CVE-2026-22988

arp: do not assume dev_hard_header() does not change skb->head

7.8 HighFix available

In the Linux kernel, the following vulnerability has been resolved:

arp: do not assume dev_hard_header() does not change skb->head

arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged.

A recent commit broke this assumption.

Initialize @arp pointer after dev_hard_header() call.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.14%Up 0.1 points since Jan 24, 2026

What each source reports

CVE List Score used 7.8

arp: do not assume dev_hard_header() does not change skb->head

In the Linux kernel, the following vulnerability has been resolved:

arp: do not assume dev_hard_header() does not change skb->head

arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged.

A recent commit broke this assumption.

Initialize @arp pointer after dev_hard_header() call.

Record: CVE-2026-22988
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

EUVDEUVD-2026-4299 7.8

In the Linux kernel, the following vulnerability has been resolved:

arp: do not assume dev_hard_header() does not change skb->head

arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged.

A recent commit broke this assumption.

Initialize @arp pointer after dev_hard_header() call.

Record: EUVD-2026-4299
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-5fwh-qcfv-38cc 5.5

In the Linux kernel, the following vulnerability has been resolved: arp: do not assume...

In the Linux kernel, the following vulnerability has been resolved:

arp: do not assume dev_hard_header() does not change skb->head

arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged.

A recent commit broke this assumption.

Initialize @arp pointer after dev_hard_header() call.

Record: GHSA-5fwh-qcfv-38cc
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

NVD 7.8

In the Linux kernel, the following vulnerability has been resolved:

arp: do not assume dev_hard_header() does not change skb->head

arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged.

A recent commit broke this assumption.

Initialize @arp pointer after dev_hard_header() call.

Record: CVE-2026-22988
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVBELL-CVE-2026-22988 5.5

Record: BELL-CVE-2026-22988
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSV 7.8

arp: do not assume dev_hard_header() does not change skb->head

In the Linux kernel, the following vulnerability has been resolved:

arp: do not assume dev_hard_header() does not change skb->head

arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged.

A recent commit broke this assumption.

Initialize @arp pointer after dev_hard_header() call.

Record: CVE-2026-22988
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

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OSVDEBIAN-CVE-2026-22988 5.5

In the Linux kernel, the following vulnerability has been resolved: arp: do not assume dev_hard_header() does not change skb->head arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged. A recent commit broke this assumption. Initialize @arp pointer after dev_hard_header() call.

Record: DEBIAN-CVE-2026-22988
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-22988 5.5

Record: UBUNTU-CVE-2026-22988
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVCLSA-2026-1789898700 No score

kernel: Fix of 163 CVEs

drm/amdgpu/sdma6.0: replace BUG_ON() with WARN_ON() {CVE-2026-68251}
amd/amdkfd: sync all devices to wait all processes being evicted {CVE-2024-36949}
Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted {CVE-2024-36909}
Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl {CVE-2024-36912}
xfs: save ailp before dropping the AIL lock in push callbacks {CVE-2026-31454}
net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak {CVE-2026-43041}
netfilter: nf_conntrack: destroy stale expectfn expectations on unregister {CVE-2026-53349}
cifs: avoid NULL pointer dereference in dbg call {CVE-2025-37844}
fs/notify: call exportfs_encode_fid with s_umount {CVE-2025-40237}
cifs: fix potential oops in cifs_oplock_break {CVE-2023-54258}
pstore/ram: fix buffer overflow in persistent_ram_save_old() {CVE-2026-46253}
Bluetooth: ISO: fix iso_conn related locking and validity issues {CVE-2023-54164}
netfilter: nft_set_rbtree: check for partial overlaps in anonymous sets {CVE-2026-45873}
ext4: always drain queued discard work in ext4_mb_release() {CVE-2026-43065}
ipvs: Defer ip_vs_ftp unregister during netns cleanup {CVE-2025-40018}
Bluetooth: MGMT: Fix memory leak in set_ssp_complete {CVE-2026-23151}
sctp: prevent possible shift-out-of-bounds in sctp_transport_update_rto {CVE-2025-40281}
fscache: Use wait_on_bit() to wait for the freeing of relinquished volume {CVE-2023-52982}
libceph: prevent potential out-of-bounds reads in process_message_header() {CVE-2026-43406}
netfilter: nf_tables: reject immediate NF_QUEUE verdict {CVE-2026-43024}
ext4: add i_data_sem protection in ext4_destroy_inline_data_nolock() {CVE-2025-68261}
bpf, sockmap: Fix af_unix iter deadlock {CVE-2026-53035}
sctp: stream: fully roll back denied add-stream state {CVE-2026-52929}
netfilter: xt_CT: drop pending enqueued packets on template removal {CVE-2026-23391}
netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() {CVE-2026-23457}
libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply() {CVE-2026-43407}
af_unix: read UNIX_DIAG_VFS data under unix_state_lock {CVE-2026-31673}
jbd2: avoid bug_on in jbd2_journal_get_create_access() when file system corrupted {CVE-2025-68337}
Bluetooth: Fix NULL pointer deference on eir_get_service_data {CVE-2025-38304}
net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption {CVE-2026-31533}
fsnotify: do not generate ACCESS/MODIFY events on child for special files {CVE-2025-68788}
isofs: validate Rock Ridge CE continuation extent against volume size {CVE-2026-46303}
net: strparser: fix skb_head leak in strp_abort_strp() {CVE-2026-46102}
sctp: fix uninit-value in __sctp_rcv_asconf_lookup() {CVE-2026-53225}
xfs: don't swallow dquot recovery verification errors {CVE-2026-80529}
xfs: dquot recovery does not validate the recovered dquot {CVE-2026-80529}
bpf: tcp: fix double sock release on batch realloc {CVE-2026-64575}
bpf: tcp: Fix use-after-free in bpf_iter_tcp_established_batch() {CVE-2026-74714}
bpf: tcp: Avoid socket skips and repeats during iteration {CVE-2026-74714}
bpf: tcp: Use bpf_tcp_iter_batch_item for bpf_tcp_iter_state batch items {CVE-2026-74714}
bpf: tcp: Get rid of st_bucket_done {CVE-2026-74714}
bpf: tcp: Make sure iter->batch always contains a full bucket snapshot {CVE-2026-64575}
bpf: tcp: Make mem flags configurable through bpf_iter_tcp_realloc_batch {CVE-2026-74714}
USB: ldusb: fix use-after-free on disconnect race {CVE-2026-64343}
NFS: Decrement refcounts if allocating nfs_free_stateid_data fails {CVE-2026-74730}
NFS: Pin the 'struct nfs_server' during a FREE_STATEID call {CVE-2026-74730}
net/atm: fix slab-out-of-bounds read in vcc_setsockopt() {CVE-2026-74689}
net: Make copy_safe_from_sockptr() match documentation {CVE-2026-74689}
net: add copy_safe_from_sockptr() helper {CVE-2026-74689}
xfs: close crash window in attr dabtree…

Record: CLSA-2026-1789898700
Updated: 2026-11-02

OSVCLSA-2026-1791800936 No score

kernel: Fix of 191 CVEs

drm/amdgpu/vcn: fix integer overflow in dec_msg buffer count check {CVE-2026-89818}
drm/amdgpu/vcn4: Avoid overflow on msg bound check {CVE-2026-46199}
drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg {CVE-2026-46199}
drm/amdgpu/vcn3: Avoid overflow on msg bound check {CVE-2026-46230}
drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg {CVE-2026-46230}
openvswitch: vport: fix self-deadlock on release of tunnel ports {CVE-2026-46165}
openvswitch: defer tunnel netdev_put to RCU release {CVE-2026-31678}
ALSA: usb: Fix UAF at delayed release of MIDI2 EPs {CVE-2026-74642}
ALSA: usb-audio: fix use-after-free in ump_to_endpoint() {CVE-2026-74501}
NFS: Decrement refcounts if allocating nfs_free_stateid_data fails {CVE-2026-74730}
NFS: Pin the 'struct nfs_server' during a FREE_STATEID call {CVE-2026-74730}
exec: do_close_on_exec() before taking exec_update_lock {CVE-2026-64371}
proc: Fix broken error paths for namespace links {CVE-2026-64371}
proc: protect ptrace_may_access() with exec_update_lock (part 1) {CVE-2026-64371}
ALSA: timer: Clear SNDRV_TIMER_IFLG_DEAD once the close completes {CVE-2026-74503}
ALSA: timer: Forcibly close timer instances at closing {CVE-2026-53193}
usb: typec: ucsi: Fix race condition and ordering in port unregistration {CVE-2026-74441}
arp: do not assume dev_hard_header() does not change skb->head {CVE-2026-22988}
netfilter: nft_ct: fix use-after-free in timeout object destroy {CVE-2026-31665}
md/raid10: fix writes_pending and barrier reference leaks on discard failures {CVE-2026-72438}
md/raid10: fix deadlock with check operation and nowait requests {CVE-2026-46050}
mm: introduce and use {pgd,p4d}_populate_kernel() {CVE-2025-39844}
vsock/virtio: fix zerocopy completion for multi-skb sends {CVE-2026-53365}
vsock/virtio: fix MSG_ZEROCOPY pinned-pages accounting {CVE-2026-52994}
mm: do file ownership checks with the proper mount idmap {CVE-2026-64294}
udf: validate VAT header length against the VAT inode size {CVE-2026-64323}
SUNRPC: auth_gss: fix memory leaks in XDR decoding error paths {CVE-2026-45870}
Bluetooth: L2CAP: reject BR/EDR signaling packets over MTUsig {CVE-2026-53208}
slip: bound decode() reads against the compressed packet length {CVE-2026-45843}
net: tls: fix strparser anchor skb leak on offload RX setup failure {CVE-2026-52974}
netfilter: nf_tables: unconditionally bump set->nelems before insertion {CVE-2026-23272}
rbd: Reset positive result codes to zero in object map update path {CVE-2026-68131}
netfilter: ctnetlink: fix use-after-free in ctnetlink_dump_exp_ct() {CVE-2026-23458}
mptcp: fix 'scheduling while atomic' in mptcp_pm_nl_append_new_local_addr {CVE-2025-21938}
bpf: Fix NULL deref in map_kptr_match_type for scalar regs {CVE-2026-53032}
bpf: Explicitly check accesses to bpf_sock_addr {CVE-2025-40078}
nexthop: Forbid FDB status change while nexthop is in a group {CVE-2025-39980}
bpf: Fix undefined behavior in interpreter sdiv/smod for INT_MIN {CVE-2026-31525}
x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range() {CVE-2025-21913}
ptr_ring: do not block hard interrupts in ptr_ring_resize_multiple() {CVE-2024-57994}
drm/i915/vrr: require valid min/max vfreq for VRR {CVE-2026-68254}
libceph: handle rbtree insertion error in decode_choose_args() {CVE-2026-52954}
gfs2: prevent NULL pointer dereference during unmount {CVE-2026-53048}
smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path {CVE-2026-31708}
ext4: reject mount if bigalloc with s_first_data_block != 0 {CVE-2026-31447}
NFSD: Fix crash in nfsd4_read_release() {CVE-2025-40324}
netfilter: x_tables: guard option walkers against 1-byte tail reads {CVE-2026-43452}
smb: client: Fix refcount leak for cifs_sb_tlink {CVE-2025-40103}
smb: client: harden POSIX SID length parsing {CVE-2026-64380}
crypto: qat - fix VF2PF work teardown race in adf_disable_sriov() {CVE-2026-64438}
bpf: Allow LPM map access from sleepable…

Record: CLSA-2026-1791800936
Updated: 2026-11-02

OSVMGASA-2026-0097 No score

Updated kernel, kmod-virtualbox & kmod-xtables-addons packages fix security vulnerabilities

Upstream kernel version 6.6.130 fixes bugs and vulnerabilities. The kmod-virtualbox & kmod-xtables-addons packages have been updated to work with this new kernel.

Record: MGASA-2026-0097
Updated: 2026-11-02

OSVMGASA-2026-0098 No score

Updated kernel-linus packages fix security vulnerabilities

Vanilla upstream kernel version 6.6.130 fixes bugs and vulnerabilities. For information about the vulnerabilities see the links.

Record: MGASA-2026-0098
Updated: 2026-11-02

OSVopenSUSE-SU-2026:20287-1 No score