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NVD / CVE Program· CNA Linux

CVE-2026-31585: media: vidtv: fix nfeeds state corruption on start_streaming failure

MediumCVSS 5.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.12% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 17cb7957c979529cc98ff57f7ac331532f1f7c83, 25f19e476ab15defe698504212899fdb9f7cd61b, 4bf95f797edd63c93330eafb6d6e670982344b9b; azl3 kernel 6.6.134.1-2 on Azure Linux 3.0 6.6.137.1-1; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 17cb7957c979529cc98ff57f7ac331532f1f7c83, 25f19e476ab15defe698504212899fdb9f7cd61b, 4bf95f797edd63c93330eafb6d6e670982344b9b; azl3 kernel 6.6.134.1-2 on Azure Linux 3.0 6.6.137.1-1; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: media: vidtv: fix nfeeds state corruption on start_streaming failure syzbot reported a memory leak in vidtv_psi_service_desc_init [1]. When vidtv_start_streaming() fails inside vidtv_start_feed(), the nfeeds counter is left incremented even though no feed was actually started. This corrupts the driver state: subsequent start_feed calls see nfeeds > 1 and skip starting the mux, while stop_feed calls eventually try to stop a non-existent stream. This state corruption can also lead to memory leaks, since the mux and channel resources may be partially allocated during a failed start_streaming but never cleaned up, as the stop path finds dvb->streaming == false and returns early. Fix by decrementing nfeeds back when start_streaming fails, keeping the counter in sync with the actual number of active feeds. [1] BUG: memory leak unreferenced object 0xffff888145b50820 (size 32): comm "syz.0.17", pid 6068, jiffies 4294944486 backtrace (crc 90a0c7d4): vidtv_psi_service_desc_init+0x74/0x1b0 drivers/media/test-drivers/vidtv/vidtv_psi.c:288 vidtv_channel_s302m_init+0xb1/0x2a0 drivers/media/test-drivers/vidtv/vidtv_channel.c:83 vidtv_channels_init+0x1b/0x40 drivers/media/test-drivers/vidtv/vidtv_channel.c:524 vidtv_mux_init+0x516/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:518 vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline] vidtv_start_feed+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239

Published
Apr 24, 2026
Updated
Nov 11, 2026
EPSS
0.1% · 2th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 5.10affected
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before f8cccb427e65d725fc0ba05e8900b4676eda268eaffected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before 60f768d46df561e06d92ffcacc00909f37a0f23daffected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before 80900b5424f3454256153ce386388df43b324f63affected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before 17cb7957c979529cc98ff57f7ac331532f1f7c83affected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before 98c22210aeadce67d9d20059f0dbbd01ba7fdbbaaffected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before 25f19e476ab15defe698504212899fdb9f7cd61baffected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before 83110c2c8c46c035c2e0fc8ff3e4991183bf9ccdaffected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before 4bf95f797edd63c93330eafb6d6e670982344b9baffected · git
    • f90cf6079bf67988f8b1ad1ade70fc89d0080905 and later · before a0e5a598fe9a4612b852406b51153b881592aedeaffected · git
Affected versions · NVD (5)

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.10 and later · before 6.6.136
  • linux linux kernel6.7 and later · before 6.12.83
  • linux linux kernel6.13 and later · before 6.18.24
  • linux linux kernel6.19 and later · before 6.19.14
  • linux linux kernel7.0 and later · before 7.0.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.176-16.1.176-1
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 6.19.14-16.19.14-1
openSUSE:Tumbleweedkernel-sourcebefore 7.0.3-1.17.0.3-1.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-31583Apr 24, 2026 · media: em28xx: fix use-after-free in em28xx_v4l2_open()
    31Monitor
  • ← EarlierCVE-2026-31584Apr 24, 2026 · media: mediatek: vcodec: fix use-after-free in encoder release path
    31Monitor
  • Later →CVE-2026-31586Apr 24, 2026 · mm: blk-cgroup: fix use-after-free in cgwb_release_workfn()
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux17cb7957c979529cc98ff57f7ac331532f1f7c83Vendor (CNA)
Linux Linux25f19e476ab15defe698504212899fdb9f7cd61bVendor (CNA)
Linux Linux4bf95f797edd63c93330eafb6d6e670982344b9bVendor (CNA)
Linux Linux60f768d46df561e06d92ffcacc00909f37a0f23dVendor (CNA)
Linux Linux80900b5424f3454256153ce386388df43b324f63Vendor (CNA)
Linux Linux83110c2c8c46c035c2e0fc8ff3e4991183bf9ccdVendor (CNA)
Linux Linux98c22210aeadce67d9d20059f0dbbd01ba7fdbbaVendor (CNA)
Linux Linuxa0e5a598fe9a4612b852406b51153b881592aedeVendor (CNA)
Linux Linuxf8cccb427e65d725fc0ba05e8900b4676eda268eVendor (CNA)
azl3 kernel 6.6.134.1-2 on Azure Linux 3.06.6.137.1-1 · CBL-Mariner ReleasesMicrosoft (MSRC)
cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0Release NotesMicrosoft (MSRC)
debian:linux6.1.176-1 · Debian:12Package registry (OSV)
opensuse:kernel-source7.0.3-1.1 · openSUSE:TumbleweedPackage registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-401 · Missing Release of Memory after Effective Lifetime

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records