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CVE-2026-68351— wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read

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基金会开源的一个操作系统内核。 Linux kernel 2.6.37版本存在安全漏洞，该漏洞源于carl9170命令回调函数中memcpy长度未正确限制，可能导致越界读取。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.22% · P12

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux a84fab3cbfdc427e7d366f1cc844f27b2084c26c< 38e240996a6a78c94ab07d461fd66e361d55c3c4 affected
a84fab3cbfdc427e7d366f1cc844f27b2084c26c< 2d05c321d27624c413c950278d2dc8e0f44a8950 affected
a84fab3cbfdc427e7d366f1cc844f27b2084c26c< 525036b20ef01d814a7fcd0567d123992e4479fa affected
a84fab3cbfdc427e7d366f1cc844f27b2084c26c< f74e34e66379e487a09009a4f2d42470051672bd affected
a84fab3cbfdc427e7d366f1cc844f27b2084c26c< 500c36649f270de05a56591fcc1aaaa36687958e affected
a84fab3cbfdc427e7d366f1cc844f27b2084c26c< 9aee949c68dc6dccbc54333537b109c53fe2079f affected
a84fab3cbfdc427e7d366f1cc844f27b2084c26c< cb7a38810cf25738176dac32dec7a146b3f959cf affected
a84fab3cbfdc427e7d366f1cc844f27b2084c26c< 4cde55b2feff9504d1f993ab80e84e7ccb62791c affected
… +10 more rows
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I. Basic Information for CVE-2026-68351

Vulnerability Information
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Vulnerability Title
wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: wifi: carl9170: bound memcpy length in cmd callback to prevent OOB read When the firmware sends a command response with a length mismatch, carl9170_cmd_callback() logs the mismatch and calls carl9170_restart() but then falls through to memcpy(ar->readbuf, buffer + 4, len - 4). Since len comes from the firmware and can exceed ar->readlen, this copies more data than the readbuf was allocated for. Bound the memcpy to min(len - 4, ar->readlen) so that the response is still completed -- avoiding repeated restarts from queued garbage -- while preventing an overread past the response buffer.
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 2.6.37版本存在安全漏洞，该漏洞源于carl9170命令回调函数中memcpy长度未正确限制，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

Vendor Product Affected Versions CPE Subscribe
Linux Linux a84fab3cbfdc427e7d366f1cc844f27b2084c26c ~ 38e240996a6a78c94ab07d461fd66e361d55c3c4 -
Linux Linux 2.6.37 -

II. Public POCs for CVE-2026-68351

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III. Intelligence Information for CVE-2026-68351

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Patches & Fixes for CVE-2026-68351 (7)

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

CVE-2026-68136 9.8 CRITICAL net: gro: fix double aggregation of flush-marked skbs
CVE-2026-68300 9.8 CRITICAL sctp: auth: verify auth requirement when auth_chunk is NULL
CVE-2026-68154 9.8 CRITICAL libceph: reject zero bucket types in crush_decode
CVE-2026-68156 9.8 CRITICAL libceph: refresh auth->authorizer_buf{,_len} after authorizer update
CVE-2026-68158 9.8 CRITICAL libceph: Fix multiplication overflow in decode_new_up_state_weight()
CVE-2026-68159 9.8 CRITICAL libceph: bound pg_{temp,upmap,upmap_items} length to CEPH_PG_MAX_SIZE
CVE-2026-68160 9.8 CRITICAL ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps()
CVE-2026-68161 9.8 CRITICAL sctp: close UDP tunnel sockets during netns teardown
CVE-2026-68144 9.8 CRITICAL phonet: pep: fix use-after-free in pep_get_sb()
CVE-2026-68170 9.8 CRITICAL mptcp: fix stale skb->sk reference on subflow close
CVE-2026-68302 9.8 CRITICAL amt: re-read skb header pointers after every pull
CVE-2026-68137 9.8 CRITICAL net/x25: fix use-after-free in x25_kill_by_neigh()
CVE-2026-68388 9.8 CRITICAL smb/client: handle overlapping allocated ranges in fallocate
CVE-2026-68426 9.8 CRITICAL xfrm: fix stale skb->prev after async crypto steals a GSO segment
CVE-2026-68385 9.8 CRITICAL s390/checksum: Fix csum_partial() without vector facility
CVE-2026-68127 9.8 CRITICAL ila: reload IPv6 header after pskb_may_pull in checksum adjust
CVE-2026-68117 9.8 CRITICAL tipc: clear sock->sk on the failed-insert path in tipc_sk_create()
CVE-2026-68381 9.8 CRITICAL ksmbd: pin conn during async oplock break notification
CVE-2026-68123 9.8 CRITICAL openvswitch: fix GSO userspace truncation underflow
CVE-2026-68124 9.6 CRITICAL mctp: 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-2026-68351

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