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CVE-2026-72153— irqchip/crossbar: Use correct index in crossbar_domain_free()

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 4.1版本存在安全漏洞，该漏洞源于crossbar_domain_free()函数重置域数据后使用已置空的irq_data->hwirq成员作为索引，导致释放错误索引，可能造成越界访问。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 783d31863fb826f1a3754a2d5959a022a1b12d54< 13bdb5140405ff283f9052e65ee1d5c2303765c7 affected
783d31863fb826f1a3754a2d5959a022a1b12d54< 1c48dc6a0c1ef47a9fa24611e60bc2f4ee4dd0df affected
783d31863fb826f1a3754a2d5959a022a1b12d54< ccc3664679763d2d6f067c28729bdff627bb72d0 affected
783d31863fb826f1a3754a2d5959a022a1b12d54< 424130169dc03b84ea604685409726d61bcec859 affected
783d31863fb826f1a3754a2d5959a022a1b12d54< cca649a23a5fc8aae536fc27a0546c67690a4078 affected
783d31863fb826f1a3754a2d5959a022a1b12d54< 36ca587f55a2c04468a89fd16174bb2f78dc04ec affected
783d31863fb826f1a3754a2d5959a022a1b12d54< e5be5d452d5f1efbb3342da2b00029be6c99034e affected
783d31863fb826f1a3754a2d5959a022a1b12d54< 043db005a8d6932dc7d217c86307e9af0bc10ddc affected
… +10 more rows
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I. Basic Information for CVE-2026-72153

Vulnerability Information
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Vulnerability Title
irqchip/crossbar: Use correct index in crossbar_domain_free()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/crossbar: Use correct index in crossbar_domain_free() crossbar_domain_free() resets the domain data and then uses the nulled out irq_data->hwirq member as index to reset the irq_map[] entry and to write the relevant crossbar register with a safe entry. That means it never frees the correct index and keeps the crossbar register connection to the source interrupt active. If it would not reset the domain data, then this would be even worse as irq_data->hwirq holds the source interrupt number, but both the map and register index need the corresponding GIC SPI number and not the source interrupt number. This might even result in an out of bounds access as the source interrupt number can be higher than the maximal index space. Fix this by using the GIC SPI index from the parent domain's irq_data.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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 4.1版本存在安全漏洞，该漏洞源于crossbar_domain_free()函数重置域数据后使用已置空的irq_data->hwirq成员作为索引，导致释放错误索引，可能造成越界访问。
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 783d31863fb826f1a3754a2d5959a022a1b12d54 ~ 13bdb5140405ff283f9052e65ee1d5c2303765c7 -
Linux Linux 4.1 -

II. Public POCs for CVE-2026-72153

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III. Intelligence Information for CVE-2026-72153

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Patches & Fixes for CVE-2026-72153 (7)

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-2026-74279 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-2026-72421 10.0 CRITICAL ipv4: fib: Don't ignore error route in local/main tables.
CVE-2026-72407 10.0 CRITICAL geneve: validate inner network offset in geneve_gro_complete()
CVE-2026-72493 9.9 CRITICAL net: serialize netif_running() check in enqueue_to_backlog()
CVE-2026-72201 9.8 CRITICAL ntfs: validate index entries on reading
CVE-2026-72065 9.8 CRITICAL net: mana: Validate the packet length reported by the NIC
CVE-2026-72064 9.8 CRITICAL net: mana: Sync page pool RX frags for CPU
CVE-2026-74480 9.8 CRITICAL net: bridge: stop fast-leave after deleting a port group
CVE-2026-72191 9.8 CRITICAL ntfs3: validate split-point offset in indx_insert_into_buffer
CVE-2026-72192 9.8 CRITICAL ntfs3: bound to_move in indx_insert_into_root before hdr_insert_head
CVE-2026-74478 9.8 CRITICAL um: vector: fix use-after-free in vector_mmsg_rx()
CVE-2026-72194 9.8 CRITICAL fs/ntfs3: add depth limit to indx_find_buffer to prevent stack overflow
CVE-2026-74269 9.8 CRITICAL bnxt: fix head underflow on XDP head-grow
CVE-2026-72209 9.8 CRITICAL ntfs: validate attribute values on lookup
CVE-2026-72211 9.8 CRITICAL ntfs: grow index root value before reparent header update
CVE-2026-72210 9.8 CRITICAL ntfs: fix off-by-one in mapping pairs decoding bounds checks

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-2026-72153

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