SUSE CVE-2025-21890

In the Linux kernel, the following vulnerability has been resolved: idpf: fix checksums set in idpfrxrsc idpfrxrsc uses skbtransportoffsetskb while the transport header is not set yet. This triggers the following warning for CONFIGDEBUGNET=y builds. DEBUGNETWARNONONCE!skbtransportheaderwassetskb...

DEBIAN-CVE-2023-52991

In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer in skbsegmentlist Commit 3a1296a38d0c "net: Support GRO/GSO fraglist chaining." introduced UDP listifyed GRO. The segmentation relies on fraglist being untouched when passing through the network stack. This...

UBUNTU-CVE-2023-52991

In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer in skbsegmentlist Commit 3a1296a38d0c "net: Support GRO/GSO fraglist chaining." introduced UDP listifyed GRO. The segmentation relies on fraglist being untouched when passing through the network stack. This...

CVE-2023-52991 net: fix NULL pointer in skb_segment_list

In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer in skbsegmentlist Commit 3a1296a38d0c "net: Support GRO/GSO fraglist chaining." introduced UDP listifyed GRO. The segmentation relies on fraglist being untouched when passing through the network stack. This...

CVE-2023-52991 net: fix NULL pointer in skb_segment_list

In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer in skbsegmentlist Commit 3a1296a38d0c "net: Support GRO/GSO fraglist chaining." introduced UDP listifyed GRO. The segmentation relies on fraglist being untouched when passing through the network stack. This...

CVE-2025-21891

In the Linux kernel, the following vulnerability has been resolved: ipvlan: ensure network headers are in skb linear part syzbot found that ipvlanprocessv6outbound was assuming the IPv6 network header isis present in skb-head 1 Add the needed pskbnetworkmaypull calls for both IPv4 and IPv6...

AZL-60331 CVE-2025-21891 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: ipvlan: ensure network headers are in skb linear part syzbot found that ipvlanprocessv6outbound was assuming the IPv6 network header isis present in skb-head 1 Add the needed pskbnetworkmaypull calls for both IPv4 and IPv6...

CVE-2025-21891 ipvlan: ensure network headers are in skb linear part

In the Linux kernel, the following vulnerability has been resolved: ipvlan: ensure network headers are in skb linear part syzbot found that ipvlanprocessv6outbound was assuming the IPv6 network header isis present in skb-head 1 Add the needed pskbnetworkmaypull calls for both IPv4 and IPv6...

AZL-62639 CVE-2025-21868 affecting package kernel for versions less than 6.6.117.1-1

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...

DEBIAN-CVE-2025-21867

In the Linux kernel, the following vulnerability has been resolved: bpf, testrun: Fix use-after-free issue in ethskbpkttype KMSAN reported a use-after-free issue in ethskbpkttype1. The cause of the issue was that ethskbpkttype accessed skb's data that didn't contain an Ethernet header. This occur...

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...