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CVE-2026-46198— batman-adv: fix integer overflow on buff_pos

CVSS 8.8 · High EPSS 0.02% · P4

Possible ATT&CK Techniques 1AI

T1211 · Exploitation for Stealth

Affected Version Matrix 12

VendorProductVersion RangeStatus
LinuxLinuxc6c8fea29769d998d94fcec9b9f14d4b52b349d3< f61499359fa529f0d45a53bf7c573a49eb6322e6affected
c6c8fea29769d998d94fcec9b9f14d4b52b349d3< 974542d1efc48b7e9fe16184e647615cba39969baffected
c6c8fea29769d998d94fcec9b9f14d4b52b349d3< bf872db54f91ffe70104b98c20068b2d5910e018affected
c6c8fea29769d998d94fcec9b9f14d4b52b349d3< b252797bfced986d6d92ec2f4cfcca842ce8aa78affected
c6c8fea29769d998d94fcec9b9f14d4b52b349d3< 0799e5943611006b346b8813c7daf7dd5aa26bfdaffected
2.6.38affected
< 2.6.38unaffected
6.6.140≤ 6.6.*unaffected
… +4 more rows
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I. Basic Information for CVE-2026-46198

Vulnerability Information
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Vulnerability Title
batman-adv: fix integer overflow on buff_pos
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix integer overflow on buff_pos Fixing an integer overflow present in batadv_iv_ogm_send_to_if. The size check is done using the int type in batadv_iv_ogm_aggr_packet whereas the buff_pos variable uses the s16 type. This could lead to an out-of-bound read.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于batman-adv中buff_pos存在整数溢出，由于大小检查使用int类型而buff_pos使用s16类型，可能导致越界读取。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux c6c8fea29769d998d94fcec9b9f14d4b52b349d3 ~ f61499359fa529f0d45a53bf7c573a49eb6322e6 -
LinuxLinux 2.6.38 -

II. Public POCs for CVE-2026-46198

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III. Intelligence Information for CVE-2026-46198

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Patches & Fixes for CVE-2026-46198 (5)

Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total

CVE-2026-461359.8 CRITICALnvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-461379.8 CRITICALmptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-461959.8 CRITICALsmb: client: validate dacloffset before building DACL pointers
CVE-2026-461159.8 CRITICALblock: add pgmap check to biovec_phys_mergeable
CVE-2026-461859.1 CRITICALsmb/client: fix out-of-bounds read in symlink_data()
CVE-2026-461199.1 CRITICALlibceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-461559.1 CRITICALsmb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-461528.8 HIGHwifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-461258.8 HIGHwifi: mac80211: remove station if connection prep fails
CVE-2026-461748.8 HIGHx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-462388.8 HIGHbatman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-461138.8 HIGHKVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-461668.8 HIGHwifi: mac80211: use safe list iteration in radar detect work
CVE-2026-462128.8 HIGHbatman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-461388.1 HIGHBluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-462328.1 HIGHHID: playstation: Clamp num_touch_reports
CVE-2026-462097.8 HIGHdrm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()
CVE-2026-462107.8 HIGHmedia: iris: fix use-after-free of fmt_src during MBPF check
CVE-2026-461817.8 HIGHRDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()
CVE-2026-462277.8 HIGHsctp: revalidate list cursor after sctp_sendmsg_to_asoc() in SCTP_SENDALL

Showing top 20 of 138 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46198

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