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:38.jail Security Advisory The FreeBSD Project Topic: Jail reference count underflow Category: core Module: jail Announced: 2026-06-30 Credits: Yuxiang Yang,...

Astra Linux – Vulnerability found in Linux 6.12, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Remove the improper idxdfree The call to idxdfree introduces a duplicate putdevice call, resulting in a reference count underflow: refcountt: underflow; use-after-free. WARNING: CPU: 15, PID: 4428, at...

CVE-2026-45910

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix race condition in QP timer handlers I encontered the following warning: WARNING: drivers/infiniband/sw/rxe/rxetask.c:249 at rxeschedtask+0x1c8/0x238 rdmarxe, CPU0: swapper/0/0 ... libsha1 last unloaded: ip6udptunnel...

CVE-2026-45915

CVE-2026-45915 — FAT filesystem rmdir link-count underflow (Linux kernel) Root cause: When FAT images are corrupted, a directory inode’s i_nlink can be incorrect (e.g., 2) while subdirectories exist, causing rmdir to call drop_nlink(dir) unconditionally and potentially drive i_nlink to 0, trigger...

CVE-2026-45910

The CVE-2026-45910 issue affects the Linux kernel RDMA/rxe driver, caused by a race between retransmit_timer() and rxe_destroy_qp that can drop a Queue Pair (QP) reference count to zero during timer handling. Public documents describe a use-after-free risk and refcount underflow in affected flows...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: schedext: Redundant cssput calls have been removed from scxcgroupinit. The iterator cssforeachdescendantpre iterates through the cgroup hierarchy under cgrouplock. This iteration does not increment the reference counts of css...

CVE-2026-43438

A flaw was found in the Linux kernel's schedext component. This vulnerability is caused by a redundant cssput call in the scxcgroupinit function, leading to a reference count underflow. This can result in a Use-After-Free UAF vulnerability, potentially allowing a local attacker to cause a denial ...

EUVD-2026-28744

In the Linux kernel, the following vulnerability has been resolved: schedext: Remove redundant cssput in scxcgroupinit The iterator cssforeachdescendantpre walks the cgroup hierarchy under cgrouplock. It does not increment the reference counts on yielded css structs. According to the cgroup...