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CVE-2026-22988— arp: do not assume dev_hard_header() does not change skb->head

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于arp_create错误假设dev_hard_header不改变skb->head，可能导致错误。

CVSS 7.8 · High EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 11

VendorProduct Version RangeStatus
Linux Linux 17e7386234f740f3e7d5e58a47b5847ea34c3bc2< e432dbff342b95fe44645f9a90fcf333c80f4b5e affected
41a1a3140aff295dee8063906f70a514548105e8< 393525dee5c39acff8d6705275d7fcaabcfb7f0a affected
adee129db814474f2f81207bd182bf343832a52e< 70bddc16491ef4681f3569b3a2c80309a3edcdd1 affected
1717357007db150c2d703f13f5695460e960f26c< 029935507d0af6553c45380fbf6feecf756fd226 affected
5fe210533e3459197eabfdbf97327dacbdc04d60< dd6ccec088adff4bdf33e2b2dd102df20a7128fa affected
91a2b25be07ce1a7549ceebbe82017551d2eec92< 949647e7771a4a01963fe953a96d81fba7acecf3 affected
db5b4e39c4e63700c68a7e65fc4e1f1375273476< c92510f5e3f82ba11c95991824a41e59a9c5ed81 affected
6.1.160< 6.1.161 affected
… +3 more rows
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I. Basic Information for CVE-2026-22988

Vulnerability Information
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Vulnerability Title
arp: do not assume dev_hard_header() does not change skb->head
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于arp_create错误假设dev_hard_header不改变skb->head，可能导致错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 17e7386234f740f3e7d5e58a47b5847ea34c3bc2 ~ e432dbff342b95fe44645f9a90fcf333c80f4b5e -
Linux Linux 6.1.160 ~ 6.1.161 -

II. Public POCs for CVE-2026-22988

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III. Intelligence Information for CVE-2026-22988

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Same Patch Batch · Linux · 2026-01-23 · 34 CVEs total

CVE-2026-22984 9.8 CRITICAL libceph: prevent potential out-of-bounds reads in handle_auth_done()
CVE-2025-71159 9.8 CRITICAL btrfs: fix use-after-free warning in btrfs_get_or_create_delayed_node()
CVE-2025-71145 7.8 HIGH usb: phy: isp1301: fix non-OF device reference imbalance
CVE-2026-22980 7.8 HIGH nfsd: provide locking for v4_end_grace
CVE-2025-71155 7.8 HIGH KVM: s390: Fix gmap_helper_zap_one_page() again
CVE-2025-71158 7.8 HIGH gpio: mpsse: ensure worker is torn down
CVE-2025-71146 7.5 HIGH netfilter: nf_conncount: fix leaked ct in error paths
CVE-2025-71150 7.5 HIGH ksmbd: Fix refcount leak when invalid session is found on session lookup
CVE-2026-22992 7.5 HIGH libceph: return the handler error from mon_handle_auth_done()
CVE-2026-22991 7.5 HIGH libceph: make free_choose_arg_map() resilient to partial allocation
CVE-2026-22990 7.5 HIGH libceph: replace overzealous BUG_ON in osdmap_apply_incremental()
CVE-2025-71161 7.5 HIGH dm-verity: disable recursive forward error correction
CVE-2026-22983 net: do not write to msg_get_inq in callee
CVE-2026-22995 ublk: fix use-after-free in ublk_partition_scan_work
CVE-2026-22985 idpf: Fix RSS LUT NULL pointer crash on early ethtool operations
CVE-2026-22986 gpiolib: fix race condition for gdev->srcu
CVE-2026-22987 net/sched: act_api: avoid dereferencing ERR_PTR in tcf_idrinfo_destroy
CVE-2026-22989 nfsd: check that server is running in unlock_filesystem
CVE-2026-22993 idpf: Fix RSS LUT NULL ptr issue after soft reset
CVE-2026-22994 bpf: Fix reference count leak in bpf_prog_test_run_xdp()

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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