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CVE-2026-72319— ipvs: ensure inner headers in ICMP errors are in headroom

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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于IPVS在处理来自隧道的ICMP错误时，使用pskb_pull()剥离外部头部后，未确保内部IP头位于skb headroom中，且未充分检查内部头长度，可能导致拒绝服务或内存访问异常。

CVSS 9.8 · Critical EPSS 0.76% · P52

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< 19657b3a17b774ae4e2f2635b5ae8638c9344a40 affected
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< dac813101914c21219ac221a60a31a11bc90e7ec affected
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< dd22f74a09e25ca298ced0a3763ef353242cb78d affected
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< 9bc9b95aee2b2e3f1301a16a67ee504960402875 affected
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< a735f9964a3d9ed97daf9b08507f8b5bcafe6326 affected
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< 8f48cfe657409fb5c7ba0521b14da6d47546d9cf affected
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< 92185d6f7819bc558939ae83de7b1abe90e3b5c2 affected
f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e< 3f7a535ff0fa627a0132803e4c2f903ceffcbc1c affected
… +10 more rows
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I. Basic Information for CVE-2026-72319

Vulnerability Information
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Vulnerability Title
ipvs: ensure inner headers in ICMP errors are in headroom
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: ipvs: ensure inner headers in ICMP errors are in headroom Sashiko points out that after stripping the outer headers with pskb_pull() we should ensure the inner IP headers in ICMP errors from tunnels are present in the skb headroom for functions like ipv4_update_pmtu(), icmp_send() and IP_VS_DBG(). Also, add more checks for the length of the inner headers.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于IPVS在处理来自隧道的ICMP错误时，使用pskb_pull()剥离外部头部后，未确保内部IP头位于skb headroom中，且未充分检查内部头长度，可能导致拒绝服务或内存访问异常。
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 f2edb9f7706dcb2c0d9a362b2ba849efe3a97f5e ~ 19657b3a17b774ae4e2f2635b5ae8638c9344a40 -
Linux Linux 3.7 -

II. Public POCs for CVE-2026-72319

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III. Intelligence Information for CVE-2026-72319

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Patches & Fixes for CVE-2026-72319 (7)

Same Patch Batch · Linux · 2026-08-15 · 845 CVEs total

CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72472 9.8 CRITICAL nfs: use nfsi->rwsem to protect traversal of the file lock list
CVE-2026-74428 9.8 CRITICAL rxrpc: Fix double unlock in rxrpc_recvmsg()
CVE-2026-72473 9.8 CRITICAL xprtrdma: Decouple req recycling from RPC completion
CVE-2026-74433 9.8 CRITICAL rxrpc: Fix UAF in rxgk_issue_challenge()
CVE-2026-72098 9.8 CRITICAL dm-verity: fix buffer overflow in FEC calculation
CVE-2026-74434 9.8 CRITICAL rxrpc: Don't move a peeked OOB message onto the pending queue
CVE-2026-72299 9.8 CRITICAL tipc: restrict socket queue dumps in enqueue tracepoints
CVE-2026-72477 9.8 CRITICAL fs/ntfs3: call _ntfs_bad_inode() when failing to rename
CVE-2026-72249 9.8 CRITICAL netfilter: flowtable: use dst in this direction when pushing IPIP header
CVE-2026-72251 9.8 CRITICAL netfilter: nf_nat_sip: reload possible stale data pointer
CVE-2026-72130 9.8 CRITICAL nvmet-auth: reject short AUTH_RECEIVE buffers
CVE-2026-72248 9.8 CRITICAL netfilter: flowtable: support IPIP tunnel with direct xmit

Showing top 20 of 845 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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