CVE-2025-21868 net: allow small head cache usage with large MAX_SKB_FRAGS values

In the Linux kernel, the following vulnerability has been resolved: net: allow small head cache usage with large MAXSKBFRAGS values Sabrina reported the following splat: WARNING: CPU: 0 PID: 1 at net/core/dev.c:6935 netifnapiaddweightlocked+0x8f2/0xba0 Modules linked in: CPU: 0 UID: 0 PID: 1 Comm...

Linux kernel 安全漏洞

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 allowing small header caches to be used with large MAXSKBFRAGS values, which may result in a warning...

Linux kernel 安全漏洞

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 Linux kernel that stems from a null pointer dereference issue in skbsegmentlist...

kernel: ipv4: Fix uninit-value access in __ip_make_skb()

In the Linux kernel, the following vulnerability has been resolved: ipv4: Fix uninit-value access in ipmakeskb KMSAN reported uninit-value access in ipmakeskb 1. ipmakeskb tests HDRINCL to know if the skb has icmphdr. However, HDRINCL can cause a race condition. If calling setsockopt2 with...

The vulnerability of the __ip6_make_skb() function in the net/ipv6/ip6_output.c module of the IPv6 protocol implementation in the Linux operating system allows a attacker to cause a service failure.

The vulnerability of the ip6makeskb function in the net/ipv6/ip6output.c module of the Linux operating system’s IPv6 kernel implementation is related to the use of an uninitialized resource. Exploiting this vulnerability could allow a attacker to cause a service failure...

CVE-2025-21864

In the Linux kernel, the following vulnerability has been resolved: tcp: drop secpath at the same time as we currently drop dst Xiumei reported hitting the WARN in xfrm6tunnelnetexit while running tests that boil down to: - create a pair of netns - run a basic TCP test over ipcomp6 - delete the...

UBUNTU-CVE-2025-21864

In the Linux kernel, the following vulnerability has been resolved: tcp: drop secpath at the same time as we currently drop dst Xiumei reported hitting the WARN in xfrm6tunnelnetexit while running tests that boil down to: - create a pair of netns - run a basic TCP test over ipcomp6 - delete the...

UBUNTU-CVE-2025-21852

In the Linux kernel, the following vulnerability has been resolved: net: Add rxskb of kfreeskb to rawtpnullargs. Yan Zhai reported a BPF prog could trigger a null-ptr-deref 0 in tracekfreeskb if the prog does not check if rxsk is NULL. Commit c53795d48ee8 "net: add rxsk to tracekfreeskb" added rx...

CVE-2025-21864 tcp: drop secpath at the same time as we currently drop dst

In the Linux kernel, the following vulnerability has been resolved: tcp: drop secpath at the same time as we currently drop dst Xiumei reported hitting the WARN in xfrm6tunnelnetexit while running tests that boil down to: - create a pair of netns - run a basic TCP test over ipcomp6 - delete the...

CVE-2025-21855 ibmvnic: Don't reference skb after sending to VIOS

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Don't reference skb after sending to VIOS Previously, after successfully flushing the xmit buffer to VIOS, the txbytes stat was incremented by the length of the skb. It is invalid to access the skb memory after sending t...

CVE-2025-21855 ibmvnic: Don't reference skb after sending to VIOS

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Don't reference skb after sending to VIOS Previously, after successfully flushing the xmit buffer to VIOS, the txbytes stat was incremented by the length of the skb. It is invalid to access the skb memory after sending t...

CVE-2025-21855

In the Linux kernel, the following vulnerability has been resolved: ibmvnic: Don't reference skb after sending to VIOS Previously, after successfully flushing the xmit buffer to VIOS, the txbytes stat was incremented by the length of the skb. It is invalid to access the skb memory after sending t...

CVE-2025-21855

Summary (CVE-2025-21855, Linux kernel): The ibmvnic driver is affected by a use-after-free in ibmvnic_xmit caused by referencing skb memory after flushing the transmit buffer to VIOS. A race between skb length access and memory free (triggered by VIOS interrupts) can lead to a UAF condition, as e...

Linux Distros Unpatched Vulnerability : CVE-2024-56788

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: ethernet: oatc6: fix tx skb race condition between reference pointers There are two skb pointers to manage tx skb's enqueued from n/w stack. waitingtxskb...

Linux Distros Unpatched Vulnerability : CVE-2024-56645

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: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an...

Linux kernel get_initial_state memory misreference vulnerability

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel suffers from a memory misreference vulnerability that stems from the use of a skb in getinitialstate after it has been released, which can be exploited by an...

Linux Distros Unpatched Vulnerability : CVE-2024-26665

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: tunnels: fix out of bounds access when building IPv6 PMTU error If the ICMPv6 error is built...

Linux Distros Unpatched Vulnerability : CVE-2024-35901

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: net: mana: Fix Rx DMA datasize and skboverpanic managetrxbufcfg aligns the RX buffer's DMA...

Linux Distros Unpatched Vulnerability : CVE-2024-27418

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net: mctp: take ownership of skb in mctplocaloutput Currently, mctplocaloutput only takes ownership of skb on success, and we may leak an skb if mctplocaloutput...

Linux Distros Unpatched Vulnerability : CVE-2023-52610

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - net/sched: actct: fix skb leak and crash on ooo frags actct adds skb-users before defragmentation. If frags arrive in order, the last frag's reference is reset...