UBUNTU-CVE-2025-21961

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix truesize for mb-xdp-pass case When mb-xdp is set and return is XDPPASS, packet is converted from xdpbuff to skbuff with xdpupdateskbsharedinfo in bnxtxdpbuildskb. bnxtxdpbuildskb passes incorrect truesize argument ...

UBUNTU-CVE-2025-21926

In the Linux kernel, the following vulnerability has been resolved: net: gso: fix ownership in udpgsosegment In udpgsosegment the skb destructor is removed before segmenting the skb but the socket reference is kept as-is. This is an issue if the original skb is later orphaned as we can hit the...

UBUNTU-CVE-2025-21960

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: do not update checksum in bnxtxdpbuildskb The bnxtrxpkt updates ipsummed value at the end if checksum offload is enabled. When the XDP-MB program is attached and it returns XDPPASS, the bnxtxdpbuildskb is called to...

UBUNTU-CVE-2025-21925

In the Linux kernel, the following vulnerability has been resolved: llc: do not use skbget before devqueuexmit syzbot is able to crash hosts 1, using llc and devices not supporting IFFTXSKBSHARING. In this case, e1000 driver calls ethskbpad, while the skb is shared. Simply replace skbget by...

UBUNTU-CVE-2025-21937

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Add check for mgmtallocskb in mgmtremotename Add check for the return value of mgmtallocskb in mgmtremotename to prevent null pointer dereference...

CVE-2025-21961 eth: bnxt: fix truesize for mb-xdp-pass case

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: fix truesize for mb-xdp-pass case When mb-xdp is set and return is XDPPASS, packet is converted from xdpbuff to skbuff with xdpupdateskbsharedinfo in bnxtxdpbuildskb. bnxtxdpbuildskb passes incorrect truesize argument ...

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 an unchecked mgmtallocskb return value that could lead to a null pointer dereference...

SUSE 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...

SUSE CVE-2023-53023

In the Linux kernel, the following vulnerability has been resolved: net: nfc: Fix use-after-free in localcleanup Fix a use-after-free that occurs in kfreeskb called from localcleanup. This could happen when killing nfc daemon e.g. neard after detaching an nfc device. When detaching an nfc device,...

SUSE CVE-2025-21868

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...

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...

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...

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...