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CVE-2026-72384— irqchip/ts4800: Fix missing chained handler cleanup on remove

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 4.5版本存在安全漏洞，该漏洞源于irqchip/ts4800驱动在探测期间通过irq_set_chained_handler_and_data()为父中断安装链式处理程序，但移除函数未清除该处理程序，且通过irq_of_parse_and_map()获取的parent_irq未存储，中断映射也未正确处理，导致设备移除后父中断触发时可能访问已释放内存，造成内核崩溃。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux d01f8633d52e4dac5ee598b87d49fd23346ccfd6< b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c affected
d01f8633d52e4dac5ee598b87d49fd23346ccfd6< e6b674dc341c6add7d85bec2ec22caf1aad35795 affected
d01f8633d52e4dac5ee598b87d49fd23346ccfd6< 3f31f49afffa169cd01e6c37568c4df3eb1051af affected
d01f8633d52e4dac5ee598b87d49fd23346ccfd6< 4e8d498d32b6c67d73bb8b317ff316ff37897a3e affected
d01f8633d52e4dac5ee598b87d49fd23346ccfd6< 9ed0dca2aa05908b33ecf0bb15c7953947529542 affected
d01f8633d52e4dac5ee598b87d49fd23346ccfd6< 98bf7e54cec07d514b3575c11896a8b12d50ecc4 affected
4.5 affected
< 4.5 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-72384

Vulnerability Information
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Vulnerability Title
irqchip/ts4800: Fix missing chained handler cleanup on remove
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/ts4800: Fix missing chained handler cleanup on remove The driver installs a chained handler for the parent interrupt during probe using irq_set_chained_handler_and_data(), but the remove function does not clear this handler. This leaves a dangling handler that may be called when the parent interrupt fires after the driver has been removed, potentially accessing freed memory and causing a kernel crash. Additionally, the parent_irq obtained via irq_of_parse_and_map() is not stored, making it inaccessible in the remove function. Moreover, interrupt mappings created during probe are not properly disposed. Fix this by: - Saving parent_irq in probe - Clearing the chained handler with NULL in ts4800_ic_remove() - Disposing all IRQ mappings before domain removal to prevent resource leaks
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 4.5版本存在安全漏洞，该漏洞源于irqchip/ts4800驱动在探测期间通过irq_set_chained_handler_and_data()为父中断安装链式处理程序，但移除函数未清除该处理程序，且通过irq_of_parse_and_map()获取的parent_irq未存储，中断映射也未正确处理，导致设备移除后父中断触发时可能访问已释放内存，造成内核崩溃。
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 d01f8633d52e4dac5ee598b87d49fd23346ccfd6 ~ b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c -
Linux Linux 4.5 -

II. Public POCs for CVE-2026-72384

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III. Intelligence Information for CVE-2026-72384

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Patches & Fixes for CVE-2026-72384 (4)

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

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-2026-74475 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-2026-72408 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-2026-74493 9.8 CRITICAL net/smc: fix socket use-after-free during link group termination
CVE-2026-72323 9.8 CRITICAL ipv4: igmp: Fix potential UAF in igmp_gq_start_timer()
CVE-2026-72463 9.8 CRITICAL xfrm: Fix dev use-after-free in xfrm async resumption
CVE-2026-72069 9.8 CRITICAL locking/rt: Fix the incorrect RCU protection in rt_spin_unlock()
CVE-2026-74345 9.8 CRITICAL RDMA/siw: Fix endpoint/socket association handling
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-2026-72234 9.8 CRITICAL batman-adv: access unicast_ttvn skb->data only after skb realloc
CVE-2026-74376 9.8 CRITICAL md/raid10: reset read_slot when reusing r10bio for discard
CVE-2026-74255 9.8 CRITICAL tipc: fix UAF in tipc_l2_send_msg()
CVE-2026-72339 9.8 CRITICAL qede: fix off-by-one in BD ring consumption on build_skb failure
CVE-2026-72451 9.8 CRITICAL xfrm: Fix xfrm state cache insertion race

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-2026-72384

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