CVE-2024-26863

CVE-2024-26863 : In the Linux kernel, a vulnerability in the HSR/PRP framing layer allowed an uninitialized value to be accessed when the Ethernet header indicates a PRP/HSR packet but is not followed by an HSR tag. The issue arises in hsr_get_node() and can lead to uninit-value reads as shown by...

CVE-2024-26863 hsr: Fix uninit-value access in hsr_get_node()

In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in hsrgetnode KMSAN reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in hsrgetnode+0xa2e/0xa40 net/hsr/hsrframereg.c:2...

CVE-2024-26863 hsr: Fix uninit-value access in hsr_get_node()

In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in hsrgetnode KMSAN reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in hsrgetnode+0xa2e/0xa40 net/hsr/hsrframereg.c:2...

CVE-2024-26863

In the Linux kernel, the following vulnerability has been resolved: hsr: Fix uninit-value access in hsrgetnode KMSAN reported the following uninit-value access issue 1: ===================================================== BUG: KMSAN: uninit-value in hsrgetnode+0xa2e/0xa40 net/hsr/hsrframereg.c:2...

CVE-2024-26857 geneve: make sure to pull inner header in geneve_rx()

In the Linux kernel, the following vulnerability has been resolved: geneve: make sure to pull inner header in geneverx syzbot triggered a bug in geneverx 1 Issue is similar to the one I fixed in commit 8d975c15c0cd "ip6tunnel: make sure to pull inner header in ip6tnlrcv" We have to save...

CVE-2024-26857

CVE-2024-26857 affects the Linux kernel’s geneve_rx path in drivers/net/geneve.c, where skb->network_header must be saved before calling pskb_inet_may_pull() to recompute the network header after pulling headers. The issue is tied to uninitialized values in IP_ECN_decapsulate and the chain lea...

CVE-2024-26635

In the Linux kernel, the following vulnerability has been resolved: llc: Drop support for ETHPTR8022. syzbot reported an uninit-value bug below. 0 llc supports ETHP8022 0x0004 and used to support ETHPTR8022 0x0011, and syzbot abused the latter to trigger the bug. write$tunr0,...

CVE-2024-26635

In the Linux kernel, the following vulnerability has been resolved: llc: Drop support for ETHPTR8022. syzbot reported an uninit-value bug below. 0 llc supports ETHP8022 0x0004 and used to support ETHPTR8022 0x0011, and syzbot abused the latter to trigger the bug. write$tunr0,...

CVE-2024-26638

In the Linux kernel, the following vulnerability has been resolved: nbd: always initialize struct msghdr completely syzbot complains that msg-msggetinq value can be uninitialized 1 struct msghdr got many new fields recently, we should always make sure their values is zero by default. 1 BUG: KMSAN...

UBUNTU-CVE-2024-26633

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...

CVE-2024-26641 ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: make sure to pull inner header in ip6tnlrcv syzbot found ip6tnlrcv could access unitiliazed data 1. Call pskbinetmaypull to fix this, and initialize ipv6h variable after this call as it can change skb-head. 1 BUG: KMSA...

CVE-2024-26641

In the Linux kernel, the following vulnerability has been resolved: ip6tunnel: make sure to pull inner header in ip6tnlrcv syzbot found ip6tnlrcv could access unitiliazed data 1. Call pskbinetmaypull to fix this, and initialize ipv6h variable after this call as it can change skb-head. 1 BUG: KMSA...

CVE-2024-26635

CVE-2024-26635 affects the Linux kernel LLС path. The issue arises from legacy support for ETH_P_TR_802_2 in 802.2 LLC handling, where llc_conn_handler/llc_pdu_decode paths initialized saddr/daddr.mac only for ETH_P_802_2, causing reads of garbage in other protocols (e.g., ETH_P_TR_802_2). The bu...

CVE-2024-26635 llc: Drop support for ETH_P_TR_802_2.

In the Linux kernel, the following vulnerability has been resolved: llc: Drop support for ETHPTR8022. syzbot reported an uninit-value bug below. 0 llc supports ETHP8022 0x0004 and used to support ETHPTR8022 0x0011, and syzbot abused the latter to trigger the bug. write$tunr0,...

CVE-2024-26633 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...

CVE-2021-47101

In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asixmdioread asixreadcmd may read less than sizeofsmsr bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asixcheckhostenable drivers/net/usb/asixcommon.c:82 inline...

CVE-2023-52528

In the Linux kernel, the following vulnerability has been resolved: net: usb: smsc75xx: Fix uninit-value access in smsc75xxreadreg syzbot reported the following uninit-value access issue: ===================================================== BUG: KMSAN: uninit-value in smsc75xxwaitready...

CVE-2023-52577

An out-of-bounds access flaw was found in dccpv4err and dccpv6err in the Linux kernel. This may lead to a crash...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asixmdioread asixreadcmd may read less than sizeofsmsr bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asixcheckhostenable drivers/net/usb/asixcommon.c:82 inline...

CVE-2021-47101

In the Linux kernel, the following vulnerability has been resolved: asix: fix uninit-value in asixmdioread asixreadcmd may read less than sizeofsmsr bytes and in this case smsr will be uninitialized. Fail log: BUG: KMSAN: uninit-value in asixcheckhostenable drivers/net/usb/asixcommon.c:82 inline...