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CVE-2026-72496— RDMA/bnxt_re: Proper rollback if the ioremap fails

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bnxt_qplib_alloc_dpi函数在ioremap失败时仍返回成功且未正确回滚，可能导致资源管理错误。

CVSS 9.2 · Critical EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux 0ac20faf5d837b59fb4c041ea320932ed47fd67f< 00444baa8f74d220764ee5903f60759c120cabd5 affected
0ac20faf5d837b59fb4c041ea320932ed47fd67f< 3c69ff7f4a761e18ce8abfa0c98e12097b39adaa affected
0ac20faf5d837b59fb4c041ea320932ed47fd67f< f956477c343aa73e9d9c8d6ebf32efac7cd4f4e2 affected
0ac20faf5d837b59fb4c041ea320932ed47fd67f< 303f6fef95df5e5316970746d861cf6daeeca77f affected
0ac20faf5d837b59fb4c041ea320932ed47fd67f< 87267803a8c824616eb147c5dad7030a5db6f878 affected
6.5 affected
< 6.5 unaffected
6.6.158≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-72496

Vulnerability Information
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Vulnerability Title
RDMA/bnxt_re: Proper rollback if the ioremap fails
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Proper rollback if the ioremap fails bnxt_qplib_alloc_dpi returns success even if ioremap fails. Add the proper rollback when the ioremap fails and return -ENOMEM status.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/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bnxt_qplib_alloc_dpi函数在ioremap失败时仍返回成功且未正确回滚，可能导致资源管理错误。
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 0ac20faf5d837b59fb4c041ea320932ed47fd67f ~ 00444baa8f74d220764ee5903f60759c120cabd5 -
Linux Linux 6.5 -

II. Public POCs for CVE-2026-72496

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III. Intelligence Information for CVE-2026-72496

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Patches & Fixes for CVE-2026-72496 (3)

Other References for CVE-2026-72496 (2)

Same Patch Batch · Linux · 2026-08-15 · 844 CVEs total

CVE-2026-74279 10.0 CRITICAL crypto: cavium/cpt - fix DMA cleanup using wrong loop index
CVE-2026-74280 10.0 CRITICAL crypto: marvell/octeontx - fix DMA cleanup using wrong loop index
CVE-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-74475 10.0 CRITICAL vxlan: use neigh_ha_snapshot() in route_shortcircuit()
CVE-2026-72408 10.0 CRITICAL geneve: gate GRO hint in geneve_gro_complete() on gs->gro_hint
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-74309 10.0 CRITICAL vdpa/octeon_ep: fix IRQ-to-ring mapping in interrupt handler
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72084 9.8 CRITICAL scsi: target: Bound PR-OUT TransportID parsing to the received buffer
CVE-2026-74480 9.8 CRITICAL net: bridge: stop fast-leave after deleting a port group
CVE-2026-72083 9.8 CRITICAL scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE
CVE-2026-74345 9.8 CRITICAL RDMA/siw: Fix endpoint/socket association handling
CVE-2026-72248 9.8 CRITICAL netfilter: flowtable: support IPIP tunnel with direct xmit
CVE-2026-72249 9.8 CRITICAL netfilter: flowtable: use dst in this direction when pushing IPIP header
CVE-2026-74493 9.8 CRITICAL net/smc: fix socket use-after-free during link group termination
CVE-2026-74495 9.8 CRITICAL igbvf: Fix leak in TX DMA error cleanup
CVE-2026-72251 9.8 CRITICAL netfilter: nf_nat_sip: reload possible stale data pointer
CVE-2026-74398 9.8 CRITICAL ipv6: addrconf: bail out of dad_failure when state is no longer POSTDAD
CVE-2026-74401 9.8 CRITICAL dlm: fix add msg handle in send_queue ordered
CVE-2026-72317 9.8 CRITICAL SUNRPC: pin upper rpc_clnt across the TLS connect_worker

Showing top 20 of 844 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-72496

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