ALSA-2026:21557 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: j1939: j1939sessionnew: fix skb reference counting CVE-2024-56645 kernel: ima: don't clear IMADIGSIG flag when setting or removing non-IMA xattr CVE-2025-68183 kernel: mm: thp: deny...

UBUNTU-CVE-2026-47336

Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AFINET/AFINET6 socket mediation code. The bug can be triggered by an unprivileged local user and could result in incorrect fine-grained mediation of network sockets...

PT-2026-44549

Name of the Vulnerable Software and Affected Versions nono versions prior to 0.55.0 Description Landlock and seccomp policies in the software allow access to local Unix domain sockets, including both concrete and abstract types. This flaw enables a sandbox escape by allowing a process to...

CVE-2026-46053

A flaw was found in the Linux kernel's Reliable Datagram Sockets RDS network protocol. When handling memory registration MR cleanup, specifically during the process of copying generated cookies back to user space, an error in the cleanup path could lead to resources being freed multiple times. Th...

EUVD-2026-32314

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aasockfileperm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in unixneedsrevalidation shows...

UBUNTU-CVE-2026-46053

In the Linux kernel, the following vulnerability has been resolved: net: rds: fix MR cleanup on copy error rdsrdmamap hands sg/pages ownership to the transport after getmr succeeds. If copying the generated cookie back to user space fails after that point, the error path must not free those...

CVE-2026-45848

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aasockfileperm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in unixneedsrevalidation shows...

UBUNTU-CVE-2026-45848

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aasockfileperm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in unixneedsrevalidation shows...

CVE-2026-46053

CVE-2026-46053 affects the Linux kernel RDS memory-registration cleanup. In net/rds, __rds_rdma_map() transfers ownership of sg/pages after get_mr(); if copying the cookie back to user space fails, resources could be freed more than once. The fix removes a duplicate unpin/free in the put_user() f...

CVE-2026-46053

In the Linux kernel, the following vulnerability has been resolved: net: rds: fix MR cleanup on copy error rdsrdmamap hands sg/pages ownership to the transport after getmr succeeds. If copying the generated cookie back to user space fails after that point, the error path must not free those...

CVE-2026-45887 af_unix: Fix memleak of newsk in unix_stream_connect().

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix memleak of newsk in unixstreamconnect. When preparepeercred fails in unixstreamconnect, unixreleasesock is not called for newsk, and the memory is leaked. Let's move preparepeercred before unixcreate1...

CVE-2026-45887 af_unix: Fix memleak of newsk in unix_stream_connect().

In the Linux kernel, the following vulnerability has been resolved: afunix: Fix memleak of newsk in unixstreamconnect. When preparepeercred fails in unixstreamconnect, unixreleasesock is not called for newsk, and the memory is leaked. Let's move preparepeercred before unixcreate1...

CVE-2026-45848

The CVE-2026-45848 issue affects the Linux kernel AppArmor component, where NULL sock or sock-sk can occur during socket setup/teardown, potentially causing a NULL pointer dereference and a kernel oops (DoS) for af_unix sockets. Root cause is dereferencing NULL during socket operations; impact is...

CVE-2026-45848 apparmor: fix NULL sock in aa_sock_file_perm

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aasockfileperm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in unixneedsrevalidation shows...

CVE-2026-45848 apparmor: fix NULL sock in aa_sock_file_perm

In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aasockfileperm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in unixneedsrevalidation shows...

[SECURITY] Fedora 43 Update: curl-8.15.0-7.fc43

curl is a command line tool for transferring data with URL syntax, supporting FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, IMA P, SMTP, POP3 and RTSP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies,...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the failure of the prepare-peercred function in unixstreamconnect, resulting in unmanaged new...

postgresql: PostgreSQL: Denial of Service via uncontrolled recursion in SSL/GSS negotiation

A flaw was found in PostgreSQL. Uncontrolled recursion during SSL Secure Sockets Layer and GSS Generic Security Service negotiation allows an attacker to achieve a sustained denial of service. This can be exploited by an attacker with access to a PostgreSQL AFUNIX socket. If SSL and GSS are both...

USN-8280-3: Linux kernel (IoT) vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 Several security issues were discovered in th...

USN-8280-3 linux-iot vulnerabilities

It was discovered that the Linux kernel algifaead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. CVE-2026-31431 Several security issues were discovered in th...