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CVE-2026-53159— misc: fastrpc: fix DMA address corruption due to find_vma misuse

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基金会开源的操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于fastrpc_get_args函数中find_vma的误用，当用户提供的指针地址落在返回VMA之前的间隙时，导致DMA地址偏移计算下溢，从而破坏发送给DSP的DMA地址。

CVSS 8.8 · High EPSS 0.13% · P2

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 80f3afd72bd4149c57daf852905476b43bb47647< d43afc412d439ffca1567e7ca8652be22f272b3b affected
80f3afd72bd4149c57daf852905476b43bb47647< 2d0f47e27c1fa718b29c69aa7c96a2c5161bc2c2 affected
80f3afd72bd4149c57daf852905476b43bb47647< 708c17b52c60fe7a57e73b495bdee50f58feb48c affected
80f3afd72bd4149c57daf852905476b43bb47647< d3e26df2e8eb361e6bef096b2fd565476a1f14c4 affected
80f3afd72bd4149c57daf852905476b43bb47647< e69e306a4cccb40a73511350cb280825a556ce3c affected
80f3afd72bd4149c57daf852905476b43bb47647< 53e06f8a3c2b085c31bf1284e2ebcb8036e99625 affected
80f3afd72bd4149c57daf852905476b43bb47647< 7ba7b30ddb04646d4d638f4d8c4718a304bbbddd affected
80f3afd72bd4149c57daf852905476b43bb47647< 464c6ad2aa16e1e1df9d559289199356493d1e00 affected
… +12 more rows
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I. Basic Information for CVE-2026-53159

Vulnerability Information
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Vulnerability Title
misc: fastrpc: fix DMA address corruption due to find_vma misuse
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix DMA address corruption due to find_vma misuse fastrpc_get_args() uses find_vma() to look up the VMA for a user-provided pointer and compute a DMA address offset. When the address falls in a gap before the returned VMA, (ptr & PAGE_MASK) - vma->vm_start underflows, corrupting the DMA address sent to the DSP. Replace find_vma() with vma_lookup(), which returns NULL when the address is not contained within any VMA.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/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基金会开源的操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于fastrpc_get_args函数中find_vma的误用，当用户提供的指针地址落在返回VMA之前的间隙时，导致DMA地址偏移计算下溢，从而破坏发送给DSP的DMA地址。
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 80f3afd72bd4149c57daf852905476b43bb47647 ~ d43afc412d439ffca1567e7ca8652be22f272b3b -
Linux Linux 5.2 -

II. Public POCs for CVE-2026-53159

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III. Intelligence Information for CVE-2026-53159

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Patches & Fixes for CVE-2026-53159 (8)

Same Patch Batch · Linux · 2026-06-25 · 146 CVEs total

CVE-2026-53228 9.8 CRITICAL ipv6: sit: reload inner IPv6 header after GSO offloads
CVE-2026-53247 9.8 CRITICAL net: ethernet: mtk_eth_soc: Fix use-after-free in metadata dst teardown
CVE-2026-53151 9.8 CRITICAL rxrpc: Fix the ACK parser to extract the SACK table for parsing
CVE-2026-53246 9.8 CRITICAL sctp: validate cached peer INIT chunk length in COOKIE_ECHO processing
CVE-2026-53260 9.8 CRITICAL tcp: Add preempt_{disable,enable}_nested() in reqsk_queue_hash_req().
CVE-2026-53175 9.8 CRITICAL inet: frags: fix use-after-free caused by the fqdir_pre_exit() flush
CVE-2026-53176 9.8 CRITICAL IB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN
CVE-2026-53221 9.8 CRITICAL ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()
CVE-2026-53215 9.8 CRITICAL net: mvpp2: refill RX buffers before XDP or skb use
CVE-2026-53216 9.8 CRITICAL net: mvpp2: limit XDP frame size to the RX buffer
CVE-2026-53131 9.4 CRITICAL netfilter: require Ethernet MAC header before using eth_hdr()
CVE-2026-53225 9.1 CRITICAL sctp: fix uninit-value in __sctp_rcv_asconf_lookup()
CVE-2026-53186 9.1 CRITICAL RDMA/srp: bound SRP_RSP sense copy by the received length
CVE-2026-53224 9.1 CRITICAL sctp: validate embedded INIT chunk and address list lengths in cookie
CVE-2026-53171 8.8 HIGH accel/ethosu: fix arithmetic issues in dma_length()
CVE-2026-53248 8.8 HIGH net: airoha: Fix use-after-free in metadata dst teardown
CVE-2026-53240 8.8 HIGH xfrm: iptfs: fix use-after-free on first_skb in __input_process_payload
CVE-2026-53198 8.8 HIGH ksmbd: fix use-after-free of a deferred file_lock on double SMB2_CANCEL
CVE-2026-53188 8.8 HIGH RDMA/core: Validate the passed in fops for ib_get_ucaps()
CVE-2026-53170 8.8 HIGH accel/ethosu: reject DMA commands with uninitialized length

Showing top 20 of 146 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-53159

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