kernel: net: fix NULL pointer in skb_segment_list

A flaw was found in the Linux kernel's net subsystem. A NULL pointer dereference can be triggered when a specific sequence of network events occurs due to an improper check, resulting in a denial of service...

kernel: wifi: fix potential NULL-ptr deref after clone

A flaw was found in the Linux kernel’s iwlwifi mei driver. When the driver attempts to clone a socket bufferand that operation fails, it may erroneously dereference a NULL pointer, leading to a kernel crash or denial of service. An unprivileged local user may be able to trigger this flaw by...

kernel: denial of service in tipc_conn_close

A data race flaw was found in the Linux kernel, between where con is allocated and con-sock is set. This issue leads to a NULL pointer dereference when accessing con-sock-sk in net/tipc/topsrv.c in the tipc protocol in the Linux kernel...

libssh security update

0.10.4-11 - Fix loglevel regression - Related: rhbz2182252, rhbz2189740 0.10.4.10 - Fix null dereference issues found by covscan - Related: rhbz2182252, rhbz2189740 0.10.4-9 - Fix CVE-2023-1667 and CVE-2023-2283 - Fix issues found by cosvcan - Resolves: rhbz2182252, rhbz2189740...

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.

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Null Dereference

libjasper.so is vulnerable to Null dereferencing. The vulnerability occurs due to a lack of validation performed while processing specially crafted image files. An attacker can trigger a crash via a specially crafted image file which could lead to DoS...

kernel: raw: Fix NULL deref in raw_get_next()

In the Linux kernel, the following vulnerability has been resolved: raw: Fix NULL deref in rawgetnext. Dae R. Jeong reported a NULL deref in rawgetnext 0. It seems that the repro was running these sequences in parallel so that one thread was iterating on a socket that was being freed in another...

kernel: watch_queue: Fix NULL dereference in error cleanup

In the Linux kernel, the following vulnerability has been resolved: watchqueue: Fix NULL dereference in error cleanup In watchqueuesetsize, the error cleanup code doesn't take account of the fact that freepage can't handle a NULL pointer when trying to free up buffer pages that did get allocated...

kernel: drm/amdgpu: Fix size validation for non-exclusive domains (v4)

A NULL pointer dereference flaw was found in the Linux kernel's AMD GPU driver in the buffer object size validation logic. A local user on systems with AMD graphics hardware can trigger this issue by requesting memory allocation in non-exclusive domains when the Translation Table Manager domain...

kernel: blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix NULL dereference on q-elevator in blkmqelvswitchnone After grabbing q-sysfslock, q-elevator may become NULL because of elevator switch. Fix the NULL dereference on q-elevator by checking it with lock...

kernel: dm stats: check for and propagate alloc_percpu failure

In the Linux kernel, the following vulnerability has been resolved: dm stats: check for and propagate allocpercpu failure Check allocprecpu's return value and return an error from dmstatsinit if it fails. Update allocdev to fail if dmstatsinit does. Otherwise, a NULL pointer dereference will occu...

PT-2025-41040

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the drm/amd/display module, specifically within the dm resume function. This issue involves a potential null dereference, identified by a smatch error...

QEMU: VNC: improper I/O watch removal in TLS handshake can lead to remote unauthenticated denial of service

A flaw was found in the QEMU built-in VNC server. When a client connects to the VNC server, QEMU checks whether the current number of connections crosses a certain threshold and if so, cleans up the previous connection. If the previous connection happens to be in the handshake phase and fails, QE...

Ubuntu 16.04 ESM / 18.04 ESM : Mosquitto vulnerability (USN-4823-1)

The remote Ubuntu 16.04 ESM / 18.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-4823-1 advisory. It was discovered that Mosquitto incorrectly handled certain inputs. A remote attacker could possibly use this issue to cause a denial of service...

CLSA-2023-1697744503 Fix of 7 CVEs

CVE-url: https://ubuntu.com/security/CVE-2023-42755 - net/sched: Retire rsvp classifier CVE-url: https://ubuntu.com/security/CVE-2023-39194 - net: xfrm: Fix xfrmaddressfilter OOB read CVE-url: https://ubuntu.com/security/CVE-2023-39192 - netfilter: xtu32: validate user space input CVE-url:...

CLSA-2023-1697744372 Fix of 7 CVEs

CVE-url: https://ubuntu.com/security/CVE-2023-42755 - net/sched: Retire rsvp classifier CVE-url: https://ubuntu.com/security/CVE-2023-39194 - net: xfrm: Fix xfrmaddressfilter OOB read CVE-url: https://ubuntu.com/security/CVE-2023-39192 - netfilter: xtu32: validate user space input CVE-url:...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

RLSA-2023:4529 Moderate: libxml2 security update

The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fixes: libxml2: NULL dereference in xmlSchemaFixupComplexType CVE-2023-28484 libxml2: Hashing of empty dict strings isn't deterministic CVE-2023-29469 For more details about the security...

USN-6417-1 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gkeop, linux-hwe-5.4, linux-ibm, linux-ibm-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4, linux-xilinx-zynqmp vulnerabilities

It was discovered that the eBPF implementation in the Linux kernel contained a race condition around read-only maps. A privileged attacker could use this to modify read-only maps. CVE-2021-4001 It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash...

Important: kernel

Issue Overview: A use-after-free flaw was found in btrfssearchslot in fs/btrfs/ctree.c in btrfs in the Linux Kernel.This flaw allows an attacker to crash the system and possibly cause a kernel information lea CVE-2023-1611 A flaw in the Linux Kernel found in the GFS2 file system. On corrupted gfs...