kernel: xfrm6: check ip6_dst_idev() return value in xfrm6_get_saddr()

A vulnerability was found in the Linux kernel's IPv6 handling in the xfrm6getsaddr function, where the issue occurs when ip6dstidev returns NULL, leading to a null pointer dereference and resulting in a general protection fault...

kernel: ipv6: prevent NULL dereference in ip6_output()

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent NULL dereference in ip6output According to syzbot, there is a chance that ip6dstidev returns NULL in ip6output. Most places in IPv6 stack deal with a NULL idev just fine, but not here. syzbot reported: general...

OESA-2024-2152 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035i2cmasterxfer In af9035i2cmasterxfer, msg is controlled by user. When msgi.buf is null and msgi.len is zer...

PT-2024-7577

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.58 Description The issue is related to the nf reject ip6 tcphdr put function in the Linux kernel's netfilter module, which may send garbage on the four reserved TCP bits th-res1. This is due to the use of...

AZL-48639 CVE-2024-44985 affecting package kernel for versions less than 5.15.167.1-1

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UAF in ip6xmit If skbexpandhead returns NULL, skb has been freed and the associated dst/idev could also have been freed. We must use rcureadlock to prevent a possible UAF...

DEBIAN-CVE-2024-44987

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent UAF in ip6sendskb syzbot reported an UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue has been fixed in commit a688caa34beb "ipv...

AZL-48686 CVE-2024-44986 affecting package kernel for versions less than 6.6.51.1-1

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in ip6finishoutput2 If skbexpandhead returns NULL, skb has been freed and associated dst/idev could also have been freed. We need to hold rcureadlock to make sure the dst and associated idev are alive...

UBUNTU-CVE-2024-44987

In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent UAF in ip6sendskb syzbot reported an UAF in ip6sendskb 1 After ip6localout has returned, we no longer can safely dereference rt, unless we hold rcureadlock. A similar issue has been fixed in commit a688caa34beb "ipv...

PT-2024-5946

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.50 Description The issue is related to the use of memory after it has been freed in the ip6 finish output2 function of the Linux kernel. This can lead to a denial of service. The problem occurs when skb expan...

PT-2024-8009

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.50 Description The vulnerability is related to a use-after-free issue in the ip6 send skb function in the Linux kernel's IPv6 implementation. This issue can be exploited to impact the confidentiality,...

PT-2024-5944

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.50 Description The issue is related to a possible use-after-free UAF vulnerability in the ip6 xmit function of the Linux kernel. If skb expand head returns NULL, it indicates that the skb has been freed, and...

kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify()

A use-after-free flaw was found in ip6routempathnotify in the Linux kernel. This may lead to a crash...

CLSA-2024-1722533082 kernel: Fix of 47 CVEs

afunix: Fix garbage collector racing against connect CVE-2024-26923 - netfilter: nftlimit: reject configurations that cause integer overflow CVE-2024-26668 - libbpf: Fix use-after-free in btfdumpnamedups CVE-2022-3534 - bpf: Fix partial dynptr stack slot reads/writes CVE-2023-39191 - ima: Fix...

kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify()

A use-after-free flaw was found in ip6routempathnotify in the Linux kernel. This may lead to a crash...

DEBIAN-CVE-2022-48810

In the Linux kernel, the following vulnerability has been resolved: ipmr,ip6mr: acquire RTNL before calling ip6mrfreetable on failure path ip6mrfreetable can only be called under RTNL lock. RTNL: assertion failed at net/core/dev.c 10367 WARNING: CPU: 1 PID: 5890 at net/core/dev.c:10367...

DEBIAN-CVE-2024-40959

In the Linux kernel, the following vulnerability has been resolved: xfrm6: check ip6dstidev return value in xfrm6getsaddr ip6dstidev can return NULL, xfrm6getsaddr must act accordingly. syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 1...

UBUNTU-CVE-2024-40959

In the Linux kernel, the following vulnerability has been resolved: xfrm6: check ip6dstidev return value in xfrm6getsaddr ip6dstidev can return NULL, xfrm6getsaddr must act accordingly. syzbot reported: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 1...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the xfrm6 component failing to properly check the return value of the ip6dstidev function when obtaining a...

SUSE-SU-2024:2205-1 Security update for the Linux Kernel (Live Patch 8 for SLE 15 SP5)

This update for the Linux Kernel 5.14.21-1505005539 fixes several issues. The following security issues were fixed: - CVE-2023-6931: Fixed an out of bounds write in the Performance Events subsystem when adding a new event bsc1218259. - CVE-2024-26852: Fixed use-after-free in ip6routempathnotify...

SUSE-SU-2024:2202-1 Security update for the Linux Kernel (Live Patch 51 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122186 fixes several issues. The following security issues were fixed: - CVE-2021-46955: Fixed an out-of-bounds read with openvswitch, when fragmenting IPv4 packets bsc1220537. - CVE-2023-6931: Fixed an out of bounds write in the Performance Events subsyst...