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CVE-2026-52913— batman-adv: v: stop OGMv2 on disabled interface

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 4.6版本存在安全漏洞，该漏洞源于当hard_iface被禁用后，batadv_v_ogm_send_meshif()仍可能通过batadv_v_ogm_queue_on_if()分发OGM，导致对mesh_iface指针的空指针取消引用。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 0da0035942d47766c32843143fb5dba7a29cb48c< d7391a2b854a62235539c68e9cbf6fc7910a8e9a affected
0da0035942d47766c32843143fb5dba7a29cb48c< 70c9f6ab0d8f785087fb74fb85464a9a5288bfdb affected
0da0035942d47766c32843143fb5dba7a29cb48c< 040fe8eb34624002071dd21de9824dfe668ce65d affected
0da0035942d47766c32843143fb5dba7a29cb48c< 31dcb9711abd1dcd2080d9fac05c79dd9997d6bf affected
0da0035942d47766c32843143fb5dba7a29cb48c< aad70db50ea3d7dfe30e402b889ff075a293b287 affected
0da0035942d47766c32843143fb5dba7a29cb48c< 1be1e99cbd5b74a69d3f92200ca87cf1bce852db affected
0da0035942d47766c32843143fb5dba7a29cb48c< 4ff461af943efb5e74d09942d5ffee7644d1e1fe affected
0da0035942d47766c32843143fb5dba7a29cb48c< f8ce8b8331a1bc44ad4905886a482214d428b253 affected
… +10 more rows
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I. Basic Information for CVE-2026-52913

Vulnerability Information
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Vulnerability Title
batman-adv: v: stop OGMv2 on disabled interface
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: v: stop OGMv2 on disabled interface When a batadv_hard_iface is disabled, its mesh_iface pointer is set to NULL. However, batadv_v_ogm_send_meshif() may still dispatch OGMs via batadv_v_ogm_queue_on_if() for interfaces that have since lost their mesh_iface association. This results in a NULL pointer dereference when batadv_v_ogm_queue_on_if() unconditionally calls netdev_priv() on the now NULL hard_iface->mesh_iface to retrieve the batadv_priv. It is necessary to ensure that the batadv_v_ogm_queue_on_if() checks that it is using the same mesh_iface for which batadv_v_ogm_send_meshif() was called.
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 4.6版本存在安全漏洞，该漏洞源于当hard_iface被禁用后，batadv_v_ogm_send_meshif()仍可能通过batadv_v_ogm_queue_on_if()分发OGM，导致对mesh_iface指针的空指针取消引用。
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 0da0035942d47766c32843143fb5dba7a29cb48c ~ d7391a2b854a62235539c68e9cbf6fc7910a8e9a -
Linux Linux 4.6 -

II. Public POCs for CVE-2026-52913

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III. Intelligence Information for CVE-2026-52913

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Patches & Fixes for CVE-2026-52913 (8)

Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total

CVE-2026-53049 9.8 CRITICAL gfs2: add some missing log locking
CVE-2026-52993 9.8 CRITICAL tipc: fix double-free in tipc_buf_append()
CVE-2026-52989 9.8 CRITICAL nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
CVE-2026-52986 9.8 CRITICAL netfilter: nf_conntrack_sip: don't use simple_strtoul
CVE-2026-52982 9.8 CRITICAL net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()
CVE-2026-53002 9.8 CRITICAL netfilter: conntrack: remove sprintf usage
CVE-2026-53006 9.8 CRITICAL ipv6: fix possible UAF in icmpv6_rcv()
CVE-2026-53045 9.8 CRITICAL memory: tegra124-emc: Fix dll_change check
CVE-2026-53086 9.8 CRITICAL net: bcmgenet: fix racing timeout handler
CVE-2026-53046 9.8 CRITICAL ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine
CVE-2026-52955 9.8 CRITICAL libceph: Fix potential out-of-bounds access in crush_decode()
CVE-2026-53010 9.8 CRITICAL ksmbd: fix use-after-free in smb2_open during durable reconnect
CVE-2026-53088 9.8 CRITICAL net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
CVE-2026-52914 9.8 CRITICAL batman-adv: fix fragment reassembly length accounting
CVE-2026-53055 9.8 CRITICAL crypto: hisilicon/sec2 - prevent req used-after-free for sec
CVE-2026-52924 9.8 CRITICAL sctp: purge outqueue on stale COOKIE-ECHO handling
CVE-2026-52931 9.8 CRITICAL batman-adv: tp_meter: avoid use of uninit sender vars
CVE-2026-52999 9.1 CRITICAL netfilter: nfnetlink_osf: fix out-of-bounds read on option matching
CVE-2026-53043 9.1 CRITICAL ocfs2/dlm: validate qr_numregions in dlm_match_regions()
CVE-2026-52958 9.1 CRITICAL libceph: Fix potential out-of-bounds access in osdmap_decode()

Showing top 20 of 219 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-52913

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