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CVE-2026-53157— net: phonet: free phonet_device after RCU grace period

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 2.6.33版本存在安全漏洞，该漏洞源于释放后重用，可能导致RCU读取者访问已释放的内存。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.13% · P2

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< d59794337ea496042288c7c68356d9b9ca7f46a9 affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763 affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< 2ec8011cce0cd0fc7a5068585d867fc08d508578 affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< 09c9b92c2010481160245244ea8fa1d06d5d4ae0 affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< bd2ab4d800fc26814d89328d87b5f97ef6aa906a affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< 52b8f5ef82c886f7cd24617915e4b1579ddfd001 affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< bff309ea51f1395c1ef8be8b75ce62d28a319113 affected
eeb74a9d45f781ec6f47b9e0a75a6a427b53f165< 71de0177b28da751f407581a4515cf4d762f6296 affected
… +10 more rows
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I. Basic Information for CVE-2026-53157

Vulnerability Information
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Vulnerability Title
net: phonet: free phonet_device after RCU grace period
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonet_device after RCU grace period phonet_device_destroy() removes a phonet_device from the per-net device list with list_del_rcu(), but frees it immediately. RCU readers walking the same list can still hold a pointer to the object after it has been removed, leading to a slab-use-after-free. Use kfree_rcu(), matching the lifetime rule already used by phonet_address_del() for the same object type.
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基金会开源的操作系统Linux所使用的内核。 Linux kernel 2.6.33版本存在安全漏洞，该漏洞源于释放后重用，可能导致RCU读取者访问已释放的内存。
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 eeb74a9d45f781ec6f47b9e0a75a6a427b53f165 ~ d59794337ea496042288c7c68356d9b9ca7f46a9 -
Linux Linux 2.6.33 -

II. Public POCs for CVE-2026-53157

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III. Intelligence Information for CVE-2026-53157

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Patches & Fixes for CVE-2026-53157 (7)

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

CVE-2026-53247 9.8 CRITICAL net: ethernet: mtk_eth_soc: Fix use-after-free in metadata dst teardown
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-2026-53151 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-2026-53221 9.8 CRITICAL ip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()
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-2026-53228 9.8 CRITICAL ipv6: sit: reload inner IPv6 header after GSO offloads
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-2026-53224 9.1 CRITICAL sctp: validate embedded INIT chunk and address list lengths in cookie
CVE-2026-53186 9.1 CRITICAL RDMA/srp: bound SRP_RSP sense copy by the received length
CVE-2026-53240 8.8 HIGH xfrm: iptfs: fix use-after-free on first_skb in __input_process_payload
CVE-2026-53170 8.8 HIGH accel/ethosu: reject DMA commands with uninitialized length
CVE-2026-53248 8.8 HIGH net: airoha: Fix use-after-free in metadata dst teardown
CVE-2026-53159 8.8 HIGH misc: fastrpc: fix DMA address corruption due to find_vma misuse
CVE-2026-53200 8.8 HIGH KVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX
CVE-2026-53188 8.8 HIGH RDMA/core: Validate the passed in fops for ib_get_ucaps()

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-2026-53157

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