UBUNTU-CVE-2026-52938

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpfskstorageclone and diag paths bpfselemunlinknofail sets SDATAselem-smap to NULL before removing the selem from the storage hlist. A concurrent RCU reader in bpfskstorageclone can observe th...

CVE-2026-52938

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpfskstorageclone and diag paths bpfselemunlinknofail sets SDATAselem-smap to NULL before removing the selem from the storage hlist. A concurrent RCU reader in bpfskstorageclone can observe th...

CVE-2026-52938 bpf: Fix NULL pointer dereference in bpf_sk_storage_clone and diag paths

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpfskstorageclone and diag paths bpfselemunlinknofail sets SDATAselem-smap to NULL before removing the selem from the storage hlist. A concurrent RCU reader in bpfskstorageclone can observe th...

CVE-2026-52938

CVE-2026-52938 concerns a race in Linux kernel BPF storage: bpf_selem_unlink_nofail() clears smap before removal, allowing a concurrent reader in bpf_sk_storage_clone() to observe a NULL smap and dereference a NULL pointer, potentially crashing the kernel (DoS). Reports describe a null-ptr-deref ...

EUVD-2026-38708

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpfskstorageclone and diag paths bpfselemunlinknofail sets SDATAselem-smap to NULL before removing the selem from the storage hlist. A concurrent RCU reader in bpfskstorageclone can observe th...

CVE-2026-52938 bpf: Fix NULL pointer dereference in bpf_sk_storage_clone and diag paths

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix NULL pointer dereference in bpfskstorageclone and diag paths bpfselemunlinknofail sets SDATAselem-smap to NULL before removing the selem from the storage hlist. A concurrent RCU reader in bpfskstorageclone can observe th...

PT-2026-51731

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the BPF Berkeley Packet Filter subsystem. The function bpf selem unlink nofail sets the smap variable to NULL before removing the element from the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: x86/entry: Clear X86FEATURESMAP when CONFIGX86SMAP=n Commit: 3c73b81a9164 “x86/entry, selftests: Further improve user entry sanity checks” added a warning if AC is set when in the kernel. Commit: 662a0221893a3d “x86/entry: Fix...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15, and Linux 6.1

An integer overflow flaw was discovered in the Linux kernel. This issue causes the kernel to allocate skbsharedinfo in the user space, which can be exploited in systems without SMAP protection, as skbsharedinfo contains references to function pointers...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-004431)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004431 advisory. In the Linux kernel before 4.20.14, expanddownwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NU...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-004085)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004085 advisory. In the Linux kernel before 4.20.14, expanddownwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NU...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990203)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990203 advisory. In the Linux kernel, the following vulnerability has been resolved: x86/mm: Disallow vsyscall page read for copyfromkernelnofault When trying to use...

EUVD-2019-18588

Malware in sbrugna...

EUVD-2021-16104

Malware in sbrugna...

EUVD-2001-1436

Malware in sbrugna...

EUVD-2023-47184

Malicious code in bioql PyPI...

Linux Distros Unpatched Vulnerability : CVE-2021-47430

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: x86/entry: Clear X86FEATURESMAP when CONFIGX86SMAP=n Commit 3c73b81a9164 x86/entry, selftest...

CVE-2021-29628

In FreeBSD 13.0-STABLE before n245764-876ffe28796c, 12.2-STABLE before r369857, 13.0-RELEASE before p1, and 12.2-RELEASE before p7, a system call triggering a fault could cause SMAP protections to be disabled for the duration of the system call. This weakness could be combined with other kernel...

Enable Kernel SMAP

Supervisor Mode Access Prevention SMAP can be enabled to prevent the kernel from accessing data in user space. If SMAP is not enabled, attackers can access data in user space through kernel-mode code redirection, which increases the attack surface and reduces system security. SMAP is enabled by...

New Linux Kernel Exploit Technique 'SLUBStick' Discovered by Researchers

Cybersecurity researchers have shed light on a novel Linux kernel exploitation technique dubbed SLUBStick that could be exploited to elevate a limited heap vulnerability to an arbitrary memory read-and-write primitive. "Initially, it exploits a timing side-channel of the allocator to perform a...