CVE-2026-72451— xfrm: Fix xfrm state cache insertion race
Possible ATT&CK Techniques 1AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 11
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 5e4334dc39443645415450163ff5ff1ee7e79784< 6dab4dec9a49121d079981ac913569f232c06b06 | affected |
81a331a0e72ddc2f75092603d9577bd1a0ca23ad< a1a3360a0c44b8b5c134db2a9d0667b61c9cf523 | affected | ||
81a331a0e72ddc2f75092603d9577bd1a0ca23ad< 041859fd55c81ea55e76d051e39b7b79975b8c7d | affected | ||
81a331a0e72ddc2f75092603d9577bd1a0ca23ad< ddd3d0132920319ac426e12456013eadbae67e15 | affected | ||
6.12.13< 6.12.97 | affected | ||
6.13 | affected | ||
< 6.13 | unaffected | ||
6.12.97≤ 6.12.* | unaffected | ||
| … +3 more rows | |||
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I. Basic Information for CVE-2026-72451
Vulnerability Information
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Vulnerability Title
xfrm: Fix xfrm state cache insertion race
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: Fix xfrm state cache insertion race The xfrm input state cache insertion code checks the validity of the state before acquiring the global xfrm_state_lock. Thus it's possible for someone else to kill the state after it passed the validity check, and then the insertion will add the dead state to the cache. Fix this by moving the validity check inside the lock. This entire function is called on the input path, where BH must be off (e.g., the caller of this function xfrm_input acquires its spinlocks without disabling BH). So there is no need to disable BH here or take the RCU read lock. Remove both and replace them with an assertion that trips if BH is accidentally enabled on some future calling path.
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 6.13版本存在安全漏洞，该漏洞源于xfrm状态缓存插入过程中存在竞争条件，可能导致已失效状态被插入缓存。
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
II. Public POCs for CVE-2026-72451
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-72451 (4)
Same Patch Batch · Linux · 2026-08-15 · 846 CVEs total
| CVE-2026-74280 | 10.0 CRITICAL | crypto: marvell/octeontx - fix DMA cleanup using wrong loop index |
| CVE-2026-72407 | 10.0 CRITICAL | geneve: validate inner network offset in geneve_gro_complete() |
| CVE-2026-74279 | 10.0 CRITICAL | crypto: cavium/cpt - fix DMA cleanup using wrong loop index |
| CVE-2026-72408 | 10.0 CRITICAL | geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint |
| CVE-2026-74309 | 10.0 CRITICAL | vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler |
| CVE-2026-74475 | 10.0 CRITICAL | vxlan: use neigh_ha_snapshot() in route_shortcircuit() |
| 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-2026-72466 | 9.8 CRITICAL | xprtrdma: Fix bcall rep leak and unbounded peek |
| CVE-2026-72249 | 9.8 CRITICAL | netfilter: flowtable: use dst in this direction when pushing IPIP header |
| CVE-2026-72248 | 9.8 CRITICAL | netfilter: flowtable: support IPIP tunnel with direct xmit |
| CVE-2026-72381 | 9.8 CRITICAL | ksmbd: fix use-after-free of fp->owner.name in durable handle owner check |
| CVE-2026-72477 | 9.8 CRITICAL | fs/ntfs3: call _ntfs_bad_inode() when failing to rename |
| CVE-2026-72473 | 9.8 CRITICAL | xprtrdma: Decouple req recycling from RPC completion |
| CVE-2026-72130 | 9.8 CRITICAL | nvmet-auth: reject short AUTH_RECEIVE buffers |
| CVE-2026-72222 | 9.8 CRITICAL | sunrpc: pin svc_xprt across the asynchronous TLS handshake callback |
| CVE-2026-74376 | 9.8 CRITICAL | md/raid10: reset read_slot when reusing r10bio for discard |
| CVE-2026-72226 | 9.8 CRITICAL | batman-adv: tt: prevent TVLV OOB check overflow |
| CVE-2026-74406 | 9.8 CRITICAL | vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive(). |
| CVE-2026-72129 | 9.8 CRITICAL | nvmet-rdma: handle inline data with a nonzero offset |
Showing top 20 of 846 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2026-72451
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