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CVE-2026-68210— media: stm32: dcmi: unregister notifier on probe failure

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 4.20版本存在安全漏洞，该漏洞源于dcmi_graph_init()在切换复位线前注册异步通知器，若reset_control_assert或reset_control_deassert失败，probe通过err_cleanup返回且驱动程序核心不会调用dcmi_remove()，可能导致通知器未注销。

CVSS 7.8 · High EPSS 0.18% · P7

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux d079f94c90469f413920b9f2b201537fac2ceb06< 222a9301b086852b90d3b092fef436c3f4e927c4 affected
d079f94c90469f413920b9f2b201537fac2ceb06< 37ff63c5d7119cbc5c6bacdcc658add6008a8e1f affected
d079f94c90469f413920b9f2b201537fac2ceb06< 6c6f22b7e6cbc4e8c1e359fc9b190419391c3db7 affected
d079f94c90469f413920b9f2b201537fac2ceb06< 931abe1deb65b919d23fa203d7f6d6fbd4fccd8e affected
d079f94c90469f413920b9f2b201537fac2ceb06< 4b7ee504969e074725e439c949f2483e5fa5572a affected
d079f94c90469f413920b9f2b201537fac2ceb06< 084973ebd67b28f0945c5d45408f86c58b540110 affected
4.20 affected
< 4.20 unaffected
… +6 more rows
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I. Basic Information for CVE-2026-68210

Vulnerability Information
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Vulnerability Title
media: stm32: dcmi: unregister notifier on probe failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: stm32: dcmi: unregister notifier on probe failure dcmi_graph_init() registers the async notifier before dcmi_probe() toggles the reset line. If reset_control_assert() or reset_control_deassert() fails afterwards, probe returns through err_cleanup and the driver core will not call dcmi_remove(). Unregister the notifier before cleaning it up on that error path, matching the successful remove path and the V4L2 async notifier lifetime rules. [hverkuil: added Fixes tag]
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 4.20版本存在安全漏洞，该漏洞源于dcmi_graph_init()在切换复位线前注册异步通知器，若reset_control_assert或reset_control_deassert失败，probe通过err_cleanup返回且驱动程序核心不会调用dcmi_remove()，可能导致通知器未注销。
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 d079f94c90469f413920b9f2b201537fac2ceb06 ~ 222a9301b086852b90d3b092fef436c3f4e927c4 -
Linux Linux 4.20 -

II. Public POCs for CVE-2026-68210

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III. Intelligence Information for CVE-2026-68210

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Patches & Fixes for CVE-2026-68210 (6)

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

CVE-2026-68388 9.8 CRITICAL smb/client: handle overlapping allocated ranges in fallocate
CVE-2026-68136 9.8 CRITICAL net: gro: fix double aggregation of flush-marked skbs
CVE-2026-68137 9.8 CRITICAL net/x25: fix use-after-free in x25_kill_by_neigh()
CVE-2026-68144 9.8 CRITICAL phonet: pep: fix use-after-free in pep_get_sb()
CVE-2026-68127 9.8 CRITICAL ila: reload IPv6 header after pskb_may_pull in checksum adjust
CVE-2026-68154 9.8 CRITICAL libceph: reject zero bucket types in crush_decode
CVE-2026-68123 9.8 CRITICAL openvswitch: fix GSO userspace truncation underflow
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-2026-68117 9.8 CRITICAL tipc: clear sock->sk on the failed-insert path in tipc_sk_create()
CVE-2026-68170 9.8 CRITICAL mptcp: fix stale skb->sk reference on subflow close
CVE-2026-68385 9.8 CRITICAL s390/checksum: Fix csum_partial() without vector facility
CVE-2026-68381 9.8 CRITICAL ksmbd: pin conn during async oplock break notification
CVE-2026-68302 9.8 CRITICAL amt: re-read skb header pointers after every pull
CVE-2026-68426 9.8 CRITICAL xfrm: fix stale skb->prev after async crypto steals a GSO segment
CVE-2026-68300 9.8 CRITICAL sctp: auth: verify auth requirement when auth_chunk is NULL
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-2026-68210

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