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CVE-2026-72114— can: bcm: validate frame length in bcm_rx_setup() for RTR replies

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 2.6.25版本存在安全漏洞，该漏洞源于bcm_rx_setup()函数未对RTR回复帧的帧长度进行验证。

CVSS 7.8 · High EPSS 0.16% · P6

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux ffd980f976e7fd666c2e61bf8ab35107efd11828< cc1f9569f1c1adf74fa69d6f716a31b58a2fc6ce affected
ffd980f976e7fd666c2e61bf8ab35107efd11828< 204f2b232717bc470ddb9e1da1d27dd9c6ef0caa affected
ffd980f976e7fd666c2e61bf8ab35107efd11828< e061624c0a86c3c26a2bf017e432fbc93ad68f3a affected
ffd980f976e7fd666c2e61bf8ab35107efd11828< 7d966cdee006911d3957e1a4e72cb93c39cd8c1e affected
ffd980f976e7fd666c2e61bf8ab35107efd11828< 1b475c0c72f44622a320a4386ce9e76f85e69bc7 affected
ffd980f976e7fd666c2e61bf8ab35107efd11828< deb6a697cce3f021e731df543597f37a5e54caab affected
ffd980f976e7fd666c2e61bf8ab35107efd11828< 59bfddea64159594feb62ef11b7d7a33c8ee3783 affected
ffd980f976e7fd666c2e61bf8ab35107efd11828< 62ec41f364648be79d54d94d0d240ee326948afd affected
… +10 more rows
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I. Basic Information for CVE-2026-72114

Vulnerability Information
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Vulnerability Title
can: bcm: validate frame length in bcm_rx_setup() for RTR replies
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: can: bcm: validate frame length in bcm_rx_setup() for RTR replies bcm_tx_setup() validates cf->len against the CAN/CAN FD DLC limits before installing frames for TX_SETUP, but bcm_rx_setup() never did the same for the RTR-reply frame configured via RX_SETUP with RX_RTR_FRAME.
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基金会开源的一个操作系统内核。 Linux kernel 2.6.25版本存在安全漏洞，该漏洞源于bcm_rx_setup()函数未对RTR回复帧的帧长度进行验证。
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 ffd980f976e7fd666c2e61bf8ab35107efd11828 ~ cc1f9569f1c1adf74fa69d6f716a31b58a2fc6ce -
Linux Linux 2.6.25 -

II. Public POCs for CVE-2026-72114

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III. Intelligence Information for CVE-2026-72114

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Patches & Fixes for CVE-2026-72114 (5)

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

CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
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-2026-72408 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-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72381 9.8 CRITICAL ksmbd: fix use-after-free of fp->owner.name in durable handle owner check
CVE-2026-72393 9.8 CRITICAL eth: fbnic: don't cache shinfo across skb realloc
CVE-2026-74401 9.8 CRITICAL dlm: fix add msg handle in send_queue ordered
CVE-2026-74406 9.8 CRITICAL vxlan: Fix potential null-ptr-deref in vxlan_gro_prepare_receive().
CVE-2026-72355 9.8 CRITICAL netfs: Fix barriering when walking subrequest list
CVE-2026-72339 9.8 CRITICAL qede: fix off-by-one in BD ring consumption on build_skb failure
CVE-2026-72211 9.8 CRITICAL ntfs: grow index root value before reparent header update
CVE-2026-72194 9.8 CRITICAL fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow
CVE-2026-72351 9.8 CRITICAL gue: validate REMCSUM private option length
CVE-2026-72366 9.8 CRITICAL netfs: Fix netfs_create_write_req() to handle async cache object creation
CVE-2026-72098 9.8 CRITICAL dm-verity: fix buffer overflow in FEC calculation
CVE-2026-72083 9.8 CRITICAL scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE

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

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72114

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