kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags

In the Linux kernel, the following vulnerability has been resolved: skbuff: skbsegment, Call zero copy functions before using skbuff frags Commit bf5c25d60861 "skbuff: in skbsegment, call zerocopy functions once per nskb" added the call to zero copy functions in skbsegment. The change introduced ...

kernel: bpf, cpumap: Handle skb as well when clean up ptr_ring

An incorrect object type handling flaw was found in the Linux kernel's BPF cpumap implementation in the cleanup path. A local user can trigger this issue by running XDP redirect operations in SKB mode with the cpumap, causing the cleanup code to incorrectly treat socket buffers as XDP frames when...

kernel: wifi: mwifiex: avoid possible NULL skb pointer dereference

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: avoid possible NULL skb pointer dereference In 'mwifiexhandleuaprxforward', always check the value returned by 'skbcopy' to avoid potential NULL pointer dereference in 'mwifiexuapqueuebridgedpkt', and drop original...

kernel: ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: fix NEXTHDRFRAGMENT handling in ip6tnlparsetlvenclim syzbot pointed out 1 that NEXTHDRFRAGMENT handling is broken. Reading fragoff can only be done if we pulled enough bytes to skb-head. Currently we might access...

kernel: ipv4: NULL pointer dereference in ipv4_send_dest_unreach()

A NULL pointer dereference flaw was found in the Linux kernel ipv4 stack. The socket buffer skb was assumed to be associated with a device before calling ipoptionscompile, which is not always the case if the skb is re-routed by ipvs. This issue may allow a local user with CAPNETADMIN privileges t...

kernel: ip6_vti: fix slab-use-after-free in decode_session6

A use-after-free vulnerability was found in the IPv6 VTI Virtual Tunnel Interface implementation in the Linux kernel. When an IPv6 VTI device uses the SFB Stochastic Fair Blue qdisc, the control block cb field of an skb can be modified during packet enqueuing. The decodesession6 function then rea...

SUSE CVE-2022-48637

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxttxint hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run...

SUSE CVE-2022-48651

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

PT-2024-28072

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.37 Description The issue concerns the Linux kernel, where a vulnerability has been resolved by adding BPF PROG TYPE CGROUP SKB attach type enforcement in BPF LINK CREATE. The bpf prog attach function uses...

CVE-2022-48637

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxttxint hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run...

CVE-2022-48651

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

DEBIAN-CVE-2022-48651

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

CVE-2022-48637

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxttxint hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run...

UBUNTU-CVE-2022-48637

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxttxint hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run...

CVE-2022-48637

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxttxint hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run...

CVE-2022-48651 ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

CVE-2022-48651 ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

CVE-2022-48651

CVE-2022-48651 affects the Linux kernel ipvlan path. When an AF_PACKET socket uses PACKET_QDISC_BYPASS and the default xmit path is switched, skb->mac_header may remain at 65535, yielding slab-out-of-bounds in ipvlan_xmit_mode_l2. Root causes: packet_snd() only resets skb->mac_header for SO...

CVE-2022-48651

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...

CVE-2022-48651 ipvlan: Fix out-of-bound bugs caused by unset skb->mac_header

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...