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CVE-2026-68311— wifi: mt76: mt7925: guard link STA in decap offload

AI Predicted 7.8 Difficulty: Easy EPSS 0.17% · P7

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinuxb859ad65309a5f1654e8b284de582831fc88e2d8< 1e608cae1ba0b4a600b752efa223fd2be376b143affected
b859ad65309a5f1654e8b284de582831fc88e2d8< f1ee53e08fdd2906e90c6a6d71e1368fcd52bfc3affected
b859ad65309a5f1654e8b284de582831fc88e2d8< d86883f7e8f03a5b81b4e59f2c0b6c05f79e01fdaffected
b859ad65309a5f1654e8b284de582831fc88e2d8< 96ea44f2269f30364cffa054ee3a87e595bef0d4affected
6.11affected
< 6.11unaffected
6.12.101≤ 6.12.*unaffected
6.18.42≤ 6.18.*unaffected
… +2 more rows
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I. Basic Information for CVE-2026-68311

Vulnerability Information
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Vulnerability Title
wifi: mt76: mt7925: guard link STA in decap offload
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: guard link STA in decap offload mt7925_sta_set_decap_offload() iterates over the vif valid_links mask when updating decap offload state for an MLO station. The station may not have a link STA for every valid link of the vif, so mt792x_sta_to_link() can return NULL for a link that belongs to the vif but not to the station. The function currently dereferences mlink before checking whether the link WCID is ready. If mlink is NULL, setting or clearing MT_WCID_FLAG_HDR_TRANS dereferences a NULL pointer. Skip links without a station link before touching mlink->wcid.
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 6.11版本存在安全漏洞，该漏洞源于mt7925_sta_set_decap_offload函数在处理MLO station时未验证link STA是否存在，对空指针mlink进行解引用，可能导致空指针取消引用。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux b859ad65309a5f1654e8b284de582831fc88e2d8 ~ 1e608cae1ba0b4a600b752efa223fd2be376b143 -
LinuxLinux 6.11 -

II. Public POCs for CVE-2026-68311

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III. Intelligence Information for CVE-2026-68311

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Patches & Fixes for CVE-2026-68311 (4)

Same Patch Batch · Linux · 2026-08-10 · 344 CVEs total

CVE-2026-681379.8 CRITICALnet/x25: fix use-after-free in x25_kill_by_neigh()
CVE-2026-683009.8 CRITICALsctp: auth: verify auth requirement when auth_chunk is NULL
CVE-2026-681549.8 CRITICALlibceph: reject zero bucket types in crush_decode
CVE-2026-681569.8 CRITICALlibceph: refresh auth->authorizer_buf{,_len} after authorizer update
CVE-2026-681589.8 CRITICALlibceph: Fix multiplication overflow in decode_new_up_state_weight()
CVE-2026-681599.8 CRITICALlibceph: bound pg_{temp,upmap,upmap_items} length to CEPH_PG_MAX_SIZE
CVE-2026-681609.8 CRITICALceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
CVE-2026-681619.8 CRITICALsctp: close UDP tunnel sockets during netns teardown
CVE-2026-681449.8 CRITICALphonet: pep: fix use-after-free in pep_get_sb()
CVE-2026-681709.8 CRITICALmptcp: fix stale skb->sk reference on subflow close
CVE-2026-683029.8 CRITICALamt: re-read skb header pointers after every pull
CVE-2026-681369.8 CRITICALnet: gro: fix double aggregation of flush-marked skbs
CVE-2026-681179.8 CRITICALtipc: clear sock->sk on the failed-insert path in tipc_sk_create()
CVE-2026-681239.8 CRITICALopenvswitch: fix GSO userspace truncation underflow
CVE-2026-684269.8 CRITICALxfrm: fix stale skb->prev after async crypto steals a GSO segment
CVE-2026-681279.8 CRITICALila: reload IPv6 header after pskb_may_pull in checksum adjust
CVE-2026-683889.8 CRITICALsmb/client: handle overlapping allocated ranges in fallocate
CVE-2026-683859.8 CRITICALs390/checksum: Fix csum_partial() without vector facility
CVE-2026-683819.8 CRITICALksmbd: pin conn during async oplock break notification
CVE-2026-681249.6 CRITICALmctp: serial: handle zero-length frames to prevent rx buffer overflow

Showing top 20 of 344 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-68311

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